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Low-speed high-torque S series motor with mechanical brake:
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Features of Brake:
- A long service is ensured by use of a wet type multi-disk.
- A high load bearing is used for the output shaft so that the shaft is resistant to radial loads.
- The brake mechanism is reliable and safe since it is designed to be opened by pressure.
- Use of the wet type brake mechanism eliminates the need of worrying about rust.
Brake Specifications:

Hydraulic Motor Specifications:
See the description of the ORB-S series.
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Motor with mechanical brake GWM series:
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This motor is provided with a mechanical brake to ensure reliable braking, stopping and working.
The GWM series motor with the mechanical brake is a compact, low-speed and high-torque motor with a built-in pressure release type mechanical brake. The motor is designed so that the brake is mechanically applied when the pilot pressure in the circuit is released. This ensures reliable braking and stopping, thereby providing work safety. Needless to say, sufficient safety considerations are given; for example, brake is kept applied at all times when the hydraulic motor is stopped. Furthermore, faster and more reliable braking and stopping are provided by using the hydraulic control valves (counterbalancing valve, counterbalancing brake valve, crossover relief valve, etc.) which can be directly coupled to this GWM series.
Application:
- For ships: Braking of the boom winch, wire reel winch and side roller
- For industrial machinery: Positioning of carriers including belt conveyors. Preventing the screw of the injection molding machine from reverse rotation
- For vehicles: Braking of the truck crane winch. Prevention of drift when stopping the mini-back hoe swing unit. Prevention of the crawler from free running on the slope.
Brake Specifications:
Two pilot systems are available; external and internal system.

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PM-B power motor (with mechanical brake):
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(The photo shows a motor equipped with counterbalancing brake valve).
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PM-B hydraulic motor + mechanical brake + speed reducer
- Space is saved by compact designing.
- Costs are reduced by integrated designing.
- The output torque is quadrupled by a built-in speed reducer.
- Free running is prevented by a built-in mechanical brake. (Brake torque: 780 N.m)
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Specifications:

Note: When a rectangular flange for installation is provided, 3 kg must be added to the above weight.
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