The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-100TC 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 SCJ80X100-100TC is an 80 mm bore double-acting, single-rod tie-rod cylinder with a field-adjustable stroke end. Its rear-cap screw provides a full 100 mm of adjustment range, letting you fine-tune the stroke from 0 to 100 mm without changing the cylinder body. At 0.5 MPa, it delivers 2513 N of push force and 2268 N on the pull stroke, making it a strong mid-range actuator.
This model is configured with a centre trunnion (TC) mount for pivoting applications, supplied with the TCM1 bracket. The 25 mm diameter piston rod is threaded M20x1.5, and the ports are PT3/8. The adjustable air cushion, with a 28 mm cushion length, decelerates the piston smoothly. The body length A(SCJ) is 239 mm, slightly longer than a fixed-stroke SC of the same bore.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-100TC |
|---|---|
| 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.
The 100 mm adjustment screw allows technicians to quickly fine-tune the end-stop position during machine commissioning without swapping cylinders or adding external hard stops.
On packaging or assembly lines, operators can adjust the stroke end to accommodate different product sizes or formats, reducing changeover time and tooling costs.
In high-cycle clamping or pressing fixtures, the adjustable stroke can be periodically tweaked to compensate for pad or tooling wear, maintaining consistent clamping force and position.
Choose the SCJ80 when you need to dial in a precise stroke end on the machine, such as during commissioning or format changes. If your force requirement is lower, the 63 mm bore SCJ63 offers 1559 N push at 0.5 MPa; for more force, step up to the SCJ100 which provides 3927 N. This TC trunnion mount is ideal for applications where the cylinder body needs to swing through an arc.
For a direct replacement, match the 80 mm bore, 100 mm nominal stroke, 100 mm adjust range (-100), PT3/8 ports, and the TC centre trunnion mounting (F-SC80TC). If your application does not require stroke adjustability, a fixed-stroke SC80X100 cylinder is a simpler, more cost-effective alternative. Always ensure the load is guided externally if side forces are present.
Adjustable-stroke checklist
At the maximum operating pressure of 1.0 MPa, the theoretical push force is 5026 N. At the standard 0.7 MPa, it provides 3518 N of push force. The pull force is lower due to the single 25 mm rod, delivering 2268 N at 0.5 MPa.
Yes, this is a direct replacement for any AirTAC SCJ80 with a 100 mm nominal stroke, a 100 mm adjust range, PT ports, and centre trunnion (TC) mounting. Verify your existing bracket matches the F-SC80TC trunnion set.
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