Description
EP-RPR2320 Planetary Gearbox
EVER POWER 2-Stage High-Torque Planetary Gearbox for Heavy Process Drives
The EP-RPR2320 enters the heavy process drive segment with 32,500 Nm output torque from a compact 2-stage design, replacing the Brevini riduttori RPR2320. Designed for heavy process machinery, large screw conveyors, extruder main drives, heavy-duty mixer drives and large fan systems, this unit maximises power transmission efficiency in high-power continuous-duty applications where energy operating costs dominate the total cost of ownership.
Technical Parameters
| Parameter | Value |
|---|---|
| Model | EP-RPR2320 |
| Replaces | Brevini riduttori RPR2320 |
| Max Output Torque | 32,500 Nm |
| Gear Stages | 2 |
| Ratio Range | 24:1 – 95:1 |
| Max Input Speed | 2,600 rpm |
| Protection Class | IP67 |
| Approx. Weight | ~88 kg |
Working Principle
Two large-module planetary stages operate at high torque and moderate speed. The precision-forged one-piece sun gear shaft eliminates the coupling joint used in assembled sun shaft designs ?? a common failure point under reversing torque loads in extruder applications. A torque limiter interface boss on the input housing flange accepts standard slip-type torque limiters for overload protection of the driven machine.
Core Advantages
|
▲ Integral Forged Sun Shaft
No coupling joint ?? eliminates the most common failure mode in reversing-torque applications. |
▲ Torque Limiter Interface Boss
Standard overload protection interface for downstream machinery protection. |
|
▲ GGG70 Maximum-Grade Housing
Highest stiffness cast iron ?? resists deflection under large-module gear forces. |
▲ 42CrMo4 Ring Gears
Through-hardened ring gear for maximum surface hardness and wear resistance. |
|
▲ Direct RPR2320 Replacement
Matching external dimensions ?? direct retrofit. |
Structure and Material Technology
Sun gear shafts are precision-forged from 42CrMo4 through-hardened steel ?? integral forging provides better fatigue life than separate shaft-and-gear assemblies. Planet gears use 18CrNiMo7-6 carburised steel, ground to DIN 5. Ring gears are 42CrMo4 through-hardened and bore-ground. Housing material is GGG70 nodular iron for maximum stiffness under large-module gear loading.
Typical Application Scenarios
| Industry | Application | Key Requirement |
|---|---|---|
| Extrusion | Extruder main drive, plastics processing | Integral forged sun shaft handles reversing torque loads during die change. |
| Cement | Screw conveyor head drive, raw meal | High-torque 2-stage drives large diameter auger at low RPM. |
| Chemical | Heavy mixer main drive, viscous products | 32,500 Nm handles startup torque of thick-product mixing at full load. |
| HVAC | Large axial fan main drive, power station | 2-stage efficiency minimises fan house heat load in constrained enclosure. |
Selection Guide
- Required Output Torque (Nm) ?? Confirm peak and continuous torque requirement with appropriate safety factor.
- Gear Ratio ?? Motor speed (rpm) divided by required output speed (rpm).
- Duty Cycle ?? Continuous S1 or intermittent S3/S6; affects thermal de-rating.
- Motor Interface ?? Flange type (SAE/ISO), shaft diameter, keyway or spline specification.
- Environment ?? IP class, ambient temperature, corrosion zone, orientation.
Contact our engineering team for a free application sizing review.
Brevini RPR2320 vs. EVER POWER EP-RPR2320
Important Notice: EVER POWER references the Brevini riduttori RPR2320 model number solely to assist customers in identifying a compatible replacement. We do not manufacture, sell, or claim any affiliation with Brevini. No trademarks or intellectual property of Brevini are reproduced or infringed. Our EP-RPR2320 is an independently designed and manufactured product that is dimensionally and functionally compatible.
| Aspect | Brevini RPR2320 | EVER POWER EP-RPR2320 |
|---|---|---|
| Price | OEM premium | Competitive |
| Lead Time | 8-16 weeks | 3-6 weeks |
| Sun Shaft | Assembled | Integral forged |
| Torque Limiter Boss | Not standard | Standard boss |
| Warranty | 12 months | 18 months |
EVER POWER also supplies matched electric and hydraulic motors for complete drive system packages. Enquire about motor pairing.
Quality Certifications and Service Commitment
- ISO 9001:2015 certified manufacturing and quality management.
- CE Marking ?? EU Machinery Directive 2006/42/EC compliant.
- 18-month warranty from shipment date on all EP-RPR2320 units.
- Technical response within 48 hours for field issues.
- Spare parts and seal kits stocked for rapid dispatch.
Learn more at EVER POWER About Us.
Case Studies ?? Engineer Field Notes
| Country | Application | Feedback |
|---|---|---|
| Germany | Extruder main drive replacement, plastics plant | “Integral forged sun shaft solved the recurring failure at the coupling joint we experienced every 8,000 hours with the previous assembled design. 18 months and no failure.” ?? Plant Engineer, Frankfurt. |
| India | Large screw conveyor, cement raw meal handling | “32,500 Nm handled the startup torque on our compacted meal auger without triggering the overload protection ?? something our previous 28,000 Nm unit could not manage.” ?? Process Engineer, Mumbai. |
| USA | Large axial fan, combined cycle power station | “2-stage efficiency was verified at 97.6% at rated load on our test rig. Within 0.1% of EVER POWER’s published data.” ?? Commissioning Engineer, Houston. |
Frequently Asked Questions
Q: What torque limiter types are compatible with the input boss?
A: The boss is dimensioned for standard friction-plate and shear-pin type torque limiters. Provide your torque limiter brand and model at order for dimensional confirmation.
Q: What is the reversing torque rating?
A: Rated output torque of 32,500 Nm applies equally in forward and reverse directions. Fatigue life assumes 50/50 direction split at rated torque.
Partner With EVER POWER
EVER POWER supports OEM machine builders, engineering contractors and maintenance teams worldwide. Browse our full replacement range, explore our manufacturing capabilities, or contact us today for a fast quotation. Visit planetary-gear-box.top for the complete EVER POWER portfolio.
