The YEJ Three-Phase Asynchronous Brake Motor from Raydafon Group delivers reliable, high-efficiency braking for industrial applications, ensuring smooth stops and enhanced safety. Ideal for machinery and automation, it features durable construction and superior performance, solving downtime issues while boosting productivity. Experience unmatched quality and precision that sets it apart from competitors.
Raydafon Group offers the YEJ series – a comprehensive range of three‑phase asynchronous motors with integrated electromagnetic braking. Designed for applications requiring rapid stopping, precise positioning, and holding torque, these motors combine high efficiency with robust construction. Available in 7 frame sizes and multiple pole configurations (2P, 4P, 6P), the YEJ series delivers reliable performance across industrial, conveying, and hoisting equipment.
Key Features at a Glance
Power Range: 0.12 – 7.5 kW (standard), with larger options available upon request.
High Efficiency: Meets GB18613‑2012 energy efficiency levels, reducing operating costs.
IP55 Protection & F‑Class Insulation: Suitable for dusty and washdown environments.
Aluminium Alloy Housing: Die‑cast, corrosion‑resistant, and excellent thermal dissipation.
Low‑Noise Bearings: Ensure smooth, quiet operation for improved workplace comfort.
Fast Braking Response: High braking torque with rapid engagement for safety and precision.
Robust Aluminium ConstructionDie‑cast aluminium alloy body and junction box – rust‑proof, lightweight, and sealed against moisture and dust.
Enhanced Heat DissipationOptimised fin design provides large surface area and high thermal capacity, preventing overheating even under frequent start‑stop cycles.
Quiet OperationPrecision‑balanced rotor and low‑noise bearings reduce vibration and acoustic noise, ideal for noise‑sensitive installations.
High Braking TorqueElectromagnetic brake engages immediately on power loss, with fast response and consistent holding torque – critical for hoists, conveyors, and door operators.
Versatile MountingAvailable in B3 (foot), B5 (flange), and B35 (foot+flange) configurations to suit any drive layout.
Custom OptionsSpecial voltages, frequencies, brake voltages, and shaft modifications available on request.
Reliability & Design Excellence
YEJ motors are built with quality components and innovative design features:
Sealed & Durable: The aluminium alloy die‑cast structure ensures excellent sealing and anti‑rust properties, enabling operation in harsh environments.
Superior Cooling: The enhanced heat sink rib design provides outstanding thermal dissipation, preventing overheating and maximising service life.
Low‑Noise Bearings: Specially selected silent bearings reduce noise pollution, creating a quieter and more comfortable working environment.
Fast Brake Response: The electromagnetic brake delivers high braking torque with rapid engagement, ensuring safety and precision in applications where accuracy and quick stopping are critical.
Standard Model Range – YEJ Series
Available in 2‑pole, 4‑pole, and 6‑pole versions. The table below lists key models and power ratings.
S1 (continuous) – suitable for frequent start/stop
Brake Response
0.15 – 0.45 s (no‑load)
Ambient Temperature
-15°C to +40°C
Altitude
≤1000 m
Mounting
B3, B5, B35 (others on request)
Typical Applications
Conveyor Systems: Belt, roller, and screw conveyors requiring quick stopping.
Hoists & Winches: Lifting and lowering applications with holding torque.
Packaging Machinery: Filling, sealing, and labelling equipment.
Door & Gate Operators: Rolling shutters, sliding gates, and barriers.
Woodworking & Metalworking: Saws, grinders, and presses.
Material Handling: Elevators, lifts, and transfer systems.
Why Choose Raydafon YEJ Motors?
ISO 9001:2015 Certified – Rigorous quality control throughout production.
In‑house Engineering – Full control over motor and brake assembly.
Customisation – Special voltages, frequencies, brake voltages, shaft extensions, and mounting arrangements.
Competitive Pricing – Factory‑direct supply for OEM and bulk buyers.
Global Support – Exported to over 50 countries with spare parts and technical assistance.
Quality Assurance & Testing
Every YEJ motor is tested for insulation resistance, winding continuity, brake engagement torque, vibration, and noise. We provide test reports and material certificates. Third‑party inspection is available on request.
✔ISO 9001:2015✔GB18613‑2012✔100% Brake Test✔Full Traceability✔CE / CCC Available
Custom & OEM Solutions
Raydafon offers tailor‑made brake motors to match your equipment. Customisations include:
▸ Non‑standard voltages (220V, 400V, 460V, etc.)
▸ 60Hz or dual‑frequency
▸ Special brake DC voltages
▸ Higher IP ratings (IP56, IP65)
▸ Shaft extensions / keyway modifications
▸ Custom paint and nameplates
Request a free sample or custom quote – our engineers respond within 24 hours with competitive factory pricing.
Frequently Asked Questions
Q: What is the brake supply voltage for YEJ motors?
A: For frame H≤100, brake supply is AC220V (rectified DC99V); for H≥112, it is AC380V (rectified DC170V). Other voltages can be customised.
Q: How fast does the brake engage?
A: The no‑load braking time ranges from 0.15 to 0.45 seconds depending on frame size and inertia.
Q: Can I use the motor in a vertical mounting position?
A: Yes, we offer special brake configurations and bearing arrangements for vertical (shaft‑up or shaft‑down) applications.
Q: Are these motors suitable for frequent start‑stop cycles?
A: Yes, the YEJ series is designed for S1 duty with intermittent braking, but we can also provide S4/S5 duty ratings upon request.
Q: What is the warranty period?
A: We offer an 18‑month warranty from shipment date, covering manufacturing defects, with full technical support.
Partner with Raydafon – Your Brake Motor Specialist
Get reliable YEJ brake motors tailored to your application. Request a quote, sample, or engineering consultation today. Our team responds within 24 hours.
We are happy to provide a quote for any of our products. Give us a call at 86-574-87167707 or fill out the form below and one of our engineers will be in touch shortly. Please include a product description and any customizations you need.
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