Descrição
EPNMRV130 Worm Gearbox — Product Overview
The EPNMRV130 is the flagship single-stage model in the EPNMRV worm gearbox family, delivering rated output torque up to 1,318 Nm from a 130 mm centre distance. With a 48 kg housing, a 1.75″ output bore, and support for NEMA 140TC, 180TC, and 210TC motor flanges, the EPNMRV-130 is built for the unforgiving duty profiles found in Australian cement mills, bulk aggregate plants, port material-handling facilities, large mixer drives, and heavy process-industry applications. Engineers choose the EPNMRV130 over the next-smaller EPNMRV110 whenever output-torque demand exceeds ~900 Nm, when ratios of 40:1 or lower are required with motor power up to 9.2 kW, or when the larger radial-load rating of 12,076 N is needed to support direct-mounted agitator paddles and overhung chain sprockets. Despite its capacity, the die-cast aluminium alloy body keeps total weight dramatically below equivalent cast-iron reducers — a genuine advantage when hoisting gearboxes into elevated silo positions or replacement-swapping in the field.
Principal foco da aplicação: cement mill drives and large mixer systems no Large-Scale Industrial Processing setor em todo o mercado industrial australiano.
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Technical Specifications — EPNMRV130
Dimensional reference and mechanical rating data for the EPNMRV130 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 — EPNMRV130 with standard output flange
| Especificação | Valor |
|---|---|
| Modelo | EPNMRV130 |
| Família de produtos | Caixa de engrenagens helicoidais de estágio único EPNMRV |
| Material de construção | Liga de alumínio fundido sob pressão (ADC12) |
| Distância do centro | 130 mm |
| Peso (sem motor) | 48.0 kg |
| Diâmetro do furo de saída (oco) | 1.75″ (H7 tolerance) |
| Eixo de saída (sólido) | 1.75″ keyed |
| Eixo de entrada | 1,25″ com encaixe |
| Taxas de redução disponíveis | 7.5, 10, 15, 20, 25, 30, 40:1 |
| Torque de saída nominal máximo | 1318 Nm |
| Potência máxima de entrada | 9.2 kW @ 1400 rpm |
| Carga radial máxima (Fr2) | 12076 N |
| Opções de flange de entrada NEMA | 140TC, 180TC, 210TC |
| 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 EPNMRV130
Every feature of the EPNMRV130 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.
Flagship 1,318 Nm Output Torque
The highest torque rating in the single-stage EPNMRV family — engineered for cement mill drives, large silo agitators, and heavy port material-handling systems across Australian bulk terminals.
12,076 N Maximum Radial Load
Carries the overhung loads from direct-mounted large-diameter chain sprockets and agitator paddles common in cement, bauxite, and alumina plants.
Large-Frame Motor Compatibility
140TC / 180TC / 210TC NEMA flanges support motor powers up to 9.2 kW — enough to drive the EPNMRV130 at its maximum rated torque in continuous duty.
High Thermal Capacity
4.2-litre oil reservoir combined with extensive external finning allows sustained high-torque operation in 50 °C-plus ambient environments found in covered cement plants.
Heavy-Duty Industrial Enclosure
The EPNMRV-130 housing is built to withstand the mechanical abuse of dropped loads, fastener over-torque during maintenance, and thermal cycling between plant shutdowns.
Versatile Ratio Coverage
Seven ratios from 7.5:1 to 40:1 give plant engineers precise speed control for kiln feed conveyors, mill discharge augers, and large-batch mixer drives.
Every EPNMRV130 unit is machined, assembled and factory-tested before shipment
Industry Applications — Where the EPNMRV130 Excels
The EPNMRV130 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.
Mineração e Processamento de Minerais
The EPNMRV130 is the reducer of choice for cement-mill feed conveyors, large bauxite silo agitators, and heavy port material-handling drives across Australian bulk terminals in the Pilbara, Gladstone, and Port Kembla. Rated at 1,318 Nm, it excels as a high-capacity worm gearbox for heavy industrial applications.
Manuseio e logística de materiais pesados
Large port-side reclaimer travel drives, heavy-capacity stacker-reclaimer luffing systems, and long-haul conveyor drives at Australian coal and iron-ore terminals specify the EPNMRV-130 for its high torque density.
Tratamento Ambiental e de Água
Very large municipal clarifier centre drives, heavy-duty digester mixer reducers, and large-capacity sludge belt-press pinch rollers use the EPNMRV130 where motor powers to 9.2 kW are needed.
Processamento de Alimentos e Bebidas
Industrial-scale dough-mixer drives, large-capacity meat-processing conveyor mains reducers, and multi-lane bottling-plant depalletiser drives use the EPNMRV-130 in heavy food-processing environments.
Agricultura e Produção Primária
Cotton-gin main drives, large-scale grain-silo discharge auger reducers, and sugar-mill juice-extraction roller drives in Queensland cane regions specify the EPNMRV130 where the EPNMRV-110 torque envelope becomes marginal.
Guia de seleção e comparação
Sizing the EPNMRV130 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 EPNMRV130:
- Identificar a velocidade de saída necessária (n2) — this determines your reduction ratio (i). The EPNMRV130 offers ratios from 7.5:1 to 40:1.
- 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 12076 N measured at the shaft midpoint for the EPNMRV130.
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 EPNMRV130 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.
EPNMRV130 (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 | EPNMRV130 Aluminium | Ferro fundido tradicional |
|---|---|---|
| Peso (tamanho equivalente) | 48.0 kg | ~134.4 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 — EPNMRV130
Answers to the questions most commonly raised by Australian engineers and procurement buyers specifying the EPNMRV130 worm gearbox.
❓ What motor power does the EPNMRV130 require at 40:1 ratio?
At 40:1 and 1400 rpm input, the EPNMRV-130 operates efficiently with motors from 1.5 kW up to 7.5 kW, depending on service factor requirements. At the flagship 1,318 Nm rated torque, motor input is typically 7.5 kW with a 1.0 service factor. Consult our catalogue curves for each specific ratio.
❓ Can the EPNMRV130 drive a large cement-mill feed conveyor?
Yes — the EPNMRV-130 is specifically sized for this application class. With 1,318 Nm continuous output torque and 12,076 N radial-load capacity at the output shaft, it comfortably drives feed conveyors up to 800 tonnes/hour capacity on cement-mill applications common in Australian cement plants.
❓ What ambient temperature range does the EPNMRV-130 support?
Standard configuration supports -10 °C to +40 °C. For Australian cement-plant or bulk-terminal applications where ambient routinely exceeds 45 °C during summer, specify the heavy-duty synthetic oil upgrade plus optional forced-air cooling. This maintains catalogue rating up to 55 °C ambient.
❓ Is the EPNMRV130 certified to any specific industrial standard?
The EPNMRV-130 is manufactured to an ISO 9001 quality system and tested against IEC 60034 mechanical ratings. The aluminium housing conforms to AS/NZS 4680 alloy specification. For specific application-code certifications (ATEX, IECEx, CE), specify requirements at order — these require a certified variant, not the standard catalogue unit.
❓ How is the EPNMRV-130 installed given its 48 kg weight?
At 48 kg installed weight, the EPNMRV130 requires mechanical lifting for installation. The housing has two lifting-eye provisions (M12) which should be used with certified lifting slings. Do not lift via the motor flange or output shaft. We supply a site-installation procedure as part of the commissioning documentation.
❓ Can the EPNMRV130 be specified with a custom output shaft?
Yes — custom output-shaft extensions, splined shafts, and non-standard keyways are available as a factory-modification option. Minimum quantities apply for non-catalogue shaft variants; specify the required shaft drawing at the RFQ stage. Standard 1.75″ keyed shaft remains our fastest-delivery option.
