The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X200-30S 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. Ø80mm bore, 200mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X200-30S is an 80 mm bore double-acting single-rod cylinder with a field-adjustable stroke end. Its rear-cap screw provides up to 30 mm of fine-tuning, letting you dial in the exact stroke position for commissioning or format changes without swapping the cylinder. The 25 mm rod and PT3/8 ports deliver a robust 2513 N push force at 0.5 MPa.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke detection. With a 28 mm air cushion and a body length of 239 mm, it is a practical drop-in solution for applications requiring both positional flexibility and sensor feedback.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X200-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 30 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. |
| -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.
Quickly adjust the end stop for different product sizes on packaging or labeling lines, reducing downtime between batches.
Fine-tune the actuator's stroke on a new assembly machine to perfectly align with mating tooling without needing custom spacer blocks.
Periodically adjust the stroke end to compensate for mechanical wear in grippers or clamps, maintaining consistent clamping force over time.
Choose this 80 mm bore when your application needs more force than the SCJ63 (1559 N push at 0.5 MPa) but does not require the bulk of the SCJ100 (3927 N). If you need a fixed, repeatable stroke without field adjustment, the standard SC series is a simpler alternative. For a direct replacement, match the 80 mm bore, 200 mm nominal stroke, 30 mm adjust range, PT port thread, basic mounting, and the -S magnet option.
For this 200 mm stroke, ensure the rod is guided externally if significant side loads are present, or consider a guided cylinder to prevent rod bending and premature seal wear.
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.
A standard SC80 has a fixed stroke and lacks the rear adjusting screw. You can replace it only if you no longer need the field-adjustable stroke feature. For a true drop-in replacement, use another SCJ80X200-30S with the same magnet option.
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