Specifications

Installation Procedure
1. Check that there is no dust or scratches on the rotary magnescale installation surface.
Check that there are no indentations, rust, or scratches on the machine shaft where the rotary
magnescale will be installed. Completely wipe off any dust and dirt on the machine shaft.
2. Insert the rotary magnescale gently into the machine shaft.
The machine shaft and scale shaft are designed for a precise fit, and so do not try to force insertion
of the rotary magnescale into the machine shaft.
3. Secure the rotary magnescale.
Use M4 screws to install from the rotary magnescale top, and use M6 screws to install from the
rotary magnescale bottom. (M4 tightening torque: 2.5 N.m)
4. Use the installation nut to secure the scale shaft to the machine shaft.
(M20 x 1 tightening torque: 20 N.m)
The securing operation can be performed more smoothly by using a tightening wrench and
fastening wrench as shown in the “7. Appendix.”
Air purging
If Magnescale is used in a dusty or misty environment, it is recommended that air is introduced into
the scale to alleviate any unwanted effects. Attach air nipples to M5 holes for air introduction that are
provided at both ends of the scale to supply air into the scale.
When introducing air into the scale, supply air via an air filter (nominal filtration rating: 5 μm), mist
separator (nominal filtration rating: 0.3 μm), and a regulator to remove dust, dirt, and mist. As a guide,
the amount of air supplied to the scale is 30 NL/min.
Tube bending radius of
R15 mm or more
Polyurethane tube of
φ6 O.D. and φ4 I.D.
Nylon tube of φ8 O.D.
Air supply source
Air filter
(nominal filtration rating: 5 µm)
Mist separator
(nominal filtration rating: 0.3 µm)
Reducing valve
Distributor section
Scale
Air nipple
+B M5 x 6
M5 × 6 hex. socket head screw
M4 tap for installation
(4 locations)
Machine shaft
Rotary magnescale unit
Installation nut
(obtain separately)
M4 x 16 (included)
Flat washers (included)
Mechanical Specifications
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