The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X80-75TC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø80mm bore, 80mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X80-75 is an 80 mm bore double-acting single-rod pneumatic cylinder with a field-adjustable stroke end. A rear-cap adjusting screw lets you shorten the stroke end by up to 75 mm without removing the cylinder, making it ideal for commissioning trials, format changeovers, and wear take-up on production machinery. At 0.5 MPa, it delivers 2513 N of push force and 2268 N of pull force.
This model is configured with a centre trunnion (TC) mount, supplied with the TCM1 bracket, allowing the cylinder to pivot and absorb side loads in swinging applications. The 25 mm diameter piston rod and 28 mm air cushion provide reliable deceleration, while the PT3/8 port and standard TPU seals suit filtered-air operation from -20 to +70 °C. The body length A(SCJ) is 239 mm.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X80-75TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 75 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. |
| ×80 | Nominal (maximum) stroke length in mm. |
| -75 | 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 stroke end stop for different product sizes on packaging or filling lines, reducing downtime between batches.
Fine-tune the actuator end position during machine build and commissioning without needing to swap cylinders or fabricate external hard stops.
Compensate for tooling or gripper wear over time by adjusting the screw to maintain precise end-of-stroke positioning in material handling systems.
Choose the SCJ80X80-75 when you need to fine-tune the 80 mm stroke end position on the machine. If your force requirement is lower, stepping down to a 63 mm bore reduces push force to 1559 N at 0.5 MPa; for higher force, the 100 mm bore delivers 3927 N. For a fixed-stroke application without the need for adjustment, the standard SC80X80 is a simpler alternative. This SCJ matches replacement for an AirTAC SCJ80X80-75 with PT threads and TC mount; ensure the -75 adjust range is correct for your setup.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 4523 N. The pull force is lower due to the 25 mm piston rod area.
A screw in the rear cap sets the stroke end position. You can shorten the nominal 80 mm stroke by up to 75 mm in the field. It only adjusts the stroke end stop; it does not change the cylinder's force output or speed.
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