Used Ball Screw Drive for sale (26,832)
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Listing
Ostim
9,973 km
Bulk feeder
SCREW CONVEYORSCC – ISO 9001 | Made to Order
Call
Condition: new, Year of construction: 2026, functionality: fully functional, machine/vehicle number: SCC, warranty duration: 12 months, volume flow: 45 m³/h, screw conveyor length: 6,000 mm, type of input current: three-phase, screw diameter: 323 mm, input voltage: 400 V, rotational speed (max.): 240 rpm, rotational speed (min.): 140 rpm, Custom-manufactured to order. Send us your diameter, length, and installation angle — receive a full technical quote within 24 hours.
INOTEK SCREW manufactures heavy-duty SCC-type cement screw conveyors for bulk material handling in cement plants, dry mortar facilities, fly ash transfer, lime and gypsum processing lines. Based in Ankara, Turkey, we have supplied equipment to over 40 countries with full export documentation and ISO 9001:2015 certified production.
KEY SPECIFICATIONS:
- Diameter: Ø114 / Ø168 / Ø219 / Ø273 / Ø323mm – any size made to order
- Drive speed: 140 / 200 / 240 RPM
- Motor power: 1.5 kW to 22 kW (IE2 efficiency class) — Siemens motors standard
- Material: Carbon steel S235/S355 standard | AISI 304/316 stainless steel on request
- Screw flights: cold-rolled, 3–10mm thickness
- Orientation: horizontal, inclined (up to 45°), or vertical
- Custom inlet/outlet: conical, square, or rectangular
- Surface treatment: primer + epoxy topcoat standard | hot-dip galvanizing on request
CAPACITY BY DIAMETER (approximate, horizontal, cement powder):
- Ø114 mm → 4–8 m³/h
- Ø168 mm → 10–18 m³/h
- Ø219 mm → 20–30 m³/h
- Ø273 mm → 30–40 m³/h
- Ø323 mm → 40–55 m³/h
All values depend on RPM, inclination angle, and material bulk density.
Custom diameters and capacities available on request.
APPLICATIONS:
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Cement | Fly ash | Limestone powder | Dry mortar | Gypsum | Clay | Silo filling & emptying | Batching plants | Asphalt facilities
WHY INOTEK:
✔ CE marked — compliant with EU Machinery Directive 2006/42/EC
✔ ISO 9001:2015 certified factory
✔ 12 months warranty — replacement parts shipped internationally
✔ Exported to 40+ countries – full documentation (packing list, EUR.1, certificate of origin, test reports)
✔ Trusted by: Coca-Cola | Unilever | Anadolu Efes | Limak Holding | OYAK | Cengiz İnşaat
✔ 20–35% more competitive than equivalent European pricing
✔ Production lead time: 3–5 weeks from drawing approval
PRICING REFERENCE:
Entry-level unit Ø114mm — from €1,500 EXW Ankara.
All diameters, lengths, and configurations quoted within 24 hours.
REQUEST A FREE QUOTE WITHIN 24 HOURS:
Send us your required diameter, length, material type, and installation angle – we return a full technical offer and delivery schedule.
Distributor and OEM partnerships welcome. Contact us to discuss exclusive regional agreements.
Listing
Borken
7,614 km
Roller conveyor
mit Antrieb/With drive/Met aandrijving0,99m
Call
Condition: excellent (used), Interroll roller conveyor 0.99m with drive
The Interroll roller conveyor element is in a very good condition. Furthermore, the roller conveyor has its own drive motor.
Width: 400mm
Length: 990mm
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Complete factory closure,
large selection of storage platforms, pallet racks, shelf racks, paternosters.
High quality industrial machines, lathes, grinding machines, hand machines
Further articles - new and used - you will find in our shop!
International shipping costs on request!
Listing
Strenči
8,163 km
Board separator conveyor
Drive experts UK CA
Call
Condition: new, Board separator conveyor
Outfeed after HewSaw
Manufacturer / model: Drive experts UK CA
Type: 3E100L4D-FC-A0-D36
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Power: 3.0 kW
RPM:
~1450 rpm (50 Hz)
~1750–1760 rpm (60 Hz)
Listing
Spanbroek
7,462 km
Roller conveyor
HOLZMA Rollenbahn | Drive palletrollenbaan
Call
Condition: used, Segment length: 5450 mm
Length: 5450 mm
web width: 2020 mm
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frame width: 2200 mm
Roll diameter: 105 mm
roller pitch: 200 mm
Type: Zware rollenbaan
Listing
Wiefelstede
7,607 km
Gear motor 0.75 kW 13.7 rpm
Watt DriveSUA 506B IA 81N4 WAF81N4
Call
Condition: good (used), gear motor, electric motor, electric gear motor
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-Manufacturer: Watt Drive, gear motor type SUA 506B IA 81N4
-Speed: 13.7 rpm
-Engine: Type WAF81N4 0.75 kW
-Shaft: Ø 30 x 125 mm
-Protection class: IP55
-Dimensions: 480/210/H240 mm
-Weight: 37 kg
Listing
Wiefelstede
7,607 km
Servo actuator
HD Harmonic DriveRH-8-3006-T-SP
Call
Condition: good (used), servo motor, DC motor, servo gear motor, servo actuator, drive actuator, servo drive
-Manufacturer: HD Harmonic Drive, Hi-T Drive SERVO ACTUATOR
-Type: RH-8-3006-T-SP
-Shaft: Ø 18 x 20 mm
-Dimensions: 200/60/H65 mm
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-Weight: 1.0 kg
Listing
Wiefelstede
7,607 km
DC gear motor 160 V 146 rpm
DriveSO GP 86-2L
Call
Condition: used, DC motor, servo motor, gear motor, electric motor, DC gear motor, DC shunt gear motor
-Manufacturer: Kählig, DC gear motor
-Speed: 146
-Voltage: 160 V
-Power: 300 W / 3000 rpm
-technical data: see photo type plate
-Shaft: Ø 16 x 27 mm
-Dimensions: 320/120/H155mm
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-Weight: 10 kg
Listing
Wiefelstede
7,608 km
Gear motor 0.37 kW 246 rpm
Watt DriveHG OKG 71N4
Call
Condition: used, Gear motor, electric motor, electric gear motor
-Manufacturer: Watt Drive, gear motor type HG OKG 71N4
-Speed: 246 rpm
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-Power: 0.37kw
-Torque: 14.4 Nm
-Shaft: Ø 20 x 40 mm
-Protection class: IP55
-Dimensions: 400/170/H210 mm
-Weight: 15kg
Listing
Zheng Zhou Shi
11,505 km
Ball mill for powder and mining plant
Mingyuan Ball Mill For Fine PowderPowder grinding mill for coal, silica
Call
Condition: new, functionality: fully functional, power: 55 kW (74.78 HP), Year of construction: 2026, Ball Mill for Powder and Mining Plant: Structure, Function, and Technical Details
A ball mill is a key grinding machine widely used in mining, metallurgy, cement, chemical, and powder-making industries. It is designed to grind various ores and other materials into fine powder through impact and attrition between steel balls and the material inside a rotating cylindrical shell. In mining plants, ball mills are essential for ore beneficiation, preparing materials for flotation, magnetic separation, or leaching processes. In powder production, they ensure uniform particle size and high surface area for further processing.
Working Principle
The ball mill operates on a simple yet effective principle: as the cylindrical shell rotates around its horizontal axis, the grinding media (steel or ceramic balls) are lifted along the inner wall by centrifugal force and friction. When they reach a certain height, they fall freely, striking and grinding the material below. This repeated motion causes both impact and abrasion, reducing the material to the desired fineness. The grinding process can be performed in dry or wet conditions depending on the application.
Structural Composition
A standard ball mill consists of several main components:
Feeding part: Equipped with a feeder or screw conveyor to ensure uniform material input.
Discharging part: Can be grate type or overflow type, depending on the discharge method.
Rotating part: The cylindrical shell made of steel plates, lined with wear-resistant liners.
Transmission system: Includes motor, reducer, small transmission gear, and electrical control.
Grinding media: Steel balls or ceramic balls of different diameters for efficient grinding.
The internal liner design and ball size distribution are optimized to achieve maximum grinding efficiency and minimal energy consumption.
Technical Details
Typical Specifications:
Feeding size: ≤25 mm
Discharge size: 0.074–0.4 mm
Capacity: 0.65–615 t/h (depending on model and material hardness)
Cylinder speed: 18–38 r/min
Power: 18.5–4500 kW
Liner material: High manganese steel, rubber, or alloy steel
Grinding media load: 30–45% of cylinder volume
Operating Modes:
Dry grinding: Suitable for materials that must remain moisture-free, such as cement clinker, limestone, and quartz.
Wet grinding: Common in ore beneficiation, where water or slurry improves grinding efficiency and particle uniformity.
Application in Mining Plants
In mining operations, ball mills are used after crushing to further reduce ore size and liberate valuable minerals. They are integrated into grinding circuits with classifiers, hydrocyclones, and flotation systems. The ground material is classified by size, and oversized particles are returned to the mill for regrinding. This closed-circuit system ensures consistent product fineness and efficient energy use.
Common Applications:
Gold, copper, iron, and zinc ore grinding
Cement clinker and slag processing
Silicate and ceramic powder production
Coal and mineral powder preparation
Conclusion
A ball mill is an indispensable piece of equipment in both powder production and mining beneficiation plants. Its ability to grind materials into fine, uniform particles makes it vital for downstream processes such as flotation, sintering, and chemical reactions.
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Listing
Zheng Zhou Shi
11,505 km
Crushing equipment
Mingyuan Dry and Wet Ball MillCustomerizable Model for ball mill plant
Call
Condition: new, functionality: fully functional, Year of construction: 2026, Dry and Wet Ball Mill: Structure, Operation, and Technical Details
A ball mill is a fundamental grinding device used in mineral processing, cement manufacturing, chemical production, and other industrial applications. It works by rotating a cylindrical shell filled with grinding media—usually steel balls—causing impact and friction that reduce materials to fine powder. Based on the grinding environment, ball mills are classified into dry and wet types, each suited for specific materials and process requirements.
Working Principle
Both dry and wet ball mills operate on the same mechanical principle. The rotating cylinder, driven by a motor through a gear system, lifts the grinding media and material along the inner wall. As the rotation continues, the balls fall under gravity, striking and grinding the material. The difference lies in the presence or absence of a liquid medium during grinding.
Dry Ball Mill
A dry ball mill is used when the material must remain moisture-free or when water could affect product quality. It is commonly applied in cement clinker, limestone, quartz, and refractory material grinding. The discharge can be either grate type or overflow type, depending on the desired fineness.
Technical Features:
Feeding size: ≤25 mm
Discharge size: 0.075–0.4 mm
Capacity: 0.65–90 t/h
Liner material: High manganese steel or wear-resistant alloy
Drive system: Gear-driven or direct-coupled motor
Dust control: Equipped with air exhaust and dust collector
Advantages:
Suitable for materials sensitive to moisture
No drying process required after grinding
Lower corrosion risk and simpler maintenance
Easier material classification and separation
Limitations:
Dry grinding produces more dust and heat, requiring efficient ventilation and dust collection systems.
Wet Ball Mill
A wet ball mill operates with water or another liquid medium added to the material. The slurry formed during grinding improves efficiency by reducing friction and preventing excessive heat buildup. It is widely used in ore beneficiation, ceramics, and chemical industries.
Technical Features:
Feeding size: ≤25 mm
Discharge size: 0.074–0.2 mm
Capacity: 0.65–615 t/h
Liner material: Rubber or high-chromium steel
Discharge method: Overflow or grate type
Auxiliary equipment: Classifier, pump, and thickener for slurry circulation
Advantages:
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Higher grinding efficiency and finer particle size
Reduced dust and noise levels
Continuous operation suitable for beneficiation circuits
Better control of particle uniformity
Limitations:
Requires drying if the final product must be in powder form and involves more complex slurry handling.
The selection between dry and wet grinding depends on the material characteristics, downstream process, and environmental conditions. Dry mills are preferred for materials that must stay moisture-free, while wet mills are ideal for fine grinding and slurry-based processes.
Conclusion
Dry and wet ball mills share the same mechanical structure but differ in their grinding environment and application scope. The dry type offers simplicity and low maintenance for moisture-sensitive materials, while the wet type provides higher efficiency and finer output for mineral and chemical processing. Understanding their technical parameters and operational differences ensures optimal equipment selection, improved productivity, and reliable performance in industrial grinding operations.
Listing
Zheng Zhou Shi
11,505 km
Mill / grinding mill
Batch Ball Mill, Silica grinding millQuartz ball mill, silica powder grinding
Call
Year of construction: 2026, condition: new, ceramic ball mill ,Batch ball mill ,also called ceramic ball mill ,it is used for fine grinding of feldspar,quartz,clay,ore and so on.The ceramic ball mill is mainly used for material mixing, grinding,uniform product fineness,and saving power.It can be dry or wet.The machine can use different liner types according to production needs to meet different needs.The fineness of the grinding operation is controlled by the grinding time
ceramic ball mill Working principle
when ball mill working,steel balls inside drum will rotate with the drum to some height,and then steel balls fall down with materials to reach the point of grinding.
Working Principle of Ceramic ball mill
ceramic ball mill ,Intermittent ball mill grinding operation is finished in the cylinder body. When the cylinder rotates, materials ascend to a certain height and then fall along a certain path due to the balls' gravity. Two forces are generated on the balls inside. One is the force on balls through tangent direction; the other is a opposite force in the contrast to the diameter of balls, as a result of the force generated when the balls slide down. These two forces will constitute a couple for the steel balls. The balls are squeezed between the cylinder and the adjacent steel balls, so the couple can make unequal-sized friction force. The balls will orbit along with the cylinder axis and then fall down, which can produce a strong impact force on the ores in the cylinder body and, as a result, the ores will be crushed. In conclusion, the ores in the cylinder body are mainly crushed by composite effect of peeling force, impact force and extrusion force.
Ceramic ball mill also named Intermittent ball mill which adopts the wet intermittent operation, is used for fine grinding and mixing the material such as feldspar, quartz, clay ceramic raw materials. The discharging and the mud size can through through 1000 sieve pore. This machine is high milling machinery, materials should be Broken in the fineness of the state into the grinding mill to get the highest efficiency and economic benefits.
The cement mill is key equipment for the grinding process of the cement clinker after the crushing process of it. It is mainly used in the cement silicate product industry. After long term design and manufacture of the cement mill, our company now has series of cement mill with various specifications to meet with different requirement from our customers.
Features of Cement Mill
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Our company adopts suitable transmission methods according to different specifications. We have brim drive and center drive as transmission form. The cylinder adopts new type step lining to increase the grinding area. And it is easily repairable and changeable. The new designed separate-chambered structure adopts flexible lifting blade and fixed lifting blade and it is easily fixed and repaired.
Technical Details
We have different models and options for different requirements, please contact us for more info.
Listing
Zheng Zhou Shi
11,505 km
Glass grinding machine
Henan Mingyuan Ceramic /Silica Ball MillBatch ball mill for glass ceramic making
Call
Condition: new, Year of construction: 2026, power: 7.5 kW (10.20 HP), Batch ball mills find applications in various industries where the processing of materials in discrete batches is required. The versatility of batch ball mills makes them suitable for a range of applications. Here are some common batch ball mill applications:
1. Ceramics Industry:
- *Glaze Preparation:* Batch ball mills are extensively used in the ceramics industry for preparing glazes. Raw materials such as feldspar, quartz, and clay are ground with ceramic balls to achieve the desired particle size for glaze formulation.
2. Chemical Industry:
- *Material Grinding:* Batch ball mills are used for grinding and blending various chemical materials. This includes the production of pigments, dyes, and other specialty chemicals where precise particle size control is crucial.
3. Pharmaceuticals:
- *Drug Formulation:* In pharmaceutical manufacturing, batch ball mills are used for grinding and blending powders to create drug formulations. The controlled environment provided by these mills is essential for maintaining the integrity of pharmaceutical compounds.
4. Food Industry:
- *Ingredient Mixing:* Batch ball mills may find application in the food industry for mixing and grinding ingredients. This can include the production of food additives, flavorings, and other powdered or granular products.
5. Mining and Minerals Processing:
- *Ore Grinding:* Batch ball mills are used in mining and minerals processing for grinding minerals and ores. The controlled grinding helps in obtaining the desired particle size for subsequent processes, such as mineral separation or extraction.
6. Paints and Coatings:
- *Pigment Dispersion:* In the paints and coatings industry, batch ball mills are employed for dispersing pigments into paint formulations. Achieving a uniform particle size is crucial for the quality and appearance of the final coating.
7. Building Materials:
- *Raw Material Grinding:* Batch ball mills are used in the preparation of raw materials for the production of building materials, such as cement and concrete. Grinding of materials like limestone and clay helps in obtaining the desired fineness for subsequent processes.
8. Electronic Materials:
- *Ceramic Powder Processing:* In the electronics industry, batch ball mills can be employed for processing ceramic powders used in the production of electronic components and insulating materials.
9. Research and Development:
- *Material Testing:* Batch ball mills are often used in research and development laboratories for testing and optimizing material formulations. They provide a controlled environment for small-scale processing and experimentation.
10. Customized Applications:
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- *Specialized Processes:* Batch ball mills can be adapted for various specialized processes in different industries where precise grinding and mixing are required. Custom modifications can be made based on specific application requirements.
When using a batch ball mill, it's important to consider factors such as the type of material being processed, desired particle size, and the specific requirements of the end product. Additionally, following the manufacturer's guidelines and maintaining proper operating conditions are essential for efficient and effective milling processes.
Technical details
We have different options for different requirements, please contact our team for more info.
Listing
Zheng Zhou Shi
11,505 km
Cement mill,clinker grinding plant
Clinker grinding mill / cement ball millcement grinding with air classifier
Call
Year of construction: 2026, condition: new, functionality: fully functional, A cement clinker grinding mill is a specialized equipment used to grind the hard nodular clinker into fine powder, which is cement. Most cement is currently ground in ball mills and also vertical roller mills, which are more effective than ball mills.
Here are key features and information about cement clinker grinding mills:
1. Raw Materials:
- The main raw material for making cement is clinker, which is produced by sintering limestone and clay. Other materials such as gypsum, fly ash, or slag may also be added during the grinding process to achieve specific properties.
2. Grinding Process:
- The clinker and other additives are finely ground in the grinding mill to produce cement. The grinding process is a crucial step in cement production and contributes significantly to the final quality of the product.
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3. Types of Mills:
- Ball Mills: Traditional ball mills are commonly used for grinding clinker. They operate by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground.
- Vertical Roller Mills (VRM): VRM technology has become increasingly popular for clinker grinding. These mills use a rotating table with rollers to crush and grind the clinker, providing energy efficiency and a smaller footprint compared to ball mills.
4. Gypsum Addition:
- Gypsum is often added during the grinding process to control the setting time of the cement. It prevents flash setting of the clinker and facilitates the formation of a workable and pumpable cement paste.
5. Quality Control:
- Quality control measures, such as monitoring the fineness of the cement, chemical composition, and other properties, are implemented during the grinding process to ensure the final product meets the required specifications and standards.
6. Clinker Cooling:
- Before grinding, the clinker is produced by heating the raw materials in a kiln. The clinker is then cooled before entering the grinding mill to prevent excessive heat build-up during grinding.
7. Dust Collection and Environmental Considerations:
- Dust collectors and air pollution control systems are often employed to capture and control the dust generated during the grinding process, addressing environmental and safety concerns.
8. Packaging and Storage:
- After grinding, the cement is typically stored in silos before being packaged in bags or dispatched in bulk for distribution to construction sites or for sale in the market.
Cement clinker grinding mills play a crucial role in the cement production process, and advancements in technology continue to improve the efficiency and environmental sustainability of the grinding process.
Technical details
We have different options for different requirements, please contact our team for more info.
Listing
Zheng Zhou Shi
11,505 km
Powder grinding mill
ball mill for mining &fine powder makingsilica/Barite/limestone powder plant
Call
Condition: new, Year of construction: 2026, power: 300 kW (407.89 HP), Ball Mill for Mining & Fine Powder Making:
A ball mill is a fundamental grinding device widely used in mining, metallurgy, cement, and chemical industries. It is designed to grind ores and other materials into fine powder through impact and attrition between steel balls and the material inside a rotating cylindrical shell. In mining plants, ball mills are essential for ore beneficiation, while in powder-making industries, they ensure uniform particle size and high surface area for further processing.
Working Principle
The ball mill operates on the principle of impact and friction. As the cylindrical shell rotates around its horizontal axis, the grinding media—usually steel or ceramic balls—are lifted along the inner wall by centrifugal force and friction. When they reach a certain height, they fall freely, striking and grinding the material below. This repeated motion breaks down the material into fine particles. The process can be carried out in dry or wet conditions depending on the application.
Structural Composition
A standard ball mill consists of several main components:
Feeding part: Ensures uniform material input through a feeder or screw conveyor.
Discharging part: Can be grate type or overflow type, depending on the discharge method.
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Rotating part: The cylindrical shell made of steel plates, lined with wear-resistant liners.
Transmission system: Includes motor, reducer, small transmission gear, and electrical control.
Grinding media: Steel or ceramic balls of various diameters for efficient grinding.
The internal liner design and ball size distribution are optimized to achieve maximum grinding efficiency and minimal energy consumption.
Technical Details/Typical Specifications:
Feeding size: ≤25 mm
Discharge size: 0.074–0.4 mm
Capacity: 0.65–615 t/h (depending on model and material hardness)
Cylinder speed: 18–38 r/min
Power: 18.5–4500 kW
Liner material: High manganese steel, rubber, or alloy steel
Grinding media load: 30–45% of cylinder volume
Operating Modes:
Dry grinding: Used for materials that must remain moisture-free, such as cement clinker, limestone, and quartz.
Wet grinding: Common in ore beneficiation, where water or slurry improves grinding efficiency and particle uniformity.
Application in Mining and Powder Production
In mining operations, ball mills are used after crushing to further reduce ore size and liberate valuable minerals. They are integrated into grinding circuits with classifiers, hydrocyclones, and flotation systems. The ground material is classified by size, and oversized particles are returned to the mill for regrinding. This closed-circuit system ensures consistent product fineness and efficient energy use.
In fine powder production, ball mills are used to produce materials such as silicate, ceramic powder, refractory materials, and chemical raw materials. The uniform particle size achieved by ball milling enhances product quality and performance in downstream applications.
Conclusion
A ball mill is an indispensable piece of equipment for both mining and fine powder making. Its ability to grind materials into fine, uniform particles makes it vital for ore beneficiation and industrial powder production. With flexible configurations, high efficiency, and reliable operation, modern ball mills provide a cost-effective and energy-efficient solution for large-scale grinding, ensuring consistent quality and productivity across diverse applications.
Listing
Zheng Zhou Shi
11,505 km
Roll forming line
Rod ball mill / Rod Grinding MillFor Sand and mining beneficiation plant
Call
Condition: new, Year of construction: 2026, We have various kinds of ball grinding mill such as batch ball mill, rod mill, cement ball mill, mining ball mill, welcome to contact our team for further details according to your specific requirements.
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Listing
Zheng Zhou Shi
11,505 km
Ball Mill for Ore mining & sand grinding
batch ball mill & wet mining ball mill2400X4500 ball mill
Call
Condition: new, fuel type: electric, Year of construction: 2026, machine/vehicle number: 2700x4500, Equipment: low noise, Main Technical parameters of the ball mill
Drum diameter: 2400mm
Drum length: 4500mm
Motor power: 320KW
Max input size: 25mm
Capacity:35-60 t/h
Weight: 72Tons
Ball loading: 30Tons
Besides this model, we also have the other models like 2700x4500, 3200x4500, 1830x13000mm, and so on, and we can also offer customerization service, we can also provide complete grinding solution for various industries like cement, quartz, ore beneficiation plant, and so on, welcome to contact us for more info.
A ball mill is a common grinding machine used to grind and blend materials for use in mineral processing, including ore mining and the production of silica (silicon dioxide). When it comes to ore mining and silica grinding, the characteristics of the ore and the final product requirements will play a crucial role in selecting the appropriate ball mill.
Here are some considerations for using a ball mill in ore mining and silica grinding:
1. Ore Characteristics:
- Hardness: The hardness of the ore determines the type of ball mill that is most suitable. Harder ores may require a more robust and wear-resistant ball mill.
- Particle Size Distribution: The initial particle size of the ore affects the grinding process. Different ores may require different approaches to achieve the desired particle size.
2. Silica Grinding:
- Silica Content: If the primary goal is to grind silica, it's important to consider the initial silica content and the desired final particle size. Silica grinding often requires special attention to prevent excessive wear on the milling equipment.
3. Ball Mill Type:
- Overflow vs. Grate Discharge: The type of discharge from the ball mill can impact the final product and the grinding efficiency. Overflow mills are generally used for most grinding applications, while grate discharge mills are more suitable for certain types of ores.
4. Mill Size and Capacity:
- Mill Diameter and Length: The size of the ball mill should be selected based on the amount of material to be ground and the desired throughput.
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- Capacity: Ensure that the chosen ball mill has the capacity to handle the required volume of material efficiently.
5. Grinding Media:
- Material and Size: The choice of grinding media (balls or cylpebs) and their size depends on the hardness of the ore and the desired final particle size. Different grinding media materials can impact the purity of silica during grinding.
6. Liners and Lifting Aids:
- Liners: Consider the type of liners used in the ball mill to protect the shell and optimize the grinding process.
- Lifting Aids: Some mills use lifting aids to enhance the grinding action and promote better mixing of the material.
7. Control and Monitoring Systems:
- Automation: Utilize control systems to automate the milling process and ensure optimal performance.
- Monitoring: Regularly monitor the milling process to adjust parameters as needed for consistent and efficient operation.
8. Safety Measures:
- Safety Systems: Implement safety features to protect personnel and equipment during operation.
Always follow the manufacturer's recommendations and guidelines for operation and maintenance to ensure safe and efficient use of the ball mill in ore mining and silica grinding applications.
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Berlin
7,944 km
Screw compressor
RennerRSKF-PRO 7,5
Condition: ready for operation (used), Year of construction: 2023, power: 7.5 kW (10.20 HP), pressure (min.): 6 bar, pressure (max.): 15 bar, noise level: 62 dB, compressed air tank capacity: 270 l, The machine has already been dismantled and stored by a qualified technician.
TECHNICAL DETAILS
Operating overpressure: 15 bar
Delivery rate (at 15 bar): 400 - 790 l/min
Delivery rate (at 13 bar): 430 - 860 l/min
Delivery rate (at 10 bar): 330 - 1,090 l/min
Delivery rate (at 8 bar): 330 - 1,240 l/min
Delivery rate (at 6 bar): 330 - 1,370 l/min
Volumetric flow rate: 90 m³/h
Air connection: 1/2" inches
MACHINE DETAILS
Compressed air tank: 270 l / 11 bar, upright, galvanized
Residual oil content at 20°C max.: 0.01 mg/m³
Differential pressure wet, saturated: 110 mbar
Rated power of drive motor: 7.5 kW
Operating voltage / frequency: 400 ~3 / 50 V/Hz
Sound level: 62 dB(A)
Dimensions & Weight
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Dimensions (L x W x H): 1,079 x 553 x 1,014 mm
Machine weight: 273 kg
EQUIPMENT
Refrigerant dryer
Frequency control
Prefilter grid
Electronic control RENNERtronic Touch
Level-controlled condensate drain KN5 230VAC, shortened version
Schneider mounting kit ABZ-Eco 3100 Uni condensate drain Ecomat
Schneider condensate collection line, 3 connections
Pre-filter LPPN 73 FF5
Particle filtration 5 microns
Sub-micron filter LPPN 73 SMA
Particle filtration 0.01 microns
Wall mount incl. connection kit for 2 filters LPP 23 - LPP73
2x connection hose VSL 1/2"-1300 mm
Oil-water separator KON-P 5
Note: Accessories are without guarantee. The principle applies: "Item purchased as seen." The prospective buyer must verify the completeness of the item on site.
Listing
Oak Forest
851 km
Multi spindle screw machine
ACME1-5/8" RBN-8
Call
Condition: used, ACME-GRIDLEY 1-5/8" RBN-8
SN: AM-40272
Mfd. 1967
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Motor and Controls
Stock reel and stand
Chip conveyor
Tooled as pictured
Cross slides in 8, 1, 4, 5,
Cutoff in 6th Pos.
5th Pos. Universal Threading
7th Pos. Accelerated Reaming
Spare parts and tooling
Call for more information
ETS to Stem .0015
End Tool Slide 6th Pos. has been milled out to accept a rotary slotting attachment.
Custom made special block that end tool slide holder attaches to was using a floating reamer in that position. (Pictured)
Cleaned and Painted
Listing
Oak Forest
851 km
Multispindle Screw Machine
Wickman1-3/4" 6-Spindle
Call
Condition: used, Wickman 1-3/4" 6-Spindle
SN: 16814
Electromagnetic Clutch
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Stock Reel and Stand
Threading
Chip Conveyor
6 Cross Slides
4th Pos. Logan Universal Threading
Cleaned and Painted
Recently taken out of Production
Checked under power
Can be equipped for your requirements
Listing
San Marcos
1,995 km
Inline Screw Capping Machine
ResinaNRK-400
Call
Condition: excellent (used), Year of construction: 2023, functionality: fully functional, type of input current: three-phase, total width: 1,321 mm, total length: 1,067 mm, total height: 2,692 mm, input voltage: 240 V, input frequency: 60 Hz, Equipment: documentation/manual, Model NRK-400 In-Line Screw Capping Machine complete with conveyor and guide rails, gripper chains and gripper blocks, four pairs
of quills (cap tightening discs), Cap H-26 Hopper/Sorter, cap delivery and application system for 99.8% efficiency.
This system can handle both Lug and Screw caps up to 350 caps per minute, depending on product size and condition. The machine can be equipped with steam heating of caps as well as Steam or Gas injection.
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Compatible with caps ranging from 10-70mm.
Include touchscreen controls, power height adjustment, pneumatic "on-the-fly" adjustable clutches, power height adjustable gripper belts, electronically controlled safety switches, Allen-Bradley controls, locking safety interlock switches, container spacing unit, LED safety stack lights, lock out tag out systems.
Auction
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Auction ended
Nordrhein-Westfalen
7,671 km
Twin screw extruder
LeistritzZSE 50 GL
Year of construction: 1995, condition: ready for operation (used), functionality: fully functional, power: 52 kW (70.70 HP), screw conveyor diameter: 49 mm, machine/vehicle number: DE27566, TECHNICAL DETAILS
Capacity: 150 – 250 kg/h
Screw diameter: 2 x Ø 49.7 mm
L/D ratio: 32D
MACHINE DETAILS
Motor power: 52 kW (DC)
Control system: analog, contactor-controlled system
EQUIPMENT
Synchronous motor
Degassing
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Vacuum pump
Trust Seal
Dealers certified through Used-Machines

Listing
Netherlands
7,544 km
Baler 60 t, with 37 kW drive power
PresonaLP 60 VH1
Call
Condition: reconditioned (used), Year of construction: 2015, operating hours: 30,143 h, functionality: fully functional, pressing force: 60 t, filling opening width: 1,100 mm, filling opening length: 1,500 mm, bale width: 1,100 mm, bale height: 750 mm, bale weight: 570 kg, overall weight: 20,000 kg, oil tank capacity: 600 l, power: 37 kW (50.31 HP), year of last overhaul: 2025, volume flow: 800 m³/h, Technical data baler:
Manufacturer Presona AB, Sweden
Type LP 60 VH1
Year of construction 2015
Total operating hours, 30,143 hours, as of July 2025
Effective pump running time onl 6,527 hours, as of July 2025
Number of pressed bales 115,193 bales, as of July 2025
Press force pre press 25 t
Main press force 60 tonnes
Specific pressing force 73N/cm²
Dimensions of feed chute 1,500 x 1,100 mm
Filling volume / pressing cycle 2.7 m³
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Theoretical throughput capacity 800 m³/hour
Throughput capacity under operating conditions 350 m³/hour
Bale dimensions 1,100 x 750 mm
Drive power 37 kW
Tying 5-fold vertical, fully automatic
Throughput capacity with a
Bulk weight of 50 kg/cbm 11 to 14 tonnes/hour
Bale weights 420 to 570 kg, depending on material
Hydraulic oil tank volume 600 litres
Baler dimensions assembled with hopper 10,100 x 3,750 x 4,310 mm (l x w x h)
Transport dimensions excluding press 10,100 x 2,400 x 3,000 mm (l x w x h)
Machine weight press approx. 20 tonnes
Condition of the press:
The press was partially overhauled in our workshop and then tested in manual and automatic mode.
The following overhaul work was carried out:
Machine cleaned, partially derusted and partially repainted
Hydraulic oil tank emptied and cleaned
Oil filter and air filter replaced, new hydraulic oil filled
Press ram dismantled and cleaned
All four rollers removed from the press ram and replaced
Grease cartridges of the automatic roller lubrication system replaced
Slide rails cut out from the press floor in the press room
Underbody reinforced with welded sheets
New HARDOX slide rails welded in
Wire station with deflection rollers for the lower wire cleaned and made operational
Slide rails cut out from the floor in the press channel
New HARDOX slide rails welded in
Both side walls of the press channel dismantled, derusted
Worn side wall plates cut out
Complete side walls covered with new wear plates and welded
Main hydraulic cylinder dismantled and disassembled for inspection
Piston rod replaced, cylinder tube honed
Complete seal set replaced, pressure test carried out
Vertical needle system for binding dismantled, cleaned, wire deflection rollers made functional and serviced
Chain cleaned, greased, chain tension readjusted
Drillomat cleaned, wire knife, drill shafts and drill fingers checked, retightened with torque and serviced
Machine checked, general maintenance work carried out and press tested in manual and automatic mode
Comments:
The press is sold without a conveyor belt and without wire stations. Inspections are possible after agreement. We will not assume liability for the given technical data and possible errors.
Listing
Mönchengladbach
7,640 km
Screw compressor
AirpolKT5
Call
Condition: used, Year of construction: 2021, functionality: fully functional, overall weight: 385 kg, power: 5.5 kW (7.48 HP), volume flow: 58 m³/h, operating pressure: 8 bar, pressure (max.): 8 bar, We are offering this used Airpol KT5 screw compressor, manufactured in 2021, for sale.
Manufacturer: Airpol
Model: KT5
Serial number: 521271821
Year of manufacture: 2021
Air output: 58 m³/h
Overpressure: 8 bar
Power: 5.5 kW
Weight: 385 kg
Power supply: 400 / 50 V/Hz
The compressor was used in our production facility in Poland, which we have since closed. It has been well maintained. Maintenance was performed in 2022, 2023, 2024, and 2025. It can be inspected and tested during our regular business hours at our production facility in Mönchengladbach.
If you have any questions or require further information, please do not hesitate to contact us.
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Listing
Wiefelstede
7,607 km
Conveyor screw, washing and dewatering screw
WIPADEWS 500-1
Call
Condition: excellent (used), Washing and dewatering screw, conveyor screw, transport screw, screw conveyor, conveying technology, pipe conveyor screw, trough conveyor screw, trough conveyor screw
-Conveyor screw: Washing and dewatering screw
-Version: Stainless steel
-Drive motors for augers: 2 units, 3 kW, 60 rpm
-Conveyor screws: Ø 510 mm
-Auger pitch: 4100 mm
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-Inlet/Outlet: mm
-Number: 2 washing and dewatering screws available
Price: per piece
-Dimensions: 5460/2090/H2180 mm
-Weight: 2180 kg
Listing
Trittau
7,709 km
Screw compressor
NUAIRStar Vega
Call
Condition: used, In our opinion, the machine is in good used condition and can be inspected
under power by appointment.
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Accessories, tools and clamping devices shown are only included in the scope
of delivery
if this is noted in the additional information.
Subject to changes and errors in the technical data and information as well
as
prior sale!
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