The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X200-20SH 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. Ø80mm bore, 200mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X200-20SH is an 80 mm bore adjustable-stroke cylinder delivering 2513 N of push force at 0.5 MPa, with a 25 mm rod and PT3/8 ports. Its rear adjusting screw provides up to 20 mm of stroke-end fine-tuning, making it ideal for commissioning trials and format changeovers on medium-duty automation where the exact stop position must be dialled in on the machine.
This model is equipped with a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors and features a Viton (FKM) seal set, extending the operating temperature range to 0–150 °C for hot or aggressive environments. The tie-rod construction includes a 28 mm air cushion and a body length A of 239 mm, offering reliable deceleration within the 200 mm nominal stroke.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X200-20SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 20 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. |
| -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.
The 20 mm rear screw adjustment lets technicians dial in the exact end-stop position during machine setup, eliminating the need to shim or reposition the cylinder mounting.
Quickly adjust the stroke end to accommodate different product sizes on packaging or sorting lines, reducing downtime between batches without mechanical modifications.
With Viton seals rated for 0–150 °C, this cylinder is suited for hot presses, drying ovens, or foundry equipment where standard seals would degrade.
Choose the SCJ80X200-20SH when you need to fine-tune the stroke end by up to 20 mm without swapping the cylinder. If the 2513 N push force at 0.5 MPa is insufficient, stepping up to the 100 mm bore provides 3927 N; if the force is excessive, the 63 mm bore offers 1559 N. For applications requiring a fixed, non-adjustable stroke, the standard SC80X200 is a simpler alternative.
This cylinder replaces another AirTAC SCJ80 with a 200 mm nominal stroke, 20 mm adjust range, PT3/8 ports, basic mounting, magnet, and Viton seals. For strokes of 300 mm or more, consider an external guide or a guided cylinder to protect the 25 mm rod from side-load bending.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 4523 N. The pull force is lower due to the area of the single 25 mm rod.
A screw in the rear cap sets the stroke end position within a 20 mm range. The 200 mm in the model code is the nominal maximum stroke; the screw can shorten the extension by up to 20 mm. It does not adjust force or speed, only the piston's stop point.
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