BULK HANDLINGUNIT HANDLING

DSK rollers extra heavy duty

PRECISMECA / RULMECA GROUP Heavy Duty Rollers are designed for heavy duty open mining applications. The heavy duty PRECISMECA / RULMECA GROUP rollers are assembled with bearing sizes 6308-6312.

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PRECISMECA / RULMECA GROUP Heavy Duty Rollers are designed for heavy duty open mining applications. Thanks to the high quality machined parts and a non contacting multi-chamber labyrinth seal, the rollers run with a whisper. The high quality machining process is a guarantee for a long service life of the PRECISMECA rollers - 8 years in operation 24 hours a day is not a rarity.
Return rollers with rings should not be used as belt tensioning devices.


MATERIAL SPECIFICATION

Tubes:   To DIN 2458 with tight tolerances, electrically welded; ST37 to DIN 17100
Shafts:   ST37
Housings:   massive housing made of forged steel
Bearing/Sealing:   deep groove precision ball bearings,
(21310 / 21312 / 6310 / 6312 / 6316 / 6318); to DIN 625,
triple lip labyrinth seal, heavy duty circlip
cover cap - cold pressed deep drawn steel to DIN 1623/1624 and zinc plated
Lubrication:   permanent for roller life; lithium grease NLGI 2
Corrosion protection:   wax oil, type resost 7-3; colour painting on request


Main Features and Benefits

  • All DSK rollers available with different shell thicknesses
  • All DSK rollers available in mass limited version
  • Massive bearing housings
  • The use of precision steel tubes guarantees best radial run-out
  • DSK rollers and garlands are available for belt speed up to 10 m/sec.
  • Best suitable for impact roller
  • Different laggings for hard and aggressive applications available
  • Additional sealing for extreme environments deliverable