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EP-EQ4067 4-Stage Ultra-High Ratio Planetary Gearbox
Brevini Riduttori EQ4067 Compatible Replacement | EVER POWER
The EQ4-series achieves ratio ranges up to 500:1 in a single housing by stacking four planetary stages ?? the highest reduction option in the EC/EM family. Designed for very slow-speed drives, large industrial positioning systems, antenna and telescope slew drives, kiln and furnace car drives, and large-scale material handling applications where output speed is measured in RPM fractions and maximum torque is non-negotiable.
The EP-EQ4067 replaces the Brevini riduttori EQ4067 ?? a 4-stage planetary gearbox delivering approximately 16,800 Nm output torque, ratio range 50:1 – 500:1, and IP rating IP66.
Technical Parameters
| Parameter | Value |
|---|---|
| Model | EP-EQ4067 |
| Replaces | Brevini riduttori EQ4067 |
| Output Torque | 16,800 Nm |
| Gear Stages | 4 |
| Ratio Range | 50:1 – 500:1 |
| Max Input Speed | 3,000 rpm |
| Efficiency | >= 92% |
| Protection Class | IP66 |
| Approx. Weight | ~106 kg |
Working Principle
Four coaxial planetary stages cascade speed reduction and torque multiplication. Stage 1 handles the high-speed motor input; each successive stage multiplies torque while halving speed. The 4-stage design uses a dual-seal output shaft arrangement ?? a primary FKM lip seal plus a labyrinth ?? providing redundant protection against dust and slurry ingress in the slow-speed, high-torque industrial environments where EQ4 units are most commonly deployed.
Core Advantages
|
● Up to 500:1 Single Housing
Eliminates tandem gearbox arrangements for extreme ratios. |
● Dual-Seal Output Shaft
Primary FKM seal plus labyrinth ?? redundant ingress protection. |
|
● IP66 Standard Sealing
Outdoor and wet industrial environment rated. |
● 4-Stage Torque Density
Maximum torque for given housing size in the EC/EM range. |
|
● Direct EQ4-Series Replacement
Identical flange and port dimensions. |
Structure and Material Technology
All four stages use 17CrNiMo6 carburised and ground steel gears. Output stage planet journals run on needle roller bearings with hardened pins for maximum radial stiffness. The housing is cast from GGG50 ductile iron with H7 bore tolerances throughout. External coating is epoxy-chromate primer for C4 corrosion zone service.
Typical Application Scenarios
| Industry | Application | Key Benefit |
|---|---|---|
| Pumps | Large centrifugal pump drive | High-efficiency drive for continuous water/chemical pumping. |
| Fans | Industrial ventilation fan | Smooth starting torque for large-diameter fan impellers. |
| Conveyors | Heavy accumulation roller | High torque for dense product accumulation on roller bed. |
| Construction | Concrete mixer drum drive | Reliable drive for continuous concrete drum rotation. |
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 ?? 4-stage (4-stage) provides ratio 50:1 – 500:1.
- 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 EQ4067 vs. EVER POWER EP-EQ4067
Notice: EVER POWER references Brevini riduttori EQ4067 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EQ4067 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspect | Brevini EQ4067 | EVER POWER EP-EQ4067 |
|---|---|---|
| Price | OEM European premium | Competitive ?? 30-45% saving typical |
| Lead Time | 6-16 weeks depending on size | 2-6 weeks |
| Gear Stages | 4 | 4 |
| 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-EQ4067 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 |
|---|---|---|
| Australia | Conveyor head drive, iron ore processing | “Any-orientation mounting solved our inclined conveyor challenge without frame modification.” ?? Engineering Manager, Perth. |
| Norway | Marine auxiliary deck machinery, supply vessel | “IP66 sealing passed the vessel class inspection without modification.” ?? Chief Engineer, Bergen. |
| Canada | Chemical mixer drive, polymer plant | “Reliable operation over 14-month continuous duty. No seal or bearing failure.” ?? Plant Engineer, Montreal. |
Frequently Asked Questions
Q: What is the minimum output speed achievable?
A: With a 3,000 rpm input and the 500:1 maximum ratio, minimum output speed is 6 rpm. Lower speeds require a proportional reduction in input speed.
Q: Can the EQ4-series handle reversing loads?
A: Yes. All four stages are rated for equal forward and reverse torque. Fatigue life calculations assume 50/50 direction split.
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.
