The 677 mm specification distinguishes this reading-head assembly from shorter or differently configured position-feedback components. Listed as an MS22 X/Y reading head, the ASM SIPLACE 03090201 belongs to the machine’s linear positioning feedback system.
X/Y reading heads are associated with position measurement along the machine’s travel axes. Their role differs from that of motors, which generate movement, and rails, which provide mechanical guidance. The reading head supplies positional information rather than driving or supporting the moving assembly.
For maintenance and spare-parts planning, the combination of MS22, 677 mm, and 03090201 provides a more precise identification reference than the generic term “encoder head.” We supply ASM SIPLACE spare parts and can check availability for your requested configuration.

03090201 MS22 677 mm Matching
| Part Number | 03090201-01 |
|---|---|
| Part Type | Linear encoder reading head |
| Encoder Family | RSF MS22 |
| Term Note | RSF identifies the encoder manufacturer/family; the reading head provides axis position-feedback information |
| Axis Reference | X / Y |
| Documented Length | 677 mm |
| Related Version | 03090202-01 – MS22 X/Y 950 mm |
| Main Selection Risk | Choosing by MS22 family name while overlooking the documented 677 mm / 950 mm distinction |