The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X200-30 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. Ø50mm bore, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X200-30 is a double-acting, single-rod pneumatic cylinder that puts 982 N of push force at 0.5 MPa into a compact tie-rod body, with a rear adjusting screw that lets you shorten the stroke end by up to 30 mm without removing the cylinder from the machine. Its 20 mm diameter piston rod and PT1/4 ports handle a 200 mm nominal stroke, and the built-in variable air cushion decelerates the load smoothly over the last 21 mm of travel.
Because the stroke is field-adjustable, one SCJ50X200-30 can replace several fixed-stroke cylinders during commissioning or format changeovers. The body length A(SCJ) is 194 mm, and the operating range of 0.15–1.0 MPa gives a theoretical maximum push of 1767 N at 0.9 MPa. This is a genuine AirTAC component, supplied with TPU seals and PT threads as standard.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X200-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 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, 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. |
| ×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.
Dial in the exact stroke end position during machine commissioning without swapping cylinders or machining external hard stops. The 30 mm adjustment range lets technicians fine-tune the actuator throw on the spot.
On packaging or assembly lines running multiple product sizes, the rear screw quickly resets the cylinder stroke for a new format. One SCJ50X200-30 adapts to different box heights or part lengths in seconds.
In clamping or pressing fixtures where tooling wears over time, the adjustable stroke takes up the slack. Operators can advance the stop point by a few millimetres to maintain consistent contact force without replacing the cylinder.
Choose the SCJ50X200-30 when you need a mid-range 50 mm bore with the ability to fine-tune the stroke end on the fly. If your load demands more force, stepping up to a 63 mm bore delivers 1559 N push at 0.5 MPa; if space is tight and you can accept less power, the 40 mm bore provides 628 N. The adjustable stroke makes this cylinder ideal for applications where the exact stop position must be dialled in after installation.
For a 200 mm stroke, ensure the rod is not subjected to high side loads—if lateral forces are present, pair the cylinder with an external guide rail or switch to a guided cylinder. This model replaces any AirTAC SCJ50X200-30 of the same bore, nominal stroke, 30 mm adjust range, PT ports, and basic mounting. If you do not need stroke adjustability, the fixed-stroke SC50X200 is a simpler alternative.
Adjustable-stroke checklist
At 0.5 MPa the push force is 982 N and the pull force is 825 N (the rod reduces the piston area on the return stroke). At the maximum operating pressure of 1.0 MPa, theoretical push force reaches 1767 N. Always size for your working pressure and include a safety factor.
Yes, the SCJ50X200-30 shares the same bore, rod diameter, port size, and mounting footprint as the SC50 series. The body is slightly longer to house the adjusting screw, so check clearance behind the rear cap. Ensure the 30 mm adjustment range covers your stroke variation needs.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.