The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X350-100S 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, 350mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X350-100S is an 80 mm bore double-acting single-rod pneumatic cylinder with a rear adjusting screw that provides up to 100 mm of field-adjustable stroke reduction. This allows you to fine-tune the end position for commissioning, format changes, or wear compensation without swapping the cylinder. The 25 mm diameter piston rod generates 2513 N of push force and 2268 N of pull force at 0.5 MPa, with a maximum push of 4523 N at 0.9 MPa.
This model includes a built-in magnet (suffix -S), enabling direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for reliable end-of-stroke detection. The body length A(SCJ) is 239 mm, and the cylinder features an adjustable air cushion of 28 mm for smooth deceleration. With a PT3/8 port and M20x1.5 rod thread, it suits medium-duty positioning tasks where stroke-end flexibility is critical.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X350-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 350 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. |
| ×350 | 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.
Quickly adjust the push stroke for different box or carton sizes on a packaging machine without mechanical stops. The 100 mm adjustment range handles a wide variety of formats, reducing changeover time.
Fine-tune the clamping stroke to accommodate varying workpiece thicknesses in a CNC or welding fixture. The 2513 N push force at 0.5 MPa provides a secure hold, and the built-in magnet confirms clamp position.
Dial in the exact push distance for a pallet layer-forming pusher. The 100 mm screw adjustment compensates for pallet build-up tolerances, ensuring consistent layer alignment without reprogramming the controller.
Choose the SCJ80X350-100S when your application requires a nominal 350 mm stroke with the ability to shorten the end position by up to 100 mm in the field. If your force requirement is lower, the 63 mm bore SCJ63 series provides 1559 N of push at 0.5 MPa; for higher force, the 100 mm bore SCJ100 series delivers 3927 N. A fixed-stroke SC cylinder is a better choice if the stroke never needs adjustment, as it is mechanically simpler.
For strokes of 350 mm, side-loading can cause rod bending or uneven seal wear. If the load is not guided externally, consider adding an external guide rail or switching to a guided cylinder. As a direct replacement, match the 80 mm bore, 350 mm nominal stroke, 100 mm adjust range, PT port thread, basic mounting, and the built-in magnet configuration of this SCJ80X350-100S.
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 pull force is lower because the rod reduces the effective piston area on the return stroke.
The rear-cap screw mechanically limits the piston's stroke end position, shortening the nominal 350 mm stroke by up to 100 mm. It is a position setting, not a speed or force adjuster. For speed control, use external flow control valves in the cylinder ports.
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