Descrição
EPNMRV040 Worm Gearbox — Product Overview
The EPNMRV040 occupies the critical mid-compact position in the EPNMRV worm gearbox series, delivering up to 47 Nm of output torque from a 40 mm centre distance and a 2.3 kg aluminium body. This model has become a go-to reducer for Australian environmental and water-treatment OEMs who need a compact, corrosion-resistant drive for metering pumps, UV-sterilisation units, aerator drives, and wastewater-screen rakes. Compared with the smaller EPNMRV-030, the EPNMRV040 offers a wider 12-ratio selection (5:1 to 100:1), a larger 0.75″ output bore, and a significantly higher radial-load rating to 3,118 N — critical for direct-mount agitators and paddle drives. The 56C NEMA flange, standard output flange options FA through FD, and six mounting positions give plant engineers enough flexibility to retrofit almost any legacy worm reducer without redesigning the machine frame.
Principal foco da aplicação: wastewater treatment plants and water-dosing systems no Tratamento Ambiental e de Água setor em todo o mercado industrial australiano.
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Technical Specifications — EPNMRV040
Dimensional reference and mechanical rating data for the EPNMRV040 worm gearbox. Refer to the dimensional drawing below for full installation dimensions; all measurements are nominal and confirmed to our factory QA drawings.
Fig. Dimensional drawing — EPNMRV040 with standard output flange
| Especificação | Valor |
|---|---|
| Modelo | EPNMRV040 |
| Família de produtos | Caixa de engrenagens helicoidais de estágio único EPNMRV |
| Material de construção | Liga de alumínio fundido sob pressão (ADC12) |
| Distância do centro | 40 mm |
| Peso (sem motor) | 2.3 kg |
| Diâmetro do furo de saída (oco) | 0.75″ (H7 tolerance) |
| Eixo de saída (sólido) | 0.75″ keyed |
| Eixo de entrada | 0.625″ keyed |
| Taxas de redução disponíveis | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100:1 |
| Torque de saída nominal máximo | 47 Nm |
| Potência máxima de entrada | 0.37 kW @ 1400 rpm |
| Carga radial máxima (Fr2) | 3118 N |
| Opções de flange de entrada NEMA | 56C |
| Posições de montagem | B3 / B6 / B7 / B8 / V5 / V6 |
| Material do eixo sem-fim | Aço liga 20CrMnTi cementado, retificado |
| Material da roda sem-fim | Fundição centrífuga de bronze-estanho CuSn12 |
| Lubrificação | Óleo sintético para engrenagens PAG (padrão ISO VG 320) |
| Classificação de proteção | IP55 Equivalente |
| Faixa de temperatura ambiente | -10 °C a +40 °C (faixa estendida opcional) |
| Opções de flange de saída | FA / FB / FC / FD (dependente do modelo) |
| Configuração do eixo | Furo oco / Maciço simples / Maciço duplo |
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Core Features & Benefits of the EPNMRV040
Every feature of the EPNMRV040 worm gearbox has been engineered to address the specific demands of Australian industrial operators — from coastal humidity and inland dust through to continuous-duty thermal loads.
Modular IEC & NEMA Compatibility
The EPNMRV040 accepts the 56C NEMA flange plus IEC 63B14 and 71B14 interfaces — letting water-treatment contractors standardise across imported European motors and locally stocked Australian units on a single gearbox SKU.
IP55 Sealed Enclosure
Closed die-cast aluminium housing with machined mating faces and factory-applied enclosure paint resists chlorinated water splash common around dosing skids and clarifier rake drives.
47 Nm Output Torque Rating
Handles the pulsating loads delivered by reciprocating dosing pumps, aerator paddle drives, and bar-screen rakes without need for oversized catalogue selection.
Factory-Filled Synthetic Oil
Arrives pre-lubricated with PAG synthetic gear oil rated from -20 °C to +90 °C — matching the ambient ranges found inside covered treatment plants across the Australian interior.
Twelve-Ratio Selection
Ratios 5:1 to 100:1 cover everything from high-speed disinfection mixers down to slow-rotating clarifier bridges without chain-reduction stages.
Six Mounting Positions with Oil-Level Flexibility
B3 foot-mount through V6 vertical give installers freedom to route pipework cleanly — our dimensional drawings flag exact fill-plug and level-plug positions for each orientation.
Every EPNMRV040 unit is machined, assembled and factory-tested before shipment
Industry Applications — Where the EPNMRV040 Excels
The EPNMRV040 worm gearbox has been specified into thousands of Australian installations across these five primary industry segments. Each application below is drawn from real project experience — not theoretical catalogue duty.
Tratamento Ambiental e de Água
From municipal dosing skids in regional Victorian and NSW water authorities through to private-sector leachate-treatment plants, the EPNMRV040 is specified as a dependable corrosion-resistant gearbox for environmental applications. Typical drives include bar-screen rakes, clarifier skimmer arms, and chemical-metering pump reducers.
Processamento de Alimentos e Bebidas
Mid-size packaging lines, pie-filler indexers, and dough-mixer speed reducers benefit from the EPNMRV-040’s sealed aluminium body and IEC-compatible motor interface — the ideal small worm reducer for sanitary processing environments.
Agriculture
Grain auger drives, chicken-feed auto-distributors, and mushroom-farm climate-control damper actuators use the EPNMRV040 for its balance of torque, durability, and weather-resistant construction.
Material Handling & Logistics
Returnable pallet-transfer conveyors, warehouse picking-robot auxiliary drives, and bulk-bag hoist mechanisms in Australian DC operations fit well within the EPNMRV-040’s 47 Nm rated output band.
Mineração e Processamento de Minerais
Laboratory riffler splitters, small aggregate-sample belt feeders, and exploration-core box handlers use the EPNMRV040 where heavier reducers would be impractical.
Guia de seleção e comparação
Sizing the EPNMRV040 for Your Application
O dimensionamento correto começa com dois parâmetros principais: obrigatório torque de saída (M2) e exigido potência de entrada (P1). Follow this three-step process when selecting the EPNMRV040:
- Identificar a velocidade de saída necessária (n2) — this determines your reduction ratio (i). The EPNMRV040 offers ratios from 5:1 to 100:1.
- Calcule o torque necessário com o fator de serviço. — Multiplique o torque teórico por um fator de serviço apropriado (1,0 para serviço contínuo, 1,5–2,0 para cargas de choque, 2,0–2,5 para serviço reversível).
- Verificar a capacidade de carga radial no eixo de saída. — overhung sprocket or pulley loads must not exceed 3118 N measured at the shaft midpoint for the EPNMRV040.
Entre em contato com nossa equipe de engenharia pelo telefone vendas@nmrv-gearbox.xyz Com os parâmetros da sua aplicação para uma verificação de dimensionamento gratuita.
Referência de posição de montagem (B3 / B6 / B7 / B8 / V5 / V6)
The EPNMRV040 supports six standard mounting orientations. Each orientation affects the required lubrication charge and plug positioning — specify the correct orientation at time of order:
| Posição | Orientação | Carga típica de óleo |
|---|---|---|
| B3 | Eixo horizontal, montagem com pés (padrão) | Enchimento padrão do reservatório |
| B6 | Eixo horizontal, montagem na parede à esquerda | Enchimento padrão do reservatório |
| B7 | Eixo horizontal, montagem na parede à direita | Enchimento padrão do reservatório |
| B8 | Eixo horizontal, montagem com os pés invertidos | Preenchimento padrão + 10% |
| V5 | Eixo vertical descendente | Preenchimento aumentado (+25%) |
| V6 | Eixo vertical para cima | Preenchimento aumentado (+25%) |
O enchimento incorreto com óleo para uma determinada orientação de montagem é a principal causa de desgaste prematuro da engrenagem sem-fim nas primeiras 1.000 horas de serviço — especifique corretamente no momento do pedido para evitar isso.
EPNMRV040 (Aluminium) vs Traditional Cast-Iron Worm Reducers
Os compradores australianos optam consistentemente por redutores de rosca sem-fim com corpo de alumínio em vez das unidades tradicionais de ferro fundido por cinco razões mensuráveis:
| Atributo | EPNMRV040 Aluminium | Ferro fundido tradicional |
|---|---|---|
| Peso (tamanho equivalente) | 2.3 kg | ~6.4 kg (approx 2.5–3× heavier) |
| Resistência à corrosão | Excelente — o alumínio forma uma camada passiva de óxido. | Requer manutenção ativa da pintura. |
| Dissipação de calor | Condutividade térmica 3 a 4 vezes melhor | Limitado — depende apenas da área da superfície |
| Manuseio da Instalação | Instalação por uma única pessoa em muitos casos. | Normalmente requer auxílio para levantar, mesmo em tamanhos pequenos. |
| Custo do frete | Menor — peso reduzido da carga aérea | Tarifas de frete aéreo mais elevadas por unidade |
| Faixa de preço | Geralmente 15–30% inferior ao ferro fundido | Preços legados premium |
Frequently Asked Questions — EPNMRV040
Answers to the questions most commonly raised by Australian engineers and procurement buyers specifying the EPNMRV040 worm gearbox.
❓ What output flange options does the EPNMRV040 support?
The EPNMRV-040 supports four output flanges — FA, FB, FC, and FD — plus the base hollow-bore and solid-shaft variants. FA is the smallest (2.362″ pilot), while FD has a larger 3.15″ pilot. Select the flange that matches your downstream equipment interface; specifying at time of order avoids costly remachining later.
❓ Is the EPNMRV-040 rated for continuous outdoor service in Australian conditions?
Yes, with the standard factory paint system. The aluminium body resists UV degradation, and viton lip seals tolerate the Australian outdoor temperature range. For cyclone-prone regions of Queensland or the NT, specify the marine-grade paintwork upgrade — this adds a chromate-conversion primer layer for enhanced salt-spray resistance.
❓ Can the EPNMRV040 drive a reciprocating metering pump directly?
Yes — pulsating loads from metering-pump cams are within the EPNMRV-040 design envelope, provided the mean torque stays below 70% of catalogue output torque and the peak torque does not exceed 2× rated. Use our performance tables to verify the expected peak torque against the radial-load rating.
❓ What oil is recommended for 24/7 water-treatment duty?
Factory fill is ISO VG 320 synthetic PAG oil suitable for -10 °C to +90 °C continuous duty. For cold-climate applications in regional Victorian and Tasmanian wastewater plants where winter ambient falls below -5 °C, consider specifying the lower-viscosity VG 220 synthetic option.
❓ What is the difference between the hollow-bore and solid-shaft versions of the EPNMRV-040?
The hollow-bore version accepts an external drive shaft directly into the 0.75″ bore (H7 tolerance), secured by a keyway and retaining collar — ideal for direct-mount mixers and paddle agitators. The solid-shaft version outputs a 0.75″ keyed shaft, suitable for sprocket or pulley drives. Output torque ratings are identical; choice depends on your downstream mounting interface.
❓ How do I order the EPNMRV040 for a retrofit of a competing brand’s worm reducer?
Send our engineering team the existing reducer’s dimensional drawing plus the motor flange specification. The EPNMRV-040 dimensional envelope typically matches or undercuts common European worm reducers in this size class, and in most cases a direct one-for-one mechanical swap is achievable. We provide dimensional validation before order confirmation.