توضیحات
EPNMRV075 Aluminium Worm Gearbox — Overview
The EPNMRV075 aluminium worm gearbox is engineered for the challenging demands of material handling, elevator mechanisms, and construction machinery where a balance of compact weight (9 kg) and high radial load capacity (up to 7,380 N) is essential. Producing output torques as high as 261 Nm from inputs up to 3.0 kW, this model sees widespread deployment on scissor-lift platforms, overhead material transfer systems, and construction hoists across the Asia-Pacific region. The EPNMRV075 extends the IEC and NEMA flange compatibility range beyond the EPNMRV063 by adding 180TC acceptance, and its 28 mm output shaft directly fits standard lifting drum coupling bores without adaptors.
EPNMRV075 Technical Specifications
General Specifications
| Parameter | Value |
|---|---|
| Model | EPNMRV075 |
| Input Power (P1) | 0.25 – 3.0 kW |
| Max Output Torque (M2) | 261 Nm |
| Max Radial Force (Fr2) | 7380 N |
| Available Gear Ratios (i) | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Output Shaft Dia. | 28 mm / 1.250 in |
| Input Shaft Dia. | 22.225 mm / 0.875 in |
| NEMA Input Flange | NEMA 56C/140TC/180TC |
| IEC Input Flange | IEC 90/100 |
| Unit Weight | 9 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 | 4.72 in | 120 mm |
| B – Body height | 4.69 in | 119 mm |
| J – Overall length | 6.85 in | 174 mm |
| Output shaft dia. | 1.250 in | 31.75 mm |
| Input shaft dia. | 0.875 in | 22.2 mm |
| NEMA flange | 56C/140TC/180TC | IEC 90/100 |
| Weight | – | 9 kg |
Performance Data — EPNMRV075 (n1 = 1,400 rpm)
| P1 (kW) | Ratio (i) | n2 (rpm) | M2 (Nm) | f.s. | Fr2 (N) |
|---|---|---|---|---|---|
| 1.5 | 7.5 | 186.7 | 67.5 | 1.9 | 2785 |
| 1.5 | 10 | 140 | 89 | 1.5 | 3065 |
| 1.5 | 15 | 93.3 | 127 | 1.1 | 3509 |
| 1.5 | 20 | 70 | 166 | 0.8 | 3862 |
| 2.2 | 7.5 | 186.7 | 100.2 | 1.8 | 2785 |
| 2.2 | 10 | 140 | 132 | 1.5 | 3065 |
| 2.2 | 15 | 93.3 | 191 | 1.0 | 3509 |
| 3.0 | 7.5 | 186.7 | 136.6 | 1.4 | 2785 |
| 3.0 | 10 | 140 | 180 | 1.1 | 3065 |
| 3.0 | 15 | 93.3 | 261 | 0.8 | 3509 |
Key Features & Benefits — EPNMRV075
️
261 Nm for Lifting & Handling Duty
At 15:1 ratio with 3.0 kW input, the EPNMRV075 delivers 261 Nm. This torque powers scissor-lift platforms, hoist drums, and counterbalance mechanisms in construction and logistics equipment throughout Australia and South-East Asia.
⚓
7,380 N Radial Force Capacity
Heavy-section output shaft and reinforced bearing housing support 7,380 N radial load — handling direct chain pull forces on drum hoist drives and overhead monorail systems without shaft deflection that triggers seal failure.
Three NEMA Sizes — Broadest Compatibility
Acceptance of 56C, 140TC, and 180TC NEMA flanges means the EPNMRV075 pairs with virtually every North American motor from 0.25 kW to 3 kW — critical for Australian machine builders supplying the US construction and materials-handling market without redesign.
⚖️
9 kg vs 25 kg Cast-Iron Equivalent
The EPNMRV075’s 9 kg mass is 64% lighter than an equivalent cast-iron reducer. On scissor lifts and elevated work platforms this weight saving directly increases rated personnel load capacity or reduces structural steel fabrication costs.
️
Heavy-Duty Baked-Enamel Topcoat
Two-coat thermosetting epoxy-polyester bake finish resists concrete dust, construction site grime, and salt-air spray on coastal port sites. Smooth surface cleans easily with a pressure washer between project deployments.
Application Scenarios — Where the EPNMRV075 Excels
️ Scissor Lifts & Elevated Work Platforms
The EPNMRV075 is a standard drive unit for scissor-lift screw drives, aerial work platform tilt mechanisms, and dock-leveller pump drives across Australian construction and warehouse markets. The self-locking property at ratios ≥ 30:1 provides a passive hold-in-place safety function. Keyword: worm gearbox for scissor lift and elevated work platform drives Australia
Material Handling & Logistics
Overhead monorail drives, pallet stacker lifting mechanisms, and tilt-conveyor actuators in warehouses use the EPNMRV075 for its 7,380 N radial capacity and compact 9 kg mass that simplifies overhead beam installation. Keyword: aluminium worm reducer for material handling and logistics
Heavy Industrial Conveyor Drives
Long-run belt conveyors in mining preparation plants, quarry crushing circuits, and port bulk-handling facilities use the EPNMRV075 for its combination of 3.0 kW input and 7,380 N radial capacity. Each unit saves 15+ kg versus cast-iron equivalents. Keyword: heavy-duty worm gear reducer for industrial conveyor drives
Port & Marine Equipment
Corrosion resistance and heavy epoxy topcoat make the EPNMRV075 suitable for port-side equipment including mooring winch drives, gangway positioning actuators, and portside conveyor drives. Weight savings versus cast iron reduce deck load on floating plant. Keyword: corrosion-resistant worm gearbox for port and marine equipment
Selection Guide & Comparison — EPNMRV075
How to Select the Right EPNMRV Model
Select the EPNMRV075 when torque is 80–261 Nm and input power is 0.25–3.0 kW. For lifting/hoist drives (47–93 rpm) use 15:1–30:1. Self-locking holds position at ratios ≥ 30:1. For faster conveyor drives (93–186 rpm) use 7.5:1–15:1. Exceed 261 Nm? Consider EPNMRV090.
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 |
EPNMRV075 vs Traditional Cast-Iron Worm Reducer
| Attribute | EPNMRV075 (Aluminium) | Traditional Cast-Iron | Advantage |
|---|---|---|---|
| Weight | 9 kg | ~25 kg typical | 64% lighter — reduces structural support cost |
| Self-locking | Yes (≥ 30:1) | Not inherent | Passive hold on lifting platforms |
| NEMA compatibility | 56C, 140TC, 180TC | 140TC only typical | Widest motor-pairing range in class |
| Radial load | 7,380 N | 6,000 N typical | Better for chain and belt tensioned drives |
| Corrosion resistance | Dual-coat epoxy alloy | Primer + topcoat required | Lower annual maintenance cost |
Frequently Asked Questions — EPNMRV075
What is the maximum continuous torque of the EPNMRV075?
261 Nm at 15:1 ratio with 3.0 kW input (93 rpm output). At 2.2 kW input the maximum is 191 Nm. This covers scissor lifts, overhead monorails, and heavy conveyor drives in the 1.5–3.0 kW motor range.
Is the EPNMRV075 safe for scissor-lift hold-in-place use?
At ratios ≥ 30:1 the EPNMRV075 is self-locking under static load. This provides a passive hold-in-place function useful in scissor lifts and positioning platforms. However, always use a secondary mechanical lock as specified by Australian Standards AS 1418 series — do not rely on self-locking alone.
Which NEMA flanges are compatible?
Three sizes: 56C (0.625 in, up to ~0.37 kW), 140TC (0.875 in, 0.25–1.1 kW), and 180TC (1.125 in, up to 3 kW). This breadth exceeds most comparable-torque competitors and eliminates motor selection constraints for machine designers.
What is the output shaft diameter?
28 mm metric (8 mm × 31.3 mm keyway) or 1.250 in inch-series. Both match the standard bore size on North American lifting drum couplings and conveyor drive sprocket hubs — fitting without custom machining.
Can the EPNMRV075 be used on a hoist drum drive?
Yes, with appropriate safety factor selection. The f.s. value in the performance table should be ≥ 1.5 for lifting duty at your specific operating point. Apply a derating factor for hoist applications with repeated full-load starts. Always consult the relevant lifting equipment standard for your jurisdiction.
What is the oil fill volume?
Approximately 0.8 litres of ISO VG 220 synthetic for horizontal B3 mounting. V5/V6 vertical orientations require 0.95–1.0 litres. In elevated-temperature duty (ambient > 35 °C), use full synthetic VG 220 and check oil level monthly during the first 500 hours.
Is a hollow output bore available?
Yes. 35 mm H8 bore (metric) with a torque arm assembly included. Commonly used on conveyor head-drum direct-drive and trolley hoist drum drives where no space for an output coupling exists.
Customer Reviews — EPNMRV075
★★★★★
“Fitted EPNMRV075 units on 40 of our hire fleet scissor lifts. The 9 kg mass versus the 25 kg cast-iron units we previously used makes a real difference on rated platform load calculations — and site crews appreciate the lighter mechanism during equipment relocation.”
Scissor-lift screw drive retrofit, QLD & NSW — 40 units
Ryan O.
Southern Cross Construction Equipment — Australia
★★★★★
“Excellent torque and very consistent quality across our batch orders. The EPNMRV075 at 20:1 on our platform lift gives smooth, jerk-free movement that satisfies our elevator ride-quality standard. The sealed housing handles our outdoor shaft environments well.”
Platform lift drive, light commercial elevator product range
Jin-ho P.
Samkwang Elevator Co., Ltd — South Korea
★★★★☆
“Using the EPNMRV075 on our gangway positioning drives. The corrosion-resistant aluminium housing holds up well in the salt-air port environment. The 180TC NEMA flange option pairs with our European motor brand’s NEMA-metric hybrid frame perfectly.”
Port gangway positioning actuator, Rotterdam container terminal
Pieter V.
RotterdamPort Logistics BV — Netherlands
Related Products & Compatible Accessories
⚡
Compatible IEC B14 / NEMA Motors
Standard IEC B14 flange motors (IEC 90/100) and NEMA 56C/140TC/180TC frame motors pair directly with the EPNMRV075 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 EPNMRV075 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 EPNMRV075 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 EPNMRV075 can be combined with a larger output stage (e.g., EPNMRV075/130 or EPNMRV025/075) to achieve ratios up to 5,000:1 for ultra-slow precision drives. Contact Ever-power for double-stage selection data.
️
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.
Engineered for Lifting, Handling & Construction Machinery
The EPNMRV075 is a proven performer in Australian construction, port, and logistics equipment. Contact Ever-power for technical datasheets, hollow-bore options, and volume pricing.
