NMRV030/040 Double Stage Worm Gear Reducer – Extreme Ratios, High Torque
NMRV030 NMRV040 Combination Worm Gearbox – Double Reduction Speed Reducer for Industrial Applications
H1:NMRV030/040 double stage worm gear reducer
The NMRV030/040 double stage worm gear reducer is a dual-stage combination of two NMRV worm gearboxes in series, delivering extreme reduction ratios from 300:1 up to 5,000:1 and maximum output torque reaching 1,650 N·m. This NMRV030 NMRV040 combination gearbox is engineered for applications requiring ultra-low output speeds and high torque density – from conveyor systems and packaging machinery to industrial automation and AGVs
H2:Key Specifications
| Parameter | Value |
| Total Reduction Ratios | 300, 400, 500, 600, 750, 900, 1200, 1500, 1800, 2400, 3200, 4000, 5000 |
| Input Power | 0.06 – 0.15 kW (typical, varies by ratio) |
| Output Torque | Up to 1650 N·m |
| Output Speed | 4.7 – 0.28 rpm (at 1400 rpm input) |
| Housing Material | Die-cast aluminum alloy |
| Mounting Positions | AS1, AS2, BS1, BS2, VS1, VS2, PS1, PS2 |
H2:Double reduction design with maximum torque
By connecting two worm gear stages in series, this dual reduction worm gear reducer significantly increases torque while maintaining a compact footprint. The precision ground worm gear ensures smooth operation, low noise, and extended service life. At a ratio of 30:1 or higher per level, the device provides self-locking (non reverse drive) capability - when the motor is turned off, the load cannot cause the output shaft to rotate backwards - which is a critical safety function for lifting and conveying applications.
Applications
Conveyor systems & material handling
Packaging machinery
Industrial automation & AGVs
Winches and lifting equipment
Food processing & printing machinery
Why Choose Our NMRV030/040 Dual Stage Gearbox?
ISO 9001 & CE certified manufacturing
Aluminum alloy housing – lightweight, excellent heat dissipation, corrosion-resistant
Flexible mounting – multiple orientations and flange options (IEC 56B5, 63B5, 71B5, etc.)
Customizable – input/output shaft sizes, flange dimensions, and motor pairing available
Quick response – technical support for model selection within 24 hours
