130mm AC Servo Motor: 0.85–3.8 kW, 220V and 380V
The 130mm servo motor is a high-power, high-inertia permanent-magnet AC servo on a 130 mm (NEMA 51) flange. It spans 0.85 to 3.8 kW and 5 to 18 N·m of rated torque, and comes in two supply versions — 220V, and a 380V three-phase build for higher-power and factory three-phase systems. It runs closed-loop on a 17-bit absolute encoder. With a large rotor inertia, it drives heavy, inertial loads with stable motion, which puts it on bigger CNC machines, rotary tables, gantries and heavy-load automation that sit a step above what the 110mm frame covers.
220V or 380V — Which Supply to Choose
Every power rating in the 130 range is built in both a 220V version and a 380V three-phase version. The motor torque and frame are the same; the supply and current differ. A 380V three-phase servo draws less current for the same output, which keeps the cabling lighter and the drive cooler — the usual choice once power climbs and the machine runs on factory three-phase mains. The 220V version fits machines and sites built around a 220V supply.
| 220V | 380V Three-Phase |
|---|
| Supply voltage | 220V AC | 380V AC, three-phase |
| Current at the same power | Higher | Lower |
| Cabling and drive heat | Heavier gauge, warmer | Lighter gauge, cooler |
| Best for | Machines and sites on a 220V supply | Higher power on factory three-phase mains |
If your plant runs on 380V three-phase and the axis is in the higher-power range, take the 380V build. If the machine is wired for 220V, take the 220V build — same torque, same frame.
Power and Torque Range
The 130 frame runs from 0.85 kW up to 3.8 kW, with rated torque from about 5 to 18 N·m and peak torque to roughly twice that. The lower models run at 1500 rpm for steady torque; the top model runs faster for higher output. Pick by the continuous torque and speed your axis needs — send the load and duty and we will confirm the model and the supply voltage.
High Inertia for Heavy and Inertial Loads
The 130 carries a large rotor inertia, so it matches heavy and high-inertia loads directly and holds the inertia ratio in range without forcing a gearbox in just to fix the match. That keeps motion smooth and tuning simple on big rotary tables, rolls and gantries. As a rule, a servo controls a load best when the load inertia stays within about ten times the rotor inertia.
Typical Applications
The 130mm servo suits higher-power axes that move real load with accurate, repeatable motion:
- Machining centres and larger CNC feed axes — torque under heavy cutting load.
- Large rotary tables, indexers and trunnions — high-inertia loads held in range.
- Gantry, beam and overhead axes — controlled moves with significant mass.
- Packaging, converting, printing and web lines — smooth motion on big roll and belt drives.
- Press feeds, winders and material handling — steady torque on inertial loads.
- Robotics and heavy automation cells — mid-to-high power positioning.
Drive, Screw Options and Customization
Every 130mm servo is matched to a servo drive rated for its voltage and tuned to the motor as a tested set. The drive runs position, speed and torque modes, with pulse and direction or bus communication depending on the model. For machine-tool feed the motor can carry a ball screw output for direct linear motion. Build options cover shaft, keyway and flange to your drawing, a power-off brake for vertical axes, a planetary gearbox, and the connector and cable you need. As a servo motor manufacturer, we test the motor and drive together before they ship.
