Sự miêu tả
EP-NMRV050 — Stepping Up to Heavy-Duty Worm Gear Performance
Cái EP-NMRV050 represents the first genuinely heavy-duty entry in Ever Power’s NMRV aluminium worm gearbox range. With a 50 mm centre distance, it accepts up to 1.1 kW input power and develops up to 4,280 N·m output torque at 100:1 ratio — nearly 37% more than the NMRV040 — in the same die-cast aluminium architecture. This makes the NMRV050 the default choice for food processing conveyor drives, industrial mixer agitators, heavy packaging machinery, and agricultural grain-handling equipment where a compact but powerful aluminium worm gear reducer must coexist with demanding duty cycles. A key differentiator is its expanded IEC flange range — accepting 63B5, 63B14, 71B5, 71B14, and 80B14 motor flanges — enabling seamless integration with standard motors from 0.12 to 1.1 kW. The NMRV050 also introduces a larger 25 mm output bore, improving torque transmission reliability for shaft-mount applications on high-inertia loads.
Technical Specifications — EP-NMRV050
| Tham số | Giá trị |
|---|---|
| Loạt | NMRV (Đầu vào lỗ khoan với mặt bích đầu vào) |
| Khoảng cách trung tâm | 50 mm |
| Tỷ lệ giảm | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Công suất đầu vào định mức | Up to 1.1 kW |
| Phạm vi tốc độ đầu ra | Từ 14 đến 280 vòng/phút (với tốc độ đầu vào 1400 vòng/phút) |
| Mô-men xoắn đầu ra tối đa | 4,280 N·m |
| Vật liệu xây nhà | Hợp kim nhôm đúc |
| Vật liệu bánh răng trục vít | Đồng phosphor |
| Vật liệu trục vít | Thép hợp kim 20CrMnTi, tôi cứng bề mặt, mài chính xác. |
| Mặt bích đầu vào IEC | 63B5, 63B14, 71B5, 71B14, 80B14 |
| Đường kính lỗ đầu ra | 25 mm standard (H7 with keyway) |
| Bôi trơn | Dầu hộp số ISO VG 220 (đã được đổ đầy tại nhà máy) |
| Vị trí lắp đặt | B3, B6, B7, B8, V5, V6 |
| Lớp bảo vệ | IP54 |
| Nhiệt độ môi trường xung quanh | -10°C đến +40°C |
NMRV050 Performance Table (1.1 kW / 1400 r/min)
| Tỷ lệ (i) | Tốc độ đầu ra (vòng/phút) | Mô-men xoắn đầu ra (N·m) | Tải trọng hướng tâm (N) | Hệ số dịch vụ (fs) |
|---|---|---|---|---|
| 7.5 | 187 | 683 | 8 | 2.3 |
| 10 | 140 | 752 | 10 | 1.8 |
| 15 | 93 | 861 | 14 | 1.3 |
| 20 | 70 | 948 | 18 | 1.0 |
| 30 | 47 | 1,085 | 19 | 1.0 |
| 40 | 35 | 2,475 | 28 | 2.1 |
| 50 | 28 | 2,865 | 36 | 2.3 |
| 60 | 23 | 3,153 | 43 | 1.7 |
| 80 | 18 | 3,610 | 52 | 1.6 |
| 100 | 14 | 4,280 | 59 | 1.4 |
✅ Standout Features for Heavy-Duty Applications
📈 4,280 N·m — Substantial Torque Output
The NMRV050 surpasses the NMRV040 by 37% in maximum output torque without any increase in external housing dimensions, allowing upgrades without modifying mountings or structural supports.
🕵 Broad Motor Frame Compatibility
Five IEC flange options from 63B14 to 80B14 span the complete range from light positioning drives to heavy industrial conveyor motors on a single standard gearbox platform.
◯ 25 mm Output Bore — Robust Shaft Interface
The increased 25 mm output bore (H7) provides a more robust shaft interface than the NMRV040’s 18–22 mm bore, reducing fretting fatigue on high-cycle mixer and agitator drives.
🌞 Enhanced Fin Surface Area
The larger housing footprint allows a deeper fin pattern, dissipating up to 20% more heat than the NMRV040 under equivalent load density — valuable for 24-hour mixer and conveyor drives.
🚫 Leak-Proof at 1.1 kW Continuous
Double-lip PTFE-bonded shaft seals retain oil integrity at 1.1 kW continuous duty across all six mounting positions, essential when high-speed oil splash occurs inside the casing.
🏭 Application Sectors — Where NMRV050 Delivers
🍕 Food Processing Conveyors
Heavy-duty worm gear reducer for meat processing conveyor lines, bakery pan-transfer systems, and chilling tunnel belt drives — continuous 24-hour high-torque demand with frequent washdown cycles.
⚙ Industrial Agitators & Mixers
Worm gearmotor for industrial mixing — paddle mixers, ribbon blenders, and slow-speed agitator shafts in chemical, paint, and food ingredient processing at 14–56 r/min.
📦 Packaging Line Drives
Corrosion-resistant aluminium worm gear reduction gearbox for heavy packaging stations — case erectors, palletiser lift arms, and shrink-wrap tunnels requiring robust torque in a compact envelope.
💧 Water & Wastewater Treatment
Aluminium worm gearbox for slow-speed thickener drives, sludge scrapers, and belt-filter press rollers in municipal water treatment plants where corrosive atmospheres demand a non-ferrous housing.
🔎 Specifying the Right NMRV050 Configuration
NMRV050 Sizing Worked Example
| Design Step | Formula / Reference | Example (Mixer Drive) |
|---|---|---|
| Required torque | M = 9550 x P / n2 | P=0.75 kW, n2=28 r/min → M = 2,563 N·m |
| Ratio selection | i = n1 / n2 | i = 1400/28 = 50 → select i=50 |
| Service factor check | M x fs ≤ rated M | 2,563 x 1.25 = 3,204 ≤ 2,865 N·m ✅ |
| IEC flange | Match motor frame | 0.75 kW IEC 80B14 → select 80B14 code |
NMRV050 DZ/SZ Output Shaft Dimensions
| G1 (mm) | K1 (mm) | L/DZ (mm) | L1/SZ (mm) | b2 (mm) | d h6 (mm) | Rãnh then |
|---|---|---|---|---|---|---|
| 92 | 99.5 | 153 | 199 | 8 | 25 | M10 |
⚖ NMRV050 vs Traditional Heavy-Duty Cast-Iron Gearboxes
| Tính năng | EP-NMRV050 (Aluminium) | Cast-Iron Heavy-Duty Reducer |
|---|---|---|
| Trọng lượng ước tính | ~4.5 kg | ~11 kg |
| Mô-men xoắn đầu ra tối đa | 4,280 N·m | Similar at 2.5x weight |
| Khả năng chống ăn mòn | Excellent — aluminium oxide layer | Poor without regular painting |
| Độ dẫn nhiệt | 237 W/m·K — excellent | 52 W/m·K — poor at high load |
| Phạm vi mặt bích IEC | 5 sizes — 63 to 80 frame | Typically 1–2 sizes standard |
| Installation Time | Direct motor flange — <30 min | Coupling alignment — 1–2 hours |
❓ Frequently Asked Questions — EP-NMRV050
How does the NMRV050 compare to the NMRV040 in torque and power?
The NMRV050 delivers 4,280 N·m max output torque versus 3,118 N·m for the NMRV040 — a 37% increase. Input power capacity doubles from 0.55 to 1.1 kW, making the NMRV050 ideal when the NMRV040 is near its top-end range.
Is the EP-NMRV050 suitable for mixer agitator applications?
Yes. The NMRV050 is widely used for industrial mixers at 14–56 r/min. Apply service factor fs=1.25 for 8-hour operation or fs=1.5 for 16-hour operation. DZ or SZ solid output shaft is recommended for direct paddle-shaft coupling.
What is the output shaft tolerance and keyway specification?
Standard hollow bore 25 mm H7 with 8×3.3 mm keyway (ISO 773). DZ solid shaft 25 mm h6 with M10 key. Custom bore sizes 20, 22, or 28 mm available on request.
Can the NMRV050 operate in V5 (vertical, input up) position?
Yes. All six positions including V5 and V6 are supported. Adjust oil fill level per the mounting-position diagram and add a breather plug for V5/V6 to prevent pressure build-up.
What motors are compatible with the NMRV050 80B14 flange?
IEC 80 frame face-mount motors 0.55–1.1 kW from ABB, Siemens, WEG, Leroy-Somer, and similar brands. Motor output shaft is 19 mm diameter for IEC 80 frame.
⭐ Đánh giá của khách hàng
★★★★★
“We run eighteen NMRV050 units on our meat processing conveyor system — continuous three-shift operation with daily high-pressure washdown. After two years, all seals remain intact and torque delivery is completely consistent. The weight saving also simplified our overhead conveyor structure.”
Shannon R. — Engineering Manager, Meat Processing Plant 🇦🇺 Australia (South Australia)
★★★★★
“We use the NMRV050 on slow-speed ribbon blenders mixing abrasive ceramic compounds. The phosphor-bronze worm wheel handles sustained torque without issue, and the gearbox runs cool even after eight hours at full load.”
Mehmet A. — Production Director, Ceramics Manufacturer 🇹🇷 Turkey
★★★★☆
“Integrated four NMRV050 units on wastewater sludge-scraper drives at i=60. The aluminium housing handles the plant’s chlorinated atmosphere far better than the old cast-iron reducers.”
David K. — Asset Manager, Municipal Water Authority 🇬🇧 UK
⚙ Phụ kiện & Sản phẩm liên quan
⚡ Động cơ IEC tương thích
Động cơ AC một pha và ba pha tiêu chuẩn với mặt bích IEC B5/B14 tương thích. Có sẵn các phiên bản chịu tải biến tần (VFD) cho các ứng dụng điều chỉnh tốc độ.
🔗 Các tùy chọn trục đầu ra
Các loại mặt bích đơn đặc (DZ), hai đầu (SZ), mặt bích đầu ra (F), mặt bích rỗng (FL) — tất cả đều được sản xuất theo dung sai H7/h6 với rãnh then tiêu chuẩn.
🔨 Tay đòn và giá đỡ momen xoắn
Các thanh giằng chịu lực bằng thép cho cấu hình gắn trục; tấm đế điều chỉnh được cho hướng B3/B6. Có sẵn các giá đỡ tùy chỉnh cho các đơn đặt hàng số lượng lớn của nhà sản xuất thiết bị gốc (OEM).
🔒 Bộ dụng cụ làm kín và thông hơi
Bộ gioăng thay thế, nút thông hơi và nút xả từ tính giúp kéo dài thời gian sử dụng.
Enquire About EP-NMRV050 Supply & Distribution
Whether you need a single unit for a retrofit project or volume supply for OEM production, Ever Power’s team is ready to assist with technical specification, pricing, and delivery schedules.
Cái EP-NMRV050 aluminium worm gearbox offers a 50 mm centre distance, ratios from 5 to 100, rated input power up to 1.1 kW, and maximum output torque of 4,280 N·m. IEC flanges 63B5 through 80B14 are directly compatible. This heavy-duty worm gear reducer excels on food processing conveyors, industrial mixer agitators, and heavy packaging drives for manufacturing plants across Australia and worldwide.
