Polishing and lapping technology
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Expanded range We have revised and expanded the entire lapping range for you! See for yourself! Complete pricing transparency Prices markedly reduced in some cases. All prices can be directly consulted in the brochure. Polishing and lapping technology

Polishing and lapping technology Overview Polishing and lapping machines Polishing and lapping discs Lapping Consumables Surface protection Spray unit Polishing and lapping disc accessories Lapping medium powder Interference testing devices Hand lapping discs, incl. diamond stick Accessories for polishing and lapping machines Dressing systems Lapping fluids Polishing table Polishing cloths Surface cleaning Ultrasonic cleaners

04 Polishing and lapping machines joke EL 380 joke EL 600 joke EL 700 joke EL 1000 joke EL 1200 Contact pressure devices EL380 - 1200 Lapping medium dosing devices Spray unit 09 Hand lapping discs, incl. diamond stick 10 Accessories for polishing and lapping machines Dressing rings Workpiece holders and Compensation washers Pellets made of ceramic and plastic Hand weights 14 Polishing and lapping discs Bi-Composite polishing and lapping discs Fixed-grit and cast material lapping discs Polishing and lapping discs bronze, copper and tin Polishing and lapping disc accessories Polishing cloth...

8. Lapping //8.1 Lapping machines r± Polishing and lapping machines joke EL 380, 600 and 700 The series EL 380 to EL 1200 polishing and lapping machines from joke have stood for quality and reliability for professional use, incl. "Made-in-Germany" machine building, for many years. The EL 380 has been specially developed for processing small workpieces and individual components in small series. This variant has been successfully used for many years in laboratories and research institutes, etc. The series EL 380 machines can be equipped with a pendulum arm. Furthermore, a base unit is...

8. Lapping //8.1 Lapping machines Polishing and lapping machines

8. Lapping //8.1 Lapping machines Contact pressure devices for lapping machines EL 380 to 1200 In order to optimise your polishing work, joke recommends, depending on the application, a pneumatic contact pressure device. This can be used to generate high contact pressures that cannot be achieved using hand weights. High contact pressure allows high stock removal and moreover with a good surface. Using an aid of this kind allows you to achieve optimum results while saving time and effort. The pressure on the workpieces required for processing can be optionally generated by a contact pressure...

8. Lapping // 8.1 Lapping machines The newand lapping machine ELX premium series Polishing The advantages • Latest-generation “high-end” machine • Consistent, reproducible manufacturing results owing to the PLC controller • With water cooling = less heat increase = greater stock removal Find out more about our new Premium series; contact our product manager

8. Lapping // 8.1 Lapping machines Lapping medium dosing devices • Spray units Accessories for polishing and lapping machines Lapping medium dosing devices Lapping medium dosing device for EL 380 Lapping medium tank volume 6 litres Pump motor output 0.08 kW Lapping medium dosing device for EL 600 to EL 1200 Lapping medium supply via dosing block from above Lapping medium tank volume 12 litres Pump motor output 0.08 kW Accessories / spare parts Mounting for lapping medium dosing device EL 600 / EL 700 Holder not required for machines with a pneumatic contact pressure device. Mounting for EL...

8. Lapping //8.2 Hand lapping Hand lapping discs Hand lapping discs These discs are ideal for on-site refurbishing or also for use in small series production. They are suitable for example for polishing and lapping gaskets made of carbon, carbide, ceramic and silicon carbide, etc. The discs (0 300 mm) are available in coarse, fine and superfine grades. Solid-surface components of up to 0 40 mm and rings up to 0 70 mm can be processed.

8. Lapping //8.3 Accessories for polishing and lapping machines Dressing rings Dressing rings essentially perform three functions: • Receiving the workpieces to be processed • Assisting lapping medium distribution • Keeping the lapping disc flat by appropriate positioning Ceramic dressing rings with SPYLAP® control system The patented SPYLAP® system allows control over the temperature of the lapping disc (and the resulting flatness) during dressing in the simplest possible manner. Each ceramic dressing ring is equipped with SPYLAP® elements that change colour from black to red as a result...

8. Lapping //8.3 Accessories for polishing and lapping machines Other sizes and with a groove available on request! Other sizes and without a groove available on request! Other sizes and without a groove available on request! Dressing rings for fixed grit lapping discs, silicon carbide Fixed-grit dressing rings are generally used on fixed-grit lapping discs. The fixed-grit lapping discs and dressing rings consist of a silicon carbide mixture bonded in synthetic resin. They are available in different grit sizes. Water is sufficient as a lubricant. For optimum results dressing rings and...

8. Lapping //8.3 Accessories for polishing and lapping machines r± Accessories for polishing and lapping machines Compensation washersCompensation washers Soft, adaptable rubber material for compensating any discrepancies in workpiece height. It also protects the workpieces against damage and has a vibration-absorbing effect. Accessories for polishing and lapping machines Workpiece holders made of laminated paper and plastic Dimensions Workpiece holders made of plastic Workpiece holders made of laminated paper for safely guiding the workpieces. Workpiece holders made of plastic for safely...

8. Lapping //8.3 Accessories for polishing and lapping machines Pellets made of ceramic and plastic Ceramic pellets or plastic pellets can be used as spacers for templates, workpiece carriers and dressing rings. Optimises the process and reduces aquaplaning behaviour. Highlights • little temperature increase • no contamination • long service life Plastic pellets, self-adhesive Accessories for polishing and lapping machines Hand weightsHand weights The hand weights are made of cast material. They are used as an alternative to the pneumatic contact pressure devices. Highlights • little...