The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X130-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø50mm bore, 130mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X130-50 is a double-acting, single-rod pneumatic cylinder that puts fine stroke control directly in your hands with a 50 mm field-adjustable range. Operating on filtered air, this 50 mm bore cylinder delivers a push force of 982 N at 0.5 MPa, making it a robust choice for applications where the end position must be dialed in precisely on the machine.
A rear-cap adjusting screw lets you shorten the stroke end without dismounting the cylinder or adding external hard stops, which is invaluable during commissioning and format changeovers. The 20 mm piston rod and PT1/4 ports are standard for this bore, and the body length A(SCJ) is 194 mm, providing a compact yet powerful package.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X130-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 130 mm |
| Stroke adjustment | Up to 50 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, 21 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×130 | Nominal (maximum) stroke length in mm. |
| -50 | 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.
Technicians can fine-tune the actuator's end stop by up to 50 mm on the machine, eliminating the need to swap cylinders or fabricate shims during initial system bring-up.
Quickly adjust a pusher or stop gate for different product sizes on a packaging or assembly line. The 50 mm range covers multiple SKUs without mechanical refactoring.
In high-cycle clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear on tooling or seals over time, maintaining consistent process force and position.
Step up to a 63 mm bore (1559 N push at 0.5 MPa) if your load demands more force, or down to a 40 mm bore (628 N) for a lighter, more compact actuator. The SCJ is the right choice when you need to fine-tune the stroke end position; if your application has a fixed, unchanging stroke, the standard SC series offers a simpler, more cost-effective solution. For direct replacement, match this model with another AirTAC SCJ50X130-50 with PT ports and basic mounting. For strokes over 300 mm, consider an external guide to manage side loads and prevent rod bending.
Adjustable-stroke checklist
The cylinder provides a push force of 982 N at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa. The pull force is lower (825 N at 0.5 MPa) due to the area of the 20 mm piston rod.
The 50 mm adjustment is not a speed control. A rear-cap screw mechanically limits the piston's stroke end position. You can shorten the nominal 130 mm stroke by up to 50 mm in the field, giving you an effective stroke range of 80 mm to 130 mm.
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