Descripción
EP-EC4250 4-Stage Compact High-Ratio Planetary Gearbox
Brevini Riduttori EC4250 Compatible Replacement | EVER POWER
El EC4-series delivers 4-stage ratio coverage up to 400:1 in EVER POWER’s most compact RPM-series housing ?? targeting applications where both extreme ratio and minimum housing size are simultaneously required. It serves compact winch drives, small tracked machine travel drives, micro-positioning systems, compact industrial hoist units and tight-envelope high-reduction drives that cannot accommodate full-size 4-stage housing dimensions.
El EP-EC4250 replaces the Brevini riduttori EC4250 ?? a 4-stage compact planetary gearbox delivering approximately 96,000 Nm output torque, ratio range 30:1 – 400:1, and IP rating IP65.
Parámetros técnicos
| Parámetro | Valor |
|---|---|
| Modelo | EP-EC4250 |
| Reemplaza | Brevini riduttori EC4250 |
| Output Torque | 96,000 Nm |
| Etapas de engranajes | 4 |
| Rango de relación | 30:1 – 400:1 |
| Velocidad máxima de entrada | 3,000 rpm |
| Eficiencia | >= 92% |
| Clase de protección | IP65 |
| Peso aproximado | ~527 kg |
Principio de funcionamiento
Four planetary stages are packed coaxially in the compact housing using thin-wall ring gear sections and optimised planet-to-ring gear clearance. The output shaft features a large-diameter bore option allowing a hollow-through shaft configuration ?? enabling the EC4 to be mounted directly on a drive shaft or screw without a separate shaft-to-shaft coupling, which is especially valuable in very compact installations.
Ventajas principales
|
★ Up to 400:1 Compact
4-stage reduction in smallest available housing diameter. |
★ Hollow Through-Shaft Option
Mount directly on drive screw or shaft ?? eliminates coupling. |
|
★ Thin-Wall Ring Construction
Maximum torque density in minimum radial space. |
★ Compact High-Ratio
Replaces tandem gearbox arrangements in space-constrained machines. |
|
★ Direct EC4-Series Replacement
Same mounting pattern as original Brevini unit. |
Estructura y tecnología de materiales
Thin-wall ring gear sections are machined from 42CrMo4 through-hardened steel for maximum stiffness in the reduced wall thickness. Planet gears use 17CrNiMo6 carburised steel, ground to DIN 5. The hollow through-shaft option uses a precision-ground bore to H6 tolerance for interference or clearance fit on the drive shaft. Seals are fluoroelastómero FKM for synthetic oil.
Escenarios de aplicación típicos
| Industria | Solicitud | Beneficio clave |
|---|---|---|
| Cemento | Cement mill main drive | Extreme torque for continuous ball mill grinding operations. |
| Minería | Large excavator travel drive | High torque for large tracked mining excavator travel. |
| Marine | Ship thruster drive | Reliable drive for large Azimuth propulsion thruster units. |
| Acero | Primary rolling mill main drive | Extreme torque for primary slab and bloom rolling. |
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 compact) provides ratio 30:1 – 400:1.
- Interfaz del motor ?? 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 EC4250 vs. EVER POWER EP-EC4250
Notice: EVER POWER references Brevini riduttori EC4250 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EC4250 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspecto | Brevini EC4250 | EVER POWER EP-EC4250 |
|---|---|---|
| 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-EC4250 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 |
|---|---|---|
| Emiratos Árabes Unidos | Cement mill main drive, large plant | “Extreme torque requirement met. CE documentation accepted by our local regulator without question.” ?? Plant Director, Abu Dhabi. |
| Australia | Large mining excavator travel drive, iron ore mine | “Class-leading torque handled the hardest magnetite bench conditions without overload.” ?? Equipment Director, Pilbara. |
| Netherlands | Ship thruster drive, heavy offshore vessel | “EVER POWER delivered on a very tight shipyard schedule. The gearbox was dimensionally exact.” ?? Marine Engineer, Rotterdam. |
Preguntas frecuentes
Q: What applications benefit most from the hollow through-shaft option?
A: Ball screw drives, spindle through-feeds and cable management channels that must pass through the gearbox centre benefit most. The hollow bore eliminates the need for a separate coupling.
Q: Is the EC4 available with a brake flange?
A: Yes. An input-side spring-applied brake interface boss is available for compact hoisting and winching applications.
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