Beskrivning
EP-ET3320 3-Stage Standard Inline Planetary Gearbox
Brevini Riduttori ET3320 Compatible Replacement | EVER POWER
The ET3-series is EVER POWER’s workhorse 3-stage inline planetary gearbox, covering ratio ranges up to 200:1 in a single housing. It serves heavy conveyors, industrial hoists, mixer drives, extruder drives, pump drives and large fan systems where high torque multiplication is needed alongside consistent performance in continuous industrial duty cycles.
The EP-ET3320 replaces the Brevini riduttori ET3320 ?? a 3-stage inline planetary gearbox delivering approximately 92,000 Nm output torque, ratio range 20:1 – 200:1, and IP rating IP66.
Technical Parameters
| Parameter | Value |
|---|---|
| Model | EP-ET3320 |
| Replaces | Brevini riduttori ET3320 |
| Output Torque | 92,000 Nm |
| Gear Stages | 3 |
| Ratio Range | 20:1 – 200:1 |
| Max Input Speed | 4,000 rpm |
| Efficiency | >= 94% |
| Protection Class | IP66 |
| Approx. Weight | ~620 kg |
Working Principle
Three sequential planetary stages cascade torque multiplication. Stage 1 operates at the highest input speed with smallest module gears; stage 3 operates at the lowest speed with largest module gears and the highest torque. A one-piece forged planet carrier in the output stage eliminates the flex found in welded split-type carriers, ensuring even planet load distribution at peak torque. Oil-bath lubrication supports any mounting orientation without modification.
Core Advantages
|
◼ Up to 200:1 Ratio
3-stage covers slow-speed high-torque applications in one product. |
◼ Forged Output Carrier
One-piece construction ?? no weld-line flex at peak torque. |
|
◼ Any-Orientation Mounting
Oil-bath lube serves horizontal, vertical and inverted positions. |
◼ IP66 Sealing
Jet-water resistant ?? outdoor and marine auxiliary applications. |
|
◼ Direct ET3-Series Replacement
Matching flange and port layout. |
Structure and Material Technology
Output stage gears use 17CrNiMo6 or 18CrNiMo7-6 carburised steel depending on size, ground to DIN 5. Forged one-piece planet carriers are GGG50 nodular iron. Housing exterior carries epoxy primer + polyurethane topcoat (480h salt spray). Seals are FKM fluoroelastomer for synthetic oil at up to 120 degC.
Typical Application Scenarios
| Industry | Application | Key Benefit |
|---|---|---|
| Cement | Giant grinding mill main drive | Class-leading torque for the largest cement mill installations. |
| Steel | Primary metal reduction drive | Extreme duty cycle for continuous primary slab rolling. |
| Mining | Very large SAG/ball mill drive | Maximum torque for the largest mineral processing mills. |
| Marine | Large ship propulsion gearbox | High power transmission for large vessel main propulsion. |
Selection Guide
- Required Output Torque (Nm) ?? Confirm peak and continuous with safety factor (1.3-2.0 typical).
- Gear Ratio ?? Motor speed (rpm) / required output speed (rpm).
- Stage Count ?? 3-stage (3-stage inline) provides ratio 20:1 – 200:1.
- Motor Interface ?? Flange type (SAE/ISO metric), shaft diameter and key.
- Operating Environment ?? IP class, ambient temperature, mounting orientation.
Contact our engineers for a free application sizing review.
Brevini ET3320 vs. EVER POWER EP-ET3320
Notice: EVER POWER references Brevini riduttori ET3320 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-ET3320 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspect | Brevini ET3320 | EVER POWER EP-ET3320 |
|---|---|---|
| Price | OEM European premium | Competitive ?? 30-45% saving typical |
| Lead Time | 6-16 weeks depending on size | 2-6 weeks |
| Gear Stages | 3 | 3 |
| Warranty | 12 months standard | 18 months standard |
| Customisation | Limited | OEM/ODM drawings accepted |
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 covering all EP-ET3320 manufacturing defects.
- 48-hour technical response for field issues.
- Seal kits and wear parts stocked for rapid dispatch.
Learn more at EVER POWER About Us.
Case Studies ?? Engineer Field Notes
| Country | Application | Customer Feedback |
|---|---|---|
| Egypt | Giant grinding mill drive, large cement plant | “Maximum torque in class. CE and ISO documentation complete and accepted by our insurance auditor.” ?? Plant Director, Alexandria. |
| Japan | Primary steel rolling mill main drive | “Reversing torque fatigue life confirmed by material certificates. 2 years and zero gear failures.” ?? Engineering Manager, Osaka. |
| Brazil | Very large SAG mill drive, iron ore pellet plant | “EVER POWER application team sized the unit within 48 hours of receiving our mill drawing.” ?? Project Engineer, Belo Horizonte. |
Frequently Asked Questions
Q: Can the ET3-series be mounted in any orientation?
A: Yes. Oil-bath lubrication is effective in all orientations ?? horizontal, vertical shaft-up, vertical shaft-down, and inverted. No housing modification is required.
Q: What paint system is standard?
A: Epoxy primer + polyurethane topcoat, rated to 480 hours salt spray per ISO 9227. Upgraded marine C5M coating is available on request.
Partner With EVER POWER
EVER POWER supports OEM machine builders and maintenance teams worldwide. Browse our full replacement range, explore our capabilities, or contact us today for a fast quotation. Visit planetary-gear-box.top.
