설명
EPNMRV110 Aluminium Worm Gearbox — Overview
The EPNMRV110 is the heavy-duty standard of the EPNMRV aluminium series, purpose-designed for high-torque industrial applications in steel fabrication, metal stamping, and large-scale conveyor infrastructure. At 35 kg and rated to 9.2 kW, it generates up to 660 Nm of output torque with radial force capacity reaching 10,320 N — placing it firmly in territory previously reserved for cast-iron reducers. Steel plant operators and heavy-machinery OEMs choose the EPNMRV110 because its die-cast aluminium alloy housing offers a 40% weight saving over equivalent cast-iron units, directly reducing structural support costs and simplifying field maintenance. The unit also accepts the widest NEMA motor range in the series: 140TC, 180TC, and 210TC flanges.
EPNMRV110 Technical Specifications
General Specifications
| Parameter | Value |
|---|---|
| Model | EPNMRV110 |
| Input Power (P1) | 0.55 – 9.2 kW |
| Max Output Torque (M2) | 660 Nm |
| Max Radial Force (Fr2) | 10320 N |
| Available Gear Ratios (i) | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80 |
| Output Shaft Dia. | 42 mm / 1.625 in |
| Input Shaft Dia. | 28.575 mm / 1.125 in |
| NEMA Input Flange | NEMA 140TC/180TC/210TC |
| IEC Input Flange | IEC 100/112/132 |
| Unit Weight | 35 kg |
| Housing Material | Die-cast ADC12 aluminium alloy |
| Worm Wheel Material | High-tensile phosphor bronze |
| Worm Shaft Material | 20CrMnTi alloy steel — case-hardened & ground |
| Surface Finish | Two-coat baked epoxy-polyester |
| Standard Mounting | B3 foot / VS IEC flange / hollow bore |
| Lubrication | ISO VG 220 synthetic gear oil |
| Input Speed (n1) | 1,400 rpm (50 Hz 4-pole reference) |
Inch-Series Dimension Reference
| Dimension | Inch Value | Metric Equivalent |
|---|---|---|
| A – Body width | 6.10 in | 155 mm |
| B – Body height | 6.59 in | 167 mm |
| J – Overall length | 9.94 in | 252 mm |
| Output shaft dia. | 1.625 in | 41.3 mm |
| Input shaft dia. | 1.125 in | 28.6 mm |
| NEMA flange | 140TC/180TC/210TC | IEC 100/112/132 |
| Weight | – | 35 kg |
Performance Data — EPNMRV110 (n1 = 1,400 rpm)
| P1 (kW) | Ratio (i) | n2 (rpm) | M2 (Nm) | f.s. | Fr2 (N) |
|---|---|---|---|---|---|
| 1.5 | 10 | 140 | 90 | 2.2 | 4285 |
| 1.5 | 15 | 93.3 | 130 | 1.5 | 4905 |
| 2.2 | 10 | 140 | 134 | 2.3 | 4285 |
| 2.2 | 15 | 93.3 | 194 | 1.9 | 4905 |
| 2.2 | 20 | 70 | 255 | 2.5 | 5399 |
| 4.0 | 10 | 140 | 242.8 | 2.5 | 4285 |
| 4.0 | 15 | 93.3 | 352 | 1.9 | 4905 |
| 4.0 | 20 | 70 | 464 | 1.4 | 5399 |
| 5.5 | 7.5 | 186.7 | 253.2 | 2.2 | 3893 |
| 5.5 | 10 | 140 | 334 | 1.8 | 4285 |
| 5.5 | 15 | 93.3 | 484 | 1.4 | 4905 |
| 5.5 | 20 | 70 | 638 | 1.0 | 5399 |
| 7.5 | 7.5 | 186.7 | 345.3 | 1.6 | 3893 |
| 7.5 | 10 | 140 | 455 | 1.3 | 4285 |
| 7.5 | 15 | 93.3 | 660 | 1.0 | 4905 |
Key Features & Benefits — EPNMRV110
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660 Nm from 7.5 kW — Heavy Industrial Grade
At 15:1 ratio with 7.5 kW input, the EPNMRV110 delivers 660 Nm of sustained output torque. This positions it as the direct aluminium replacement for traditional cast-iron units in steel fabrication, heavy stamping press feeds, and large industrial conveyor drives.
210TC NEMA Flange — Largest Motor Range
The EPNMRV110 accepts 140TC, 180TC, and 210TC NEMA flanges, covering motors from 0.55 kW to 9.2 kW. The 210TC acceptance is unique to the 110 and 130 frame sizes and connects directly to the large-frame motors required for continuous high-torque industrial duty.
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35 kg vs ~60 kg Cast-Iron Equivalent
A 40% mass reduction versus equivalent cast-iron units allows single-vehicle transport to remote industrial sites, single-crane lifts during installation, and reduced structural steel costs in elevated conveyor frames and overhead drive mounting positions.
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10,320 N Radial Load — Belt Drive Ready
The EPNMRV110’s heavy-section output shaft bearings support 10,320 N radial force — directly handling the high belt tensions on bulk material conveyors, large-diameter drum drives, and roller press feeds without external pillow-block support.
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Thermally Stable Under 9.2 kW Continuous Load
The extra-wide fin array on the 110-frame housing delivers sufficient natural convection to prevent thermal runaway at full rated load in ambient temperatures up to 40 °C, eliminating the need for forced cooling fans on most industrial installations.
Application Scenarios — Where the EPNMRV110 Excels
Steel Fabrication & Metal Processing
Roll-former infeed drives, coil straightener units, and press-bed transfer conveyors in steel service centres and metal fabrication plants use the EPNMRV110 for its 660 Nm torque and 35 kg aluminium housing that simplifies installation on elevated mezzanine structures. Keyword: high torque worm gearbox for steel fabrication and metal processing equipment
Large Industrial Mixers
High-viscosity adhesive mixers, polymer compounding reactors, and large-batch industrial food mixers select the EPNMRV110 for its 660 Nm output at 93 rpm — adequate for direct impeller shaft drive on 5,000+ litre process vessels without intermediate gearboxes. Keyword: heavy-duty worm reducer for large industrial mixer and reactor drives
️ Heavy Lifting & Hoist Systems
Platform hoists, dock leveller actuators, and heavy-duty stage lifts in entertainment venues and industrial facilities use the EPNMRV110 for its combination of 660 Nm torque, self-locking at ratios ≥ 30:1, and 10,320 N radial capacity that handles direct-coupled lifting drum drives. Keyword: worm gearbox for heavy-duty hoist and lifting systems
Large Agricultural Processing
Grain auger drives, seed cleaning plant elevator drives, and large crop dryer air-handling units in bulk handling terminals use the EPNMRV110 for its outdoor-rated housing and high-torque continuous-duty performance in dusty grain environments. Keyword: high torque worm gear reducer for agricultural processing equipment
Selection Guide & Comparison — EPNMRV110
How to Select the Right EPNMRV Model
Select the EPNMRV110 when torque is 250–660 Nm and input power is 0.55–9.2 kW. For heavy industrial conveyors/mixers (47–93 rpm) use 15:1–30:1. For faster drives (93–186 rpm) use 7.5:1–15:1. Self-locking applies at ratios ≥ 30:1. Exceed 660 Nm? Step up to EPNMRV130.
Mounting Positions & Lubrication Notes
| Mounting | Code | Oil Fill Note |
|---|---|---|
| Horizontal — foot down | B3 | Standard fill volume (reference) |
| Horizontal — foot right | B6 | Same as B3 |
| Horizontal — foot left | B7 | Same as B3 |
| Horizontal — foot up | B8 | Same as B3 |
| Vertical — output shaft down | V5 | Increase fill ~20% above B3 reference |
| Vertical — output shaft up | V6 | Increase fill ~25% above B3 reference |
EPNMRV110 vs Traditional Cast-Iron Worm Reducer
| Attribute | EPNMRV110 (Aluminium) | Traditional Cast-Iron | Advantage |
|---|---|---|---|
| Weight | 35 kg | ~60 kg typical | 42% lighter — reduces structural and shipping cost |
| NEMA compatibility | 140TC, 180TC, 210TC | 140TC/180TC only typical | Covers full high-power motor range |
| Maximum output torque | 660 Nm | 600 Nm typical cast-iron | Higher peak torque in aluminium |
| Radial capacity | 10,320 N | 8,000 N typical | Handles heavy belt conveyor tension |
| Self-locking | Yes (≥ 30:1) | Not inherent in helical alternatives | Position hold without brake |
Frequently Asked Questions — EPNMRV110
What is the maximum torque of the EPNMRV110?
660 Nm at 15:1 ratio with 7.5 kW input (93 rpm output). At 20:1 ratio with 5.5 kW, 638 Nm is available at 70 rpm. The EPNMRV110 is the highest-torque single-stage aluminium worm gearbox in the EPNMRV series before stepping to the EPNMRV130.
Which NEMA motor frames are compatible with the EPNMRV110?
140TC (0.875 in bore, for motors up to ~2.2 kW), 180TC (1.125 in bore, 2.2–5.5 kW), and 210TC (1.375 in bore, 5.5–9.2 kW). The 210TC compatibility is unique to the 110/130 frame sizes in the EPNMRV range and is essential for large-frame high-power North American motors.
Is the EPNMRV110 suitable for outdoor installation at a bulk handling terminal?
Yes. The two-coat baked-epoxy finish, multi-lip shaft seals, and sealed housing joint provide IP54 protection as standard. For direct outdoor exposure in coastal or high-humidity environments, specify the IP65 variant with enhanced shaft seals and a sealed breather.
How does the EPNMRV110 compare to a cast-iron equivalent in the same torque class?
At 35 kg versus approximately 60 kg for an equivalent cast-iron unit, the EPNMRV110 reduces structural frame cost, transport cost, and installation labour. The aluminium housing also provides superior thermal conductivity, dissipating heat faster in hot environments. The trade-off is slightly lower mechanical robustness against physical impact — cast iron tolerates harder knocks.
What is the output shaft size on the EPNMRV110?
42 mm metric (1.625 in inch series) with a 12 mm keyway. This is the largest output shaft in the EPNMRV series before the EPNMRV130 and fits standard heavy conveyor drive sprocket bores and industrial coupling hubs used in the 5–9 kW motor power range.
What oil volume is required for the EPNMRV110?
Approximately 3.5 litres of ISO VG 220 synthetic gear oil for horizontal B3 mounting. V5/V6 vertical orientations require 4.0–4.2 litres. In high-duty 9.2 kW applications, consider ISO VG 220 full synthetic (rather than mineral oil) for improved viscosity stability at elevated operating temperatures.
Can the EPNMRV110 be supplied as a double-stage unit for very high ratios?
Yes. The EPNMRV050/110 double-stage combination extends available ratios up to 5,000:1 with maximum output torque of 10,320 Nm. Contact Ever-power for double-stage unit specifications, dimensional drawings, and pricing.
Customer Reviews — EPNMRV110
★★★★★
“Installed EPNMRV110 units on our coil straightener infeed drives. The 660 Nm output handles cold-rolling start-up inertia without stalling, and the 35 kg mass made installation on our elevated mezzanine possible with a single forklift lift rather than a mobile crane. Significant site safety improvement.”
Coil straightener infeed drive, steel service centre, Newcastle NSW
David W.
Hunter Steel Service Centre Pty Ltd — Australia
★★★★★
“The EPNMRV110 runs our polymer compounding reactor impeller at 93 rpm, 24 hours a day, 6 days a week. After 14 months of operation at full rated torque in an ambient temperature of 38 °C, the unit shows no thermal distress. Excellent thermal management from the aluminium housing.”
Polymer compounding reactor impeller drive, Leverkusen facility
Hans-Peter K.
Kemira Industrial Solutions GmbH — Germany
★★★★☆
“We use the EPNMRV110 on our press-bed transfer conveyor. The 210TC NEMA flange option was essential as our Turkish motor supplier uses NEMA-standard frames. Good torque consistency and the unit fits our existing conveyor frame dimensions exactly as dimensioned.”
Press-bed transfer conveyor drive, metal pressing plant, Bursa
Mehmet A.
Anadolu Metal Isleme A.S. — Turkey
Related Products & Compatible Accessories
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Compatible IEC B14 / NEMA Motors
Standard IEC B14 flange motors (IEC 100/112/132) and NEMA 140TC/180TC/210TC frame motors pair directly with the EPNMRV110 VS motor flange. Single-phase and three-phase AC motors from 0.06 kW to 9.2 kW are available from Ever-power as matched gearmotor assemblies.
Output Flanges (FA / FB / F
Multiple output flange configurations for the EPNMRV110 allow direct face-mounting to conveyor roller frames, agitator shaft hubs, and indexing disc assemblies without intermediate couplings.
Hollow Output Bore & Torque Arms
Hollow bore variant of the EPNMRV110 eliminates output shaft couplings. Supplied with a torque arm bracket that reacts output torque against the machine frame — ideal for conveyor head-drum and auger shaft-mount installations.
Double-Stage EPNMRV Combinations
The EPNMRV110 can be combined with a larger output stage (e.g., EPNMRV110/130 or EPNMRV025/110) to achieve ratios up to 5,000:1 for ultra-slow precision drives. Contact Ever-power for double-stage selection data.
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Torque Limiter & Backstop Options
Torque limiter couplings and mechanical backstops are available as accessories. Backstops prevent reverse rotation on inclined conveyors; torque limiters protect the gearbox from shock overloads in crusher infeed and auger drive applications.
Heavy-Duty Torque in Aluminium — EPNMRV110
The EPNMRV110 replaces cast-iron reducers at 40% less weight. Contact Ever-power for IP65 specifications, double-stage combinations, or high-volume supply arrangements.
