HSD STONE High Speed Belt and Stone Finishing
Configuration of the Model HSD Stone
Workpiece diameter up to 500 mm / circumverence 1500 mm
Workpiece length 3000 to 8000 mm
Workpiece weightup to 2500 metric kg
Workpiece clamping motorized with programmable clamping force
Workpiece rotation frequency contolled
Workpiece rotation in heavy duty operation servo controlled
Belt grinding heads 7,5 kW up to 11 kW for heavy stock removal
and high speed grinding
Belt tension pressure controlled
Belt dimension 150 mm wide bz 2500 mm long
Superfinish / Microfinish head with up to 4 stations:
SF 102 - 100 mm film width - oscillation up to 3000 strokes per minute
SF 102 DOUBLE - two heads each 100 mm film width
SF 202 - 200 mm film width - oscillation up to 1500 strokes per minute
SF 202 DOUBLE - two heads each 200 mm film width
All superfinish parameters are stored in the program
Programs can easily be stored by the operator
Special sensible precise pressure adjustments for the finish process which is required for anlilox rolls and laser engraved nikel rolls.
Optional turning device
Optional corner and side grinding head
For dechrome operation in the printing industry
Optional automatic measuring tool for diameter
Siemens controls with NC controller
Axis control for convex or concave grinding operation
Enhanced tolerance optimization by software
Wet grinding system with closed loop filter
Dry grinding system with enclosed machine and dust extraction
HSD system is available in open design and enclosed design for
highest demands in safety, quiet comfort and clean environment
Special versions in corrosion proof design
Optional automatic load and unload systems by crane
Optional process control connection for automated production cells
Loeser / Niederberger PFS - HSD STONE Roll grinding with special features for rubber roll processing
Worldwide fastest processing / finishing of rubber rolls because of combination of beltgrinding and stonegrinding.
Most grinding operations are today quicker and more reliable done by the wet belt grinding process.
The belt grinding enables quick combinations of rough stock removal grinding and fine finishing with quickly to change abrasive belts. The Belts can be changed in less than one minute to suit the grinding requirements. This is a major time advantage compared to the hassle of changing grinding stones.
The finishing is recommended wet with coolant or dry with the use of a dust extractor.
Specially by usong coolant the risk for fire and the risk of harmful smoke can be eliminated. Loeser systems meet highest safety and enviroment standards.
For finishing the side of rubber rolls and for special concave or convex shapes of a roll we use 70 mm wide stones.
Photos show details of this machine.