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EP-SSGM50 Stainless Steel Worm Gear Reducer — Industrial Torque in a Hygienic Package
For plant engineers who have outgrown the size-40 frame but need to stay within a compact stainless steel footprint, the EP-SSGM50 delivers the answer. At 50mm center distance, this mid-range unit in Ever-power’s SSGM stainless steel series bridges the gap between compact and heavy-duty reducers — offering meaningfully higher output torque than the SSGM40 while accepting IEC B5 motors up to 100 frame, covering input powers commonly required in seafood processing lines, chemical agitator drives, and industrial-grade conveyor systems. The precision-cast 304 stainless steel housing, machined on all six faces, achieves a clean surface finish that resists aggressive acids, alkalis, and salt-spray environments. Unlike the SSGM30 and SSGM40 which are optimised for compact machine cavities, the EP-SSGM50 is the preferred choice when production throughput demands push motor power above 1.5 kW and the application still requires full corrosion immunity from daily high-pressure washdown protocols.
⚙ Technical Specifications — EP-SSGM50
| Tham số | Thông số kỹ thuật |
|---|---|
| Model | EP-SSGM50 |
| Vật liệu xây nhà | 304 Stainless Steel — precision cast, all 6 sides machined |
| Worm Gear Material | 12-2 Tin Bronze |
| Wheel Core Material | 304 Stainless Steel |
| Lubricant | Fully Synthetic Worm Gear Oil |
| Center Distance | 50 mm |
| Available Reduction Ratios | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Motor Flange Options | 63B5 / 71B5 / 80B5 / 90B5 / 100B5 |
| Output Shaft Configurations | A (single solid), B (single solid alt), D (protective cover), E (torque arm), Output Flange |
| Output Shaft Hole Diameter | 15 – 50 mm (ratio dependent) |
| Mounting Positions | Any position (universal mounting) |
| Protection Rating | IP65 (washdown-ready) |
| Operating Temperature | -10°C to +90°C |
| Series | SSGM — Stainless Steel Worm Gear Reducer |
| Motor Flange | D (mm) | M (mm) | P (mm) | d (mm) | BH | BU | E |
|---|---|---|---|---|---|---|---|
| 63B5 | 65 | 100 | – | 6.6 | 21.8 | 4 | 5 |
| 71B5 | 85 | 115 | – | 6.6 | 21.8 | 5 | 6 |
| 80B5 | 100 | 130 | 165 | 9 | 21.8 | 6 | 6 |
| 90B5 | 115 | 140 | 185 | 11 | 21.8 | 6 | 6 |
| 100B5 | 130 | 165 | 215 | 11 | 21.8 | 6 | 6 |
✓ Core Features & Engineering Advantages
📈 Substantial Torque Step-Up from Size-40
Moving from 40mm to 50mm center distance produces approximately 2.3× the output torque at the same input power. This makes the EP-SSGM50 the natural selection when seafood conveyor belts, mixing paddle shafts, or heavy bottle rinser carousels overload the SSGM40 — delivering the drive force needed to keep high-production lines running continuously without thermal tripping.
🌶 Salt-Spray & Acid-Wash Immunity
Coastal seafood processing plants and marine equipment installations routinely destroy standard painted cast-iron gearboxes within 12 months. The EP-SSGM50’s 304 SS housing and stainless wheel core provide genuine salt-spray resistance — passing ASTM B117 salt-fog testing far beyond what zinc-phosphate-coated alternatives can achieve. Zero paint, zero rust, zero replacement cycles driven by corrosion.
⚡ IEC 100 Frame Motor Compatibility
The EP-SSGM50 is the first model in the SSGM series to accept IEC frame 100 B5 motors, unlocking input powers up to approximately 2.2 kW. For drives currently running on 1.1–1.5 kW motors with marginal torque headroom, this single frame size expansion eliminates the need to step up to a larger gearbox body — saving cost and installation space.
🔌 Low-Speed Precision at 100:1 Single Stage
Single-stage 100:1 reduction brings a standard 1400 RPM motor down to 14 RPM output — without a two-stage gearbox. For slow-moving conveyor indexers, valve actuators, and mixing scrapers where precise low-speed control is critical, the EP-SSGM50 at 100:1 delivers smooth, repeatable output with the self-locking security needed for controlled-stop applications.
🔨 Output Flange & Torque Arm Mounting
Beyond standard solid shaft outputs, the EP-SSGM50 supports output flange mounting for hollow-bore coaxial integration and Type E torque arm for floating-motor installations. These configurations are critical for chemical drum rotators, agitator shaft couplings, and conveyor head drum installations where a rigid-mount solid shaft is impractical or undesirable.
🏢 Application Industries & Typical Use Cases
🍽 Seafood & Meat Processing
Seafood and poultry processing plants operate in the most aggressive washdown conditions of any food industry. High-pressure salt-water rinses, peracetic acid sanitation cycles, and constant humidity demand gearboxes that survive without corrosion. The EP-SSGM50 drives de-heading machine conveyors, grading belt drives, freezer tunnel chain drives, and IQF conveyor belt tensioners with a corrosion-immune 304 SS housing that passes daily USDA wash inspection requirements.
💧 Chemical & Petrochemical Processing
Chemical reactor feeds, acid transfer conveyor scrapers, and solvent dosing systems require drive components that will not introduce contamination or corrode under chemical exposure. The EP-SSGM50 is specified by chemical plant engineers for paddle mixer drives, drum rotator actuators, pH-dosing pump gearheads, and agitator shaft reducers where 304 SS is the minimum corrosion-resistance standard.
🏭 Industrial Washdown Manufacturing
General manufacturing plants with washdown zones — battery production, electronics rinsing lines, automotive paint washing conveyors — benefit from the EP-SSGM50’s IP65 rating and stainless construction. It drives spray-wash conveyor belt heads, immersion tank transfer drives, and rinse-tunnel indexers in environments where standard gearboxes corrode prematurely and cause unplanned downtime.
📹 Pharmaceutical Bulk Production
API (Active Pharmaceutical Ingredient) manufacturing facilities demand drives with traceable material certifications and no contamination risk. The EP-SSGM50 supports powder blender rotation drives, granulator feed screws, tablet press feeder actuators, and fluid bed dryer agitators with documented 304 SS material traceability and synthetic oil compliance for GMP production environments.
📚 Selection Guide, Certifications & FAQ
Selecting the Right EP-SSGM50 Configuration for Your Process
When upgrading from an SSGM40 or replacing a failing cast-iron size-50 unit, start by confirming your load torque exceeds the SSGM40 rating at your chosen ratio. The SSGM50’s torque capacity at equivalent ratios is approximately 2.3× the SSGM40 — making it the correct next step without over-engineering. For seafood or marine environments, specify the standard unit with no additional coating — 304 SS needs no surface treatment. For chemical plant applications with specific media compatibility questions (e.g. concentrated sulfuric acid above 70%), consult our team about 316L stainless upgrade availability. Match motor IEC frame 63–100 to your required input power. For applications requiring VFD speed control, confirm the motor’s inverter-duty rating before pairing with the EP-SSGM50. Email [email protected] with your duty cycle, ambient temperature, and installation orientation for a complete sizing recommendation.
✅ Certifications & Quality Standards
✓ ISO 9001:2015
✓ USDA-Compatible Materials
✓ RoHS Compliant
✓ IP65 Protection
✓ 304 SS Material Traceability
❓ Frequently Asked Questions — EP-SSGM50
Why choose the EP-SSGM50 over the SSGM40 for seafood processing lines?
The EP-SSGM50 offers approximately 2.3× the output torque of the SSGM40 at equivalent input power, which is decisive for seafood conveyor drives that handle heavy wet product loads and frequent start-stop cycling. Additionally, the SSGM50’s compatibility with IEC frame 100 motors means you can step up motor power from 1.5 kW to 2.2 kW without changing gearbox size — a significant flexibility advantage when throughput grows. Both models share identical 304 SS corrosion resistance, so the selection is purely a torque-capacity decision.
Is 304 stainless steel sufficient for chemical processing environments?
304 SS resists a wide range of chemicals including dilute acids, alkalis, alcohols, and most food-processing cleaning agents (caustic soda, peracetic acid, citric acid). It is appropriate for the majority of chemical processing conveyor and agitator drive applications. However, concentrated hydrochloric acid, sulfuric acid above 60%, or chloride-rich environments above 60°C may require 316L stainless steel, which offers superior pitting corrosion resistance. Contact our engineering team if your chemical media list includes these agents — we can advise on material upgrade options.
What output shaft diameters are available on the EP-SSGM50?
Output shaft hole diameters on the EP-SSGM50 range from 15mm to 50mm depending on the selected reduction ratio. Lower ratios (5:1–15:1) use larger output shaft diameters to accommodate the higher torque transmitted, while higher ratios (50:1–100:1) use smaller shaft diameters reflecting lower output speed applications. Standard keyways per DIN 6885 are machined on all solid output shafts. Custom shaft diameters or splined outputs are available for OEM batch orders — contact us with your shaft specification.
Can the EP-SSGM50 be used with a VFD (variable frequency drive)?
Yes, the EP-SSGM50 is fully compatible with VFD-controlled inverter-duty motors. When operating at reduced speed via VFD, verify that the motor’s forced cooling is adequate at low frequencies, as self-cooling fan effectiveness decreases below 25 Hz on standard motors — consider motors with separate cooling fans for continuous low-speed operation. The gearbox itself has no electronic components and is not affected by VFD switching. Confirm the VFD’s peak torque output does not exceed the gearbox’s rated input torque during acceleration ramps.
How often does the EP-SSGM50 require oil changes?
The EP-SSGM50 uses a fully synthetic worm gear oil with extended service intervals compared to mineral oil. Under normal continuous operating conditions (ambient temperature 20–40°C, load factor ≤ 1.0), the synthetic oil is rated for approximately 10,000 operating hours or 2 years, whichever comes first. In high-temperature environments above 60°C ambient or with high duty cycles above 80%, reduce the interval to 5,000 hours. First oil change is recommended at 500 hours to flush any break-in metallic particles from the worm gear bedding-in period.
Does the EP-SSGM50 comply with ATEX requirements for hazardous areas?
The standard EP-SSGM50 gearbox is not ATEX-certified as a standalone unit, as gearbox housings are generally not classified as ignition sources. For ATEX Zone 1 or Zone 2 installations, the critical certification applies to the motor — pairing an ATEX-rated Ex d or Ex e motor with the EP-SSGM50 is the standard approach for chemical plant installations in classified hazardous areas. Consult your local ATEX notified body for zone classification and motor selection requirements specific to your installation site.
⭐ Customer Reviews
Mark Thornton — Seafood Processing Plant Manager
Australia 🇦🇺 ★★★★★ 5.0
“Our prawn processing facility on the coast was destroying cast-iron gearboxes every 10 months due to the salt air and constant hosing. We switched our de-heading conveyor drives to EP-SSGM50 units two years ago and have had zero corrosion issues since. The torque headroom at 20:1 ratio handles our heaviest throughput days without thermal shutdown. Solid investment.”
Hiroshi Yamamoto — Chemical Plant Engineer
Japan 🇯🇵 ★★★★★ 5.0
“Specified EP-SSGM50 units for our phosphoric acid transfer conveyor scraper drives. The 304 SS construction has held up well through 18 months of acid vapour exposure. Self-locking at 50:1 eliminates the back-drive risk on our inclined screw conveyor sections. Documentation and dimensional accuracy met our strict procurement standards.”
Pieter van der Berg — Pharmaceutical Equipment Integrator
Netherlands 🇳🇱 ★★★★☆ 4.5
“Used EP-SSGM50 in a pharmaceutical powder granulator drive for an API production line. Material certificates for the 304 SS housing were provided promptly and satisfied our GMP documentation requirements. The synthetic oil is compatible with our cleanroom protocols. Took off half a star because longer shaft variants needed a 3-week wait, but quality is excellent.”
🔗 Related Products & Compatible Accessories
⚡ Compatible IEC Motors
○ IEC Frame 63 B5 Single/Three-Phase AC Motor (0.12–0.18 kW)
○ IEC Frame 71 B5 Three-Phase AC Motor (0.25–0.55 kW)
○ IEC Frame 80 B5 Three-Phase AC Motor (0.55–0.75 kW)
○ IEC Frame 90 B5 Three-Phase AC Motor (0.75–1.5 kW)
○ IEC Frame 100 B5 Three-Phase AC Motor (1.5–2.2 kW)
○ ATEX-rated Ex d/Ex e motors for hazardous area installations
🔧 Optional Accessories
○ Output Flanges — B5/B14 stainless flanges for coaxial hollow-bore mounting
○ Single/Double Solid Output Shafts — DIN 6885 keyway, SS316L optional
○ Torque Arms (Type E) — heavy-duty stainless reaction bracket
○ Protective End Cover (Type D) — IP65 sealed cover
○ Extended-shaft seals — IP66/IP67 for high-wash environments
○ 316L Stainless upgrade housing — for aggressive chemical media
Source EP-SSGM50 for Your Industrial Washdown Drive Project
Ever-power supplies the EP-SSGM50 to global OEMs, systems integrators, and distributors with full technical documentation, material certificates, and engineering support. Competitive pricing for volume orders. Partnership and distribution opportunities welcome.
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🏭 About Ever-power
✉ [email protected] | Distributor & OEM Enquiries Welcome
