The AZMK series power-off braking three-phase AC electromagnetic brake is a new type of safety brake with the characteristics of fast starting time and short braking time. The voltage and connection of the brake are the same as those of the electric motor, with simple wiring and easy operation. The AC brake does not require an AC-DC voltage exchange device (rectifier), but directly uses an AC power supply, providing a safer and more reliable guarantee for the use of the brake.

The AZMK series three-phase AC brake has a compact product structure and convenient adjustment of braking torque and clearance. Manual release can be achieved by pulling the handle backwards to temporarily release the brake, making it easy and reliable to operate.
The AZMK series three-phase AC brake can directly use a variable frequency power supply in the frequency range of 25-50Hz. To be used in the frequency range of 5-100Hz, the brake needs to be powered directly from a 50Hz standard power supply.

The AZMK series three-phase AC brake can be paired with Y and Y2 series motors to form an AC brake three-phase asynchronous motor, and can also be paired with a variable frequency motor to form an AC brake three-phase variable frequency speed control motor. It can be widely used in various mechanical equipment that requires fast braking and precise positioning.

Working Principle:
The AZMK series three-phase AC brake uses spring pressure to press the armature tightly when power is off, causing a huge frictional (braking) torque between the brake disc and the armature and the rear end cover of the motor, which can quickly brake rotating objects. When powered on, the principle of electromagnetic attraction and release is used to release the brake disc from the braking state, allowing the electric motor to rotate freely.

Technical parameters:

Note: The rated working voltage and frequency can be designed according to user requirements, such as 50Hz 220V400V420V... 60Hz 220V380V440V.

Installation size:

Structure, Installation and Debugging Diagram:

1. Rear end cover 2, bearing 3, spline bushing 4, rotor 5, ordinary flat key 6, brake disc 7, cross screw 8, spring washer 9, screw 10, nut 11, pull rod screw 12, armature plate 13, brake spring 14, safety nut 15, nut 16, magnetic yoke 17, rubberwood handle 18, handle nut 19, dust cover 20, release ring 21, safety nut 22, fan 23, reset spring δ, clearance

Debugging method:
Tools: wrench, feeler gauge
Installation: First, tighten the screw (9) with anti loosening paste on the rear end cover of the motor. The screw and the rear end cover must be perpendicular. The spline (3) should be fitted onto the rotor, and a snap spring should be added. After installing the brake disc (6), install the armature plate (12) and allow it to enter and exit freely without being squeezed. Install the brake spring (13), evenly tighten the safety nut (14), and reach the static braking torque range according to the specifications and models. Screw on the nut (15), install the magnetic yoke (16), and screw on the safety nut (21) to adjust the air gap.
Air gap debugging: Select a 0.25mm thick thin plug gauge, insert it near the screw (9), insert "δ", tighten the safety nut (21) tightly, so that the plug gauge cannot be pulled out, tighten the nut (15) outward, and measure the air gap to be around 0.25mm. Use the same method to adjust the air gaps next to the other two screws separately, so that the air gaps at the three points near the screws are around 0.25mm and uniform.
Manually release and assemble according to the schematic diagram until the handle can be pulled to disengage from the braking state.

Notes:
1. The surface of the armature, rear end cover, and brake disc must be free of oil stains and kept dry and clean;
2. The static braking torque must be adjusted according to the technical parameters. If the torque is too large, the magnetic yoke cannot be engaged, which can easily burn out the coil. If the torque is too small, it will affect the braking effect;
3. The nut (15) and the safety nut (21) must be securely fastened without loosening, and the nut (15) must be tightened with anti loosening paste.