Descrizione
EP-SSGM75 Stainless Steel Worm Gear Reducer — High-Torque Drive for Demanding Corrosive Environments
When large industrial processes demand both high output torque and the uncompromising corrosion resistance of stainless steel construction, the EP-SSGM75 is the specification solution. Positioned as the second-largest unit in Ever-power’s SSGM series, this 75mm center distance reducer bridges the gap between the mid-range SSGM63 and the flagship SSGM90 — delivering high torque output while still fitting within the machine envelope constraints that rule out the full-size SSGM90. Sugar refinery transfer conveyors, large industrial tank agitator drives, pulp and paper mill washdown drives, and heavy-duty aquaculture cage rotation systems are all application categories where the EP-SSGM75 provides the torque density and corrosion immunity that neither a smaller stainless reducer nor a larger painted cast-iron unit can deliver. The precision-cast 304 stainless steel housing, machined to close tolerances on all six faces, eliminates the corrosion initiation sites that characterize rough-cast surfaces, while the 12-2 tin bronze worm wheel ensures efficient, low-noise torque transfer across the full ratio range from 5:1 to 100:1. Fully synthetic worm gear oil provides extended service intervals that reduce maintenance costs in remote or difficult-access installation locations.
⚙ Technical Specifications — EP-SSGM75
| Parameter | Specification |
|---|---|
| Model | EP-SSGM75 |
| Housing Material | 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 | 75 mm |
| Available Reduction Ratios | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Motor Flange Options | 80B5 / 90B5 / 100B5 / 112B5 / 132B5 |
| Output Shaft Configurations | A (single solid), B (single solid alt), D (protective cover), E (torque arm), Output Flange |
| Output Shaft Hole Diameter | 25 – 75 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 |
|---|---|---|---|---|---|---|---|
| 80B5 | 100 | 130 | 165 | 9 | 31.3 | 8 | 8 |
| 90B5 | 115 | 140 | 185 | 11 | 31.3 | 8 | 8 |
| 100B5 | 130 | 165 | 215 | 11 | 31.3 | 8 | 8 |
| 112B5 | 130 | 165 | 265 | 11 | 31.3 | 8 | 8 |
| 132B5 | 130 | 165 | 300 | 11 | 31.3 | 8 | 8 |
✓ Core Features & Engineering Advantages
📈 IEC 132 Frame Motor Compatibility — Up to ~7.5 kW Input
The EP-SSGM75 accepts IEC B5 motors through frame 132, the largest motor frame in the SSGM series apart from the SSGM90. This unlocks input powers up to approximately 7.5 kW — meeting the demands of large industrial conveyor drives, heavy agitator shafts, and high-capacity processing machinery that outgrow the SSGM63’s motor range while remaining within a stainless steel housing specification.
⚠ Heavy-Load Self-Locking at High Ratios
For large gate valves, sluice gates, and heavy vertical-load mechanisms, the EP-SSGM75’s inherent self-locking at ratios ≥ 30:1 provides reliable load holding under the higher static loads typical of size-75 applications — loads that would require substantial electromagnetic braking if a non-locking reducer were specified. This characteristic is especially valued in water infrastructure and marine gate control applications.
🏭 Large Output Shaft Diameter — Up to 75 mm
With output shaft hole diameters up to 75mm, the EP-SSGM75 directly interfaces with the heavy driven shafts of industrial mixing equipment, large conveyor drum hubs, and agitator stub shafts that simply cannot connect to smaller reducers. This eliminates the need for reduction adapters or intermediate couplings that add alignment complexity and potential failure points to the drivetrain.
🌶 Pulp, Paper & Sugar Industry Proven
Pulp and paper mills and sugar refineries operate washdown conveyors and transfer drives in permanently wet, chemically aggressive environments with high pH cleaning agents and organic acids. The EP-SSGM75’s 304 SS construction withstands these conditions indefinitely, eliminating the accelerated corrosion and bearing failure cycles that plague standard painted cast-iron gearboxes in these industries.
🔌 Extended Synthetic Oil Service Intervals
The fully synthetic worm gear oil in the EP-SSGM75 delivers extended service intervals — typically 10,000 operating hours under normal conditions — reducing the total maintenance cost particularly in remote or elevated installations such as offshore platforms, elevated conveyor head drives, and water tower valve actuators where oil change access is time-consuming and costly.
🏢 Application Industries & Typical Use Cases
🎂 Sugar Refining & Food Manufacturing at Scale
Sugar refineries and large-scale food manufacturers operate heavy transfer conveyors, crystalliser mixer drives, and centrifuge feed screw conveyors where standard reducers corrode rapidly in steam-rich, sugar-acid environments. The EP-SSGM75 handles crystalliser paddle drives, massecuite transfer conveyors, sugar mill elevator drives, and syrup tank agitator shafts with the torque capacity needed for dense, high-viscosity product handling and the corrosion resistance that food-grade environments demand.
🌳 Pulp, Paper & Biofuel Processing
Pulp and paper mills use high-pressure alkaline washdown and operate conveyors in permanently humid, chemically aggressive environments. The EP-SSGM75 drives pulper chest agitators, chip conveyor belt drives, black liquor transfer screw conveyors, and biomass handling belt drives — applications where the combination of high torque requirement and chemical exposure rules out both smaller stainless reducers and larger painted units.
⛰ Mining Washdown & Mineral Processing
High-tonnage mineral processing plants with acidic ore slurry washdown requirements, coastal aggregate terminals, and undersea mining support equipment all operate in conditions that destroy painted gearboxes within months. The EP-SSGM75 is specified for ore washing drum drive shafts, aggregate belt conveyor head drives, slurry pump gear drives, and mineral classifier paddle drives where longevity under chemical and abrasive exposure is the primary selection criterion.
💧 Large Water Infrastructure & Desalination Plants
Desalination facilities, large pumping stations, and major water treatment infrastructure require drives that resist chlorine, brine, and salt in permanently wet environments. The EP-SSGM75 powers large-bore sluice gate actuators, high-capacity bar screen rotation drives, clarifier rake mechanisms, and brine transfer screw drives where the unit’s high torque output and stainless construction are both non-negotiable requirements.
📚 Selection Guide, Certifications & FAQ
Engineering the Right EP-SSGM75 Configuration
The EP-SSGM75 is typically selected when the calculated peak output torque — factoring in service factor of 1.5× to 3.0× for shock-loaded or heavy start-stop applications — exceeds the EP-SSGM63’s capacity. Its IEC 132 frame compatibility extends the available motor power to approximately 7.5 kW, covering the majority of large industrial conveyor and mixer drive specifications without requiring the full SSGM90. When selecting ratio, note that 75mm center distance at low ratios (5:1–10:1) produces very high output torque but lower efficiency — for high duty cycle applications at low ratios, confirm thermal capacity with our engineering team. For marine and offshore installations, the standard 304 SS housing is sufficient for most salt-air environments; request a 316L upgrade quote if the installation involves direct seawater contact or high-temperature brine exposure. Reach our team at [email protected] with application duty cycle, ambient temperature, and installation orientation for a complete EP-SSGM75 sizing report.
✅ Certifications & Quality Standards
✓ ISO 9001:2015
✓ 304 SS Material Traceable
✓ RoHS Compliant
✓ IP65 Protection
✓ Synthetic Oil — Extended Service
❓ Frequently Asked Questions — EP-SSGM75
What applications specifically require the EP-SSGM75 rather than the SSGM63?
The EP-SSGM75 is the correct choice when peak output torque (with service factor) exceeds the SSGM63’s rated capacity, when motor power requirements fall in the 4–7.5 kW range requiring IEC 132 frame compatibility, or when the driven shaft diameter exceeds 63mm. Practically, this threshold is reached in sugar refinery transfer drives, large industrial mixer shafts, heavy mineral processing conveyors, and large water infrastructure gate actuators where the SSGM63’s mechanical limits are consistently approached or exceeded during peak loading events.
How does the EP-SSGM75 handle high shock loads from conveyor start-up?
The 12-2 tin bronze worm wheel provides good shock absorption characteristics during heavy conveyor start-up due to the inherent compliance of the bronze alloy under impact loading. For heavy conveyors with high inertia loads, a soft-starter or VFD ramp-up is strongly recommended to limit peak torque during acceleration — this extends worm wheel life significantly and protects the gearbox from overload. For very frequent start-stop cycles at maximum load, apply a service factor of 2.5× or higher and consult our team for thermal rating verification at your specific duty cycle profile.
Is the EP-SSGM75 available with a hollow shaft for direct drum mounting?
Yes, a hollow output shaft configuration is available on the EP-SSGM75 for OEM orders, enabling direct shrink-disc or keyless locking assembly mounting onto conveyor drum shafts or agitator stubs without a coupling. This eliminates shaft alignment issues and reduces the drivetrain length — particularly valuable for large conveyor head drives where the motor-gearbox-drum assembly must fit within a defined structural bay. Contact our sales team with your drum shaft diameter and required output torque for hollow shaft dimensioning.
Can the EP-SSGM75 operate in continuous duty at maximum rated torque?
The EP-SSGM75 can operate continuously at rated torque provided the ambient temperature is within the specified range of -10°C to +40°C and the duty cycle allows the lubricant temperature to remain below 90°C. For ambient temperatures between 40°C and 60°C, derate the continuous output torque by 15–20% or consult our engineering team for a thermal capacity curve. In high-ambient applications such as sugar mill boiler rooms or foundry environments, an oil cooler accessory or expanded oil reservoir can be fitted to maintain oil temperature within safe limits during continuous maximum-load operation.
What is the weight of the EP-SSGM75 gearbox?
Stainless steel’s density (approximately 7.9 g/cm³) results in a somewhat heavier gearbox than an equivalent-sized aluminium alloy unit, though similar in weight to cast-iron alternatives. The EP-SSGM75’s approximate shipping weight varies by configuration — solid shaft units are lighter than flange-output variants. Exact weight data is available in the full technical datasheet. For structural mounting calculations in elevated or crane-lifted installations, contact our team for configuration-specific weight data.
How does the EP-SSGM75 compare with equivalent aluminium alloy worm gearboxes?
Aluminium alloy worm gearboxes are lighter and lower in initial cost but cannot match the corrosion resistance, surface hardness, or mechanical durability of 304 stainless steel in harsh environments. Aluminium corrodes in acidic or alkaline cleaning agents, suffers galvanic corrosion when in contact with stainless fasteners, and cannot be used in salt-spray or chemical plant environments without surface coatings that fail under continuous chemical exposure. The EP-SSGM75 costs more upfront but eliminates corrosion-related replacement cycles, coating maintenance, and contamination risk — delivering a lower total cost of ownership over a 5–10 year plant lifecycle in any corrosive or washdown environment.
⭐ Customer Reviews
Tom Gallagher — Sugar Refinery Maintenance Manager
Australia 🇦🇺 ★★★★★ 5.0
“We replaced all twelve of our crystalliser paddle drive gearboxes with EP-SSGM75 units after years of losing cast-iron units every crushing season. Two full seasons in, and we have had zero corrosion failures — remarkable in our steam and sugar acid environment. The torque capacity at 25:1 ratio handles our heaviest crystalliser loads without breaking a sweat. Best gearbox upgrade decision we have made in a decade.”
Sven Karlsson — Pulp Mill Drive Engineer
Sweden 🇸🇪 ★★★★★ 5.0
“Our pulp mill chip conveyor drives operate in permanent high-humidity with alkaline washdown. The EP-SSGM75 with IEC 112 motor at 20:1 ratio has been running continuously for 16 months without any maintenance intervention. The 304 SS housing shows no staining or pitting despite constant alkaline spray exposure. Significant improvement over the epoxy-coated cast-iron units we used previously.”
Mohammed Al-Rashid — Desalination Plant Engineer
UAE 🇦🇪 ★★★★☆ 4.5
“Specified EP-SSGM75 for sluice gate actuators at a new desalination intake structure in a high-brine coastal environment. The self-locking at 40:1 ratio holds gate positions reliably under tidal pressure without any brake mechanism. 304 SS has handled the brine environment well so far — 10 months in. Would have preferred 316L as a standard option, but the 304 SS has exceeded expectations in this application.”
🔗 Related Products & Compatible Accessories
⚡ Compatible IEC Motors
○ 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)
○ IEC Frame 112 B5 Three-Phase AC Motor (2.2–4.0 kW)
○ IEC Frame 132 B5 Three-Phase AC Motor (4.0–7.5 kW)
○ ATEX/Ex d rated motors for hazardous area installations
🔧 Optional Accessories
○ Hollow Output Shaft — OEM shrink-disc direct drum mounting
○ Heavy-Duty Output Flanges — B5/B14 pattern stainless flanges
○ Single/Double Solid Output Shafts — DIN 6885 keyway, 304 SS
○ Torque Arms (Type E) — heavy structural stainless reaction bracket
○ IP67 shaft seal upgrade — direct wash-deck exposure
○ 316L housing upgrade — direct seawater / high-brine environments
○ Oil cooler accessory — high-ambient or continuous full-load operation
Specify EP-SSGM75 for Your Large Industrial Drive Project
Ever-power provides full engineering application support, material certificates, and competitive OEM pricing for the EP-SSGM75 high-torque stainless steel worm reducer. Global distribution partnerships and volume pricing available.
📧 Request a Quote & Application Review
🏭 About Ever-power
✉ [email protected] | Distributor & OEM Partnership Enquiries Welcome
