Description
EP-SC4004 4-Stage High-Ratio Planetary Gearbox
Brevini Riduttori SC4004 Compatible Replacement | EVER POWER
When a Brevini SC4004 needs replacement, EVER POWER’s EP-SC4004 delivers a dimensionally compatible solution at a fraction of the OEM cost. This 4-stage high-ratio planetary gearbox produces approximately 4,000 Nm output torque from a sealed IP65-rated housing that installs directly into the original machine mounting without modification. Serving cement, mining, chemical, food processing, paper and marine auxiliary drive applications, the EP-SC4004 from EVER POWER offers a cost-effective alternative backed by ISO 9001:2015 quality management and CE certification.
Technical Parameters
| Parameter | Value |
|---|---|
| Model | EP-SC4004 |
| Replaces | Brevini riduttori SC4004 |
| Output Torque (approx.) | 4,000 Nm |
| Gear Stages | 4 |
| Ratio Range | 50:1 – 500:1 |
| Max Input Speed | 3,000 |
| Efficiency | >= 92% |
| Protection Class | IP65 |
| Approx. Weight | ~37 kg |
| Housing Material | Ductile Iron GGG50 |
| Lubrication | Synthetic ISO VG 220 (oil-bath, factory filled) |
| Operating Temp. | -25 degC to +80 degC |
| Output Interface | Hollow bore or solid shaft (specify at order) |
Working Principle
Inside the sealed, oil-bath lubricated housing of the EP-SC404, four cascading planetary stages convert the high-speed, low-torque motor input into a reduced-speed, high-torque output at the driven shaft. A floating sun gear arrangement between stages automatically centres the load distribution across all planet gear contacts, compensating for minor alignment errors between the motor shaft and the driven machine. This self-centering feature extends planet bearing life in long-service installations where perfect alignment cannot always be guaranteed.
Core Advantages
|
► 4,000 Nm Rated Torque
Full rated output torque for demanding continuous industrial duty cycles. |
● 4-stage Efficiency
Balanced efficiency and ratio range for the required application. |
|
▲ Brevini SC404 Direct Fit
Identical mounting dimensions — installs in original machine pocket without modification. |
◆ Oil-Bath Lubrication
Sealed oil-bath serves all mounting orientations — horizontal, vertical and inverted. |
|
◼ 18-Month Warranty
EVER POWER’s 18-month warranty exceeds the 12-month standard of most European OEM suppliers. |
Structure and Material Technology
Planet gears use 17CrNiMo6 carburised and profile-ground steel, providing superior fatigue life versus 20CrMnTi at equivalent case depth. Carburising is controlled to 0.8-1.1 mm with a core hardness of 30-38 HRC for impact resistance. The ring gear is 42CrMo4 through-hardened and bore-ground after hardening for dimensional stability. The planet carrier is a single-piece forged nodular iron construction, eliminating the flex found in welded split-type carriers. Output shaft seals are double-lip FKM for long life in synthetic oil service.
Typical Application Scenarios
| Industry | Application | Key Benefit |
|---|---|---|
| Food Processing | Filling and dosing conveyor | IP65 sealing withstands food-grade wash-down on external surfaces. |
| Pharmaceutical | Tablet press feed conveyor | Smooth vibration-free torque delivery for consistent tablet weight. |
| Textile | Warp beam let-off drive | Precise slow-speed torque control for consistent fabric tension. |
| Assembly | Rotary index table | Low backlash enables accurate workpiece positioning between stations. |
Selection Guide
- Required Output Torque (Nm) — Confirm peak and continuous torque with safety factor of 1.3-2.0.
- Gear Ratio — Motor speed (rpm) / required output speed (rpm). Range: 50:1 – 500:1.
- Stage Count — 4-stage provides ratio range 50:1 – 500:1. Higher stages = higher ratio and lower efficiency.
- Motor Interface — Flange type (SAE / IEC metric), shaft diameter and keyway.
- IP Rating — IP65 is standard. IP67/IP68 upgrade available for washdown or outdoor service.
- Mounting Orientation — Horizontal, vertical or inverted; all supported with standard oil-bath lubrication.
- Operating Temperature — Standard -25 to +80 degC; Arctic and high-temp variants available.
Not sure which configuration fits your machine? Send us your machine datasheet for a free engineering review.
Brevini SC4004 vs. EVER POWER EP-SC4004
Important Notice: EVER POWER references the Brevini riduttori SC4004 model number solely to assist customers in identifying a compatible replacement. We are not affiliated with, authorised by, or connected to Brevini. Our EP-SC4004 is an independently designed product that is dimensionally and functionally compatible with the original. No Brevini trademarks or intellectual property are reproduced or infringed.
| Aspect | Brevini SC4004 | EVER POWER EP-SC4004 |
|---|---|---|
| Price | OEM premium — Italian/European manufacturer | Competitive — typically 30-45% lower |
| Lead Time | 8-16 weeks typical | 3-6 weeks standard |
| Mounting Dimensions | Original Brevini SC4004 specification | Fully compatible — direct bolt-in |
| Stage Count | 4 | 4 |
| Gear Ratio Range | 50:1 – 500:1 | 50:1 – 500:1 |
| Warranty | 12 months standard | 18 months standard |
| Customisation | Limited aftermarket options | OEM/ODM drawings accepted |
EVER POWER also supplies matched electric motors, servo motors and hydraulic motors for complete drive system packages. Enquire about complete motor and gearbox packages.
Quality Certifications and Service Commitment
- ISO 9001:2015 certified manufacturing and quality management system.
- CE Marking — EU Machinery Directive 2006/42/EC compliant.
- 18-month warranty from shipment date on all EP-SC4004 units.
- 48-hour technical response for field installation and commissioning issues.
- Spare seal kits, planet sets and bearing kits stocked for rapid dispatch.
- Third-party inspection (DNV GL, Bureau Veritas, SGS) available on request.
Learn about our quality standards at EVER POWER About Us.
Case Studies — Engineer Field Notes
| Country | Application | Customer Feedback |
|---|---|---|
| France | Food conveyor drive replacement, dairy plant, 4 units | “IP65 sealing passed our EHEDG food hygiene wash-down test. No leaks after 12 months.” — Hygiene Manager, Lyon. |
| Australia | Pharmaceutical tablet press feeder drive | “Smooth torque delivery improved tablet weight consistency. FDA documentation supplied promptly.” — Quality Manager, Sydney. |
| South Korea | Warp beam let-off drive, textile mill, 8 units | “Consistent tension control improved fabric quality immediately. Lead time was 3 weeks versus 12 for Brevini.” — Production Manager, Busan. |
Frequently Asked Questions
Q: What is the minimum oil change interval?
A: With synthetic ISO VG 220 oil: first change at 500 hours, then every 2,500 hours or 12 months, whichever comes first. Lifetime lubrication is available as an option for sealed-for-life configurations in applications with limited maintenance access.
Q: What ambient temperature range is supported?
A: Standard range is -25 degC to +80 degC. A low-temperature variant with Arctic-grade PAO oil and cold-rated FKM seals is available for service below -25 degC. A high-temperature variant for up to +100 degC ambient is available on request.
Partner With EVER POWER
Whether you need a single emergency replacement for a failed Brevini SC4004 or a long-term supply arrangement for your equipment fleet, EVER POWER delivers reliable planetary gearbox solutions at competitive prices with faster delivery than European OEM suppliers.
Browse our full Brevini replacement range, visit planetarygearboxes.net for the complete product portfolio, or contact our engineering team today for a fast quotation.
