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EPNMRV050 Aluminium Worm Gearbox — Overview
Designed for the demands of food processing lines and pharmaceutical manufacturing, the EPNMRV050 aluminium worm reducer delivers IP-friendly sealed performance in environments where hygiene and regular washdown are non-negotiable. At 3.5 kg and rated to 0.75 kW, this mid-range model produces up to 81 Nm of output torque across twelve standard reduction ratios, making it the most popular EPNMRV size among OEM bottling line integrators and conveyor drive manufacturers across Asia-Pacific. The smooth, low-noise worm gear set minimises vibration transmission to sensitive processing equipment, and four output flange options (FA through FD) allow direct connection to conveyor rollers, eliminating intermediate couplings that trap food product.
EPNMRV050 Technical Specifications
General Specifications
| Parameter | Value |
|---|---|
| Model | EPNMRV050 |
| Input Power (P1) | 0.12 – 0.75 kW |
| Max Output Torque (M2) | 81 Nm |
| Max Radial Force (Fr2) | 4280 N |
| Available Gear Ratios (i) | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Output Shaft Dia. | 25 mm / 1.000 in |
| Input Shaft Dia. | 15.875 mm / 0.625 in |
| NEMA Input Flange | NEMA 56C |
| IEC Input Flange | IEC 71/80 |
| Unit Weight | 3.5 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 | 3.62 in | 92 mm |
| B – Body height | 3.31 in | 84 mm |
| J – Overall length | 4.76 in | 121 mm |
| Output shaft dia. | 1.000 in | 25.4 mm |
| Input shaft dia. | 0.625 in | 15.9 mm |
| NEMA flange | 56C | IEC 71/80 |
| Weight | – | 3.5 kg |
Performance Data — EPNMRV050 (n1 = 1,400 rpm)
| P1 (kW) | Ratio (i) | n2 (rpm) | M2 (Nm) | f.s. | Fr2 (N) |
|---|---|---|---|---|---|
| 0.37 | 10 | 140 | 21.7 | 3.3 | 1987 |
| 0.37 | 20 | 70 | 40 | 1.8 | 2503 |
| 0.37 | 30 | 46.7 | 55 | 1.5 | 2865 |
| 0.37 | 40 | 35 | 68 | 1.1 | 3153 |
| 0.37 | 50 | 28 | 80 | 0.9 | 3397 |
| 0.55 | 10 | 140 | 32 | 2.2 | 1987 |
| 0.55 | 15 | 93.3 | 46 | 1.6 | 2274 |
| 0.55 | 20 | 70 | 59 | 1.2 | 2503 |
| 0.55 | 30 | 46.7 | 81 | 1.0 | 2865 |
| 0.75 | 7.5 | 186.7 | 34 | 2.1 | 1805 |
| 0.75 | 10 | 140 | 44 | 1.6 | 1987 |
| 0.75 | 15 | 93.3 | 63 | 1.2 | 2274 |
| 0.75 | 20 | 70 | 81 | 0.9 | 2503 |
Key Features & Benefits — EPNMRV050
️
Hygiene-Ready Sealed Housing
Smooth external surfaces, multi-lip shaft seals, and baked epoxy-polyester coating resist aggressive alkaline cleaners used in food and beverage CIP (clean-in-place) washdown cycles. No thread-recessed fastener pockets to trap food debris or harbour bacteria.
Low Vibration for Fill Accuracy
Precision-lapped worm and wheel deliver smooth output torque that prevents product splashing and weight-measurement errors at fill stations — critical in high-accuracy liquid bottling and powder dosing lines operating at ±0.5 g tolerances.
25 mm — The Universal Processing Shaft
The 25 mm metric output shaft (1.000 inch) is the most common drive shaft size in food processing equipment, accepting standard market coupling bores, conveyor roller fittings, and IEC flange hubs without custom machining or special adaptors.
⚙️
FA–FD Flange Options for OEM Builds
Four output flange variants enable direct-face mounting on conveyor roller frames, rotary filling heads, and belt drive tension roller assemblies. OEM machine builders standardise on one gearbox model across a product family, reducing procurement complexity significantly.
4,280 N Radial Load for Belt Drives
The reinforced output shaft bearing set supports 4,280 N radial load — handling tensioned belt and chain pull forces on conveyor drives at all ratios from 5:1 to 100:1 without the premature bearing failures common in lighter-rated alternatives.
Application Scenarios — Where the EPNMRV050 Excels
Food Processing Lines
Meat portioning conveyors, vegetable processing lines, and bakery cooling tunnels use the EPNMRV050 as the standard drive. The sealed smooth-surfaced housing passes HACCP-compliant hygiene audits, and food-grade synthetic oil fill eliminates product contamination risk. Keyword: food-grade worm gear reducer for food processing conveyor lines Australia
Beverage Bottling Lines
Fill-head rotators, carousel drives, and pasteuriser conveyor systems in wine, beer, soft drink, and dairy bottling plants trust the EPNMRV050 for washdown resistance and 81 Nm torque. Smooth 46 rpm output (30:1 ratio) prevents bottle tip-over on high-speed lines. Keyword: worm reducer for beverage bottling line conveyor drives
Packaging & Wrapping Machinery
Horizontal flow wrapper infeed drives, shrink tunnel belt drives, and case-packer indexing tables select the EPNMRV050 for its 81 Nm capacity, 3.5 kg mass, and 12 available ratios covering every packaging line speed from 10 to 280 packages per minute. Keyword: compact worm gearbox for packaging and wrapping machinery
Pharmaceutical Manufacturing
Tablet coating drum drives, blister-filling carousel indexers, and capsule conveyor systems in pharmaceutical clean rooms choose the EPNMRV050 for its GMP-compatible sealed housing and consistently smooth output torque. Keyword: sealed worm gearbox for pharmaceutical production equipment
Selection Guide & Comparison — EPNMRV050
How to Select the Right EPNMRV Model
Select the EPNMRV050 when output torque is 30–81 Nm and input power is 0.12–0.75 kW. For food processing conveyors (23–93 rpm) use 15:1–60:1. For faster packaging lines (93–186 rpm) use 7.5:1–15:1. Exceed 0.75 kW or 81 Nm? Step up to EPNMRV063.
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 |
EPNMRV050 vs Traditional Cast-Iron Worm Reducer
| Attribute | EPNMRV050 (Aluminium) | Traditional Cast-Iron | Advantage |
|---|---|---|---|
| Weight | 3.5 kg | ~10 kg typical | 65% lighter — reduces equipment frame cost |
| Hygiene compliance | Smooth housing + food-grade oil | Requires additional sealing | Better for HACCP food environments |
| Output shaft | 25 mm ISO standard | Varies — often non-standard | Fits standard market couplings |
| Vibration level | Low (precision lapped worm) | Moderate (helical gear noise) | Better for fill-accuracy control |
| IP rating | IP54 standard / IP65 option | IP54 standard | Equal or better ingress protection |
Frequently Asked Questions — EPNMRV050
Why is the EPNMRV050 the most popular model for food processing?
The EPNMRV050 combines a smooth sealed exterior (no lubricant-trap recesses), multi-lip shaft seals, and food-grade synthetic oil that together meet HACCP hygiene requirements. The 25 mm output shaft accepts standard food-industry couplings, and 81 Nm torque covers most belt conveyor and roller drive applications without requiring a heavier, more expensive unit.
What is the output shaft size on the EPNMRV050?
Metric: 25 mm with 8 mm × 28.3 mm keyway. Inch series: 1.000 inch with 1/4 in × 1.5 in keyway. Both accept the most common drive shaft bores in food and beverage equipment without custom machining.
What input power range does the EPNMRV050 cover?
0.12 kW to 0.75 kW (0.16–1.0 HP). The 0.75 kW upper limit covers IEC 71 and 80-frame motors most commonly used in food processing conveyors and packaging machinery. For input powers above 0.75 kW, use the EPNMRV063.
Which IEC motor frame connects directly?
The metric EPNMRV050 accepts IEC 71 and 80 B14 flange motors. The inch-series version accepts a NEMA 56C flange (0.625 in bore). Both cover 0.12–0.75 kW. An IEC 63 adaptor flange is available for smaller motors.
Is a hollow output bore available?
Yes. The hollow bore variant has a 24 mm H8 bore (or 1.000 in) for direct shaft mounting, with a torque arm included. Commonly used on conveyor roller shaft direct-drive installations in food and pharmaceutical plants.
How should the EPNMRV050 be lubricated in a vertical bottling carousel installation?
For V5 (shaft down) and V6 (shaft up) installations, increase oil fill to approximately 0.35–0.40 litres of ISO VG 220 synthetic gear oil to ensure full bearing lubrication. Consult the supplied lubrication chart for exact fill volumes per orientation. Replace oil every 5,000 hours or annually in continuous-production environments.
Can the EPNMRV050 be supplied as a complete gearmotor?
Yes. The EPNMRV050 is frequently supplied as a gearmotor assembly with a pre-fitted 0.37–0.75 kW IEC 71 or 80-frame motor. The compact assembly reduces overall drive-train length and eliminates separate shaft couplings, simplifying installation on new and retrofit food processing equipment.
Customer Reviews — EPNMRV050
★★★★★
“Installed EPNMRV050 units on our vegetable processing conveyor line. After 14 months of daily high-pressure washdown with chlorinated cleaners, not one oil seal has shown any sign of seepage. Our hygiene auditor was impressed — smooth housing with no lubricant traps at all.”
Vegetable processing conveyor drive, Mildura VIC — 8 units
Belinda K.
Murray Valley Foods Pty Ltd — Australia
★★★★★
“Using the EPNMRV050 on our bottling carousel at 30:1 ratio. After two harvest seasons of intensive bottling runs, performance is identical to day one. Smooth output torque keeps bottle-position variance under 2 mm at our fill nozzles — critical for fill-weight accuracy.”
Wine bottling carousel drive, Bordeaux region
Pierre D.
Vignobles Dumont SARL — France
★★★★☆
“The EPNMRV050 fits our tablet coating drum drive exactly — both physically and in torque range. GMP documentation was provided promptly and matched the delivered unit. The sealed housing has handled our weekly IPA spray sanitisation without any issues over six months.”
Pharmaceutical tablet coating drum drive, Singapore
Rajan S.
Pharmalink Solutions Pte Ltd — Singapore
Related Products & Compatible Accessories
⚡
Compatible IEC B14 / NEMA Motors
Standard IEC B14 flange motors (IEC 71/80) and NEMA 56C frame motors pair directly with the EPNMRV050 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 / FC / FD)
Multiple output flange configurations for the EPNMRV050 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 EPNMRV050 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 EPNMRV050 can be combined with a larger output stage (e.g., EPNMRV050/130 or EPNMRV025/050) 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.
HACCP-Compliant Performance for Food & Beverage Production
The EPNMRV050 is the standard choice of food processing engineers across Asia-Pacific. Request a technical datasheet, ask about IEC-flanged gearmotor assemblies, or contact Ever-power for OEM pricing.
