YPZ2 Electric Hydraulic Arm Disc Brake

The YPZ2 series electric hydraulic arm disc brake is a spring-applied, fluid-released fail-safe safety brake designed strictly in accordance with German DIN 15435 and crane application standards. It delivers high-efficiency service braking and emergency stopping for heavy machinery such as port container cranes, large belt conveyors, stacker-reclaimers, and metallurgical hoisting machinery.

DIN-Standard Arm Geometry: Interconnected lever arms are built to exact DIN 15435 dimensions, allowing direct drop-in replacement on existing European-standard industrial braking bases without retrofitting cost.

Integrated Ed-Series Actuation: Released via high-efficiency, continuously rated Ed series electro-hydraulic thrusters. The integrated sealed pump unit delivers quiet, low-vibration, continuous hydraulic pressure with minimal power consumption.

Synchronized Interconnected Equalization: Features a mechanical automatic shoe balancing device that locks the left and right arms into a synchronous movement path, permanently eliminating single-sided pad dragging or uneven friction block consumption.

Proportional Spring Scaling: High-fatigue compression springs are housed in a specialized, clear-scale enclosure, allowing maintenance engineers to visually read and calibrate exact braking torque parameters on-site.

Every YPZ2 brake assembly undergoes comprehensive static and dynamic load monitoring on our automated inspection stands. Factory Test Reports (FTR) verify the following data lines:

Full-Stroke Response Check: Performance testing under rated voltage to verify thruster stroke limits and zero-drag clearance.

Torque Load Verification: Multi-point static holding force test to guarantee matching data with the specified engineering requirements.

Hydraulic Pressure Integrity: Testing of the integrated thruster cylinder body to ensure zero seal sweating or long-term drop-off.

Armature Air Gaps: Check the shoe clearance during regular plant audits; confirm that the mechanical interlock bar keeps the space equal on both sides of the disc.

Thruster Fluid Inspections: Monitor hydraulic oil transparency and volume inside the Ed thruster reservoir every six months; refresh with clean turbine oil if contaminated.

Lining Limits: Monitor the wear indication step on the pad block; replace the friction pads in full sets before the thickness drops past the 3 mm safety line.

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