The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X200-75SH is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø80mm bore, 200mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X200-75SH is an 80 mm bore adjustable-stroke cylinder delivering 2513 N of push force at 0.5 MPa, with a 25 mm rod and a generous 75 mm field-adjustable range via the rear-cap screw. This model is equipped with a built-in magnet for direct mounting of CMSG/DMSG sensors and high-temperature Viton seals, extending its operating range from 0 to +150 °C.
Its tie-rod construction provides a robust platform for applications requiring frequent stroke-end adjustments, such as format changeovers or commissioning trials. The PT3/8 ports and 28 mm air cushion ensure smooth deceleration, while the 239 mm body length (A dimension) keeps the package compact for its 200 mm nominal stroke.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X200-75SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 75 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×200 | Nominal (maximum) stroke length in mm. |
| -75 | 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.
Quickly adjust the end position for different product sizes on packaging or sorting lines without replacing the cylinder, saving significant downtime.
With Viton seals rated to +150 °C, this cylinder reliably operates in autoclaves, foundries, or near heat-sealing equipment where standard seals would fail.
Fine-tune the stroke end during initial machine setup or compensate for mechanical wear over time, ensuring consistent part contact and process quality.
Choose this SCJ80 when you need to fine-tune a 200 mm stroke by up to 75 mm on the machine. For higher force, step up to the 100 mm bore, which provides 3927 N of push at 0.5 MPa. If your application does not require field adjustability, a fixed-stroke SC80X200 is a simpler alternative. For a direct replacement, match an SCJ80 with a 200 mm nominal stroke, a -75 adjust range, PT3/8 ports, and the -S magnet option. Since the stroke is 200 mm, side-loading is typically manageable, but for long-term wear resistance, ensure the load is guided externally.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. The maximum push force at the 0.9 MPa operating limit is 4523 N. The theoretical force at 1.0 MPa is 513 kgf.
No. Like all standard pneumatic cylinders, the SCJ80X200-75SH will not hold its position if air pressure is lost or the valve is centered. The adjustable screw only sets the stroke end point. For load holding, you must add an external rod lock or a pilot-operated check valve.
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