EP-NMRV-E050 Aluminium Worm Gearbox

🔗蜗杆导向尾部输出轴——关键区别因素

The defining feature of the NMRV-E050 is its additional tail output shaft that extends in the same direction as the worm shaft axis. This second output enables simultaneous drive of two independent loads from a single gearbox — a primary application drive via the main output bore and a secondary auxiliary drive (encoder, tachometer, small pump, or fan) via the tail shaft.

🅆 VFD + Encoder in One Unit

The NMRV-E050 works seamlessly with VFD-driven IEC motors while the tail shaft simultaneously provides speed/position feedback, creating a closed-loop VFD-gearbox-encoder assembly without external sensor brackets.

◯ Same Torque as Standard NMRV050

The NMRV-E050 delivers identical maximum output torque (4,280 N·m) to the standard NMRV050, confirming that the tail shaft adds zero performance penalty on the main output. The tail shaft is driven directly off the worm shaft end, not the output stage.

编码器和反馈就绪

尾部输出轴为旋转编码器、测速发电机和脉冲发生器提供了直接连接点，这些设备用于在闭环运动控制系统中监测蜗杆轴的速度，从而无需外部编码器支架和联轴器硬件。

🚫 IP54 — 双重密封完整性

主输出孔和尾轴出口均采用双接触唇形密封件密封，在所有安装方向上均保持 IP54 防护等级，且在任何轴接口处均无漏油现象。

🚮 Closed-Loop Conveyor Control

NMRV-E050 worm gearbox for heavy conveyor drives where the tail shaft mounts a tachogenerator providing speed feedback to a VFD controller, enabling precise belt speed regulation under variable load.

⚙ Industrial Mixer Monitoring

Heavy-duty worm gear reducer with tail output shaft for industrial mixer drives where the tail shaft speed signal monitors worm shaft rotation, detecting stall conditions in high-viscosity batches.

💧 Water Treatment Instrumented Drives

Aluminium worm gearbox with tail shaft for slow-speed filter screen and sludge scraper drives where a tail-mounted pulse counter provides the operations team with real-time rotation confirmation.

📦 Print Line Register Control

Worm gear reduction gearbox with tail output for gravure printing press section drives where the tail shaft encoder provides master-line speed reference for digital register control systems.

★★★★★

“Our industrial mixer uses an NMRV-E050 with a tail-shaft tachometer. The tachometer signal feeds our VFD controller and maintains constant impeller tip-speed across varying product viscosities. Mixing uniformity has improved significantly.”

Rosa K. — Process Engineer, Food Ingredients 🇳🇿 New Zealand

★★★★★

“We installed NMRV-E050 units on our wastewater filter screen drives. The tail-shaft pulse counters feed our SCADA system, providing operators with real-time rotation confirmation and instant stall alerts. Highly reliable after 18 months.”

Carlos M. — Plant Manager, Water Treatment Authority 🇨🇱 Chile

★★★★☆

“The NMRV-E050 runs our print-line register control system. The tail shaft provides the master speed reference for our digital register system and print registration errors have been eliminated on fine-screen jobs.”

Michael T. — Production Manager, Print House 🇦🇺 Australia (NSW)

⚡ IEC电机（B5/B14）

标准交流电机，配有匹配的IEC法兰。另有VFD变频器版本，可实现变速控制。

🔗 输出轴套件

单端实心（DZ）、双端（SZ）、输出法兰（F）、空心法兰（FL）——所有 H7/h6 公差，带标准键槽。

🔨扭力臂和支架

用于轴安装配置的钢制扭矩反作用臂；用于 B3/B6 方向的底座安装板。

🔒密封和呼吸套件

更换唇形密封件套件、通气塞和磁性放油塞，延长保养周期。