Description
EPNMRV063 Aluminium Worm Gearbox — Overview
The EPNMRV063 represents a significant step up in load capacity within the EPNMRV aluminium series, making it the model of choice for industrial mixing equipment, chemical dosing systems, and paper-handling machinery. Weighing 6.2 kg and handling input powers to 1.5 kW, it generates up to 167 Nm — more than double the capacity of the EPNMRV050. Chemical processing engineers particularly value the EPNMRV063 for its five output flange options (FA through FE) and compatibility with both NEMA 56C and 140TC input flanges, enabling direct coupling to a wide range of North American motors. The pressure-die-cast aluminium housing resists the caustic airborne contaminants common in chemical plant and water treatment environments.
EPNMRV063 Technical Specifications
General Specifications
| Parameter | Value |
|---|---|
| Model | EPNMRV063 |
| Input Power (P1) | 0.18 – 1.5 kW |
| Max Output Torque (M2) | 167 Nm |
| Max Radial Force (Fr2) | 6270 N |
| Available Gear Ratios (i) | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Output Shaft Dia. | 25 mm / 1.125 in |
| Input Shaft Dia. | 15.875 mm / 0.625 in |
| NEMA Input Flange | NEMA 56C / 140TC |
| IEC Input Flange | IEC 80/90 |
| Unit Weight | 6.2 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 | 4.41 in | 112 mm |
| B – Body height | 4.02 in | 102 mm |
| J – Overall length | 5.75 in | 146 mm |
| Output shaft dia. | 1.125 in | 28.6 mm |
| Input shaft dia. | 0.625 in | 15.9 mm |
| NEMA flange | 56C or 140TC | IEC 80/90 |
| Weight | – | 6.2 kg |
Performance Data — EPNMRV063 (n1 = 1,400 rpm)
| P1 (kW) | Ratio (i) | n2 (rpm) | M2 (Nm) | f.s. | Fr2 (N) |
|---|---|---|---|---|---|
| 0.55 | 15 | 93.3 | 46 | 1.6 | 2973 |
| 0.55 | 20 | 70 | 60 | 1.8 | 3272 |
| 0.55 | 30 | 46.7 | 83 | 1.9 | 3745 |
| 1.1 | 7.5 | 186.7 | 49.5 | 2.6 | 2359 |
| 1.1 | 10 | 140 | 65 | 2.0 | 2597 |
| 1.1 | 15 | 93.3 | 93 | 1.5 | 2973 |
| 1.1 | 20 | 70 | 122 | 1.1 | 3272 |
| 1.1 | 25 | 56 | 146 | 0.9 | 3524 |
| 1.1 | 30 | 46.7 | 167 | 1.0 | 3745 |
| 1.5 | 7.5 | 186.7 | 67.5 | 1.9 | 2359 |
| 1.5 | 10 | 140 | 89 | 1.5 | 2597 |
| 1.5 | 15 | 93.3 | 127 | 1.1 | 2973 |
| 1.5 | 20 | 70 | 166 | 0.8 | 3272 |
Key Features & Benefits — EPNMRV063
Chemical-Resistant Alloy Housing
ADC12 aluminium treated with two-coat baked epoxy-polyester finish resists caustic cleaning agents, acidic splatter, and chlorine-rich atmospheres in chemical dosing and water treatment plants — without the rust risk of cast-iron alternatives.
167 Nm for Industrial Mixing Drives
At 30:1 ratio, 1.1 kW input produces 167 Nm — adequate for small paddle mixers, ribbon blenders, and agitator shaft drives in 200–2,000 litre process vessels. Multiply capacity further using the pre-stage EPPC063+EPNMRV063 combination.
Five Output Flange Options (FA–FE)
FA, FB, FC, FD, and FE configurations cover every standard agitator shaft coupling, mixer frame connection, and conveyor sprocket hub used in Australian and European chemical and food process industries — a breadth unique to the 063 frame.
⚡
Dual NEMA Flange Compatibility
Acceptance of both 56C (0.625 in bore) and 140TC (0.875 in bore) flanges covers the full range of motors from 0.18 kW to 1.5 kW in North American-standard machine applications without adaptors or custom machining.
️
Superior Heat Dissipation for 24-Hour Duty
Wide-fin surface area delivers the thermal performance needed for continuous agitation duty in tank farms and process vessels. Operating temperature stays well within oil-viscosity design range even in enclosed machine rooms at 40 °C ambient.
Application Scenarios — Where the EPNMRV063 Excels
Industrial Mixers & Agitators
Paddle mixers, ribbon blenders, and slow-speed agitators for chemical reagent preparation, adhesive blending, and water treatment flocculant dosing are primary applications. The 167 Nm output at 47 rpm drives standard low-shear impeller shafts directly via the FA or FE flange. Keyword: worm gearbox for industrial mixer and agitator drives
Water & Wastewater Treatment
Slow-speed sludge scrapers, flocculation paddle drives, and dosing pump drives in municipal water treatment plants use the EPNMRV063 for its corrosion-resistant housing and continuous-duty torque. The sealed body withstands chlorinated spray without rusting. Keyword: corrosion-resistant worm reducer for water treatment plant equipment
Heavy-Duty Conveyor & Logistics
Heavy conveyor belt drives, roller sorter actuators, and telescopic belt drives in logistics hubs use the EPNMRV063’s 6,270 N radial load and 167 Nm torque. The 140TC NEMA flange connects directly to premium-efficiency motors specified by energy-conscious Australian facility managers. Keyword: heavy-duty worm gear reducer for industrial conveyor systems
Paper & Print Handling Equipment
Web-tension rollers, sheet-fed infeed drives, and printing press dampener units choose the EPNMRV063 for smooth, jerk-free output torque that prevents paper tearing. The sealed housing resists ink mist and paper dust. Keyword: smooth worm gear reducer for paper handling and printing machinery
Selection Guide & Comparison — EPNMRV063
How to Select the Right EPNMRV Model
Select the EPNMRV063 when torque is 60–167 Nm and input power is 0.18–1.5 kW. For mixer/agitator drives (47–93 rpm) use 15:1–30:1. For faster conveyors (93–186 rpm) use 7.5:1–15:1. Exceed 1.5 kW or 167 Nm? Consider EPPC063+EPNMRV063 or the EPNMRV075.
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 |
EPNMRV063 vs Traditional Cast-Iron Worm Reducer
| Attribute | EPNMRV063 (Aluminium) | Traditional Cast-Iron | Advantage |
|---|---|---|---|
| Weight | 6.2 kg | ~18 kg typical | 66% lighter — easier overhead installation |
| Corrosion resistance | Aluminium + dual-coat epoxy | Bare CI — primer + topcoat needed | Lower field maintenance cost |
| Output flange options | FA, FB, FC, FD, FE — 5 types | FA only typical | More connection flexibility |
| NEMA compatibility | 56C and 140TC both standard | One size standard | Wider motor compatibility range |
| Radial load at 100 rpm | 6,270 N | 4,500 N typical | Better for chain-tensioned drives |
Frequently Asked Questions — EPNMRV063
What is the maximum output torque of the EPNMRV063?
At 30:1 ratio with 1.1 kW input, the EPNMRV063 delivers 167 Nm. At 1.5 kW input at 20:1 ratio, 166 Nm is achievable at 70 rpm. This covers the majority of small paddle mixers and agitator drives up to 2,000-litre vessel capacity without requiring a two-stage gearbox.
Can the EPNMRV063 be used on a chemical dosing agitator?
Yes. The sealed aluminium housing and epoxy-polyester coating resist the acidic and caustic atmospheres around dosing vessels. Specify ISO VG 220 fully synthetic oil for best chemical environment compatibility. For sub-zero chemical storage applications, specify ISO VG 100 synthetic oil.
What NEMA input flanges does the EPNMRV063 accept?
Both NEMA 56C (0.625 in bore) and NEMA 140TC (0.875 in bore) — covering motors from 0.18 kW to 1.5 kW in the North American motor catalogue, without adaptors or custom machining.
Is the EPNMRV063 available with a pre-stage reduction unit?
Yes. The EPPC063+EPNMRV063 combination adds a helical pre-stage extending the ratio range to 293.3:1 and increasing maximum output torque. Contact Ever-power for pre-stage selection data and combined unit dimensional drawings.
How many output flange configurations does the EPNMRV063 offer?
Five configurations: FA (standard), FB (extended bolt-circle), FC (large face), FD, and FE. The FE flange is unique to the 063 frame and covers specific European agitator shaft coupling standards not available on other frame sizes.
What is the standard oil volume for the EPNMRV063?
Approximately 0.55 litres of ISO VG 220 for horizontal B3 mounting. For V5 and V6 vertical orientations, increase to 0.65–0.70 litres. In continuous agitator duty (24 h/day), replace oil every 5,000 hours or two years, whichever comes first.
Can the EPNMRV063 be supplied with a torque arm for hollow-bore shaft mounting?
Yes. The hollow bore variant (28 mm H8) is supplied with a torque arm bracket for reacting output torque against the machine frame. Preferred for agitator shaft drives where no output coupling space is available and direct shaft mounting minimises radial loading.
Customer Reviews — EPNMRV063
★★★★★
“Installed EPNMRV063 units on our flocculation paddle drives at two regional WA water treatment plants. Two years of operation in a heavily chlorinated environment and no housing corrosion — the epoxy finish is holding up far better than the cast-iron units we replaced.”
Flocculation paddle drive, regional water treatment plants, WA
Dr. Andrew F.
Curtin Water Systems Pty Ltd — Australia
★★★★★
“The EPNMRV063 at 30:1 ratio drives our paper web-tension roller perfectly. Smooth output torque has eliminated the register-mark scatter we experienced with our old gearbox, and the sealed housing handles paper dust and ink mist without maintenance issues.”
Web-tension roller drive on offset printing press, Abruzzo
Marco V.
Cartiere Riunite del Vomano — Italy
★★★★☆
“We use the EPNMRV063 on our adhesive blending paddle agitators. The 167 Nm output handles cold-viscosity start-up loads without stalling. The dual NEMA flange option is a real advantage as we source motors from two different suppliers.”
Adhesive paddle mixer drive, chemical plant, Pune
Pradeep K.
National Chemical Industries Ltd — India
Related Products & Compatible Accessories
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Compatible IEC B14 / NEMA Motors
Standard IEC B14 flange motors (IEC 80/90) and NEMA 56C / 140TC frame motors pair directly with the EPNMRV063 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 EPNMRV063 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 EPNMRV063 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 EPNMRV063 can be combined with a larger output stage (e.g., EPNMRV063/130 or EPNMRV025/063) 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.
Industrial Strength, Aluminium Efficiency
Engineers in chemical processing, water treatment, and industrial mixing across Australia and Asia-Pacific rely on the EPNMRV063. Contact Ever-power for technical support, custom configurations, or bulk supply agreements.
