The MWZ315-630 is a normally - closed, energy - saving electromagnetic drum brake with a spring - applied, electromagnetic - released design, widely used in industrial drive braking. Below is its detailed core information:
Core Technical Parameters
| Parameter | Details |
|---|---|
| Model | MWZ315-630 |
| Applicable drum diameter | 315 mm |
| Rated braking torque | 630 N·m |
| Brake shoe retraction distance | 0.6 mm (some variants 0.8 mm) |
| Power supply | DC 220V (control circuit AC 380V, 50Hz) |
| Matched electromagnet | DTZ - 315 (rated suction 2800 N) |
| Operating frequency | Up to 900 cycles/h |
| Total weight | About 33 kg (some data shows 90 kg, subject to actual model) |
| Compliance standard | JB/T7685-2006 (dimensions and braking torque also comply with relevant industry specifications) |
Operating Conditions
Ambient temperature: -20°C to +40°C (some manufacturers expand to -25°C to +50°C).
Relative humidity: ≤90% (non - condensing).
Altitude: ≤2000 m.
Environment: No flammable, explosive, corrosive gases or conductive dust; anti - corrosion modification is required for outdoor or corrosive environments.
Structural & Performance Features
Normally - closed design: Brakes by spring force when power is off for fail - safe protection; releases by electromagnetic force when powered on, with an equal retraction distance device to prevent brake lining drag.
Energy - saving & eco - friendly: Uses non - asbestos linings; the electromagnet adopts a strong - to - weak current conversion power - supply mode to save energy and reduce heat generation.
Reliable & durable: Self - lubricating bearings at hinge points reduce maintenance; stable braking, low noise, and high action frequency adapt to frequent start - stop scenarios.
Easy maintenance: Equipped with lifting hooks and adjustable gaps for convenient overhaul and part replacement.
Typical Applications
It is suitable for deceleration and parking braking of belt conveyors, cranes, winches, port loading and unloading machinery, metallurgical and mining equipment, etc., and can meet the needs of medium - load, high - frequency braking.
