SI, SID and SIJ ISO 6431 Pneumatic Cylinders

SI50X100 single-rod pneumatic cylinder

Series Part Number

Part Number: SIJ 50 x 50 S - 20 - LB
Explanation:

Series

SI - Standard double-acting cylinder
SID - Double-rod cylinder
SIJ - Double-acting cylinder with adjustable stroke; includes the adjustment field

Bore

32 - 32mm
40 - 40mm
50 - 50mm
63 - 63mm
80 - 80mm
100 - 100mm
125 - 125mm
160 - 160mm
200 - 200mm

Stroke

50 - 50mm; all listed bores
25, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500 - Listed standard strokes in mm for all listed bores
600, 700, 800 - Listed standard strokes in mm for bores 40–200mm
900, 1000 - Listed standard strokes in mm for bores 50–200mm

Magnet

Blank - Without magnet; omit S
S - With magnet; append directly after the stroke

Adjustable Stroke

10 - 10mm adjustment; SIJ only
20 - 20mm adjustment; SIJ only
30 - 30mm adjustment; SIJ only
40 - 40mm adjustment; SIJ only
50 - 50mm adjustment; SIJ only
75 - 75mm adjustment; SIJ only
100 - 100mm adjustment; SIJ only

Mounting

Blank - Basic mounting; omit mounting suffix and separator
LB - Foot mounting; SI, SID or SIJ
FA - Front flange; SI, SID or SIJ
FB - Rear flange; SI only
CA - Single-ear mounting; SI only
CB - Double-ear mounting; SI only
TC - Central trunnion; SI, SID or SIJ, bores 32–100mm
TC-M-1 - Trunnion mounting type TC-M-1; SI, SID or SIJ, bores 32–100mm
TC-M-2 - Trunnion mounting type TC-M-2; SI, SID or SIJ, bores 32–100mm

Description

SI, SID and SIJ cylinder arrangements

The SI family uses an ISO 6431 cylinder format with standard single-rod, double-rod and adjustable-stroke arrangements. Select the arrangement before choosing bore, stroke, magnet and mounting options; the configurations have different speed limits and mounting compatibility.

ModelArrangementOperating speed
SIDouble acting, single rod50–800mm/s
SIDDouble acting, double rod30–800mm/s
SIJDouble acting with adjustable stroke30–800mm/s
SI SID and SIJ cylinder symbols with and without magnetic pistons
Symbols distinguish rod arrangements and S magnetic-piston versions.

Ordering options

FieldSelection
ModelSI, SID or SIJ
Bore32, 40, 50, 63, 80, 100, 125, 160 or 200mm
StrokeSpecify in millimeters
MagnetBlank: without magnet; S: with magnet
SIJ adjustable stroke10, 20, 30, 40, 50, 75 or 100mm
MountingSelect a compatible code from the table below

The example SIJ50x50S-20-LB identifies an adjustable-stroke cylinder with 50mm bore, 50mm stroke, magnetic piston, 20mm adjustment and LB mounting. ISO 6431 identifies the cylinder format; match the actual mounting dimensions for replacement applications.

Mounting codeCompatible modelsBore restriction
Blank, LB, FASI, SID, SIJChoose for the selected bore
FB, CA, CBSIChoose for the selected bore
TC, TC-M-1, TC-M-2SI, SID, SIJ32–100mm only

Operating ratings and ports

Parameter32mm40mm50mm63mm80mm100mm125mm160mm200mm
ActionDouble acting
MediumAir filtered through a 40μm element
Operating pressure0.1–0.9MPa
Proof pressure1.5MPa
Temperature-5–70°C
CushioningAdjustable cushioning
Cushion stroke24mm32mm
Port sizePT1/8PT1/4PT3/8PT1/2PT3/4

Stroke selection

All dimensions in the following table are in millimeters. The maximum standard stroke and overall maximum stroke are separate limits; the SIJ adjustment is an additional ordering field.

BoreListed standard strokesMaximum standard strokeMaximum stroke
3225, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 50010002000
4025, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 80012002000
5025, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 800, 900, 100012002000
6325, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 800, 900, 100015002000
8025, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 800, 900, 100015002000
10025, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 800, 900, 100015002000
12525, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 800, 900, 100015002000
16025, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 800, 900, 100015002000
20025, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 400, 450, 500, 600, 700, 800, 900, 100015002000

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