Product Overview

High-Voltage Rib-Cooled Motors

Our high-voltage rib-cooled motors feature heavy-duty cast iron enclosures with a fully enclosed air cooling structure. The optimally shaped cooling ribs align with airflow paths to deliver outstanding heat dissipation during continuous operation. Equipped with premium copper squirrel-cage rotors, these units support heavy loads while maintaining ultra-smooth running performance. Rotor copper bars are secured via integral slot fastening technology for exceptional long-term reliability.

Changli’s rib-cooled explosion-proof motors integrate advanced technology and mature industrial design to deliver outstanding performance, energy efficiency and operational safety. Developed specifically for high-voltage working systems, they combine certified explosion-proof construction and effective rib cooling to satisfy strict hazardous-area operation requirements.

• High Energy Efficiency: Outstanding power-to-weight ratio for higher output with compact overall dimensions and lighter weight
• Certified Explosion-Proof Construction: Fully compliant with global explosion-proof standards for safe operation in explosive gas atmospheres
• Optimized Rib Cooling System: Accelerated heat dissipation keeps operating temperatures low and guarantees stable long-duration running
• Service-Friendly Structure: Simplified maintenance and repair procedures extend service life and cut production downtime
• Wide Application Flexibility: Perfect for all industrial scenarios demanding high power output and intrinsic safety

Key Features & Benefits

Excellent Power-to-Weight Ratio

The rib cooling layout maximizes power density while limiting overall size and weight. The compact footprint saves installation space and enables seamless integration into diverse industrial equipment.

Certified Explosion Protection

Engineered for hazardous locations with flammable gas or dust, the motors fully comply with international explosion-proof specifications to eliminate safety risks during production.

High-Performance Cooling System

Structured cooling ribs greatly boost heat exchange efficiency and maintain ideal operating temperatures. Stable continuous operation is guaranteed under harsh working conditions, effectively preventing overheating and extending motor service life.

Low Maintenance & Easy Servicing

Every structural detail prioritizes convenient inspection and component replacement. Fast on-site repairs reduce equipment downtime, lower overall operating costs and lift production efficiency.

Fully Customizable Configurations

Flexible design supports customized voltage, cooling modes and ingress protection grades, matching your unique on-site operating parameters.

Core Applications

Changli rib-cooled explosion-proof motors fit numerous industrial equipment used in hazardous environments:

• Pumps: Fluid and water delivery in explosive working zones
• Fans & Blowers: Ventilation and air circulation for classified hazardous areas
• Compressors: Air and gas compression for explosion-risk industrial sites
• Hoists & Conveyors: Safe heavy-load transportation in dangerous locations
• Extruders & Grinding Mills: High-precision material processing requiring explosion protection
• Cutting & Sawing Equipment: Safety-critical material cutting and forming machinery
• Main target industries: oil & gas, chemical, mining and petrochemical sectors with explosive atmospheres.

Why Select Changli Rib-Cooled Explosion-Proof Motors?

1. Pioneering Industrial Technology: Our rib-cooled explosion-proof motors establish new benchmarks for energy efficiency and intrinsic safety
2. Certified Safe & Stable Performance: Built to meet top-tier global explosion-proof standards for trouble-free hazardous-area operation
3. Superior Power Density: Optimized compact design delivers high efficiency and strong power output
4. Minimal Maintenance Costs: Accessible layout speeds up servicing, cuts downtime and prolongs motor service life
5. Customizable Specifications: Multiple configurable options to match your exact application demands

Looking for Explosion-Proof Motors for Your Production Line?

If you need high-efficiency explosion-proof motors for industrial hazardous-area operations, Changli rib-cooled explosion-proof motors are your ideal solution. Reach out to our team to discuss your technical requirements, request a quotation or learn how our motors can boost your site safety and operational efficiency.

Contact our team for detailed information and quotation support.

Technical Parameters

• Applicable Standards: IEC / NEMA / GOST
• Power Range: Up to 2240 kW (3000 HP)
• Voltage Range: Up to 11.5 kV
• Frame Sizes: IEC 315 – 560 / NEMA 5000 – 5800
• Number of Poles: 2 – 12 poles
• Cooling Types: IC411, IC416 / TEAC, TEFC
• Ingress Protection: IP55, maximum IP66
• Starting Modes: Direct-on-line (DOL), Variable Speed Drive (VSD)
• Applicable Environments: Standard safe zones, classified hazardous explosive zones