The AirTAC Airtac SCJ200 Standard Cylinder SCJ200X900-30 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. Ø200mm bore, 900mm nominal stroke, PT3/4 ports and adjustable end cushioning.
The SCJ200X900-30 is a double-acting, single-rod pneumatic cylinder engineered for heavy-duty applications requiring precise, field-adjustable stroke end positioning. With a 200 mm bore and a nominal stroke of 900 mm, the integrated rear-cap adjusting screw provides a 30 mm range to fine-tune the piston's end point, delivering a push force of 15708 N at 0.5 MPa. This model features a 40 mm diameter piston rod and PT3/4 port connections.
Built on a robust tie-rod design, the cylinder body has a length A(SCJ) of 342 mm and incorporates an adjustable air cushion of 33 mm for smooth deceleration. It operates within a standard pressure range of 0.15-1.0 MPa and temperatures from -20 to +70 °C, using 40 µm filtered air. The maximum push force reaches 28274 N at the 0.9 MPa operating limit, making it suitable for demanding industrial tasks.
| Model | Airtac SCJ200 Standard Cylinder SCJ200X900-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Nominal stroke | 900 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 33 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 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. |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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.
Allows engineers to dial in the exact end-stop position during initial machine setup, compensating for assembly tolerances in large-scale material handling gantries.
Quickly adapt the stroke end for different product sizes on heavy-duty palletizing or packaging lines without mechanical stop rework, reducing downtime.
Fine-tune the stroke end over the machine's life to account for wear in tooling or gripper fingers, maintaining consistent clamping or pressing force.
Select the SCJ200X900-30 when your application demands high force with the ability to make on-machine stroke adjustments without cylinder replacement. If higher force is needed, consider stepping up to the 250 mm bore, which provides 24544 N of push force at 0.5 MPa. For a fixed, non-adjustable stroke, the standard SC series is a direct alternative. This model is a direct replacement for any AirTAC SCJ200 cylinder with a 900 mm nominal stroke, 30 mm adjust range, PT threads, and basic mounting.
Given the 900 mm stroke length, careful consideration of side loading and potential rod buckling is critical. The 40 mm rod provides substantial rigidity, but for applications with significant off-axis loads, integrating an external guide rail or switching to a guided cylinder is strongly recommended to ensure long seal life and prevent rod damage.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 15708 N and the pull force is 15080 N. The maximum operating push force at 0.9 MPa is 28274 N. The theoretical maximum at 1.0 MPa is 3204 kgf.
The rear-cap screw mechanically limits the piston's stroke end within a 30 mm range. It is a position-setting device only and does not lock the piston or hold the load. If pressure is lost, the cylinder will drift; an external rod brake or pilot-operated check valve is required for load holding.
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