Roll grinding and center type grinding

Rollgrinding machines turn the workpiece on driven rolls and center type machines hold the part between center,cone or chuck and tailstock. Between centers tight tolerances can be achieved and heavy stock removal can be applied also on light parts. The roll grinding machines with the roller bed are easy and quick to load and unload and can handle parts without center. On both systems the grinding head is travelling along the workpiece.The heads can be configured with belt grinding, polishing, stone grinding, superfinish and microfinish with tape as well as with lapping stones

Applications:

Surface conditioning prior to surface coating or plating. Finishing of coated surfaces like HVOF spray coatings, chrome plated rolls, rubber coatings and ceramic coatings. Stripping of hard materials like ceramic or chrome plated printing rolls for quick rework. Fine superfinishing of rotogravoure rolls prior to copper plating or engraving. Grinding, polishing, superfinishing and microfinishing of pressure rolls, sleeves, anilox rolls or printing rollers used in the graphic industry.

Hydraulic cylinder surface preperation for extended life times of the product lip seals and o-rings.

Tolerance grinding and grinding to specific shapes in the HSD machines. Decorative grinding and preperation of special surface textures for increased life time of doctor blades in printing machines. Descaling and removing of turning marks prior to ultrasonic testing for billerts and steel rolls and bars for steel works. Therefore machines with roller bed are most suitable.

Microfinish down to Ra < 0.004 µm on mirror polished rolls for the film and foil industry. Polishing operations for the rolls used in paper mills.

Workpiece and parts:

paper rolls, rotogravoure rolls, cylinders, printing rolls, sleeve rolls, billets, drums, rubber rolls, steel work rolls, calander rolls, anilox rolls, ceramic rolls, HVOF rolls, granit rolls, telescopic cylinders, axles, hydraulic bars, tubes, pipes...

Models:

New Generation 2007 : High Speed Dechrome and Finish for diameter up to 500 mm and weight 2,5 ton

HSD tolerance grinding with belt and stripping of chrome

HSDSF beltgrinding and superfinish/microfinish for all operations at once

HSD Stone beltgrinding and stonegrinding for creating curved rolls

HSF Super Finish and Microfinish for mirror polished rolls

ZSP 377 Belt grinding machine between centers for large rolls diameter 1000 mm and up to 14 meter long

ZSPR 377 Belt grinding machine with driven roller guide for heavy parts with quick and easy load/unload

Literature:

pls request by email : sales@loeser.de

Description in the section below