The Mitsubishi MR-J4W2-22B is a 2-axis digital AC servo amplifier from the MELSERVO-J4 Series, delivering 0.2 kW per axis. It communicates over SSCNETIII/H, the high-speed synchronous motion bus that ties it to the controller without separate pulse-train wiring — a single cable carries position, speed, and torque commands plus feedback, which simplifies panel routing and cuts the risk of noise pickup on long runs. Rated output of 0.2 kW per axis means this amplifier drives small servo motors — think indexing tables, pick-and-place axes, or conveyor diverters — where the load inertia is modest and the cycle time is tight. Two axes in one package saves a DIN-rail slot and one power supply connection compared to two single-axis drives.

Mitsubishi MR-J4W2-22B 2-Axis Servo Amplifier, 0.2 kW, SSCNE
Mitsubishi MELSERVO-J4 Series, MR-J4W2-22B, 2-axis digital AC servo amplifier, 0.2 kW per axis, SSCNETIII/H compatible.
Specifications
| Parameter | Value |
|---|---|
| Product type | Digital AC-Servo Amplifier MR-J4W-B |
| Parameter | Value |
|---|---|
| B | SSCNETIII/H compatible |
| MR-J4 | AC servo amplifier MELSERVO-J4 Series |
| Weight | 1.4 Kg |
| Number of axes | W2 = 2 |
| Rated output [kW] | 22 = 0.2 |
| Dimensions (LxWxH) | 19.5cm x 6cm x 16.8cm |
Product details
Frequently asked questions
What is MR-J4W2-22B's communication interface?
It is SSCNETIII/H compatible — the high-speed synchronous motion network used by Mitsubishi controllers, carrying position, speed, and torque commands over a single fiber-optic or cable loop.
Where can I buy MR-J4W2-22B and how is it quoted?
This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quotation — no stock figures or fixed price is carried on this listing.
What is the rated output per axis on MR-J4W2-22B?
0.2 kW per axis, for a total of 0.4 kW across both channels. This suits small servo motors used in indexing, pick-and-place, or light conveyor applications.