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Toprun Type <Trackless> Crane Saddle

Hitachi trackless trolley is the latest model that the latest technology is applied to our experiences. Polyurethane Rubber is used for the wheels. It is silent and smooth, and thus it is suitable for a factory that is located near a residential area. Reliability of the saddle has been improved also.

HM Type Toprun Type

  • Brake torque can be adjusted widely from 0% to 60% of the motor torque, and it is user-friendly.
  • Manufacturing time of the crane can be reduced by the centering mark for adjustment.
  • Driving side of the wheel part is with a gear cover.



  • Noise is reduced by approx. 10dB (A-characteristics) by the polyurethane wheel in comparison to the crane with flanged wheel.
  • As wheels run smoothly and polyurethane absorb the vibration of the hoist, vibration conducted by the building will be reduced.
  • As traveling rail is the H-beam only, and costs of the rail and manufacturing are not required, the total cost can be reduced when length of the traveling rail is more than 20 meters. (Estimation by Hitachi)


Model THM5-10 THM5-28 THM5-45
Max Wheel Load (ton) 1.0 2.8 With 2 wheels 4.5(4.0) *
Traveling Speed (m/min) 50Hz 21
60Hz 25
Motor Output (kW) 50Hz 0.30 × 2 (wiht brake) 0.50 × 2 (wiht brake) 0.70 × 2 (wiht brake)
60Hz 0.36 × 2 (wiht brake) 0.60 × 2 (wiht brake) 0.84 × 2 (wiht brake)
No. of starts per hour and duty factor 250 starts/h, 25%ED 150 starts/h, 25%ED
Power Source (3-phase) 200V 50Hz/60Hz, 220V 60Hz, 380 to 400V/415V 50Hz, 400V to 440V 60Hz
Traveling Rail
(H-beam width) (mm)
125,150,175 150,175,200 150,175,200
Approx. Weight (kg) 95 × 2 170 × 2 385 × 2
Applicable Hoist Monorail Monorail / Double rail
The saddle is coated for rust prevention only.
Figure shown in ( ) is applied for a monorail girder.

Saddle Selection

Saddle Selection


The capacity shown in the diagram shows approximate capacity to the maximum span. In the actual selection, the wheel load including the girder must be calculated.

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