The SBD100-A is a normally closed, fail-safe disc brake designed for emergency and parking braking on low-speed shafts of hoisting machinery. It is spring-applied and hydraulically released - meaning the brake is always engaged by default and only opens when hydraulic pressure is present.
Installed on the output shaft side of gearboxes or directly on drum shafts, it acts as the final safety barrier to prevent uncontrolled load descent in case of motor failure, power loss, or hydraulic system fault.
Typical Applications:
Overhead & gantry cranes (hoist drum low-speed shaft)
Mine hoists / mine winders
Port container cranes & ship loaders
Steel mill ladle cranes
Winches and drawworks
Technical Specifications
|
Parameter |
Value |
|---|---|
|
Model |
SBD100-A |
|
Brake Type |
Normally closed, fail-safe disc brake |
|
Actuation |
Spring-applied / Hydraulic release |
|
Rated Clamping Force |
72 kN |
|
Release Pressure |
10 – 13 bar (adjustable) |
|
Max. Braking Torque |
Up to 57.6 kN·m (with Ø800 disc, μ=0.4) |
|
Disc Diameter Range |
Ø800 – Ø1800 mm (custom available) |
|
Friction Lining |
Asbestos-free, high-temp resistant |
|
Lining Wear Limit |
5 mm per pad (with wear indicator option) |
|
Protection Class |
IP65 |
|
Ambient Temp. |
-20°C to +50°C (standard) |
|
Options |
Wear limit switch, position sensor, manual release device |
|
Mounting |
Horizontal / vertical (shaft-mounted or frame-fixed) |
