Descripción
EP-EQ4090 4-Stage Ultra-High Ratio Planetary Gearbox
Brevini Riduttori EQ4090 Compatible Replacement | EVER POWER
El 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.
El EP-EQ4090 replaces the Brevini riduttori EQ4090 ?? a 4-stage planetary gearbox delivering approximately 28,000 Nm output torque, ratio range 50:1 – 500:1, and IP rating IP66.

Parámetros técnicos
| Parámetro | Valor |
|---|---|
| Modelo | EP-EQ4090 |
| Reemplaza | Brevini riduttori EQ4090 |
| Output Torque | 28,000 Nm |
| Etapas de engranajes | 4 |
| Rango de relación | 50:1 – 500:1 |
| Velocidad máxima de entrada | 3,000 rpm |
| Eficiencia | >= 92% |
| Clase de protección | IP66 |
| Peso aproximado | ~177 kg |
Principio de funcionamiento

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.
Ventajas principales
|
● 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. |
Estructura y tecnología de materiales

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 Hierro dúctil GGG50 with H7 bore tolerances throughout. External coating is epoxy-chromate primer for C4 corrosion zone service.
Escenarios de aplicación típicos
| Industria | Solicitud | Beneficio clave |
|---|---|---|
| Minería | Conveyor head drive, underground | Compact body fits restricted underground gallery dimensions. |
| Marine | Anchor handling winch assist | IP66 sealing for exposed deck anchor handling equipment. |
| Acero | Accionamiento de la mesa giratoria | Velocidad constante para la transferencia de barras laminadas en caliente entre los soportes del tren de laminación. |
| Cemento | Transportador de tornillo para harina cruda | High torque for dense raw meal material transport. |
Guía de selección
- Par de salida requerido (Nm) ?? Confirm peak and continuous with safety factor (1.3-2.0 typical).
- Relación de transmisión ?? Motor speed (rpm) / required output speed (rpm).
- Recuento de etapas ?? 4-stage (4-stage) provides ratio 50:1 – 500:1.
- Interfaz del motor ?? Flange type (SAE/ISO metric), shaft diameter and key.
- Entorno operativo ?? IP class, ambient temperature, mounting orientation.
Contact our engineers for a free application sizing review.
Brevini EQ4090 vs. EVER POWER EP-EQ4090
Notice: EVER POWER references Brevini riduttori EQ4090 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EQ4090 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspecto | Brevini EQ4090 | EVER POWER EP-EQ4090 |
|---|---|---|
| Precio | OEM European premium | Competitive ?? 30-45% saving typical |
| Plazo de entrega | 6-16 weeks depending on size | 2-6 weeks |
| Etapas de engranajes | 4 | 4 |
| Garantía | 12 meses estándar | 18 meses estándar |
| Personalización | Limited | Se aceptan diseños OEM/ODM. |

EVER POWER también suministra matched electric and hydraulic motors para paquetes completos de sistemas de accionamiento. Enquire about motor pairing.
Certificaciones de calidad y compromiso de servicio
- ISO 9001:2015 certified manufacturing and quality management.
- Marcado CE ?? EU Machinery Directive 2006/42/EC compliant.
- Garantía de 18 meses from shipment date covering all EP-EQ4090 manufacturing defects.
- 48-hour technical response for field issues.
- Seal kits and wear parts stocked for rapid dispatch.
Learn more at EVER POWER Acerca de nosotros.
Case Studies ?? Engineer Field Notes
| País | Solicitud | Comentarios de los clientes |
|---|---|---|
| China | Underground mining conveyor drive | “Compact body was critical in our restricted gallery. 3,000 hours with no issues.” ?? Mine Engineer, Shandong. |
| South Africa | Steel plant roll table drive | “Consistent roll speed improved bar surface quality significantly.” ?? Process Engineer, Johannesburg. |
| India | Accionamiento de transportador de tornillo de cemento, planta grande | “Cost saving over OEM allowed us to order a spare set as insurance stock.” ?? Procurement Director, Mumbai. |
Preguntas frecuentes
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.
Asóciate con 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.

