Mitsubishi M80 Linear Servo Motor 200V LM-FS40-1WW0

LM-FS40-□-1WW0 (often typed incorrectly as “LM-FS40-1WW0”) is the Mitsubishi Electric LM-F series secondary side (magnet track / linear motor rail) used with LM-FP4 series linear servo motor coils.

It is the 200 mm class wide permanent-magnet rail used in high-thrust linear motor systems.

🔧 What it is

• Secondary side (fixed part) of a linear motor system
• Contains embedded permanent magnets in an epoxy housing
• Works with LM-FP4A / FP4B / FP4D / FP4F / FP4H coils
• Together forms a direct-drive linear axis (no screw, no belt)

📏 Available models

These are the standard LM-FS40 variants listed in Mitsubishi catalogs.

⚙️ Key technical characteristics

⚙️ System role

LM-FS40 is:

• the stationary magnetic field
• the “track” the LM-FP4 coil moves on
• responsible for producing high force when energized interaction occurs

Used in:

• CNC linear axes
• gantry systems
• semiconductor equipment
• high-precision automation

⚠️ Important notes

• Extremely strong magnetic force → can attract steel tools violently
• Must be aligned precisely with coil air gap
• Not interchangeable with LM-FS20 (different frame class)
• Always installed inside a rigid machine structure

🧠 Simple explanation

LM-FS40-□-1WW0 is the heavy-duty magnetic rail of Mitsubishi’s high-power linear motor system.
The moving coil (LM-FP4 series) runs over it to create ultra-precise, backlash-free linear motion.