Nidec Machine Tool to Launch MPLJ Series: A Linear Position Detector for Large Machine Tools and Long-stroke Equipment

Ritto, Shiga – 15 JUN 2026 – Nidec Machine Tool Corporation announced today that it will launch the MPLJ series on June 15, a linear-type high-accuracy position detector capable of handling long strokes for large machine tools and long equipment. With its unique MP Scale that adopts an electromagnetic induction method, this new series realizes a position detection accuracy of ±2.5μm/m with a maximum stroke coverage of 255m. In addition, this product boasts high usability with an absolute system (which does not require homing during startup) and single-cable use.

As machine tools and transportation equipment have become increasingly larger in recent years, demand has grown for position detectors capable of supporting long travel distances, reducing wiring labor, enabling efficient startup upon activation, and minimizing power consumption during maintenance. The MPLJ series successfully addresses these challenges in desig, manufacturing, and maintenance processes to help reduce the burden on users.

1. Maximum coverage of 255m and improved maintainability
By connecting standard-length scales of 1,000mm, 750mm, 500mm, and 250mm in a modular configuration, the MPLJ series achieves a maximum stroke coverage of 255m. The use of standard-length scales simplifies transportation and installation, while offering improved maintainability when damaged, as only the affected section needs to be replaced.

2. Single-cable connection significantly reduces wiring labor
With an A/D converter and pre-amplifier function built into the head, MPLJ does not require an external signal conversion unit – which is necessary for conventional products. This improvement enables a single-cable-based direct connection from the MPLJ sensor head to the NC controller, simplifying wiring and reducing the equipment design workload. (Note: This feature depends on the controller equipment).

3. Absolute position detection enables faster equipment startup
The MPLJ’s absolute position detection function, which incorporates both incremental and absolute patterns, retains position information even when the power is turned off, and eliminates the need for homing during startup during activation. In addition, the MPLJ does not require a backup battery, which further helps reduce maintenance workloads.

4. IP67 to ensure high-accuracy, stable operation in environments with oil and machining chips
The MPLJ adopts fully contactless structure based on an electromagnetic induction method to be free of wear components. In addition, complying with IP67, the product realizes stable operations even in dusty and oily environments, while maintaining a highly accurate position detection capability of ±2.5μm/m, ensuring long-term, high-accuracy position detection.

5. Multi-head capability for multi-axis control and greater design freedom
With its “multi-head” capability, where the user can mount multiple heads on a single scale, the MPLJ can control multiple axes independently and provide greater equipment design flexibility. Furthermore, the use of the dedicated software, MP Checker II, enables easy installation condition check, long-term condition monitoring, and maintenance diagnostics.

See the full press release here: https://www.mynewsdesk.com/us/nidec/pressreleases/nidec-machine-tool-to-launch-mplj-series-a-linear-position-detector-for-large-machine-tools-and-long-stroke-equipment-3454358