The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X100-30TC 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, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X100-30TC is a double-acting, single-rod pneumatic cylinder that puts a field-adjustable stroke end directly on the machine. A rear-cap adjusting screw lets you fine-tune the stroke by up to 30 mm without swapping the cylinder—ideal for commissioning trials, format changeovers, or taking up wear. The 63 mm bore generates 1559 N of push force at 0.5 MPa, driven by a 20 mm diameter piston rod.
This model is configured with a TC centre trunnion mount (supplied with the TCM1 bracket, order code F-SC63TC), making it suitable for pivoting applications. It uses the standard PT1/4 port and TPU seals for a -20 to +70 °C operating range. The body length A(SCJ) is 197 mm, slightly longer than the fixed-stroke SC equivalent to house the adjustment mechanism. Genuine AirTAC build quality ensures consistent cushioning and repeatable stroke settings.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X100-30TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 100 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. |
| ×100 | 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.
A technician adjusts the rear screw to dial in the exact stopping position of a pusher arm during a new product changeover, eliminating the need to fabricate custom mechanical stops.
On a clamping fixture, the stroke is periodically shortened via the adjusting screw to compensate for the gradual wear of a gripper pad, maintaining consistent clamping force without replacing the cylinder.
The cylinder pivots a diverter gate on a conveyor. The centre trunnion mount allows the cylinder body to swing, while the adjustable stroke sets the precise gate angle for reliable product sorting.
Step up to an 80 mm bore (2513 N push at 0.5 MPa) if the 1559 N from this SCJ63 is marginal for your load. If your application requires a fixed, non-adjustable stroke, the standard SC63X100 is a simpler and more cost-effective alternative. For direct replacement, match the 63 mm bore, 100 mm nominal stroke, 30 mm adjust range, PT1/4 port thread, and TC centre trunnion mounting. This cylinder does not include a magnet; if you need piston position sensing, select the -S variant. For strokes of 300 mm or more, evaluate side-loading and rod buckling—consider adding an external guide rail or switching to a guided cylinder assembly.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the cylinder provides 1559 N of push force and 1402 N of pull force. The maximum push force at 0.9 MPa is 2805 N. The pull force is lower because the 20 mm piston rod reduces the effective piston area on the return stroke.
Yes, provided the mounting style is compatible. This SCJ63X100-30TC is a direct replacement for another AirTAC SCJ63 cylinder with a 100 mm nominal stroke, 30 mm adjust range, TC centre trunnion mount, and PT1/4 ports. It is not dimensionally interchangeable with ISO 15552 cylinders. The adjustable stroke allows you to fine-tune the end position, which a fixed-stroke SC63 cannot do.
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