DCPZ20-400 Electromagnetic Disc Brake | Fail-Safe Safety Brake

Product Overview

DCPZ20-400 electromagnetic disc brake is a heavy-duty normally closed industrial safety brake with classic spring applied braking, electromagnetic release principle. It is equipped with matched DT400-400Y electromagnet as driving component. When powered on, electromagnet pulls armature to overcome spring preload, separates brake pads from brake disc, and releases the brake so that equipment can run normally.

Once power is cut off, circuit fails or power supply is interrupted, built-in high-strength springs instantly push brake pads to clamp the 400mm brake disc and achieve automatic emergency braking. It has built-in automatic friction pad wear compensation, keeps stable pad-disc clearance during long-time operation. Adopting non-asbestos friction pads, this caliper brake supports high-frequency cyclic braking, compact in structure and easy for installation, suitable for heavy load industrial braking scenarios.

Core Features & Product Advantages

Fail-Safe Normally Closed Safety Design: Spring applied braking, automatic braking when power loss. Prevent equipment runaway and load falling, meets international industrial safety standards.

Automatic Pad Wear Compensation: Built-in gap compensation mechanism, automatically compensates friction pad wear, keeps consistent braking clearance, reduces manual adjustment work.

Heavy-Duty Braking Capacity: Designed for 20mm thick brake disc and 400mm disc diameter, provides large and stable braking torque for heavy inertia equipment.

Quick Pad Replacement: Insert type friction pads, can be replaced rapidly without disassembling whole brake caliper, shorten downtime and maintenance cost.

High-Frequency Stable Braking: Sensitive response, smooth braking without impact or jitter, suitable for frequent start-stop working conditions.

Manual Release Function Available: Manual release device for emergency operation during power failure, convenient for on-site maintenance.

Non-asbestos Friction Pad: Wear-resistant, stable friction coefficient, low dust and environmental friendly.

Compact Caliper Structure: Small footprint, easy to install on equipment with limited installation space.

Application Scope

DCPZ20-400 electromagnetic caliper disc brake is widely used for machinery requiring emergency stop, parking holding and deceleration braking:

Overhead cranes, gantry cranes and heavy-duty lifting winches

Belt conveyors and bulk material conveying equipment in mine, port and plant

Metallurgical machinery, steel coil winding and unwinding tension control

Cable, paper and textile winding production lines

Construction machinery and heavy-duty automated transmission equipment

All industrial equipment needing power-off safety braking and load holding

Complete Technical Parameters

Working Principle

Power-on Release (Normal Operation State)When electromagnet is energized, magnetic force pulls the armature assembly and overcomes preload force of the built-in springs. The brake pads separate from 20mm thick 400mm brake disc, brake fully released, and mechanical equipment can operate normally without braking resistance.

Spring Braking (Emergency & Parking State)When power supply is cut off or electrical system fails, electromagnet loses magnetic attraction immediately. High-strength compression springs push the caliper mechanism, making brake pads tightly clamp the brake disc. Reliable friction braking torque is generated to stop rotation and lock the load, avoiding safety risks such as load dropping and equipment sliding.

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