Product Overview
The XQ-RS9150MB is a 180kg.cm ultra-torque industrial brushless actuator built for smart factory automation. A brushless BLDC motor drives a reinforced toughened steel gear train to deliver a genuine 180kg.cm (2500 oz-in) stall torque at 16.8V, while the complete 64mm full-CNC unit weighs only 452g — an extraordinary torque-to-weight ratio for large robotic joints, heavy gantries and industrial motion axes.
What sets the XQ-RS9150MB apart is its native MODBUS-RTU protocol over RS485. Instead of a vendor-proprietary command set, the actuator exposes a standardized register map that any PLC, industrial PC, HMI or SCADA system can read and write directly. Position, speed, torque and status are addressed as ordinary MODBUS registers, so commissioning an RS9150MB is no different from wiring any other field device on the factory bus — no custom drivers, no protocol gateways and no vendor lock-in.
With a full-CNC aluminium housing and contactless magnetic feedback, the XQ-RS9150MB is engineered for 24/7 deployment in smart factories, where multi-axis daisy-chains and standardized fieldbus diagnostics are treated as standard practice rather than optional extras.
Technical Specifications
| Item | XQ-RS9150MB (180kg MODBUS-RTU Industrial Brushless Actuator) |
|---|---|
| Item No. | XQ-RS9150MB |
| Size | 64.0 * 32.8 * 76.5 mm |
| Weight | 452 g |
| Gear | Reinforced Toughened Steel |
| Motor | Brushless BLDC |
| Interface | MODBUS-RTU over RS485 |
| Voltage | 8.4 – 16.8 V |
Performance Matrix
| Voltage | Torque (kg.cm) | Torque (oz-in) | Speed (sec/60°) |
|---|---|---|---|
| 8.4 V (2S) | 116 | 1611 | 0.20 |
| 12.6 V (3S) | 160 | 2222 | 0.17 |
| 16.8 V (4S) | 180 | 2500 | 0.14 |
Key Technical Highlights
1. Standardized PLC Integration (MODBUS-RTU)
The XQ-RS9150MB speaks standard MODBUS-RTU over RS485, the de-facto industrial fieldbus found in virtually every smart factory. Any PLC, HMI, industrial PC or SCADA platform can poll position, speed, torque and fault registers directly and write motion commands without a proprietary driver. Multiple actuators daisy-chain on one twisted pair with unique slave IDs, so a single host controller can manage a complete multi-axis machine with ordinary MODBUS function codes (03/06/16).
2. Monster 180kg Torque & 4S Efficiency
At 16.8V (4S HV) the XQ-RS9150MB produces a massive 180kg.cm — roughly 2500 oz-in — of stall torque, enough to drive large mechanical joints, heavy gantries and industrial grippers without external reduction gearing. The brushless motor maintains high efficiency and low heat build-up even under sustained heavy loads, so the unit stays cool and repeatable in continuous duty cycles.
3. Advanced Brushless Reliability
A brushless BLDC motor eliminates brush wear and carbon dust entirely, while a contactless magnetic encoder provides high-resolution, drift-free position feedback with no wearing potentiometer tracks. The result is stable accuracy across millions of high-torque cycles and a service life far beyond conventional brushed industrial servos.
4. Heavy-Duty CNC Armour & Socket Interface
The 64mm full-CNC aluminium case doubles as a heatsink for the brushless motor and gear train. A professional socket interface keeps the power and RS485 wiring secure, correctly keyed and quickly serviceable, supporting long-term industrial deployment.
Engineering selection note: Specify the XQ-RS9150MB when the machine controller already speaks MODBUS-RTU. Its RS485 interface exposes position, speed, torque and fault data as standard registers that any PLC, HMI, industrial PC or SCADA master can poll, so a multi-axis machine can be commissioned with ordinary function codes instead of a proprietary driver. Match the unit to the axis load with the published curve — 116 kg.cm at 8.4V, 160 kg.cm at 12.6V and 180 kg.cm (2500 oz-in) at 16.8V, at 0.20, 0.17 and 0.14 sec/60° — inside the same 64mm, 452g full-CNC body. The XQ-RS9150D shares that same 180kg.cm platform, 452g housing and RS485 wiring, differing in its command interface.
Frequently Asked Questions
A: Yes. The actuator implements standard MODBUS-RTU over RS485, so it communicates directly with any PLC, HMI, industrial PC or SCADA system that supports a MODBUS-RTU master — no protocol converter, gateway or proprietary software is required. Simply assign a unique slave ID, match the baud rate and parity settings, and start reading or writing registers.