The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X180-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø80mm bore, 180mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X180-100S is an 80 mm bore double-acting single-rod cylinder with a 100 mm rear adjusting screw, giving you a field-tunable stroke end from 80 mm up to the nominal 180 mm. It delivers 2513 N of push force at 0.5 MPa and 4523 N at 0.9 MPa, making it a strong candidate for medium-to-heavy pneumatic positioning tasks where the final stroke length must be dialled in precisely during commissioning.
This model includes a built-in magnet (-S suffix), so you can mount CMSG/DMSG/EMSG reed or solid-state sensors directly on the tie-rod barrel for end-of-stroke or mid-stroke position feedback. The 25 mm piston rod, PT3/8 ports, and 28 mm air cushion provide reliable deceleration, while the 239 mm body length (A dimension) keeps the footprint compact for an 80 mm bore adjustable-stroke cylinder.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X180-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 180 mm |
| Stroke adjustment | Up to 100 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. |
| ×180 | Nominal (maximum) stroke length in mm. |
| -100 | 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.
Dial in the exact stroke end on a new assembly line. The 100 mm adjustment range lets commissioning engineers quickly set the optimal end position for a pusher or stop without machining spacers or reprogramming a servo.
Adjust the stroke for different product sizes on a packaging or sorting conveyor. The rear screw allows operators to change the stroke end in minutes, reducing downtime between batches.
Take up mechanical wear in a clamping or pressing fixture over time. As tooling wears, the stroke can be extended slightly via the adjusting screw to maintain consistent contact force and position.
Choose the SCJ80X180-100S when you need to fine-tune the stroke end by up to 100 mm without swapping cylinders—ideal for format changeovers or wear take-up. If you need more force, step up to the 100 mm bore SCJ100 series (3927 N push at 0.5 MPa); if space is tighter and force requirements are lower, the 63 mm bore SCJ63 (1559 N push) may fit. For applications where the stroke is fixed and never needs adjustment, the standard SC80 fixed-stroke cylinder is a simpler, lower-cost alternative.
For a direct replacement, match an AirTAC SCJ adjustable-stroke cylinder with an 80 mm bore, 180 mm nominal stroke, 100 mm adjust range, PT3/8 ports, basic mounting, and the -S magnet. The 180 mm stroke is well within the 1500 mm maximum for this bore, so rod bending from side loads is manageable, but for any off-axis force, add an external linear guide or switch to a guided cylinder.
Adjustable-stroke checklist
At the standard operating pressure of 0.5 MPa, the push force is 2513 N and the pull force is 2268 N (pull is lower due to the 25 mm rod area). At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 5026 N, though AirTAC rates the maximum practical push at 0.9 MPa, which is 4523 N.
It is a direct form-and-function replacement for another AirTAC SCJ80 cylinder with a 180 mm nominal stroke and 100 mm adjust range, PT3/8 ports, and a magnet. If you are replacing a different brand, you must verify the bore, stroke, adjust range, port thread, and mounting interface match, as the SCJ is a tie-rod design and is not dimensionally interchangeable with ISO 15552 cylinders.
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