Description
EP-GMSS75 — Stainless Steel Worm Gear Reducer Overview
High-power hygienic drive applications — large-vessel agitators, industrial washing-machine drives, and drum-dryer conveyors — that specify up to 1.5 kW input power with 100/112 IEC motor frames, all-six-face machined GMSS box construction, and full 304 SS internal specification are served by the EP-GMSS75 Stainless Steel Worm Gear Reducer. As the second-largest GMSS model, the GMSS75 steps up from the GMSS63’s 0.75 kW ceiling to 1.5 kW continuous duty by adding 100/112B5 and 100/112B14 motor flange compatibility. This power step opens the GMSS75 to large-format food processing, heavy pharmaceutical processing, and industrial chemical applications where the combination of 1.5 kW motor drive, stainless all-face-machined box, and multi-position mounting flexibility is the engineering specification.
| Specification | Value |
|---|---|
| Model | EP-GMSS75 |
| 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 | 0.37–1.5 kW |
Technical Specifications — EP-GMSS75
Technical Specification Summary
| Parameter | EP-GMSS75 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 | 0.37–1.5 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
100/112 IEC Frame Support — 1.5 kW Continuous Capability
The GMSS75 adds 100/112B5 and 100/112B14 motor flange options, raising maximum continuous input power from 0.75 kW (GMSS63) to 1.5 kW — the highest-power all-six-face machined GMSS model before the flagship GMSS90.
120 mm Housing Width — Heavy-Duty Box for 1.5 kW
The GMSS75 housing is widened to 120 mm to accommodate the larger worm gear pair required for 1.5 kW. Despite this, the box format remains significantly more compact than an equivalent cast RV-housing reducer of the same power rating.
All-Six-Face Machined 304 SS — Maintained at Full 1.5 kW Rating
The all-six-face electropolished 304 SS construction of the GMSS75 is identical in quality standard to smaller GMSS models. There is no reduction in surface quality as power rating increases through the GMSS range.
E-Type Torque Arm — Rated for 1.5 kW Reaction Torques
The E-type torque arm for GMSS75 is dimensioned for higher reaction torques generated at 1.5 kW input, providing robust shaft-mount capability for heavy conveyor and agitator applications without a foot-mount bracket.
D-Type Output Flange — Direct Vessel Coupling at 1.5 kW
The D-type output flange option enables direct coupling to large agitator vessel heads (500L+) without shaft couplings, at the full 1.5 kW motor power rating — the most demanding direct vessel-drive application in the GMSS range.
Industry Applications & Typical Use Cases
Large-Batch Pharmaceutical Manufacturing
Large-batch blending vessels (500L+) in solid-dose pharmaceutical manufacturing require 0.75–1.5 kW gear drives with all-stainless construction and full material traceability. The GMSS75 provides 100/112 motor compatibility and complete 304 SS construction.
Industrial Washing Machine Drives
Tunnel washers and industrial dishwasher conveyor drives running three shifts in hot caustic/acid environments require stainless drives with the highest surface cleanliness. The GMSS75’s all-face-machined box and 1.5 kW capability handle both the load and chemical regime.
Large OEM Hygienic Machine Drives
OEM machine builders specifying 1.5 kW stainless box gearboxes for premium food, pharmaceutical, and chemical processing equipment use the GMSS75 as their standard heavy-duty hygienic drive unit.
Chemical Process Equipment
Batch chemical reactors (200–1000L), agitated filter-dryers, and slow-speed blending vessels in specialty-chemical manufacturing specify the GMSS75 for its 1.5 kW handling, self-locking at high ratios, and all-304 SS construction.
Pet Food & Animal Feed Processing
High-volume pet-food extruder-feeder drives and tumble-drum seasoning drives specify the GMSS75 for its ability to handle 1.5 kW continuously in the high-fat, high-moisture environments typical of these applications.
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-GMSS75 (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-GMSS75
⭐ Customer Reviews
“GMSS75 on our large-batch bread-dough mixer drives at 1.1 kW, ratio 40:1. All-stainless box handled our daily steam cleaning at 90°C without any degradation. The 100B5 motor option was exactly what our machine design called for. Best hygiene-grade drive we have used at this power level.”
Mark Patterson — Food Processing Solutions Pty
Australia 🇦🇺
“Specified on our specialty chemical reactor agitators (200L vessels). The 1.5 kW power rating with 304 SS box and all-stainless internals passed our internal material approval process first attempt. D-type flange output to the vessel head — no coupling misalignment in 14 months of operation.”
Dr. Markus Hoffmann — Chemische Verfahrenstechnik GmbH
Germany 🇩🇪
“Running on pet-food tumble-drum drives. The 100/112 motor flange and 1.5 kW rating gave us the torque for our heavy drum loads. All-stainless box handles fat and moisture environment without surface issues. Good product — would like factory pre-test documentation included as standard.”
Fernanda Lima — Industria Alimenticia Ltda
Brazil 🇧🇷
🔗 Accessories & Related Products
304 SS B5/B14 motors in 80/90/100/112 IEC (B5 & B14) frames — direct bolt-on to EP-GMSS75.
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 0.37–1.5 kW reaction torques.
🏭 Manufacturing Facility
✉ Get a Quote for EP-GMSS75
1.5 kW all-stainless box gearbox — the EP-GMSS75 sets the standard for heavy-duty hygienic drives. Contact Ever-power for technical drawings, material certs, and pricing.
✓ OEM enquiries welcome | ✓ Material certificates available | ✓ Full stainless motor-gearbox assemblies
