77021022
BRAKE
The 770 210 22 BRAKE is an essential safety and control component for the drifter's rotation system. It provides the holding force needed to lock the drill string securely during rod changes, ensuring both operator safety and efficient drilling cycles.
Description
770 210 22 BRAKE Located inside the drifter's rotation unit, this BRAKE assembly is responsible for stopping and holding the drill string stationary. It engages to lock the rotation when adding or removing rods, and is critical for breaking threaded…
Full Technical Description
770 210 22 BRAKE Located inside the drifter's rotation unit, this BRAKE assembly is responsible for stopping and holding the drill string stationary. It engages to lock the rotation when adding or removing rods, and is critical for breaking threaded joints loose. A firm, positive braking action allows for quick and predictable rod handling, which directly impacts the overall speed of the drilling cycle.
Proper function of this BRAKE is fundamental to safe operations at the drill face. If the BRAKE fails to hold, the drill string can spin uncontrollably during rod handling, creating a serious hazard. Even minor slippage can slow down operations, as the operator has to fight against a creeping rotation, leading to lost time and increased wear on other rotation components.
Common signs of a worn BRAKE include a drill string that won't stay locked or a slow, weak braking response. If the rotation continues to creep when it should be stopped, the internal friction plates or seals are likely worn. Prompt replacement is the best course of action to prevent accidents and restore efficient operation.
Applications
- Underground drilling jumbos
- Mining and tunneling
- Hydraulic control systems
- Rock drilling spare parts
Specifications
| Brand | Sandvik |
|---|---|
| Machine Type | DL321-7 |
| Assembly | AXLE, REAR |
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