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MAGNETICALLY
COUPLED
RODLESS
CYLINDERS
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The table below gives the maximum allowable moment a magnetically coupled rodless guided cylinder will support.
There are three different directions that the moment can be applied (see Sketch A).
Bore
Radial Axial Cross
H
Mr max. Ma max. MC max.
5/16" (031) 2.3 5.2 5.2 0.625
7/16" (043) 4.9 9.4 9.4 0.656
9/16" (056) 6.6 17.2 17.2 0.906
3/4" (075) 11.1 37.5 37.5 1.168
7/8" (087) 14.3 68.4 68.4 1.374
1-1/16" (106) 19.5 89.1 89.1 1.563
1-1/4" (125) 26.5 160 160 1.937
1-1/2" (150) 40.4 250 250 2.281
2" (200) 67.0 800 800 3.000
Radial Moment Axial Moment Cross Moment
Sketches B, C, and D demonstrate how a force is applied to a moment arm to produce the moments shown in Sketch A. Use the
equations below to determine the actual moments created by your application. The results of each calculated moment should be
compared to the maximums listed in the table. (If the actual moments are greater than the listed maximums, then the load and
moments should be evaluated using the next larger magnetically coupled rodless slide.)
Radial Moment = Mr = Fr x (L+H)
Axial Moment = Ma = Fa x (L+H)
Cross Moment = Mc = Fc x (Lc)
An magnetically coupled rodless guided cylinder can withstand compound moments but the maximum allowable will be determined
by the total percentage of the axial, radial and cross moments. The equation below will determine the compound moment percent
based on the total moments. The compound moment percent must not be greater than 100. (If the compound moment percent is
greater than 100, then the load and moments should be evaluated using the next larger magnetically coupled rodless guided cylinder.)
M compound % = 100 x ( Mr + Ma + Mc ) < 100%
Mr max Ma max Mc max
Mc
Mr
Ma
SKETCH A
SKETCH B
Fr
L
H
SKETCH C SKETCH D
Fa
L
H
Fc
Lc
Size/Application Considerations (MC2S/MC3S)
Moments About the Carriage:
Maximum Allowable Moment (in-lb)
