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EP-SSRV090 Stainless Steel Worm Gearbox — Product Overview
At the apex of Ever-power’s SSRV stainless steel worm gearbox series stands the EP-SSRV090 — the largest, most powerful, and most capable model in the line. With a 90 mm centre distance and a substantial 35 mm output shaft, the SSRV090 delivers the output torque and shaft load capacity of a large industrial gearbox in a fully hygienic, electrolytically polished 304 stainless steel housing. Large-scale meat and poultry processing plants use the SSRV090 on primary conveyor chain drives and portioning machine indexers where high torque and impeccable cleanability are simultaneously demanded by food safety regulations. The brewing and spirits industry relies on it for large fermentation tank agitator drives and grain conveyor systems where the combination of high sugar content, CO₂ atmosphere, and aggressive CIP creates a uniquely corrosive environment. Fully interchangeable with NMRV090 in mounting dimensions and motor flange geometry, enabling seamless upgrade from aluminium to full stainless without structural modification. The precision-cast 304 SS housing, 304 SS wheel core, 12-2 tin bronze worm gear, and fully synthetic oil deliver a comprehensive corrosion-resistant, low-maintenance drivetrain at the top of the compact worm gearbox category.
Technical Specifications & Dimensional Data
| Parameter | Value |
|---|---|
| Model | EP-SSRV090 |
| Centre Distance | 90 mm |
| Housing Material | 304 Stainless Steel (precision cast) |
| Wheel Core Material | 304 Stainless Steel |
| Worm Gear Material | 12-2 Tin Bronze |
| Lubricant | Fully Synthetic Worm Gear Oil |
| Surface Finish | Electrolytically Polished |
| Speed Ratios | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Input Flange (IEC) | 100/112B5, 100/112B14, 90B5, 90B14, 80B5, 80B14 |
| Output Shaft Diameter | 35 mm |
| L (single-side) | 234 mm |
| L1 (double-side) | 309 mm |
| Key Width b | 10 mm (M12×34) |
| Mounting Positions | Multi-directional |
| Interchangeable With | NMRV090 |
Output Shaft Dimensions (304 SS)
| d | B | B1 | G1 | L | L1 | f | b1 | t1 |
|---|---|---|---|---|---|---|---|---|
| 35 | 80 | 84.5 | 140 | 234 | 309 | M12×34 | 10 | 38 |
Output Flange Dimensions (..F)
| α1 | KA | KB | KC | KD | KM | KN | KP | KQ |
|---|---|---|---|---|---|---|---|---|
| 45° | 111 | 13 | 6 | 44 | 175 | 152 | 210 | 200 |
Torque Arm Dimensions (304 SS)
| K1 | G | KG | KH | R | B |
|---|---|---|---|---|---|
| 200 | 25 | 57.5 | 20 | 30 | 6 |
Core Features & Engineering Advantages
🏆 Highest Torque in the SSRV Series
The 90mm centre distance and 35mm output shaft with M12×34 key deliver the highest output torque in the compact SSRV family. For large-scale food processing conveyors, brewing agitators, and primary material-handling drives, the SSRV090 provides full industrial gearbox torque in a fully hygienic wash-down-ready stainless format.
📌 Largest Output Shaft in the Series
The 35mm shaft diameter (vs 28mm on SSRV075) provides meaningfully greater rigidity and radial load capacity — critical for chain sprocket and belt pulley applications where significant overhung loads are generated, common in primary food processing conveyor drives and brewing grain handling.
🆕 Complete Self-Locking Safety
At ratios ≥30:1 the SSRV090 exhibits inherent self-locking. For large primary conveyors carrying thousands of kilograms of product, this built-in safety eliminates costly motorised backstop devices and simplifies the machine safety architecture.
✅ Maximum Hygienic Performance
On the flagship SSRV090, the electrolytic polish achieves a surface finish meeting EHEDG and 3-A hygienic design guidelines — no microscopic crevices where biofilm or product residue can accumulate, with the highest possible cleanability for food plant primary drive machinery.
🔄 NMRV090 Drop-In Upgrade
Every mounting dimension — motor flange spigot, bolt-pattern footprint, output shaft position — is identical to the NMRV090. Upgrade from aluminium to full stainless during any planned maintenance window without machine structural modification.
Application Industries & Typical Use Cases
Large-scale meat and poultry processing plants are the signature application environment for the EP-SSRV090. Primary conveyor chain drives handling carcasses, automated portioning machine indexers, and marinating tumbler drives all require high torque output, the ability to withstand powerful foam and hot-water CIP cleaning up to 80°C, and full 304 SS material construction for food safety compliance. The brewing and distilling sector is another major market: large fermentation tank agitator drives, mash tun paddle drives, and grain handling belt conveyor heads in high-humidity, CO₂-rich environments are specified with SSRV090 because no other compact gearbox format delivers the same combination of torque, corrosion resistance, and compliance documentation.
🍳 Meat & Poultry Processing
Primary carcass conveyor chain drives, automated portioning machine indexers, tumbler and marinator drum drives. Withstands hot-water CIP at up to 80°C with caustic foam — the most aggressive routine cleaning in any food processing sector.
🍻 Brewing & Distilling
Large fermentation tank agitator top-entry drives, mash tun paddle stirrers, grain milling conveyor belt head drives. CO₂-rich, high-humidity environment with frequent caustic CIP uniquely handled by 304 SS construction.
🏭 Chemical & Reactor Processing
Reactor vessel agitator drives, chemical storage tank mixers, and viscous fluid transfer pump gearboxes in chemical processing plants. High torque handles viscous load resistance while 304 SS resists aggressive chemical atmospheres.
Selection Guide, Certifications & FAQ
Certifications
- ✓ ISO 9001:2015
- ✓ CE Marking
- ✓ RoHS Compliant
- ✓ FDA-Compatible Materials
- ✓ EHEDG-Compatible Surface Finish
- ✓ IP65
Q: Max output torque of SSRV090?
Highest in SSRV series. At ratio 80:1 with 1.5 kW motor, 300–400 N·m range achievable. Contact our team for precise torque data.
Q: Suitable for meat processing primary conveyors?
Yes — withstands 80°C hot-water CIP with caustic agents. Self-locking at ratios ≥30:1 prevents conveyor runback on power loss — critical safety requirement.
Q: Key size on SSRV090 output shaft?
M12×34 — the largest in the SSRV series. 10mm key width for secure coupling of heavy sprocket and chain drive overhung loads.
Q: Can be installed vertically input-down?
Yes — multi-directional mounting standard. Verify oil fill and vent for vertical orientation; factory pre-configuration available.
Q: SSRV090 shaft vs SSRV075?
35mm vs 28mm diameter — ~50% greater section modulus and significantly higher radial load capacity for large sprocket and chain drive applications.
Q: Suitable for brewing fermentation agitators?
Yes — 304 SS resists CO₂-rich fermentation atmosphere and caustic CIP chemicals. Multi-directional mounting supports top-entry agitator configurations.
Q: Output flange KQ dimension?
KQ=200mm, KA=111mm, α1=45° — the largest flange in the SSRV series for maximum torque shaft-mounted drives.
Customer Reviews
🇦🇺 Jack Thompson — Australia ⭐⭐⭐⭐⭐
“Six primary carcass conveyor drives in Brisbane poultry plant — three shifts daily, hot caustic foam every shift. 22 months: no corrosion, no leaks, no service calls.”
🇸🇪 Bjorn Eriksson — Sweden ⭐⭐⭐⭐⭐
“Swedish microbrewery fermentation tank agitators — IEC 112B5 for 2.2kW motors. 304 SS handles brewery atmosphere and CIP perfectly after 18 months.”
🇨🇳 Mei Chen — China ⭐⭐⭐⭐⭐
“Guangzhou pharmaceutical API plant reactor agitators — passes GMP surface inspection, compliance documentation straightforward. Now standardised across all agitator positions in this torque range.”
Accessories & Related Products
304 SS Output Shafts
d=35mm — largest in series. L=234mm (SS), L1=309mm (DS), M12×34 key. Maximum overhung load for heavy chain and belt drives.
Output Flange (..F)
KA=111mm, KQ=200mm, α1=45°. Largest flange in series for maximum torque shaft-mounted installations.
Torque Arm (304 SS)
K1=200mm, KG=57.5mm, R=30mm, B=6mm. Largest torque arm — proportioned for SSRV090 maximum output torque.
IEC 100/112 Motors
3-phase AC motors, IEC 100/112B5 & B14. 1.5–4 kW. Stainless motor casing option for full 304 SS drivetrain in meat processing and pharma.
🏆 The Most Capable Stainless Worm Gearbox in Its Class
The EP-SSRV090 is Ever-power’s flagship compact stainless worm gearbox — chosen by the world’s leading food processors, brewers, and pharmaceutical manufacturers when no compromise between torque and hygiene is acceptable.
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🏢 About Ever-power
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