The AirTAC Airtac SCJ200 Standard Cylinder SCJ200X500-20S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 mm range without swapping the cylinder. Ø200mm bore, 500mm nominal stroke, PT3/4 ports and adjustable end cushioning.
The SCJ200X500-20S is a double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that provides up to 20 mm of field-adjustable stroke-end trimming. With a 200 mm bore and 500 mm nominal stroke, it delivers a substantial 15708 N push force at 0.5 MPa (28274 N at the maximum operating pressure of 0.9 MPa), making it a powerful actuator for heavy industrial tooling. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors on the tie-rod barrel for reliable end-of-stroke detection.
This ISO 6430 class cylinder uses a 40 mm piston rod with M36x2 threads and PT3/4 ports, and features an adjustable pneumatic cushion to decelerate the 200 mm bore piston smoothly. The body length A(SCJ) is 342 mm, and the standard stroke range for this bore extends up to 1500 mm. The adjusting screw only sets the stroke end position within the 20 mm range—it does not alter the cylinder's force output or speed capability.
| Model | Airtac SCJ200 Standard Cylinder SCJ200X500-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Nominal stroke | 500 mm |
| Stroke adjustment | Up to 20 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. |
| ×500 | Nominal (maximum) stroke length in mm. |
| -20 | 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.
Fine-tune the final insertion depth of a large bearing or bushing press by adjusting the stroke end by up to 20 mm, compensating for part tolerance stack-ups without reprogramming the press controls.
Adjust the opening stroke of a material diverter gate on a conveyor for aggregate or scrap metal. The 20 mm range allows operators to quickly match the gate opening to different material sizes.
In a large welding fixture, use the rear screw to take up wear on a clamp pad or adjust the clamping stroke end for a new workpiece variant, ensuring consistent clamping force without mechanical shimming.
Choose the SCJ200 bore when your application requires push forces in the 15708 N class at standard plant air pressure. If your force requirement is lower, stepping down to the 160 mm bore (10053 N push at 0.5 MPa) can reduce air consumption and physical envelope. For applications needing a fixed, non-adjustable stroke, the standard SC200 series offers a simpler, more compact solution without the rear adjuster. When replacing an existing unit, match the 200 mm bore, 500 mm nominal stroke, 20 mm adjust range, PT3/4 port thread, and ensure the replacement carries the -S magnet option for sensor compatibility. For this 500 mm stroke, be mindful of side-loading on the 40 mm rod; if the load is not guided externally, consider adding an external guide rail or switching to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 15708 N and the pull force is 15080 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 28274 N. The pull force is lower because the 40 mm piston rod reduces the effective area on the return stroke.
Yes, provided the bore (200 mm), nominal stroke (500 mm), port thread (PT3/4), and magnet option (-S) all match. The SCJ200 body is slightly longer (A=342 mm) than the fixed-stroke SC200 to accommodate the rear adjusting mechanism. The 20 mm adjust range allows you to shorten the stroke end, so ensure the longer body length fits your machine envelope.
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