The DJPZ-04 is a spring-applied, DC-released disc brake built to bolt directly onto the non-drive end of small-to-medium power electric motors. "DJ" = motor-use brake, "PZ" = disc type, "04" = size 04 in the series (0.4 / 1 / 2 / 4 / 8 / 16 / 40 N·m).
It is the opposite mounting philosophy from every brake in our lineup above:
YW / QW / TJ2 / JZ / MWZ / ZWZA = independent brakes mounted on a shaft, drum, or frame (heavy industry).
DCPZ-300 = caliper disc brake for clamping/holding (Ø300 plate, work-hold NO logic).
DJPZ-04 = compact, motor-end-bell-integrated NC brake for micro gear motors, servo motors, AGV hubs, actuators (Ø100, fail-safe).
Typical Applications:
Micro & medium gear motors - holding & emergency stop
Servo & stepper motors - Z-axis drop prevention
Electric cylinders / linear actuators - precise positioning hold
AGV & AMR wheel hubs - parking & safety brake
Medical devices - patient lift, imaging gantry lock
Robotics - joint brake, collaborative robot safety
Packaging & conveying - index positioning
Technical Specifications
| Model | DJPZ-04 (Series: DJPZ-00 / 01 / 02 / 04 / 08 / 16 / 40) |
|---|---|
| Brake Type | Normally closed, spring-applied, DC electromagnet release |
| Rated Braking Torque | 4 N·m (±10%, set by disc spring preload) |
| Friction Disc Diameter | Ø100 mm |
| Release (Response) Time | <10 ms (typical 5–8 ms at rated voltage) |
| Engagement Time | <15 ms (spring apply, fail-safe) |
| Coil Voltage | DC24V standard / DC110V / DC220V optional |
| Coil Current | Inrush ~2A / Holding ~0.02A (with economizer) |
| Duty | S1 continuous hold; ≤720 cycles/h intermittent |
| Insulation Class | F (155°C) |
| Protection Class | IP54 (IP65 optional with sealed cover) |
| Backlash | Zero (spring-applied friction clamp) |
| Ambient Temp. | -20°C to +55°C (standard); -40°C low-temp option |
| Mounting | Motor end-bell: centering spigot + bolt circle (dimension per DJPZ-04 drawing) |
| Options | Hand release lever, micro-switch (open/closed), IP65 cover, Ex d coil, low-temp kit, custom voltage |
| Standards | JB/T reference; RoHS compliant; CE-style documentation available |
