Used Reishauer Thread Grinding Machine for sale (65,599)

Condition: used, grinding length 4000 mm grinding width 1450 mm workpiece height 1250 mm control Siemens 840 D workpiece weight 11000 kg column daylight 1460 mm table surface area 4000 x 1250 mm table feed 1 - 45 m/min cross rail - adjustment 1250 mm total power requirement 40 kW dimensions of the machine ca. 12,3 x 6 x 4,8 m Equipment/Accessories: - 1 universal grinding support, 7.5 kW Lhodpfsy A Tacjx Akyef Swivel range grinding spindle +/- 110° grinding disc dimensions Ø 500 x 60 mm Vertical adjustment 350 mm with puller - 1 peripheral grinding support, 22.5 kW Grinding wheel dimension Ø 600 x 100 mm Vertical adjustment 150 mm with puller - with 6 magnetic plates arranged on the table - seperate clamping table - various grinding wheels and flanges - Technical documentation

Condition: used, Year of construction: 2009, grinding diameter - internal max. 600 mm grinding diameter - cylindrical max. 800 mm control Siemens Sinumerik 840 D internal grinding depth max. 800 mm External grinding length max. 600 mm turning speed range - stepless 1-795 U/min workpiece length max. 800 mm Workpiece spindle unit (U/B1/L adjustment): - Travel (U axis): 300 mm - Swivel angle (B1 axis): -0.5°/+12° - Drive power of the workpiece spindle: 8.5 kW - Speed range (infinitely variable): 1-795 rpm - Setup speed (tapping): 10 rpm - Spindle head size A 8 according to DIN 55026 - Through bore 58.5 mm - Workpiece diameter max. 830 mm - Workpiece length (clamped in flight) max. 800 mm - Workpiece length (clamped between centers) max. 800 mm - Load capacity at spindle head max. 6100 N Internal grinding device (Z1/X1/B2): - Travel (Z1 axis): 1100 mm - Travel (X1 axis): 150 mm - Swivel angle (B2 axis): 270° - Manual longitudinal adjustment of internal grinding axis on table: 780 mm - Drive power of internal grinding spindles (infinitely variable) Belt-driven grinding spindles: 7.5 kW - Mounting bore grinding block (diameter): 100 mm / 125 mm - Mounting length grinding block: 220 mm - Grinding diameter: max. 600 mm - Grinding depth: max. 800 mm External and surface grinding device (Z2/X2): - Travel (Z2 axis): 800 mm - Travel (X2 axis): 470 mm - Swivel angle (B2 axis): 270° - Drive power of external grinding spindles: 7.5 kW - Mounting bore of grinding block: Ø 140 mm - Grinding diameter: max. 800 mm - Grinding length max. 600 mm - Grinding wheel dimensions: max. Ø 450 x 50 x Ø 127 mm Equipment/accessories: - Various grinding spindles - Various flanges/grinding wheel holders - Various clamping jaws - Coolant system - Oil mist filter Ledpfx Akowp S Tneyjhf - Cooler - Technical documentation

Condition: used, Year of construction: 2001, grinding length 4200 mm grinding width 1300 mm workpiece height 550 mm Control Siemens 840D passage width 1300 mm electro-magnetic table 4200 x 1300 mm grinding height 550 mm Lhodjthumuopfx Akyef grinding motor 306 kW grinding motor turning speeds up to 370 U/min grinding motor feed, infinitely variable 0,5-35 m/min coolant flow rate 2000 l/min weight of the machine ca. 50 t dimensions of the machine ca. 11,21 x 5,25 x 3,85 m Equipment / Accessories: - segment head - diameter 1400 mm - for segment dimensions 120/106 x 41 x 250 mm - number of segments: 1 set = 26 pieces - grinding motor adjustment - in steps: 0,002 - 1 mm - continuous: up to 5 mm/min stepless

Condition: new, Year of construction: 2026, width of the strips 50.0 mm band length 940 mm band speed 3.0 - 22 m/min turning speeds 1450 U/min Ledpoxaaxqofx Akyshf tube diameter 16.0 - 114 mm radius 180 ° total power requirement 4.75 kW weight of the machine ca. 265 kg range L-W-H 1000 x 750 x 1300 mm Furnishing: - stationary pipe belt grinders - Automatic material feed with separate drive motor - Replacement sanding belts - Stepless speed adjustment - Manual adjustment of tube tension - Polish bent pipes up to 180" (angle). - Manual work possible without feed - CE mark / declaration of conformity

Condition: excellent (used), Year of construction: 1964, functionality: fully functional, machine/vehicle number: G 2109, The machine has only ever been used sporadically throughout its lifetime and has been extremely well maintained by one employee who has grown old with the machine – exceptionally good condition!!! Lodpfx Akeyfudmoyehf (Please submit your offer price) Sales only within Europe, including Turkey Price excludes packaging; Delivery terms: FCA (machine location) ===== For technical data, please refer to the handout. All warranty rights are excluded. We do not guarantee the accuracy of the technical data and year of manufacture, the completeness of accessories and tooling, or compliance with all safety and environmental protection requirements stipulated in accident prevention regulations. No sales to private individuals.

Condition: used, TECHNICAL DETAILS - Part diameter : 100 [mm] - Nominal module * gear hobbing : approx. 3.0 [mm] Ljdpfx Aksx Ed A Royohf * endless screw milling : approx. 5.0 [mm] - Max. axial movement : 320 [mm] - Cutting head orientation : -45 / + 115 [°] - Main mill max. diameter : 118 [mm] - Max. cut out length of the mail mill : 180 [mm] - Max. mill movement (Shifting) : 160 [mm] - Max. part-holder spindle speed : 3000 [t/mm] - Min./max. distance between axes : 10/100 [mm] - Cutting head motor power : 14 [kW] - Main mill speed : 50-12000 [t/mm] - Weight : 5000 [kg] EQUIPMENT - CNC Siemens 840D - Cooling tank - Chip conveyor

Condition: used, Centre height 125 mm Distance between centres 400 mm Max. longitudinal travel 440 mm Grinding wheel 400x50x127 mm Max. grinding diameter 250 mm Max. table load 80 kg Max. workpiece weight between centres 80 kg Grinding wheel speeds: number (steps) 3, 1500-1800 rpm Angular displacement +/- 45° Workpiece spindle head: - stepless speeds 30-675 rpm Lhodpfxjylcpks Akyjf - rotatable 90° Spindle taper 5 MT Tailstock taper 3 MT Table speed stepless 0.05-5.50 m/min External grinding wheel motor 3 kW Machine weight approx. 1500 kg

Condition: used, Year of construction: 1974, Surface Grinding Machine Elb SW9 VAI – Year of Manufacture 1974 – Used Ljdpev Ti Husfx Akyshf For sale is a used surface grinding machine from the renowned manufacturer Elb, model SW9 VAI, year of manufacture 1974. The machine impresses with its robust construction and is ideal for precision grinding of metal workpieces and surfaces. Technical data: Manufacturer: Elb Model: SW9 VAI Year of manufacture: 1974 Field of application: Precision grinding for metalworking Features: Solid construction – durable and reliable Precise grinding results – suitable for industrial applications

Condition: used, Guideway and surface grinding machine WMW FRITZ HECKERT Aschersleben type SZ 1000 x 1250 x 3000 / 344 make no. 13.2236.2 year of construction 1989 nominal grinding area 3000 x 1250 mm table clamping area 3240 x 1000 mm grinding length max. 3300 mm Machining width 1250 mm Machining height 1250 mm grinding wheel diameter (surface grinding support) max. 600 mm grinding wheel width (flat grinding support) max. 100 mm grinding wheel diameter (swivel support) max. 450 mm Mains connection 400 Volt, 50 Hz - grinding support swiveling, drive power 16,5 kW, infinitely variable speed - grinding support for surface grinding, drive power 15 kW, infinitely variable speed - new electrical control, based on SIEMENS S7 from year 2001 - new electric control cabinet beside, year of construction 2001 - infinitely variable grinding wheel speed at both grinding supports - swiveling wheelhead for guideway and profile grinding - swivel-mounted and height-adjustable control panel - coolant system adjacent - Hydraulic system adjacent - oil circulation lubrication adjacent - Various grinding wheels and holders space requirement complete L x W x H 11900 x 7700 x 4600 mm weight 45 ton. very good condition Lhedpfxohv A A Ds Akyef

Condition: good (used), Year of construction: 2001, functionality: fully functional, Technical details grinding length 4200 mm grinding width 1300 mm workpiece height 550 mm Lhedpfx Asy Avdqekysf Control SIEMENS 840 D magnetic clamping plate 4200 x 1300 mm segment head diameter 1400 mm grinding motor turning speeds up to 320 U/min. grinding motor 306 kW weight of the machine ca. 50,0 t Additional information Segment dimensions: 120/106 x 41 x 250 mm Number of segments: 1 set = 26 pieces Grinding motor feed: 0.5 - 35 m/min, infinitely variable Grinding motor feed: - in steps: 0.002 - 1 mm continuous: up to 5 mm/min. infinitely variable Equipment: * CNC-control SIEMENS Sinumerik 840 D * Automatic hydr. swivelling of the grinding motor from hollow to cross grinding * NC-controlled adjustment of the Marposs measuring head by means of precision support. - new grinding dimensions can be entered into the control, whereby the the grinding head automatically adjusts to the corresponding height. * Dresser with adjustment axis in the machine bed * Coolant system * Electro-magnetic table * Switch cabinet * Oil mist extraction * Documentation Dimensions (length x width x height) Bed: 11800x2200x1400 mm, weight 27500 kg Grinding head: 3000 x 2500 x 3100 mm, estimated weight 14 t 2 x Oil mist extraction: 1200 x 800 x 2000 mm each Control panel: 1200 x 800 x 400 mm Small control cabinet: 1400 x 1400 x 800 mm 2 x gears each 1200 x 800 x 500 mm Control cabinet: 1600 x 800 x 2000 mm Control cabinet: 3400 x 600 x 2400 mm

Condition: excellent (used), Year of construction: 2019, functionality: fully functional, Technical details grinding length 600 mm grinding width 400 mm workpiece height 400 mm weight of the machine ca. 4,5 t dimensions of the machine ca. 3592 x 3519 x 2203 mm Additional information Horizontal surface grinder in almost new condition Operating hours: CNC on: 1198 hours Machine on: 1117 hours Automatic operation: 509 hours Ledpfsy Avbijx Akyshf Grinding operation: 228 hours Okamoto Touch Screen Control Travel X-axis: 600 mm Travel Y-axis: 22.5 – 497 mm Travel Z-axis: 400 mm Speed range rpm: 1-2800 (stepless) Rapid traverse mm/min: 4000 Main drive kW: 7.5 Maximum table load in kg: 1000 Accessories: - Electro-permanent magnetic clamping plate: 400 x 600 P13 mm, height 80 mm (make Wagner) - 2 grinding wheel flanges - Table dresser - Automatic straight dresser, spindle box mounted - Automatic compensation of the wheel dressing amount - Automatic central lubrication - Ball screw in the Y and Z axes with AC servo motor and measuring system - Coolant system with belt filter system

Condition: good (used), Year of construction: 1995, functionality: fully functional, Technical details internal diameter 800 mm grinding depth 500 mm swing diameter 850 mm weight of the machine ca. 6,4 t Additional information Used internal cylindrical grinding machine with face grinding device in special design with enlarged swing diameter and extended, hydraulic transverse movement Reconstructed and modernized 1995 in the Glauchau manufacturer’s plant, put into operation 1996 1. TECHNICAL DATA 1.1 Working area Grinding diameter in the workpiece guard internal grinding, min./max. mm 30/630(800) External grinding, max. mm 800 Grinding depth, up to approx. mm 500 Table stroke mm 800 Workpiece diameter, max. mm 800 Swing diameter in workpiece protection, max. mm 800 Without workpiece protection, approx. mm 850 Distance from workpiece spindle head to grinding spindle carrier, max. mm 1225 Adjustment of the internal grinding device on the table, max. mm 545 1.2 Workpiece headstock Cross shift, max. mm 650 Cross adjustment via gear motor and positioning device with HEIDENHAIN digital position display Swivel, max. degrees 15 Workpiece spindle Speeds rpm 16/22/32/ 45/63/90/ 125/18/250 Load capacity, max 1000 Spindle head (with bayonet flange) DIN 55021 size 11 Machine accessories: 2-axis digital displays made by HEIDENHAIN Coolant system with magnetic separator Fixators (machine shoes) Various grinding wheels Diamond dresser Large face plate Lodey Au R Ajpfx Akyjhf Internal and face grinding device Halogen machine lamp Machine documentation

Condition: new, Year of construction: 2026, Universal grinding machine for metal. Contains two belt speeds, 9.5/19 m/s. Features sturdy, reliable design and convenient handling. 100×1220 mm grinding belt. Machine features Universal belt grinding machine for rough grinding, edge grinding, etc. Suitable for various materials. By default equipped with an intake connector for extraction. Simple and convenient handling, at the same time quiet and sturdy during operation. Well-balanced rollers ensure vibration-free work Ljdpfxsvvk Hho Akyehf Significant time saving while deburring Enclosed on/off switch, compliant with the IP54 rating with an undervoltage trip release Powerful, failure-free motor Quick and simple belt replacement Large grinding surface, adjustable limiters – universal purposes Solid, vibration-free design Technical data Voltage 400V, 50 Hz Grinding belt dimensions (D×S) 1220×100 mm Belt speeds 9.5/19 [m/sec] Motor power 1.5 kW Weight 44 kg Dimensions 630×410×355 mm

Condition: new, Year of construction: 2026, functionality: fully functional, Grinding Wheel Dressing Machine: Easy to Operate, Robust, and Precise Our grinding wheel dressing machine with enclosure offers you an unbeatable combination of easy operation and exceptional stability. The solid granite bed ensures the highest precision and durability, while the user-friendly operation maximizes efficiency in your workshop. While you continue production on your tool grinding machine, our dressing machine saves you time and, therefore, money. Ideal for those who value reliable performance and top value for money! Ljdpeubbrtsfx Akyshf

Condition: used, centre height 200 mm dist. between centers 1.000 mm grinding length 1.000 mm max. workpiece diameter 360 mm grinding wheel width 127 mm spindle tunring speed 1.500 U/min Lhodpfjy Ay N Dsx Akysf turning speed range - workpiece spindle 15 - 320 U/min dimensions 2,80 x 1,50 x 1,70 m In our assessment, the machine is in good used condition and can be inspected under power by appointment. The machine has been overhauled and fitted with a new spindle. Accessories, tools, and clamping devices shown in the images are only included if explicitly stated in the additional information. Technical data and specifications are subject to change without notice. Prior sale is reserved.

Condition: used, Year of construction: 1997, Catalogue number 7724 TECHNICAL DATA - number of working spindles: 6 pcs - spindles pressed pneumatically onto the material - milling units adjustable up/down, right/left, and at angles - 6 pneumatic clamps - stepless feed speed adjustment Lhsdpfx Akoya Hl Ejyjf - max milling height: 130mm - max milling length: 2500mm - max milling width: 330mm - shaft diameter: 40mm Motor power: - milling units 1-2: 2 × 5.5kW - milling units 3-4: 2 × 4.5kW - milling units 5-6 universal (sanding or milling): 2 × 4.5kW - extraction nozzle diameter: 10x152mm - air supply requirement: 6-8 bar - dimensions (L/W/H): 8000x3000x2420mm - weight: approx. 6000kg ADVANTAGES – Italian manufacture – For through-feed processing of curved elements according to template – 6 milling units – Not repainted – Safety guards – Original DTR + CE documentation – Used machine in very good condition Net price: 46,900 PLN Net price: 11,160 EUR (based on 4.2 EUR exchange rate) (Prices may change depending on exchange rate fluctuations)

Condition: good (used), Year of construction: 2012, machine/vehicle number: 22002549, Offer 26118 Technical Specifications: Ljdpjy Dfqiefx Akyjhf - Possible working range with options: 0.3 - 30 mm - Max. disc diameter: 164 mm - Point angle steplessly adjustable: 118 - 150° - Surface speed at the disc: 29 m/s - Rotational speed: 2800 rpm - Drive: 230 V / 0.2 kW - Required space approx.: W 450 x H 300 x D 450 mm - Weight approx.: 30 kg - Clamping range: 3.0 - 12 mm - Clamping range: 12 - 21 mm - Grinding attachment for 3-flute countersinks - Cross table

Condition: new, Year of construction: 2026, functionality: fully functional, Performance Data: Diamond Grinding Spindle: HSK-50 or customer-specific (e.g., SK-40, Perfect Arbor, etc.) Max. Dressing Wheel Diameter: ø300 mm Max. Dressing Wheel Width: 20 mm Max. Grinding Wheel Diameter: up to ø250 mm Grinding Wheel Speed: 0–1,500 rpm (infinitely variable) Travel Range (Left/Right): 135 mm Travel Range (Forward/Back): 135 mm Dressing Wheel Diameter (Silicon Carbide): ø180 x 10 x ø32 mm Swivel Range: approx. 98 degrees on both sides Dressing Wheel Speed: 0–2,800 rpm (infinitely variable) Dressing Wheel Oscillation Frequency: 0–50 strokes/min (infinitely variable) Dressing Wheel Oscillation Length: 0–50 mm (adjustable) Ljdpfxoha Eh Hs Akyohf X, Y Axis Optical Scale Resolution: 0.001 mm Capabilities: Dressing of radii and wheel stacks (multi-wheel packs) Power Supply: 380V, 50Hz; Total Power: approx. 1.5 kW DXF Import: Included Camera System: Included (with live transmission via 23" monitor) Software: Latest generation GWDress-Studio with automatic AI measurement included Country of Origin: Austria

Condition: used, Year of construction: 1999, functionality: limited functionality, CNC Cylindrical Grinding Machine for Sale – STUDER S40 (1999) We offer for sale a STUDER S40 cylindrical grinding machine, year of manufacture 1999. The machine is in working condition. It is equipped with one grinding spindle and a turret wheelhead suitable for both external and internal grinding operations, making it a versatile solution for precision machining. Control system: FANUC 16 Key Features: External and internal grinding capability Turret wheelhead Reliable FANUC 16 control system Solid and proven STUDER build quality Operator manual. Delivery Terms: EXW (Ex Works) Ljdoy Elz Depfx Akyjhf The machine is available for inspection upon request. For more information, photos, or pricing, please get in touch.

Condition: good (used), Year of construction: 1985, functionality: fully functional, grinding length: 1,000 mm, grinding width: 600 mm, total height: 2,200 mm, total length: 3,260 mm, total width: 4,410 mm, feed length X-axis: 1,150 mm, feed length Y-axis: 600 mm, feed rate X-axis: 25 m/min, feed rate Y-axis: 6 m/min, grinding wheel diameter: 400 mm, distance table to spindle center: 600 mm, table speed: 25 mm/min, table length: 1,200 mm, table width: 550 mm, grinding wheel width: 76 mm, spindle speed (max.): 1,400 rpm, spindle speed (min.): 1,400 rpm, overall weight: 6,000 kg, table height: 1,050 mm, grinding spindle motor power: 8,948 W, rapid traverse X-axis: 1 m/min, travel distance X-axis: 1,150 mm, travel distance Y-axis: 600 mm, grinding spindle speed: 1,400 rpm, input voltage: 380 V, space requirement height: 2,200 mm, space requirement length: 3,260 mm, space requirement width: 4,410 mm, Equipment: rotational speed infinitely variable, We offer this used MICROSTATIC RT 100/60 surface grinding machine– Heavy Duty Precision Machine – Massive Cast Construction , year of construction 1985. Model: RT.100.65 Serial number: 728 Rated voltage: 380 V Rated frequency: 50 Hz Year of manufacture: 1985 The machine was operated in a production facility until November 2025. After production was stopped, the machine was taken out of operation and is currently stored in a warehouse. The machine was regularly serviced, operated in accordance with its intended purpose and maintained in good technical condition. It was used sporadically as a backup machine for the maintenance department in a large industrial production plant. The machine is complete and ready for recommissioning after standard service and inspection. Technical Data Model: T 100/60 Type: Surface grinding machine Working Ranges Max. longitudinal travel (X): 1150 mm Max. cross travel (Y, standard): 600 mm (optional up to 650 mm) Max. grinding length (standard): 1000 mm Max. grinding width (standard): 600 mm (optional up to 650 mm) Table Working surface: 1200 × 550 mm Distance table to spindle centerline (standard): 600 mm (optional 700 mm) Table height over floor: 1050 mm Feeds & Movements Longitudinal feed (infinitely variable): 1 – 25 m/min Cross feed (infinitely variable): 0 – 6 m/min Intermittent cross stroke: 1 – 20 mm Rapid traverse: 1000 mm/min Automatic increment at reversal: 0.0025 – 0.02 mm Grinding Unit Grinding wheel dimensions: 400 × 76 × 127 mm Spindle speed (50 Hz): 1400 rpm Motors Main grinding motor: 12 HP Hydraulic power unit motor: 5.5 HP Rapid traverse motor: 1 HP Coolant pump motor: 0.30 HP Weights Net weight: approx. 6000 kg Gross weight (sea-worthy packing): approx. 6900 kg Overall Dimensions (according to drawing) Length (A): 3260 mm Width (B): 4410 mm Height (C): 2200 mm Lhjdpfxjyfgqxs Akysf Base depth (D): 2600 mm If you have any questions or need more information, feel free to send us a message or give us a call.

Condition: not inspected (used), functionality: unexamined, Two machines are being sold as a package for spare parts. Centerless grinding machines ----- 1* Manufacturer: NOMOCO, Type: M100 E Machine no.: 5069 Year: 1977 Max. grinding diameter: 100 mm Max. grinding length: 180 mm Grinding wheels: Ø 400 mm Max. wheel width: 180 mm Weight: 3,200 kg ----- Manufacturer: NOMOCO, Type: M100 Machine no.: 2338 Year: 1974 Machine is equipped with a stack magazine, feed through a pusher. Machine is set up for plunge grinding. Conversion to through-feed grinding possible. ----- Lhodeyc N D Nepfx Akyof * The concentricity testing device is not included in the scope of delivery. The machine has been disconnected from the power supply, i.e., it cannot be demonstrated under power. Removal and loading are at the buyer’s expense. For prices, please refer to the "Documents" section, or send an inquiry by email. A forklift for loading is not available, but can be arranged if required.

Condition: good (used), internal diameter 200 mm grinding depth 80 mm stroke of the table X= 300 mm stroke of the table Y= 500 mm control FANUC 18i-TA total power requirement 7 kW Lhodpfoy Dvnrox Akysf weight of the machine ca. 2,5 t dimensions of the machine ca. 2,950x2,330x1,640 m O K A M O T O High-Precision Internal Cylindrical Grinding Machine with FANUC CNC Control, System 21 i – TA, 2-Axis Simultaneous Machining For machining bores, end faces, and outer diameters in a single setup TECHNICAL DATA Internal grinding diameter: (6) - 100 mm Grinding depth approx.: 80 mm Max. table stroke: X-axis 300 mm Z-axis 500 mm Swing diameter over table: 600 mm Swing diameter in chuck cover: 260 mm Table speed: (X/Z-axis) 0.1 - 10,000 mm/min Swivel angle of workpiece spindle: -5 to +15 degrees Smallest input increment: X-axis 0.0001 mm Z-axis 0.0001 mm Workpiece spindle speed: 100 - 850 rpm Grinding spindle speeds: Standard (infinitely variable) up to 10,000 rpm and 20,000 rpm

Condition: used, Year of construction: 2004, 10 spindle system. Connected load: 380/400V/50Hz, 34 kW. Lhedpswynzcjfx Akyof Glass thickness: 3-60 mm.

Condition: used, grinding diameter 630 mm grinding length 3000 mm 2500 kg grinding wheel: grinding stand diameter x wid 750x100x305 mm grinding head swivellable +/- +30, -10 ° 840,970 1/min 1 mm Ledpsy A S U Eofx Akyohf 3450 mm table speed -stepless- 0.05-3.6 m/min table swivelabel +/- +/- 5 ° Rotation speed of the work piece spindle area 1 8 - 50 Rotation speed of the work piece spindle area 2 50 - 315 1/min workpiece-spindle swiveling 90 ° Motor of the grinding spindle head 15 kW total power requirement 31 kVA weight of the machine ca. 15 t Equipment/Accessories: -4 flanges -Balancing stand -Various tips -Various spare parts -Paper belt filter -Technical documentation

Condition: ready for operation (used), feed length X-axis: 920 mm, feed length Y-axis: 400 mm, Surface Grinder HIDROPRECIS - Table: 800 x 450 mm - Y-axis travel: 920 mm - X-axis travel: 400 mm - Maximum grinding height: 500 mm Lodpfsyz Infox Akyjhf - Wheel motor power: 7.5 hp - Grinding wheel: 350 x 127 x 100(50) - Coolant filter - Dimensions: 3,500 x 2,500 x 2,300 mm - Weight: 3,500 kg