SEW EURODRIVE R47 DRN90S4 Gearmotor: High-Performance Solution for Demanding Industrial Applications

Introduction

SEW EURODRIVE's R47 series represents the gold standard in industrial gearmotor technology, and the R47 DRN90S4 model stands out as a particularly robust solution for medium-duty applications. This gearmotor combines superior engineering with practical design features to deliver reliable performance in the most challenging industrial environments. Designed to bridge the gap between compact units and heavy-duty systems, the R47 DRN90S4 offers an exceptional balance of power, efficiency, and durability.

This comprehensive technical profile examines the R47 DRN90S4's innovative design features, operational capabilities, industry-specific applications, and the tangible benefits it delivers to operators across multiple sectors. A detailed specification table provides quick reference to key performance parameters.

Technical Features

1. Advanced Motor Design

• Model: DRN90S4 (3-phase asynchronous motor)

• Power Output: 1.5 kW (1500W) with high overload capacity

• Efficiency Class: IE4 Super Premium Efficiency (optional)

• Cooling System: Integrated cooling fins with optional forced ventilation

• Thermal Protection: PTC thermistors and optional PT100 sensors

2. Gear Unit Engineering

• Gear Type: Helical gear with optimized tooth contact pattern

• Torque Range: 150-2,200 Nm (ratio-dependent)

• Gear Ratio Options: 5.36-197.39 (extended range available)

• Precision Class: AGMA 13 (standard), AGMA 10 available

• Lubrication: Synthetic oil with 50,000-hour service interval

3. Mechanical Construction

• Housing Material: High-grade cast iron (GG30) with vibration-damping properties

• Shaft Configuration: Solid output shaft standard (keyed optional)

• Mounting Versatility: B3, B5, B14, and B6 mounting positions

• Sealing System: Labyrinth seals with integrated particle deflectors

4. Smart Technology Integration

• Sensor Compatibility: Ready for multi-turn absolute encoders

• Connectivity: Direct integration with SEW MOVI-C® automation system

• Diagnostic Features: Vibration analysis and oil condition monitoring ports

Application Specialization

The R47 DRN90S4 excels in applications requiring consistent performance under variable loads:

1. Material Processing

   • Crusher and mill drives in mining operations

   • Mixer drives in chemical processing

2. Food Production

   • High-torque agitators for viscous products

   • Conveyor systems for bulk material handling

3. Automotive Manufacturing

   • Robotic welding cell positioners

   • Assembly line transfer systems

4. Renewable Energy

   • Solar tracker drives

   • Small wind turbine pitch control

5. Port Machinery

   • Container handling equipment

   • Dock conveyor systems

Competitive Advantages

1. Enhanced Durability

• Reinforced bearings with 30% higher load capacity than standard models

• Special surface treatments for corrosion resistance

2. Energy Optimization

• Power loss reduction technology cuts energy consumption by up to 18%

• Regenerative capability when paired with SEW inverters

3. Precision Performance

• Torsional stiffness optimized for positioning applications

• Reduced vibration transmission to connected equipment

4. Global Compliance

• Meets international standards including:

  • ISO 9001:2015

  • ATEX 2014/34/EU (optional)

  • IEC 60034-30-2 (IE4)

5. Service-Friendly Design

• Tool-free inspection ports for maintenance

• Quick-disconnect electrical connections

Technical Specifications at a Glance

Why Customers Choose the R47 DRN90S4

1. Application-Specific Optimization

The gear tooth profile is computer-optimized for:

• Reduced sliding friction

• Even load distribution

• Minimal wear over time

2. Intelligent Drive Solutions

Seamless integration with:

• MOVITRAC® frequency inverters

• MOVI-C® modular controllers

• SEW's drive monitoring software

3. Extended Product Lifecycle

• 10-year spare parts availability guarantee

• Backward compatibility with previous R4x series

4. Custom Engineering Options

• Special shaft extensions

• Custom paint systems

• Explosion-proof versions (ATEX, IECEx)

• Food-grade lubrication variants

5. Comprehensive Support Package

Including:

• Installation supervision

• Vibration analysis services

• Lubrication management programs

Conclusion

The SEW EURODRIVE R47 DRN90S4 gearmotor represents a significant advancement in mid-range drive technology, offering unparalleled performance characteristics for demanding industrial applications. Its combination of robust construction, energy-efficient operation, and smart technology integration makes it an ideal choice for modern manufacturing and processing facilities.

For operations requiring reliable power transmission with precise control, the R47 DRN90S4 delivers measurable improvements in productivity, energy savings, and total cost of ownership. Backed by SEW's global service network and technical expertise, this gearmotor provides not just superior engineering, but a complete drive solution tailored to today's industrial challenges.

SEW EURODRIVE - Powering Industrial Excellence Through Innovation