
The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-100SH 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, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X100-100SH is an 80 mm bore double-acting single-rod cylinder with a 100 mm field-adjustable stroke range. The rear-cap adjusting screw lets you fine-tune the stroke end position anywhere within that 100 mm window without swapping the cylinder, making it ideal for commissioning and format changeovers. This model includes a built-in magnet for sensor mounting and uses high-temperature Viton (FKM) seals rated for 0 to +150 °C.
At 0.5 MPa it delivers 2513 N of push force and 2268 N on the pull stroke, with a 25 mm diameter piston rod and PT3/8 ports. The body length A(SCJ) is 239 mm, and the adjustable air cushion decelerates the piston smoothly at stroke end. The Viton seal makes this unit suitable for hot or chemically aggressive environments where standard TPU would degrade.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-100SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 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. |
| ×100 | 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.
In ovens, autoclaves, or foundry equipment where ambient temperatures reach 150 °C, the Viton seals maintain integrity while the 100 mm adjustment screw lets operators fine-tune the actuator stroke end for different tooling or batch recipes without cooling the machine down.
On high-cycle welding or bonding fixtures, the adjustable stroke compensates for electrode or pad wear over time. The built-in magnet allows CMSG/DMSG sensors to confirm the adjusted end position, ensuring consistent clamp force even as the stroke setting is tweaked.
For bottling or packaging conveyors handling hot-filled products, the SCJ80X100-100SH provides a 100 mm adjustment band to reposition stops or diverters for different container sizes. The 2513 N push force at 0.5 MPa handles heavy gates without needing a cylinder swap.
Choose the SCJ80X100-100SH when you need to dial in a stroke end position precisely on an 80 mm bore platform, especially in high-temperature environments up to 150 °C. If your force requirement is lower, stepping down to a 63 mm bore reduces push force to 1559 N at 0.5 MPa; for more force, the 100 mm bore provides 3927 N. The adjustable stroke is a commissioning and changeover feature — if you only need a single fixed stroke, a standard SC80X100 cylinder is a simpler, lower-cost alternative.
This model is a direct replacement for another AirTAC SCJ80X100-100SH with PT 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 deflection and bending.
Adjustable-stroke checklist
At 0.5 MPa air pressure, the cylinder produces 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 0.9 MPa, push force reaches 4523 N. Because it is a single-rod cylinder, push force is always greater than pull force due to the rod area on the return side.
Only if you need the adjustable stroke feature. The SCJ body is slightly longer than a fixed-stroke SC of the same bore and nominal stroke to accommodate the rear adjusting screw. It will replace another SCJ80X100-100SH directly, but swapping an SC for an SCJ requires checking the longer overall length and ensuring you have clearance for the adjustment mechanism.
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