YPZ2-630*30II/E121-R-MSK1 Electro-hydraulic Disc Brakes

YPZ2-630*30II/E121-R-MSK1 Electro-hydraulic Disc Brakes

The YPZ2-630*30II/E121-R-MSK1 is a heavy-duty, spring-applied, hydraulically released disc brake. It is designed for large-scale industrial machinery requiring high braking torque and precise control.

The model number breakdown is as follows:

YPZ2: The series designation for Electro-Hydraulic Arm Disc Brakes.

630: The Brake Disc Diameter of 630 mm.

30: The Braking Torque Rating of 3000 N·m.

II: The Series Type (Type II). This indicates a specific configuration, typically featuring interlocking equalization and automatic wear compensation to maintain consistent performance.

E121: The specific Thruster Model (equivalent to Ed121/6). This is a large electro-hydraulic thruster generating 1250 N of force.

R: The Mounting Orientation, indicating a Right-Hand installation configuration.

MSK1: The Option Code. This denotes the inclusion of a Limit Switch (specifically for "Open" position monitoring).

💡 Key Features & Characteristics

High-Capacity Thruster (E121 / Ed121):

Thrust: The E121 thruster generates a rated thrust of 1250 N.

Function: It provides the hydraulic force necessary to overcome the brake springs and release the caliper from the 630mm disc.

Design: It is an integrated electro-hydraulic unit (motor + pump + cylinder) designed for high reliability and continuous duty.

Type II Configuration (Automatic Control):

Interlocking Equalization: The "Type II" designation ensures that both brake pads (shoes) retract and apply equally via a mechanical linkage. This prevents "dragging" on one side and ensures even wear.

Automatic Wear Compensation: The brake features a mechanism to automatically adjust the pad clearance as the friction material wears down, maintaining a constant air gap and braking torque without manual intervention.

Smart Monitoring (MSK1 Option):

Limit Switch (K1): The "MSK1" suffix indicates the brake is equipped with a行程开关 (travel switch). This switch sends a signal to the main control system (PLC) to confirm that the brake is fully open (released) before the motor is allowed to start. This prevents the machine from trying to move against the brake.

Visual Torque Adjustment:
The main compression spring is housed in a square tube with a graduated scale, allowing maintenance personnel to easily read and adjust the braking torque (spring force) to match the 3000 N·m rating.

Maintenance-Free Linkage:
The main pivot points are equipped with self-lubricating bearings, eliminating the need for manual greasing and ensuring smooth operation in dusty environments.

🏭 Typical Applications

The YPZ2-630 series is used in heavy industry where large rotating masses must be controlled with precision:

Port Machinery: Large ship-to-shore cranes, gantry cranes, and RMGs.

Mining: Large ball mills, crushers, and heavy-duty conveyors.

Metallurgy: Steel rolling mills and large overhead cranes.

Power Plants: Large fans and winders.

📋 General Technical Specifications

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Note: The E121 thruster is a large unit. When replacing it, ensure the mounting dimensions (hole spacing) and electrical specs (voltage/frequency) match. The MSK1 limit switch is a safety critical component; ensure the wiring is connected to the machine's safety circuit to prevent "dragging" starts.

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