Used Backtechnik Conical Rounding Machine for sale (74,600)

Condition: refurbished (used), WP CR59 conical rounder is suitable for many common dough types, such as wheat, wheat/rye, multigrain and whole wheat doughs. The dough pieces are being taken over by the rotating cone and shaped into round dough pieces by the specially shaped tracks. Because the tracks are mechanically processed, there is a very high precision between tracks and cone, which results in a minimum of dough crumbs. hot air, heating weight range 400-1800 gr. max cap. 5000 pcs/h cast iron cylinder/cone, teflonized Nedpozh H Izofx Ai Town aluminium tracks, in- and outside teflonized cone with top bearing frame steel, nickel coated cover plates stainless steel, brushed undercarriage nickel steel with 4 castors, dowel pins and blocking operation control panel

Condition: good (used), Wohlenberg 115 TS Paper Cutting Machine Machine in very good condition, ready for production. Year of manufacture: 2008. Available immediately from stock. The guillotine can be used as a standalone unit or integrated with cutting systems. Program generation is menu-driven and includes a variety of cutting tasks, such as single cut, programming, multiple cuts, non-cutting hold-down, and automatic actual value transfer. Wohlenberg premium cutting machines are manufactured in Solms, Germany. Distinguishing Features of the Wohlenberg Machine: – Interactive User Interface – 18.4” Touchscreen – USB Interface – Ethernet Interface – Windows CE Operating System – Positioning via Electronic Handwheel – Optimized Cutting Cycle – Programmable Hold-Down Pressure – Automatic Adjustment of Hold-Down Pressure to Cutting Width – Automated Front-Mounted Knife Change – Quick Knife Change – New Machine Body Cast in One Piece = Increased Stability – Maintenance-Free Electromagnetic Clutch Technical Data: Cutting Length: 1150 mm Maximum Stack Height: 165 mm Infeed Depth: 1150 mm Minimum Cutting Capacity with Sheet Metal Under Pressure Beam: 77 mm Minimum Cutting Capacity Without Sheet Metal Under Pressure Beam: 20 mm Maximum Saddle Feed Speed: 300 mm/s Maximum Mechanical Efficiency Knife speed: 44 cycles/min Saddle movement: above the work table Main motor power: 4 kW Net weight: 3200 kg Nsdpfxo Af E E Rs Ai Tjwn The machine is equipped with a spare knife, cutting sticks, a pressure plate, documentation, and tools.

Condition: used, Zwick / Roell Type: Z020 Allround-Line BT1-FR020TN.A50 Zwick / Roell Material Testing Machine, 20 kN, Tensile & Compression Testing, testXpert III For sale is a high-quality Zwick / Roell material testing machine for professional tensile and compression testing of materials and components. The machine is suitable for metals, plastics, rubber, and many other materials and is typically used in laboratories, quality assurance, research, and education. The machine is controlled via a PC with Zwick/Roell testXpert III software (storage medium and documentation available). Technical Data: Nominal testing force: 20 kN Testing direction: Tensile & Compression Power connection: 230 V / 50–60 Hz / 1-phase Power consumption: approx. 2.1 kVA Nwjdpszimgtjfx Ai Ten Weight: approx. 150–180 kg Dimensions: approx. 856 × 650 × 1,545–2,114 mm Technical Data (from documents & nameplate) Mechanics / Testing Nominal force: 20 kN Testing direction: Tensile & Compression Max. testing frequency: 0.5 Hz Crosshead: servo-electric Positioning accuracy: < 1 µm Speed range: 0.0005 – 1,000 mm/min Dimensions & Weight Overall height: approx. 1,545 – 2,114 mm (depending on the crosshead position) Overall width: approx. 856 mm Overall depth: approx. 650 mm Working space width: 440 mm Weight: approx. 150 kg (basic unit) approx. 180 kg with typical equipment Electrical Data Power connection: 230 V AC Phases: 1-phase (1PH, N, PE) Mains frequency: 50 / 60 Hz Current consumption: approx. 8–10 A Power consumption: approx. 2.1 kVA Socket: Schuko (CEE 7) Measuring & Control Electronics Internal measurement value acquisition: 500 Hz Data transmission to PC: 10–100 Hz adjustable Interface: RS232 (COM) Protection class for electronics housing: IP32 Important note: “The table shown in the photos is not included in the sale.” Condition: used Scope of supply: (See picture) Zwick / Roell material testing machine (20 kN) Electronics unit PC workstation (monitor, PC condition see pictures) 2 measuring modules (Delock units) Zwick/Roell testXpert III software (storage medium) Original operating and technical documentation Various connection and linking cables (Changes and errors in the technical data are subject to change!) We will gladly answer any further questions you may have by phone.

Condition: used, Zwick / Roell Material Testing Machine / Universal Testing Machine Zwick / Roell Z020 Allround-Line BT2-FR020TNW.A50 20 kN material testing machine for tensile and compression testing with testControl II & testXpert V3.5 For sale is a used material testing machine from the manufacturer Zwick / Roell. The machine is suitable for tensile and compression tests on metals, plastics, elastomers, composite materials, and numerous other materials in the laboratory, quality assurance, research and development. Technical data: Manufacturer: Zwick / Roell Model series: Z020 Allround-Line Type: BT2-FR020TNW.A50 Testing force: 20 kN Testing direction: Tensile & Compression Testing space height: 1000 mm Crosshead speed: 0.0005–1000 mm/min Power connection: 230 V / 50–60 Hz Power consumption: 8 A Electronics: testControl II Software: Zwick / Roell testXpert V3.5 Equipment: Servo-electric material testing machine testControl II control system Industrial PC with installed testXpert V3.5 software 20 kN Xforce P load cell 2.5 kN Xforce P load cell Testing table Test fixture Various connection and cable sets Accessories as shown in the pictures Dimensions and weight: Machine dimensions (approx.): 1244 × 690 × 1324 mm (W × D × H) Weight: approx. 212 kg Application areas: Tensile testing Compression testing Material testing Quality assurance Research & Development Testing laboratory Education and training Scope of supply: 1 × Zwick / Roell Z020 Allround-Line material testing machine testControl II control system Industrial PC with installed testXpert V3.5 software 20 kN Xforce P load cell 2.5 kN Xforce P load cell Connection and cable sets Further accessories as shown in the pictures Condition: Used Visual condition as shown in the pictures Functional scope as shown in the pictures Nameplates are present The table, monitor, keyboard, and mouse shown in the photos, as well as any other items not explicitly mentioned, are not part of the sale. Shipping or freight forwarding possible. Subject to change, errors and prior sale. We will be happy to answer any further questions by telephone. Nsdpfxozra Rqs Ai Tjwn

Condition: used, Year of construction: 2026, Rotary molder Panemor PCR-STD Year of manufacture: 2026 Condition: new Output rate: max. 2400 pieces per hour Weight range: 100-600 g Dough feed height: 770 mm Dough discharge height: 950 mm Air blower Integrated Mehler system Nwedpfx Ajz A Sp Roi Tsn

Condition: new, Year of construction: 2025, Dimensions (L/W/H) 1760x1150x1320 mm Weight 1100 kg Nodpfxov A Hyks Ai Tjwn Total power requirement 4,5 kw

Year of construction: 1989, condition: excellent (used), control Siemens 840D solution line Grinding length outside max. 400mm Inner grinding length 200mm Nsdpfx Aiefwx A Se Tewn Grinding wheel diameter: max. 400mm Grinding wheel width: max. 63mm Outside grinding diameter 150mm Inner grinding diameter 200mm Tailstock travel: 400mm General overhauled in 2016 !

Condition: new, Fastech 3-Roll Round Bending Machine FRM 1250 x 90 Technical Specifications: Special equipment included in the price: hardened rollers motorized rear roller adjustment digital display Sheet metal width 1250 mm Sheet metal thickness 3.0 mm max. Sheet metal thickness 2.5 mm for pre-bending Roller length 1250 mm Roller diameter 90 mm Smallest bending diameter 130 mm Weight 500 kg Dimensions L-W-H 1950 x 900 x 1130 mm Motor: 1.1 kW Equipment: Top and bottom rollers, electrically driven Top roller can be swung out Taper bending device asymmetrical roller arrangement self-braking main motor separate control and operating panel safety cable Values apply to St-37 / 240 N/mm² CE marking Nsdpehzq Dqofx Ai Town

Condition: like new (used), functionality: fully functional, Year of construction: 2025, machine/vehicle number: M3022, control type: manual, degree of automation: manual, actuation type: hydraulic, controller manufacturer: Delsy, controller model: Digital readout, number of rollers: 4, roller (bottom) diameter: 330 mm, roller (top) diameter: 350 mm, side roll diameter: 260 mm, roller diameter: 400 mm, roller length: 3,000 mm, working width: 3,100 mm, working height: 900 mm, sheet thickness (max.): 22 mm, sheet thickness steel (max.): 22 mm, sheet thickness stainless steel (max.): 22 mm, sheet thickness aluminum (max.): 30 mm, overall weight: 13,000 kg, power: 10 kW (13.60 HP), input voltage: 400 V, input frequency: 50 Hz, number of digital displays: 4, warranty duration: 12 months, Equipment: cone bending device, documentation/manual, hardened rollers, swiveling upper roller, Bending capacity with dual Initial pinch planetary plate width 3000 mm Nedpfx Asid Al Nei Tewn thickness 22 mm pre-bend 18 mm --- Length on the rolls 3100 mm top roll 350 mm lower roll 330 mm Power electric 20Hp Vac 400/50 Installed configuration Hardened surface of the 4 rolls Driven central rolls rotation hydraulic motorized with gear units Synchronized hydraulic rotation between the rolls Rolls parallelism lifetime set with torsion bar Conical plate bend hydraulic attachment Calibration re-rolling feature for welded shells Front open drop-end to unload the closed rolled plates. Control console electric commands with digital readout Safety and emergency systems installed Manuals and schematics originals

Condition: used, Zwick / Roell Universal testing machine / Material testing machine Zwick / Roell Z005 5 kN Allround table-top Complete material testing system with testXpert II and extensive accessories For sale is a used universal testing machine from the manufacturer Zwick / Roell. The testing system is suitable for tensile, compression and material tests, as well as for component, plastic, metal and parts testing. Technical data: Manufacturer: Zwick / Roell Type: Z005 / 5 kN Allround table-top Testing system type: S0101 Max. testing force: 5 kN Crosshead speed: 0.0005 – 3,000 mm/min Return speed: max. 3,000 mm/min Testing width: 640 mm Testing height without attachments: approx. 1,400 mm Dimensions of the testing system with stand profiles and machine electronics (W x D x H): approx. 1,244 x 690 x 1,878 mm Weight with typical attachments: approx. 291 kg Power connection: 230 V / 50–60 Hz Connection: 1L / PE / N Equipment: Zwick / Roell Z005 5 kN testing machine Zwick / Roell machine electronics Handheld control unit with emergency stop Zwick / Roell testXpert II testing software PC system with monitor, keyboard and mouse Load cell and measuring components SAIM cross / positioning table Specimen holders and clamping tools Clamping plate Nwjdpsz Iy Tzjfx Ai Ton Connection and measuring cables Original operating manuals Software / documentation Further extensive accessories as shown in the pictures Application areas: Tensile testing Compression testing Material testing Component testing Plastic and metal testing Parts testing Automotive testing Quality assurance Research and development Scope of delivery: 1 × Zwick / Roell Z005 5 kN Allround table-top Machine electronics and handheld control unit PC workstation with testXpert II Testing and clamping tools Load cell / sensors SAIM positioning table Documentation and accessories as shown in the pictures Condition: Used Optical condition as shown in the pictures Signs of wear and tear due to age and use The table shown in the photos and other items not explicitly mentioned are not part of the sale. Shipping or freight transport is possible. Subject to changes, errors and prior sale. We will be happy to answer any further questions by telephone.

Condition: used, machine/vehicle number: 4344, Buchdeckenrundemaschine - Case Rounding Machine Hunkeler BDR 40 (4344/1)Serial-No. 4344/1 Output 250 - 300 pcs/h Nwjdeh Axcropfx Ai Tsn Size range Spine width 10 - 120mm Spine length up to 450mm Online-Video-Inspection by Skype-Video We would be very pleased with your visit - more machines on Stock Available Immediately - Can be inspect On Stock Emskirchen / Nürnberg - Can be test

Condition: used, Year of construction: 1978, machine/vehicle number: 186, Buchrückenrundemaschine - Book Back Rounding Machine Hunkeler BRM50Year 1978 - Serial-No. 4314-9 Working width max. 500mm Nodpfx Aioh Axb Re Tswn Thickness of books 0 - 100mm Output 400 - 600 Blocks/hour Online-Video-Inspection by Skype-Video We would be very pleased with your visit - more machines on Stock Available Immediately - Can be inspect On Stock Emskirchen / Nürnberg - Can be test

Condition: good (used), Year of construction: 2016, Traverses X Y Z: 710 x 450 x 510mm, Table size 760mm x 430mm, table load 500 kgs, spindle speed 8000rpm, spindle motor power 20Hp, Siemens 828D Control with Shopmill, rapid feed XYZ axis 20m/min, Spindle taper BT40, Nwodsz R Rbdjpfx Ai Tsn 24 station ATC.

Condition: new, Year of construction: 2024, Panel thickness (min/max) 5/50 mm Cutterhead rotation speed 30000 rpm Motor power 0,8 kW Table dimensions 320x440mm Milling axis Ø 6 mm Sufficient and constant compressed air Ø 6 mm Nsdpfxoq Ivmus Ai Tjwn Power 220 V/50Hz Transport dimensions 720x500x470 mm Weight 25 kg Price 299 Eur (EXW Jonava, Lithuania)

Condition: new, Year of construction: 2026, Kudu automatic drilling machine with NC control and manual tool change (3-axis) automatic drilling machine with a mobile processing unit - the table remains stationary, the drilling head moves. The drilling machine can be used both manually and fully automatically. After each drilling process, the processing unit moves to the next drilling position fully automatically in the X and Y axes. Operation is kept very simple. The system is programmed directly on the machine control. The system is very robust and consists of proven machine components. Technical data: • Measuring length: 6,000 mm • Total length: 8,000 mm • Stable machine base • Drilling head speed: up to 2800 rpm • Tool holder: HSK 50 • Drive of the X, Y and Z axis via servomotors • Rapid traverse in the X Axis: 18 m/min • Rapid traverse in the Y-axis: 5 m/min • Distance between the top edge of the table and the bottom edge of the tool holder 245 mm • Table width 450 mm • Working height: 1005 mm • Drilling diameter: 3 to 15 mm in St. 50 (depending on the tool) • Machining path in the Y-axis: 230 mm • Tolerance in the X-axis: +- 0.1 mm/m • Tolerance in the Y-axis: +- 0.05 mm • Tolerance in the Z-axis: +- 0, 05 mm • System weight: 2000 kg • System dimensions: 8000 mm x 2000 mm x 2388 mm (see layout plan) • Power connection: 32 A • Air connection: 8 bar • Protection of the system at the front via light barrier • Access protection at the rear, machine fence • Simple programming of the machine • Cooling takes place by means of a minimum quantity spray system • Without material clamping vices • Digital hand wheel Your advantages • The surface of the workpieces is protected • Clear, graphic surface • Machining directly at the end of the workpiece is not difficult • 50% space saving compared to pushing machining • Chips are collected in the chip tray • Simplest programming and operation It is always possible for you to inspect the desired system in our production/demonstration hall. Please do not hesitate to contact us. Nodpfx Aisfu Iwmo Tjwn

Condition: used, total length: 4,700 mm, total width: 1,200 mm, total height: 1,400 mm, Year of manufacture: 1991 Colour: Green Empty weight: 7.500 kg Price: On request - Year: 1991 - Documentation available: No - CE certificate present: No - Serial number: 914931 - Drive system: Conventional - Drive: Hydraulic - Number of rolls [pcs.]: 3 - Number of driven rolls [pcs]: 3 - Power [kW]: 5.5 - Max. sheet thickness [mm]: 14 - Max. prebending thickness [mm]: 6 - Max. working width [mm]: 3000 - Top roll diameter [mm]: 255 - Bottom roll diameter [mm]: 255 - Options: Cone rolling - Transport dimensions: 4700mm x 1200mm x 1400mm (l x w x h) - Transport weight [kg]: 7500kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Nwedpoz Euawjfx Ai Ten Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Condition: used, Dough rolling and shaping machine, combination rolling machine, rolling machine -Roll width: approx. 600 mm -Rolling thickness: from 0.3 - 30 mm -with round and long wire type: SR0 -flour container -16 A-CEE plug -Connection: 380 V, 0.75 kW -The rolling machine is mobile -Dimensions: 1900/1250/H1900 mm Nwodpfx Aijb A Icie Tsn -Weight: 430 kg

Condition: new, Ostas 3-Roll Round Bending Machine ORM 1070 x 110 Technical Specifications: Special equipment included in the price: hardened rollers motorized rear roller adjustment digital display Sheet metal width 1070 mm Sheet metal thickness 5.0 mm max. Sheet metal thickness for pre-bending 4.0 mm Roller length 1070 mm Roller diameter 110 mm Weight 1000 kg Dimensions L-W-H 2250 x 800 x 1100 mm Motor: 2.2 KW Equipment: Top and bottom rollers, electrically driven Top roller can be pivoted outwards Tapered bending device asymmetrical roller arrangement self-braking main motor separate control and operating panel Nwsdpfxjgkwhaj Ai Ton safety cable CE marking

Condition: new, Year of construction: 2025, Dimensions (L/W/H) 2650x1400x1700 mm Weight 1950 kg Njdpfxevz Euws Ai Tewn total power requirement 11,4 kw

Condition: excellent (used), Year of construction: 2013, functionality: fully functional, HANDTMANN GMD 99-2 | Ground meat portioning machine / Portioning dispenser Manufacturer: Albert Handtmann Maschinenfabrik GmbH & Co. KG Model / Type: GMD 99-2 (Type 99-2) Serial number: 33486 Year of manufacture: 2013 Nwjdez Ek Tgepfx Ai Tjn Belt / knife width: 220 mm / 220 mm Working clearance: 250 x 100 mm Overall dimensions: 1390 x 700 x 1230 mm The Handtmann GMD 99-2, a professional ground meat portioning machine (Ground Meat Divider), is an industrial device designed for the precise division of a continuously formed product stream into consistent portions. The machine works directly with Handtmann VF 600 series vacuum fillers (and GD grinding attachments), creating an automatic and efficient portioning system. The machine is used in meat processing plants, butcher shops, and catering and delicatessen facilities that focus on the production of packaged ground meat, cevapcici, burgers, roasts, or vegetable-based products. Thanks to its 220 mm wide knife and precise pneumatic or mechanical cutting system, the machine guarantees high throughput and perfect aesthetics for the finished portion before it is placed on a tray or packaged in a flow wrapper.

Condition: good (used), Year of construction: 1999, operating hours: 95,239 h, functionality: fully functional, machine/vehicle number: 173937, clamping force: 2,000 kN, screw diameter: 55 mm, clearance between the columns: 520 mm, mold height (min.): 250 mm, total length: 5,100 mm, total width: 1,800 mm, total height: 2,200 mm, overall weight: 6,630 kg, Equipment: documentation/manual, The machine ran perfectly until the last day before the new machine was delivered to us. The machine is therefore in good used condition. Due to a lack of space in the injection molding shop, the machine is being sold and is no longer powered. The pump / injection unit / clamping unit are sealed. The machine manual is available Videos of the machine are available Nwedpfjv D Nxlex Ai Tjn Pump operating hours: 95239 Automatic operating hours: 86082 Repairs from recent years: Filter replaced annually 05/2024 Fan in the control cabinet replaced 07/2023 New valve for Y201 and Y210 nozzle forward/backward 02/2023 New keypad installed. Field with motor and heater 12/2022 Ejector sealed. Injection unit sealed including new piston

Condition: used, Year of construction: 2021, machine/vehicle number: DW2110130101, functionality: fully functional, power: 32 kW (43.51 HP), input voltage: 380 V, input current: 85 A, type of input current: three-phase, workpiece length (max.): 3,000 mm, workpiece width (max.): 2,000 mm, workpiece height (max.): 30 mm, number of axes: 4, number of slots in tool magazine: 10, total height: 2,400 mm, total length: 4,300 mm, total width: 2,250 mm, overall weight: 2,000 kg, table length: 3,000 mm, table width: 2,000 mm, year of last overhaul: 2025, Equipment: CE marking, We offer this used Apollo 4AX 2030 CNC Router, year of manufacture 2021. Manufacturer: Apollo Model: 4AX 2030 Year of manufacture: 2021 Condition: used Nsdpfx Aiez Iz Imj Tswn Machine type: CNC Router If you have any questions or need more information, feel free to send us a message or give us a call.

Condition: new, Year of construction: 2025, number of rollers: 3, roller (bottom) diameter: 130 mm, roller (top) diameter: 130 mm, side roll diameter: 130 mm, roller length: 1,070 mm, sheet thickness steel (max.): 5 mm, Equipment: cone bending device, documentation/manual, emergency stop, foot remote control, hardened rollers, swiveling upper roller, - Capacity: 1070 x 5 - Electrically adjustable idler roller - Digital display for rear roller movement - Hardened rollers - Conical rollers - Rotatable top roller - Brake motor - Foot control - Emergency stop - Documentation - 400V Nodpfx Ajirwlasi Tjwn

Condition: new, Year of construction: 2026, SEMI-AUTOMATIC DRILLING RIG “UNIBORFIX 50” With the UniBohrFix 50 drilling system, all profiles can be machined against a stop or with grippers. The Drilling is done manually using the lever, with the materials on the X-axis automatically pointing to the drive to the next drilling position. Easily drill entire programs or work with the stop plate quickly carry out individual drillings. The system is suitable for weights up to 100 kg. The facility also contains a minimum quantity spray unit with holder and spray can. The technical data of the standard version can be found in the table. If necessary, all components of the system can be adapted to your requirements. You can choose between different drilling machines, roller conveyors, select positioning systems and vices. Plantec configures the system so that it suits you perfectly! Nwjdpfxogwt Slo Ai Tjn ADVANTAGES A sequence of holes is automatically executed at precise intervals. Potential operator errors are drastically reduced. Programming takes just a few minutes. Very good value for money. Significant reduction in manpower. Standard measuring lengths: 3,000mm 6,000mm Drill: Unimax 2 T Spindle MK2 Continuous drilling capacity 18 mm Speed ​​ranges: 100-2000rpm, 200-4000rpm Projection 225 mm Spindle/table distance 60-400 mm Adjustable vice with measuring linear display Positioning length stop: PD-100e control for automatic positioning Positioning: absolute or chain dimensions Easy to read LED display Trolley with DC servo motor Positioning accuracy +/- 0.1 mm/m Attachment arm with spring damping Stop plate with groove Memory control with 3,000 memory options Roller conveyors: RD-200/3 load capacity 200 kg/m Roll width 290 mm Roll diameter 40 / 50 mm insert sheets Struts for stabilization switch cabinet Available options: Minimum quantity spray system with spray head and holder Gripper tongs for clamping the material on the stop plate

Condition: new, Year of construction: 2026, UNIBOHRFIX 100 H Fully automatic drilling machine, measuring length 6000mm Item No. 6020 With the fully automatic drilling machine UniBohrFix 100, your material is positioned on the X-axis at the desired position, clamped and drilled. All you have to do is press the start button. Round tubes, rectangular tubes and angle profiles, as well as flat and solid materials, can be conveniently pneumatically clamped in the horizontal gripper of the positioning system. After simply entering the X values ​​and calling up a program that has already been written, the machine works completely independently. The Y-axis can be adjusted by the operator using a handwheel with a digital display. Advantages • A sequence of holes is automatically executed at precise intervals. • Potential operator errors are drastically reduced. • Programming takes just a few minutes. • Very good value for money. • Significant reduction in labor force Fully automatic execution Measuring length: 6,000 mm Total length: 13,500mm NC 1-axis control Pneumatic vice (span 200 mm) Minimum quantity spray unit with holder and spray nozzle Drill: Unimax 3T AV (for technical data see data sheet) Nwedpfxefu Itbo Ai Ton anti-rotation device motorized height adjustment tapping device NC positioning system PD 200p Feed force 200 kg Positioning according to absolute and incremental dimensions possible Carriage with DC servo motor and encoder Trolley with 12 ball bearings Pneumatic stop clamping with high holding power Steel guide rail with precision toothed rack Steel carrier profile to protect against dirt Infeed and outfeed material roller conveyor RD-200/4 Length: 6,000 mm / 7,000 mm / load capacity 200 kg/m / rollers adjustable in height / mounting bracket / roller width 407 mm / insert plates / struts / roller diameter 50 mm / steel rollers