The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X225-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø63mm bore, 225mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X225-100S delivers 1559 N of push force at 0.5 MPa, making it a robust choice for mid-range pneumatic tasks requiring on-the-fly stroke tuning. Its rear adjusting screw provides a generous 100 mm of adjustment, letting you dial in the exact stroke end position from 125 mm to the nominal 225 mm without swapping the cylinder.
This double-acting, single-rod unit features a 20 mm diameter rod and PT1/4 ports. The built-in magnet allows for direct mounting of CMSG/DMSG/EMSG sensors along the tie-rod body, simplifying end-of-stroke detection. The 28 mm air cushion at each end ensures smooth deceleration, and the body length is 197 mm plus stroke.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X225-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 225 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×225 | Nominal (maximum) stroke length in mm. |
| -100 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Quickly adjust the end stop for different product sizes on a packaging line, reducing downtime between batches.
Fine-tune the final clamping position to accommodate varying workpiece thicknesses in a jig or fixture.
Perfect for R&D and integration testing where the ideal stroke length is determined experimentally on the machine.
Select the SCJ63X225-100S when your application demands a 63 mm bore with a long, field-adjustable stroke. If you need more force, step up to the 80 mm bore, which provides 2513 N of push at 0.5 MPa. For a fixed-stroke solution, the standard SC63X225 is a direct alternative. A matching replacement must be an SCJ63 with a 225 mm nominal stroke and a 100 mm adjustment range, using PT ports and a basic mount. For strokes over 300 mm, consider an external guide to manage potential rod bending from side loads.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. The maximum push force at the 0.9 MPa operating limit is 2805 N.
A screw in the rear cap lets you shorten the stroke end by up to 100 mm. The 225 mm in the code is the maximum nominal stroke; you can adjust it down to 125 mm in the field.
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