DJPZ Series Motor Disc Brakes: Installation Methods & Matching Accessories

 

 

1. Installation Methods

DJPZ series integrated motor electromagnetic disc brakes are specially designed to be directly assembled on the rear end of three-phase asynchronous motors. Axial coaxial mounting on motor fan cover is the standard installation form, and customized adapter flanges are available for special motor models with non-standard dimensions.

Standard Coaxial Motor Rear Mounting

Remove the original motor fan and fan cover first. Fix the brake's mounting flange tightly on the motor end cover with matching high-strength connecting bolts, ensuring the brake central axis is fully coaxial with the motor rotor shaft to eliminate eccentric vibration during operation.

The brake disc is sleeved on the motor shaft and locked with a shaft key and fastening nut; guarantee no radial or axial sliding of the disc during motor rotation.

Keep the entire brake caliper body parallel to the brake disc surface, and adjust symmetric equal clearance between friction pads and the disc on both sides to prevent dragging friction and abnormal heating.

Reserve tiny peripheral space only for pad replacement and gap adjustment, as this brake is compactly integrated with the motor; no extra large maintenance space is required.

Custom Non-Standard Flange Mounting

For rebuilt motors, speed reducers and special drive shafts that cannot adopt standard rear fan-side installation, custom transition flanges can be supplied to realize vertical or separated horizontal installation. After assembly, recheck coaxiality and pad clearance to avoid abnormal noise.

Core Installation Requirements

All sliding guide structures adopt maintenance-free self-lubricating sleeves, no regular greasing needed.

Thoroughly clean oil, dust and rust on the brake disc surface before power-on test run; grease contamination will greatly weaken friction performance.

Standard single-side friction pad clearance is controlled at 0.3–0.8 mm via built-in fine adjustment screws.

Fail-safe working logic: When the motor is energized synchronously, the built-in DC electromagnet generates magnetic suction to pull the caliper open and release the brake; once power cuts off, preloaded compression springs push pads to clamp the disc for instant motor holding braking.

Standard power supply: DC96V / DC170V; integrated rectifier inside the brake supports direct AC380V input from the motor circuit.

2. Standard Matching Accessories

Core Functional Supporting Components

Built-in DC Electromagnet Assembly with RectifierExclusive integrated driving unit for DJPZ motor brakes, equipped with a built-in full-wave rectifier module, realizing synchronous power supply together with the main motor without external independent rectifier equipment.

Manual Release Hand LeverUsed for manually opening the brake during power failure, motor maintenance or manual rotation debugging of the equipment.

Status Limit SwitchesMonitor fully-released and fully-braked states of the brake, transmit feedback signals to the electrical control cabinet for interlock protection and fault warning.

Standard Mounting Flange & Locking HardwareMatched with mainstream Y/YE2/YE3 series motor end covers as standard delivery accessories.

Consumable Spare Parts

Quick-swap friction padsEco-friendly non-asbestos wear-resistant friction blocks with snap-in structure; can be replaced without detaching the whole brake from the motor. High-friction semi-metallic pads are optional for frequent start-stop heavy-duty motors.

Adjustment & Fastener KitIncluding clearance adjusting screws, spring preload lock nuts, shaft locking nuts and flat keys for periodic calibration and maintenance.

Spare DC Coils & Rectifier ComponentsFor replacement when coils burn out or rectifier modules fail due to long-time operation.

3. Optional Custom Accessories

Explosion-proof electromagnet assemblies and Ex-certified limit switches for flameproof motors used in coal mines and chemical explosive zones.

Custom transition flanges for special brand motors, reducers and non-standard drive shafts.

Dustproof and splash-proof protective housings for outdoor, metallurgical and cement plant dusty working conditions.

Low-noise buffer components to reduce braking impact for precision transmission equipment.

Corrosion-resistant coated brake housing and stainless fasteners for humid coastal or chemical corrosive workshops.

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