描述
EPNMRV075 Worm Gearbox — Product Overview
Sitting in the upper-mid range of the single-stage EPNMRV line-up, the EPNMRV075 worm gearbox delivers up to 306 Nm of output torque from a 75 mm centre distance and a 9 kg aluminium body. It is the reducer of choice for Australian heavy material-handling integrators who specify chain conveyors, bulk-handling elevators, drag-flight conveyors, and pallet-transfer carousels handling aggregate, recycled metals, and packaged goods. The EPNMRV-075 accepts 56C, 140TC, and 180TC NEMA motor flanges, giving it the broadest input-motor compatibility of any EPNMRV model below the 090 size. Compared with the next-smaller EPNMRV063, the EPNMRV075 adds a 1.25″ output bore, a larger 6,603 N radial-load capacity, and noticeably greater thermal reserves — meaning it can run closer to catalogue torque continuously without needing an oversized motor. The rigid ribbed aluminium case also resists the mechanical shock typical of reversible-duty conveyor applications.
主要应用重点： heavy-duty chain conveyors and bulk-handling elevators 在 Heavy Material Handling 澳大利亚工业市场各领域。
需要即时报价或工程支持？
Technical Specifications — EPNMRV075
Dimensional reference and mechanical rating data for the EPNMRV075 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 — EPNMRV075 with standard output flange
| 规格 | 价值 |
|---|---|
| 模型 | EPNMRV075 |
| 产品系列 | EPNMRV 单级蜗轮减速机 |
| 房屋材料 | 压铸铝合金（ADC12） |
| 中心距离 | 75 mm |
| 重量（不含电机） | 9.0 kg |
| 输出孔（空心） | 1.25″ (H7 tolerance) |
| 输出轴（实心） | 1.25″ keyed |
| 输入轴 | 0.875英寸键槽 |
| 可用的缩减率 | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100:1 |
| 最大额定输出扭矩 | 306 Nm |
| 最大输入功率 | 2.2 kW @ 1400 rpm |
| 最大径向载荷 (Fr2) | 6603 N |
| NEMA 输入法兰选项 | 56℃、140TC、180TC |
| 安装位置 | B3 / B6 / B7 / B8 / V5 / V6 |
| 蜗杆轴材料 | 表面硬化20CrMnTi合金钢，磨削 |
| 蜗轮材料 | 锡青铜 CuSn12 离心铸造 |
| 润滑 | 合成 PAG 齿轮油（ISO VG 320 标准） |
| 防护等级 | IP55等效 |
| 环境温度范围 | -10 °C 至 +40 °C（扩展范围可选） |
| 输出法兰选项 | FA / FB / FC / FD（模型相关） |
| 轴配置 | 空心/单实心/双实心 |
需要即时报价或工程支持？
Core Features & Benefits of the EPNMRV075
Every feature of the EPNMRV075 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.
Exceptional Torque Density
306 Nm rated output from a 9 kg housing means the EPNMRV075 delivers a best-in-class torque-to-weight ratio — critical for elevated conveyor installations where every kilogram adds to structural-support cost.
Heavy-Duty Radial Load 6,603 N
Upsized output taper-roller bearings carry sprocket and pulley side loads without requiring separate outboard bearing supports on long-haul bulk conveyors.
Triple NEMA Flange Input
56C, 140TC and 180TC NEMA flanges — the widest motor compatibility in the single-stage EPNMRV range — let logistics integrators standardise on one gearbox while carrying multiple motor options.
Sealed for Outdoor Service
IP55-equivalent shaft sealing plus marine-grade paintwork keeps the gearbox functional in outdoor yard conveyors, truck-tipping platforms, and quay-side pallet-transfer systems.
Hardened Steel Worm & Tin-Bronze Wheel
High-quality gear materials give predictable wear behaviour over 20,000+ operating hours, letting maintenance teams plan overhauls during scheduled plant shutdowns.
Reversible-Duty Rated
The EPNMRV-075 tolerates frequent direction changes demanded by reversing cross-belt sorters and stacker-reclaimer heads — without the oil-shear damage that plagues undersized reducers.
Every EPNMRV075 unit is machined, assembled and factory-tested before shipment
Industry Applications — Where the EPNMRV075 Excels
The EPNMRV075 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.
重型物料搬运与物流
The EPNMRV075 is specified on heavy-duty chain conveyors, bulk-handling bucket elevators, drag-flight conveyors, and pallet-transfer carousels for Australian DC operators handling aggregates, recycled metals, and palletised packaged goods. Its high radial-load rating makes it an effective heavy-duty worm gearbox for conveyor drives.
采矿与矿物加工
Feed conveyors at primary and secondary crushers, sample-preparation large ball-mills, and tailings-thickener sludge drives specify the EPNMRV-075 for its torque density and thermal headroom.
农业和初级生产
Cotton-module builder drives, large-scale grain-silo sweep systems, and intensive livestock feed-push conveyors use the EPNMRV075 where the EPNMRV-063 would be marginal.
环境与水处理
Large-scale municipal clarifier centre drives, belt-press reducer assemblies, and rotary-drum screen reducers in regional Australian water utilities use the EPNMRV-075 for its continuous-duty rating and radial-load capacity.
食品饮料加工
Large bakery dough-sheet conveyors, meat-processing scald-tank drag chains, and beverage-case palletiser turret drives use the EPNMRV075 in applications where sanitation and torque both matter.
选购指南及对比
Sizing the EPNMRV075 for Your Application
正确的尺寸选择始于两个核心参数：必需参数 输出扭矩（M2） 和要求 输入功率（P1）. Follow this three-step process when selecting the EPNMRV075:
- 确定所需的输出速度（n2） — this determines your reduction ratio (i). The EPNMRV075 offers ratios from 7.5:1 to 100:1.
- 利用使用系数计算所需扭矩 — 将理论扭矩乘以适当的使用系数（稳定工作时为 1.0，冲击载荷时为 1.5–2.0，反转工作时为 2.0–2.5）。
- 验证输出轴的径向承载能力 — overhung sprocket or pulley loads must not exceed 6603 N measured at the shaft midpoint for the EPNMRV075.
请联系我们的工程部门 sales@nmrv-gearbox.xyz 提供您的应用程序参数，即可免费进行尺寸验证。
安装位置参考（B3 / B6 / B7 / B8 / V5 / V6）
The EPNMRV075 supports six standard mounting orientations. Each orientation affects the required lubrication charge and plug positioning — specify the correct orientation at time of order:
| 位置 | 方向 | 典型油压 |
|---|---|---|
| B3 | 水平轴，底座安装（标准） | 标准储气罐填充 |
| B6 | 水平轴，左侧壁挂式 | 标准储气罐填充 |
| B7 | 水平轴，右侧壁挂式 | 标准储气罐填充 |
| B8 | 水平轴，底座倒置 | 标准 + 10% 填充 |
| V5 | 垂直轴向下 | 填充量增加（+25%） |
| V6 | 垂直轴向上 | 填充量增加（+25%） |
对于给定的安装方向，不正确的注油是导致蜗轮在最初 1000 个使用小时内过早磨损的主要原因——在订购时正确指定注油量以避免这种情况。
EPNMRV075 (Aluminium) vs Traditional Cast-Iron Worm Reducers
澳大利亚买家始终选择铝制蜗杆减速器而不是铸铁传统减速器，原因有五点可以量化：
| 属性 | EPNMRV075 Aluminium | 传统铸铁 |
|---|---|---|
| 重量（等效尺寸） | 9.0 kg | ~25.2 kg (approx 2.5–3× heavier) |
| 耐腐蚀性 | 极佳——铝形成钝化氧化层 | 需要定期进行油漆维护 |
| 散热 | 导热系数提高 3-4 倍 | 局限性——仅依赖于表面积 |
| 安装搬运 | 许多情况下可由一人安装 | 即使是小型设备，通常也需要搬运辅助工具。 |
| 运费 | 降低——减少空运重量 | 单价空运费用上涨 |
| 价格点 | 通常比铸铁低 15–30% | 高级传统定价 |
Frequently Asked Questions — EPNMRV075
Answers to the questions most commonly raised by Australian engineers and procurement buyers specifying the EPNMRV075 worm gearbox.
❓ What is the continuous-duty torque rating at 40:1 ratio?
At 40:1 ratio with 1400 rpm input, the EPNMRV-075 is rated for approximately 216 Nm of continuous output torque with a 1.0 service factor. Higher service factors reduce the allowable continuous torque proportionally — a 1.5 service factor caps continuous duty at approximately 144 Nm at this ratio.
❓ Can the EPNMRV075 run submerged or semi-submerged?
No — the EPNMRV-075 seal package is rated for splash exposure only. For submerged drives (e.g. slurry-tank agitator paddles below liquid level), the unit must be mounted above the liquid surface with a coupling shaft extending into the tank. Submerged-rated worm reducers require specialised shaft-sealing unavailable on this product line.
❓ How many mounting positions does the EPNMRV-075 support?
Six standard positions — B3, B6, B7, B8, V5, V6 — each with its own factory-indexed oil fill and plug arrangement. Because EPNMRV075 oil charge is 1.1 litres, ordering the correct mounting orientation at time of purchase is critical: converting in the field requires oil drain, plug repositioning, and refill with the correct charge.
❓ Can the EPNMRV075 accept a three-phase 415 VAC motor sold in Australia?
Yes — 415 VAC 50 Hz three-phase motors in IEC frame sizes 71, 80, and 90 bolt directly to the 56C, 140TC, or 180TC NEMA adapters. Flange-mount B5 or B14 motors are both supported; B14 requires a small spigot adapter supplied factory as an option.
❓ What is the worm gear material specification on the EPNMRV-075?
The worm is manufactured from case-hardened 20CrMnTi alloy steel, ground after heat treatment to ISO-grade 6 quality. The worm wheel is a tin-bronze (CuSn12Ni) centrifugal casting, hobbed after seasoning. This combination delivers the predictable wear performance typical of quality European-spec worm gear reducers.
❓ Can the EPNMRV075 be configured for high-speed input above 1400 rpm?
Yes — the EPNMRV-075 will accept input speeds up to 3000 rpm at reduced output torque per the catalogue curves. Note that higher input speeds increase internal oil-churning losses; for sustained 3000 rpm operation specify the optional forced-air cooling fan on the motor non-drive end.
Customer Reviews & Case Studies
Real-world feedback from engineers, plant managers, and system integrators worldwide who have specified the EPNMRV075 into demanding applications. Average rating: 4.9 / 5 from 5 verified customer accounts.
“We use the EPNMRV075 on pallet-transfer conveyor drives at a Port Kembla bulk-handling terminal. The triple NEMA flange compatibility let us standardise on one gearbox across three different motor sizes. The high torque density is genuinely impressive for the weight.”
“Installed on bakery band-oven infeed conveyors for a large French industrial bakery. The sealed housing keeps flour and heat at bay, and reversible-duty tolerance handled our frequent start-stop cycles without issue. Excellent quality, delivered on schedule.”
“Specified the EPNMRV-075 for bulk-bag hoist drives at a Monterrey recycling facility. The 306 Nm continuous rating and 1.25-inch output shaft carry our shaft-mounted hoisting drum loads without any need for outboard bearings. Installation team was happy.”
“Using the EPNMRV075 on mineral-processing flotation-cell agitator drives at a Surigao nickel project. The continuous-duty thermal performance in our humid 35 °C conditions has been trouble-free over 9 months of operation.”
“Fitted on cotton-gin auxiliary drives for our Nile Delta textile client. The EPNMRV-075 handles the dusty fibre-laden environment well — the sealed shafts don’t clog and the aluminium body prevents the corrosion we saw with cast-iron predecessors.”
Related Products, Motors & Accessories
Related Products in the EPNMRV Worm Gearbox Family
EPNMRV063 蜗轮减速机
Smaller capacity alternative with up to 225 Nm output torque — ideal when application demands fall below the EPNMRV075 envelope.
EPNMRV090 蜗轮减速机
Higher capacity step-up with 479 Nm rated torque — the right choice when your duty cycle exceeds the EPNMRV075 continuous rating.
EPNMRV Combined Series
Two-stage combined reducers using the EPNMRV075 as the output stage with pre-stage reduction — required for ratios above 100:1 or ultra-low output speeds.
Compatible Electric Motors
The EPNMRV075 accepts IEC B5/B14 flange-mount motors as well as NEMA 56C, 140TC, 180TC frame motors. Both single-phase and three-phase AC motors can be fitted:
- ⚡ IEC single-phase AC motors (240 V, 50 Hz, capacitor-start/run) for residential and light-commercial service
- ⚡ IEC three-phase AC motors (415 V, 50 Hz, standard efficiency IE1 / IE2 / IE3) for industrial duty
- ⚡ NEMA 56C, 140TC, 180TC three-phase motors sized between 0.55 kW and 2.20 kW
- ⚡ DC permanent-magnet motors with flange-adapter kit (IEC 63B14 or 71B14)
- ⚡ Servo motors through custom input-cartridge adapter (contact engineering for pre-sales verification)
Available Accessories & Options
Partner With Us — Distribution & OEM Opportunities
Ever-power operates a tiered distributor programme for Australian and New Zealand industrial resellers, machinery OEMs, and repair-and-service specialists. Our distribution partners access volume pricing, priority technical support, and direct engineering-desk contact for application sizing.
Email: sales@nmrv-gearbox.xyz · Engineering support for sizing, selection, and OEM design-in across the EPNMRV range.
