IP54/IP55/IP65 Industrial Flameproof Variable Speed Crane Motor Ybzp Full Power Range China OEM

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Product Description

Basic Information
Model NO.YPZPSpeciesExplosion-Proof Three-Phase
Rotor StructureSquirrel-CageCasing ProtectionExplosion-Proof Type
Number of Poles8Starting ModeVariable Frequency Starting
CertificationISO9001, CCCRated Frequency50Hz/ 60Hz
Rated Voltage380V/ 440VTemperature Range-15°C to 40°C
Protection RatingIP54, IP55, IP65HS Code8483409090
Production Capacity50000pieces/YearOriginChina
Product Description

YBZP Series Explosion-proof Variable Frequency Speed Regulation Three-phase Asynchronous Motor for Crane

YBZP series motors are primarily designed for driving various types of explosion-proof hoisting machinery. With high overload capacity and mechanical strength, they are ideal for equipment operating under short-term or intermittent duty cycles with frequent starting and braking.

Explosion Proof Crane Motor
Technical Specifications & Protection
  • Protection Rating: Available in IP54, IP55, and IP65.
  • Cooling Methods: IC410 for base numbers 112-132; IC411 for base numbers 160-250.
  • Insulation Rating: Class F (suitable for up to 40°C) and Class H (suitable for up to 60°C).
  • Operating Environments: Altitude up to 1000m; Humidity up to 90% at 25°C.
Product Code & Installation
Product Code Explanation
Structure Form Symbol Frame No. Range
Installation Form IM1001112~160
IM1003180~355
IM3001112~160
IM3003180~225
IM3011112~160
IM3013180~315
Duty and Technical Data

These motors are classified for intermittent periodic loads (S2, S3, S4, and S5). The standard reference duty cycle for single-speed is S3 40% and double-speed is S3 25%/15% over 10-minute cycles.

Torque Performance (Single-Speed)
Rated Power (kW) Max Torque / Rated Torque Stall Torque / Rated Torque
≤ 5.52.02.0
5.5 ~ 112.32.3
> 112.52.5
Construction Details

The series includes single and double-speed types. Double-speed motors use a squirrel-cage design with double-windings and integrated brakes.

  • Brake Selection: High-quality spring-applied power-off brakes or optional safety brakes are available.
  • Terminal Box: Motors size 112-180 share a box; 200-250 have separate boxes for motor and brake.
  • Rectifiers: Brake applies half-wave rectifiers with AC 380V input.
Motor Construction
YBZR Wound-Rotor Series

YBZR series motors are designed for Class IIB, IIC, and IIIC environments containing combustible gases or dust. They comply with flameproof enclosure "d" and dust ignition protection "t" standards.

YBZR Code
Structure & Installation Code Base Range Quill Type
IM1001 IM1001112~160Cylindrical end
IM1002 IM1002112~160Two cylindrical ends
Internal Structure
YBZR Internal Diagram
Product Applications

🔹 Packaging & Petroleum
Efficient support for packaging processes and stable power for pumps, compressors, and agitators in explosive environments.

Application 1

🔹 Mining & Marine
High power density for mining machinery and robust propulsion/steering gear support for maritime transportation.

Application 2
Frequently Asked Questions
1. What are the primary uses for YBZP and YBZR motors? These motors are specifically designed to drive explosion-proof hoisting machinery and cranes, suitable for environments with frequent starting, braking, and reversal.
2. What protection ratings are available? The motors offer IP54, IP55, and IP65 protection ratings, providing robust defense against dust and water ingress in industrial settings.
3. Can these motors handle high-temperature environments? Yes. Class F insulation is rated for ambient temperatures up to 40°C, while Class H insulation can operate in environments up to 60°C.
4. What explosion-proof classifications do they meet? They comply with Class IIB, IIC, and IIIC environments, covering explosive gases, vapors, and combustible dust environments (T1 - T4 groups).
5. What voltage and frequency options are supported? Standard ratings include 380V or 440V at 50Hz or 60Hz. Specialized voltages like 660V or 1140V are also available for specific mining applications.
6. How is the braking system configured? Motors can be equipped with electromagnetic disc brakes or spring-applied safety brakes, ensuring high mechanical safety and reliable stopping power.

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