The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X200-30STC 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, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X200-30STC is a tie-rod, double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that provides a 30 mm field-adjustable stroke-end range. With a 63 mm bore and 200 mm nominal stroke, it delivers 1559 N of push force at 0.5 MPa, making it a versatile actuator for mid-range industrial tasks where the final stop position needs fine-tuning during commissioning or changeovers.
This specific model includes a built-in magnet (S) for direct mounting of CMSG/DMSG/EMSG sensors and a centre trunnion pivot mount (TC) with the TCM1 bracket for swinging loads. The 20 mm rod, PT1/4 ports, and 28 mm air cushion provide reliable deceleration, while the body length A(SCJ) of 197 mm ensures a compact footprint for its force class.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X200-30STC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 200 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. |
| ×200 | 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.
Quickly adjust the end stop for different product sizes on packaging or filling lines without dismantling the machine, saving significant setup time.
Fine-tune the actuator's stopping position during initial machine build and testing to perfectly align with mating tooling or fixtures.
Take up mechanical play or compensate for tooling wear over time by slightly extending the stroke end, maintaining consistent process quality.
Choose the SCJ63 bore for push forces up to 1559 N at 0.5 MPa; step up to the 80 mm bore (2513 N push) if your application requires significantly more force, or down to the 50 mm bore (982 N push) to save space and air consumption. The 30 mm adjustable stroke is ideal for fine-tuning end positions without swapping the cylinder, but if your stroke is fixed and never needs adjustment, the standard SC63X200 fixed-stroke cylinder is a simpler, more cost-effective alternative. For this 200 mm stroke, side-loading is generally manageable, but ensure the rod is aligned with the load path. The centre trunnion mount (F-SC63TC) is correctly specified for applications requiring the cylinder body to pivot during actuation.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the push force is 1559 N and the pull force is 1402 N. The maximum push force at 0.9 MPa is 2805 N. The push force is higher because the single rod reduces the effective piston area on the return stroke.
Yes, it is a direct replacement for another AirTAC SCJ63 cylinder with a 200 mm nominal stroke, 30 mm adjust range, PT ports, centre trunnion (TC) mount, and a magnetic piston. Ensure the mounting bracket (F-SC63TC) and sensor type are compatible with your existing setup.
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