描述
EP-GMSS90 — Stainless Steel Worm Gear Reducer Overview
The most demanding hygienic drive applications — industrial washing machines, drum dryers, large chemical agitators, and high-torque food conveyors — require simultaneously the highest torque, widest motor compatibility, and most rigorous surface standard. The EP-GMSS90 Stainless Steel Worm Gear Reducer is the GMSS flagship: size-90, all-six-face precision-machined 304 SS box, 304 SS wheel core, 80–112 IEC motor compatibility, and up to 3 kW continuous input power. No other standard stainless worm reducer combines the GMSS90’s 3 kW capability with the all-six-face machined box standard and five mounting positions. It is the definitive specification for engineers who will not compromise on either drive power or hygienic construction quality.
| Specification | Value |
|---|---|
| Model | EP-GMSS90 |
| Housing | 304 SS — all 6 faces precision-machined, electropolished |
| Wheel | 12-2 tin bronze (ZCuSn12-2) rim, 304 SS core |
| Oil | Fully synthetic ISO VG 150 (H1 food-grade on request) |
| Ratios | 7.5–100:1 |
| Mounting Positions | A, B, C, D, E |
| Output Options | A-type single shaft, B-type double shaft, D-type output flange, E-type torque arm |
| IEC Motor Frames | 80/90/100/112 IEC (B5 & B14) |
| Power Range | 0.75–3 kW |
Technical Specifications — EP-GMSS90
Technical Specification Summary
| Parameter | EP-GMSS90 Specification |
|---|---|
| Housing Material | 304 SS — CNC-machined all 6 faces, electropolished Ra ≤ 0.8 µm |
| Worm Wheel | 12-2 tin bronze rim, 304 SS core — no ferrous internal components |
| Worm Shaft | Hardened alloy steel, carburised & ground, 55–60 HRC |
| Lubrication | Fully synthetic ISO VG 150 (H1 food-grade on request) |
| Mounting | 5 positions: A / B / C / D / E |
| Output Options | A-type single shaft, B-type double shaft, D-type output flange, E-type torque arm |
| IEC Motor Frames | 80/90/100/112 IEC (B5 & B14) |
| Power Range | 0.75–3 kW |
| Speed Ratios | 7.5–100:1 |
| Certifications | CE Marking, ISO 9001, FDA 21 CFR 177, EHEDG Compatible |
| Surface Finish | Ra ≤ 0.8 µm electropolished — all external faces |
| Ambient Temperature | -20°C to +50°C standard |
GMSS vs SSRV vs SSVF — Why Choose Box Series?
| Feature | GMSS (Box) | SSRV (RV Cast) | SSVF (VF Cast) |
|---|---|---|---|
| Faces Machined | All 6 | Functional only | Functional only |
| Wheel Core | 304 SS | Carbon steel | Carbon steel |
| Mounting Positions | 5 (A/B/C/D/E) | Foot/torque arm | Face-mount only |
| Surface Finish | Ra ≤ 0.8 µm all faces | Ra varies | Ra varies |
| Premium Appearance | Yes | No | Partial |
Core Features & Benefits
3 kW Continuous Input — Highest Power in GMSS Range
The GMSS90 accepts up to 3 kW continuous S1 duty from 100/112B5 or 100/112B14 motor flanges — the highest input power capability in the GMSS series, enabling the largest agitators, heaviest conveyors, and longest drum drives to specify the all-stainless GMSS box.
140 mm Housing Width — Flagship Box for Maximum Torque Density
The GMSS90 reaches 140 mm width to accommodate the size-90 worm gear pair. Despite this, it remains more compact in box format than equivalent torque cast-housing reducers, providing the best torque density in an all-stainless machined box.
All-Six-Face Machined 304 SS + 304 SS Wheel Core — Full Stainless at 3 kW
The GMSS90 maintains the full all-six-face machined and electropolished 304 SS standard at the 3 kW rating. No other standard stainless worm reducer at this power level offers the same all-face surface quality with internal 304 SS wheel core construction.
Output Torque Up to ~500 Nm at Ratio 100:1 / 3 kW
At 3 kW input and ratio 100:1, the GMSS90 delivers approximately 480–520 Nm — the highest continuous torque in the GMSS series, enabling large-diameter agitators and heavy-load conveyors to be directly driven from a standard stainless worm gearbox.
Five Mounting Positions at Maximum Power — No Orientation Constraints
Even at the 3 kW level, the GMSS90 supports all five standard mounting positions (A/B/C/D/E), ensuring the highest-power stainless box gearbox can be integrated into any machine geometry without orientation constraints.
Industry Applications & Typical Use Cases
Industrial Washing Machines & Tunnel Washers
Large tunnel washers running 24/7 in hot caustic and acid are among the most demanding environments for any drive. The GMSS90’s 3 kW capability, all-304 construction, and IP69K-upgradable sealing make it the standard for these applications.
Large Drum Dryers & Rotary Kilns
Slow-speed drum drives (2–10 rpm) in food drying, fertiliser, and mineral processing require very high continuous torque at high ratios. The GMSS90 at ratio 60–100:1 from a 2.2–3 kW motor delivers this in stainless box format.
Large Chemical Reactor Drives
1,000L+ batch chemical reactor agitators in specialty chemical, polymer, and adhesive production require slow-speed, high-torque drives with all-stainless internal construction. The GMSS90 is the standard selection for these applications.
Large-Scale Food & Beverage Processing
Large-format continuous cooking, mixing, and conveying equipment in food and beverage manufacturing specifies the GMSS90 for its 3 kW capability, stainless box durability, and multiple mounting configurations.
Wastewater Sludge Treatment
Heavy-duty sludge-scraper drives and slow-speed paddle mixer drives in wastewater treatment specify the GMSS90 for its corrosion resistance in chlorinated water and 3 kW continuous-duty capability.
Selection Guide, FAQ & Customer Reviews
GMSS Series Selection Guide
1. Define output torque (Nm) and output speed (rpm). 2. Calculate ratio = motor speed ÷ output speed. 3. Match motor frame to available IEC options for EP-GMSS90 (80/90/100/112 IEC (B5 & B14)). 4. Select mounting position (A/B/C/D/E). 5. Specify output type: A-shaft, B-double shaft, D-flange, or E-torque arm.
Certifications
❓ Frequently Asked Questions — EP-GMSS90
⭐ Customer Reviews
“GMSS90 is our flagship washdown drive specification. Two years of triple-shift operation in 85°C caustic tunnels — zero failures, zero surface degradation. The 3 kW / 100B5 configuration handles our heaviest tunnel loads at ratio 40:1. All-stainless box passes every hygiene audit. Exceptional product.”
Paul Hennessy — Industrial Washers & Conveyors Pty
Australia 🇦🇺
“Specified GMSS90 for our 2,000L reactor agitator drives. 3 kW / ratio 60:1 delivers the slow-speed torque we need. D-type flange output coupled directly to the reactor head — no coupling, no alignment error in 14 months of operation.”
Valentina Rossi — Impianti Chimici Industriali Srl
Italy 🇮🇹
“Using GMSS90 on drum-dryer drives at a remote mine site. All-stainless construction requires significantly less maintenance than cast-iron units. In a wet, corrosive, dusty environment, the GMSS box surfaces clean quickly. Very good product — improved English installation manual would make it 5 stars.”
Alinta Watson — Remote Mining Infrastructure Ltd
Australia 🇦🇺
🔗 Accessories & Related Products
304 SS B5/B14 motors in 80/90/100/112 IEC (B5 & B14) frames — direct bolt-on to EP-GMSS90.
304 SS single solid output shaft. Specify with PAM-IEC code at order.
304 SS double-ended shaft for encoder attachment or dual-load applications.
Direct vessel-head or machine flange coupling. Available GMSS50 and above.
304 SS torque arm for shaft-mount configurations. Rated for 0.75–3 kW reaction torques.
🏭 Manufacturing Facility
✉ Get a Quote for EP-GMSS90
For the ultimate in all-stainless hygienic heavy-process drives, the EP-GMSS90 is the specification. Contact Ever-power for FAT options, material certificates, and your quotation.
✓ OEM enquiries welcome | ✓ Material certificates available | ✓ Full stainless motor-gearbox assemblies
