Deskripsi
EP-GMSS30 — Stainless Steel Worm Gear Reducer Overview
Miniature precision equipment — analytical instruments, laboratory dispensers, and micro-packaging machines — demands drives that are simultaneously compact, corrosion-free, and easy to clean to the highest surface standard. The EP-GMSS30 Stainless Steel Worm Gear Reducer answers this specification: a size-30, all-six-face precision-machined 304 stainless steel box housing, 12-2 tin-bronze worm wheel, 304 SS wheel core, and fully synthetic worm oil — the most compact model in the GMSS range. Unlike the SSRV and SSVF series where only functional surfaces are machined, the GMSS30 machines and electropolishes all six external faces to Ra ≤ 0.8 µm, meeting EHEDG and 3-A hygienic design principles. It accepts 48 and 56 IEC motor frames (0.04–0.09 kW) in five mounting positions (A/B/C/D/E), making it the standard selection for lab robots, medical device assembly, micro-conveyor drives, and GMP-validated equipment where every surface is subject to cleaning validation.
| Specification | Value |
|---|---|
| Model | EP-GMSS30 |
| 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 | 48/56 IEC |
| Power Range | 0.04–0.09 kW |
Technical Specifications — EP-GMSS30
Technical Specification Summary
| Parameter | EP-GMSS30 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 | 48/56 IEC |
| Power Range | 0.04–0.09 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 & Electropolished — Zero Dead-Zone Hygiene
Unlike cast-housing reducers where only mounting surfaces are machined, all six external faces of the GMSS30 are CNC precision-machined and electrolytically polished to Ra ≤ 0.8 µm — eliminating every bacteria-harbouring external surface.
304 SS Wheel Core — Full Internal Corrosion Resistance
The worm wheel core is 304 SS (not carbon steel as in SSRV/SSVF series). Combined with the tin-bronze wheel rim and 304 housing, all internal GMSS30 components are non-ferrous — critical for FDA material approval and oil-analysis validation.
Five Mounting Positions (A/B/C/D/E) — Maximum Installation Flexibility
The GMSS box supports five standard mounting positions, enabling the same unit to be installed horizontally, vertically, or wall-mounted without re-specifying the product, simplifying machine design for OEM builders.
Beautiful Premium Box Appearance — Specification-Worthy in Visible Installations
The all-face-machined and electropolished 304 box of the GMSS30 has a premium appearance appropriate for visible product-contact equipment, medical device cabinets, and open-frame analytical instruments.
48/56 Frame Compatibility — Smallest Fractional-Horsepower Stainless Drive
Compatible with 48 and 56 IEC motor frames (0.04–0.09 kW), the GMSS30 is the entry point for full 304 SS worm gear drives in sub-100W applications — a specification gap no SSRV or SSVF model fills.
Industry Applications & Typical Use Cases
Analytical & Laboratory Instruments
Precision auto-samplers, fraction collectors, and micro-pipetting robots require the quietest possible drive with full corrosion resistance. The GMSS30’s sub-65 dB(A) worm mesh and electropolished surfaces are specified for these demanding environments.
Medical Device Assembly
Syringe-barrel drives, infusion-pump gearboxes, and sample-prep robotics in medical device manufacturing need the smallest stainless gearbox available. The GMSS30 fits where no larger stainless unit can be accommodated.
Miniature Food Portioning Machines
Single-portion dispensers and micro-dosing systems in food and nutraceutical manufacturing use the GMSS30 for its fractional-horsepower capability and six-face-machined finish that eliminates cleaning dead zones.
Clean-Room Valve Actuators
Automated sampling valve actuators in clean-process pharmaceutical lines use the GMSS30 for its CIP/SIP-compatible 304 SS construction and low-noise operation in validated environments.
Precision Micro-Dosing & Metering
Micro-dispensing pumps and gravimetric dosing drives in cosmetics and fragrance manufacturing specify the GMSS30 for its consistent low-backlash worm drive and self-locking at ratios ≥ 30:1.
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-GMSS30 (48/56 IEC). 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-GMSS30
⭐ Customer Reviews
“Specified GMSS30 for our auto-sampler fraction-collector drives. The all-face-machined stainless box is the only option that passes our internal particle-emission audit. Quiet, precise, and completely corrosion-free in our daily IPA and DI-water clean-down environment. We’ve standardised this across all our lab-automation drives.”
Dr. Natalie Brooks — Analytical Instruments Pty Ltd
Australia 🇦🇺
“The GMSS30 is our standard for medical device assembly drives. All-internal-304 construction and premium stainless box appearance were mandatory for our device regulatory submission. Consistent dimensional quality across every batch — meets our tolerances first time, every time.”
Dr. Henrik Larsen — Medicinsk Udstyr A/S
Denmark 🇩🇰
“Running on cosmetics micro-dispensing pump drives. Sub-65 dB(A) mesh is critical in our lab environment. Self-locking at 40:1 eliminates brake mechanisms. Excellent product — would prefer a 316L housing option for our salt-acid environment in future.”
Kenji Nakamura — Seimitu Dosing Equipment KK
Japan 🇯🇵
🔗 Accessories & Related Products
304 SS B5/B14 motors in 48/56 IEC frames — direct bolt-on to EP-GMSS30.
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 0.04–0.09 kW reaction torques.
🏭 Manufacturing Facility
✉ Get a Quote for EP-GMSS30
For miniature hygienic drives with premium all-stainless construction, the EP-GMSS30 sets the benchmark. Contact Ever-power for specifications and samples.
✓ OEM enquiries welcome | ✓ Material certificates available | ✓ Full stainless motor-gearbox assemblies
