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products

Main Data

  • Description: Ship lift wormrack
  • GEARX No.: CWR133-490Q
  • Minimum thickness of screw: 133 mm
  • Minimum space width of screw: 244 mm
  • Depth of screw: 100 mm
  • Screw pitch: 450 mm
  • No. of threads: 11
  • Material: G35CrNiMo6-6+QTI DIN EN 10293
  • Heat treatment: Through quenching and tempering
  • Hardness: HB250±20
  • Length: 4,930 mm
  • Width: 1,980 mm
  • Height: 553 mm
  • Thread surface finish: Thread milling by gantry miller
  • Accuracy grade:
    • Tolerance for thread pitch: ±0.1 mm
    • Tolerance for thread helix angle: ±0.05° 
  • Weight of worm-rack blank: 44,000 kg
  • Weight of worm-rack: 24,000 kg

Application

  • Vertical ship lift system

The Main Fabrication Procedure

  • Upon request

Technical Documents

  • Inspection certificate of material
  • Heat treatment certificate
  • Certificate of ultrasonic inspection
  • Magnetic particle detection certificate(on thread flank)
  • Size tolerance and geometric tolerance report
  • Inspection report of thread quality

Relative Standards

  • Upon request