Description
EP-GMSS40 — Stainless Steel Worm Gear Reducer Overview
Compact food and pharmaceutical drives that require full 304 stainless box construction — not just a stainless-coated or painted housing — with all six external faces precision-machined and electropolished to hospital-grade surface quality are served by the EP-GMSS40 Stainless Steel Worm Gear Reducer. As the entry-level full-size GMSS model, the GMSS40 accepts 63B5, 63B14, 71B5, and 71B14 IEC motor frames (0.06–0.18 kW), provides five mounting positions, and is available with A-type single shaft, B-type double shaft, and E-type torque arm output configurations. Its all-face-machined 304 SS housing with 304 SS wheel core distinguishes it clearly from the SSRV040 and SSVF40 as the premium-grade stainless option — specified for pharmaceutical vessel drives, cosmetics filling heads, bioprocess fermentation equipment, and hygienic machine tool applications where the highest surface standard and all-stainless internal materials are non-negotiable.
| Specification | Value |
|---|---|
| Model | EP-GMSS40 |
| 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, E-type torque arm |
| IEC Motor Frames | 63/71 IEC (B5 & B14) |
| Power Range | 0.06–0.18 kW |
Technical Specifications — EP-GMSS40
Technical Specification Summary
| Parameter | EP-GMSS40 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, E-type torque arm |
| IEC Motor Frames | 63/71 IEC (B5 & B14) |
| Power Range | 0.06–0.18 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
All-Six-Face Machined Box — Highest Hygienic Standard in Compact Stainless Worm
The GMSS40 six-face machined housing exceeds the surface cleanliness of the SSRV040/SSVF40 cast and selectively-machined alternatives. No unmachined cast-texture surfaces remain — every external area is Ra ≤ 0.8 µm electropolished 304 SS.
304 SS Wheel Core — All-Internal Stainless, No Ferrous Components
The worm wheel core is 304 SS. Combined with the tin-bronze wheel rim and 304 housing, all GMSS40 components are non-ferrous — critical for applications where oil analysis or FDA material approval is required.
Five Mounting Positions — Single Part Number Covers All Orientations
A (horizontal), B (double shaft), C (vertical shaft-down), D (flange mount), E (torque arm) — five configurations from one part number, simplifying machine documentation and spare-parts management for OEM builders.
Compact Square Box — Easier Integration Than Round-Housing Units
The GMSS box format integrates more simply into machine frames and enclosures than round-housing SSRV/SSVF variants. Flat machined faces bolt directly to machine plates without adaptor brackets.
Ratios 7.5–100:1 — Full Range, No Compromise for Premium Build
The GMSS40 provides the full 11-step ratio range identical to the SSRV040 and SSVF40, ensuring the premium GMSS construction requires no speed ratio compromise. Same motor flanges (63/71 IEC), same ratio steps, higher surface standard.
Industry Applications & Typical Use Cases
Pharmaceutical Manufacturing Equipment
GMP-validated vessel agitators, transfer conveyors, and blending drives in pharmaceutical plants specify the GMSS40 for all-stainless internal construction, cleanable box surfaces, and traceable 304 SS material certification for 21 CFR and EU GMP compliance.
Cosmetics & Perfume Production
Fragrance-filling machines, cream-blending drives, and packaging conveyors in cosmetics manufacturing use the GMSS40 for its premium appearance, alcohol-safe 304 housing, and quiet worm mesh in open-frame machine designs.
Confectionery & Chocolate Processing
Tempering unit drives and portion-depositing conveyors in chocolate production specify the GMSS40 for its clean-surface geometry with no external ribs or dead zones, and compatibility with regular steam and detergent washdown.
Light-Duty Hygienic OEM Drives
OEM machine builders in food-equipment and lab-equipment sectors specify the GMSS40 when the customer’s specification requires all-stainless construction beyond the usual SSRV series — for a premium that is justified by the application.
Bioprocess Fermentation Drives
Small-scale bioreactor agitator and fermentation vessel drives in bioprocess and cell-culture applications specify the GMSS40 for its 304 SS wheel core (no ferrous internal surfaces) and SIP-compatible stainless construction.
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-GMSS40 (63/71 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-GMSS40
⭐ Customer Reviews
“The GMSS40 replaced aluminium gearboxes on our GMP blending vessel drives. All-stainless box, all-face machined, 304 wheel core — it passed our validation documentation review first attempt. The premium box appearance is also appreciated by our clients during facility tours.”
Melissa Carter — Pharma Equipment Australia Pty
Australia 🇦🇺
“Specified on our fill-and-finish line conveyors. The all-six-face machined surface quality eliminates cleaning dead zones we had with cast-housing reducers. GMSS40 passes our internal EU GMP audit criteria without the additional documentation burden we previously faced.”
Antoine Moreau — Equipements Pharmaceutiques SA
France 🇫🇷
“Running on bioreactor agitator drives. 304 SS wheel core was a hard requirement for our validation. Smooth, quiet, and corrosion-free after 10 months. The five mounting positions are very practical for our diverse machine layouts.”
Asel Nurlanovna — Pharmaceutical Engineering Ltd
Kazakhstan 🇰🇿
🔗 Accessories & Related Products
304 SS B5/B14 motors in 63/71 IEC (B5 & B14) frames — direct bolt-on to EP-GMSS40.
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 0.06–0.18 kW reaction torques.
🏭 Manufacturing Facility
✉ Get a Quote for EP-GMSS40
Specify the highest hygienic standard in compact stainless worm drives. Contact Ever-power for GMSS40 material certificates, drawings, and competitive pricing.
✓ OEM enquiries welcome | ✓ Material certificates available | ✓ Full stainless motor-gearbox assemblies
