The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X200-30S 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 SCJ50X200-30S is a double-acting, single-rod pneumatic cylinder that puts fine stroke-end tuning directly into the rear cap. Its 50 mm bore generates 982 N of push force at 0.5 MPa (1767 N at the 0.9 MPa maximum operating pressure), and the 30 mm adjusting screw lets you dial back the stroke end by up to 30 mm without removing the cylinder or adding external hard stops.
A built-in magnet (-S suffix) allows CMSG/DMSG/EMSG solid-state and reed sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The 20 mm diameter piston rod, PT1/4 port, and 21 mm air cushion work together for smooth deceleration, while the 194 mm body length (A dimension) keeps the package compact for a 200 mm nominal stroke unit.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X200-30S |
|---|---|
| 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.
During machine setup, technicians can tweak the stroke end by up to 30 mm with the rear screw to dial in the exact end-of-travel position for grippers, clamps, or pushers without re-plumbing.
On packaging or assembly lines, the adjustable stroke lets operators quickly adapt the cylinder's reach for different product sizes or box dimensions, reducing changeover downtime.
In high-cycle pressing or clamping stations, the 30 mm adjustment range can be used to take up mechanical wear on tooling or seals over time, maintaining consistent contact pressure.
Step up to the 63 mm bore SCJ63X200-30 if your application needs more force—it delivers 1559 N push at 0.5 MPa. For applications where the stroke never needs field adjustment, the fixed-stroke SC50X200 is a simpler, slightly shorter alternative. If the load creates significant side forces on the 20 mm rod at this 200 mm extension, consider adding an external guide rail or switching to a guided cylinder. This SCJ50X200-30S is a direct replacement for any AirTAC SCJ50X200-30S with PT ports, basic mount, and magnet, matching bore, nominal stroke, and adjust range exactly.
Adjustable-stroke checklist
At 0.5 MPa air pressure, the cylinder produces 982 N of push force and 825 N of pull force (the pull force is lower because the 20 mm rod reduces the effective piston area on the return stroke). At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N.
Yes, if you need the ability to adjust the stroke end. The SCJ50X200-30S shares the same 50 mm bore, 200 mm nominal stroke, and PT1/4 ports as the SC50X200, but its rear adjusting screw adds 30 mm of field-adjustable stroke-end reduction. Note the SCJ body is slightly longer to house the mechanism.
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.