The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X160-30STC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø63mm bore, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X160-30STC provides a nominal 160 mm stroke with a 30 mm rear adjusting screw, letting you fine-tune the stroke end on the machine without swapping the cylinder. At 0.5 MPa it delivers 1559 N push and 1402 N pull, moving up to 2805 N at 0.9 MPa, making it ideal for medium-force positioning tasks where commissioning or format changes demand quick mechanical adjustment.
This 63 mm bore tie-rod cylinder uses a 20 mm rod with M16x1.5 threads and PT1/4 ports. The built-in magnet (-S) accepts CMSG/DMSG/EMSG sensors, and the centre trunnion (TC) mount, supplied with the TCM1 bracket (order as F-SC63TC), allows the cylinder to pivot for swinging loads. Cushion length is 28 mm.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X160-30STC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 30 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. |
| ×160 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Dial in the exact 160 mm stroke end-stop during machine commissioning using the 30 mm rear screw, eliminating the need to fabricate custom hard stops or swap cylinders.
Quickly adjust the push stroke for different product sizes on a packaging line. The centre trunnion mount lets the cylinder pivot, simplifying integration into swinging transfer arms.
In clamping or pressing fixtures, use the adjustable stroke to take up mechanical wear over time, maintaining consistent clamping force without reprogramming the PLC.
Choose the SCJ63 when you need field-adjustable stroke control in a force class around 1559 N push at 0.5 MPa. If your application requires more force, step up to the 80 mm bore which provides 2513 N push; for a lighter, more compact solution, the 50 mm bore delivers 982 N. If you do not need the adjustable stroke feature, the fixed-stroke SC63 series offers the same mounting and force in a shorter overall body length.
For replacement, match this exact model: SCJ63X160-30STC, a 63 mm bore, 160 mm nominal stroke, 30 mm adjust range, centre trunnion mount, magnet sensor, TPU seals, and PT ports. For strokes of 300 mm or more, consider an external guide rail or a guided cylinder to protect the 20 mm rod from side-load bending.
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. The theoretical force at 1.0 MPa is 318 kgf. The adjusting screw does not change the force output.
Yes, if you need the adjustable stroke feature. Ensure the replacement matches the 63 mm bore, 160 mm nominal stroke, PT1/4 ports, and your required mounting. The SCJ body is slightly longer to house the adjusting screw. The SCJ mounting subset does not include FB flange or CA/CB clevis mounts.
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