BYT1‑90Z/8.C series is an explosion‑proof, oil‑immersed electro‑hydraulic thruster (electro‑hydraulic pusher), specially designed for hazardous environments with flammable, explosive gas or dust. It serves as the safe actuation unit for various industrial drum brakes and mechanical holding devices.
Basic Identification
Model: BYT1‑90Z/8.C
Type: Explosion‑proof electro‑hydraulic thruster
Explosion‑proof standard: Suitable for Ex d II CT4 / DIP A21 TA, T4 (or equivalent standard)
Application: Actuation and release of spring‑applied brakes
Key Parameters
Rated thrust: 900 N
Working stroke: 80 mm
Power supply: Three‑phase AC 380 V, 50 Hz
Protection class: IP55 / IP65
Insulation class: F or higher
Duty cycle: Suitable for frequent operation
Working Principle
When energized, the explosion‑proof submersible motor drives the impeller to generate hydraulic pressure, extending the push rod to release the brake.When de‑energized, hydraulic pressure disappears; the return spring retracts the rod, allowing the brake to engage automatically.The fully enclosed, explosion‑proof structure ensures safe operation in hazardous areas.
Features
Explosion‑proof design for gas and dust hazardous locations
Stable thrust, smooth action, low noise
Good sealing, long service life, maintenance‑free
Reliable performance in harsh and explosive environments
Compatible with YWZ, YWZ9 series explosion‑proof brakes
Applications
Cranes, hoists and conveying machinery in coal mines, oil fields, chemical plants
Metallurgical and underground equipment requiring explosion protection
Any braking system in flammable, explosive or dust‑hazardous environments






