The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X80-30S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø80mm bore, 80mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X80-30S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, providing a 30 mm fine-tuning range on the 80 mm nominal stroke. With an 80 mm bore, it delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa, making it a robust actuator for mid-range industrial tasks. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection without external brackets.
This tie-rod cylinder features a 25 mm diameter piston rod, PT3/8 ports, and an M20x1.5 rod thread for secure tooling attachment. The adjustable air cushion, with a 28 mm cushion length, decelerates the piston smoothly at both ends. The rear adjusting screw sets the stroke end position, which is ideal for commissioning trials or format changeovers where the stopping point must be dialed in precisely without swapping the cylinder.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X80-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 30 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. |
| -30 | 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.
Fine-tune the stroke end during machine commissioning without removing the cylinder. The 30 mm adjustment range lets technicians dial in the exact stopping position for grippers or pushers.
Quickly adapt a packaging machine to a new box size. The rear screw adjusts the stroke end to match different product dimensions, reducing downtime during format changes.
Compensate for mechanical wear in tooling or fixtures over time. The adjustable stroke can be extended slightly to maintain consistent engagement without replacing the entire actuator.
Select the SCJ80X80-30S when you need to fine-tune the stroke end by up to 30 mm on an 80 mm bore platform. If your force requirement grows, stepping up to a 100 mm bore provides 3927 N of push force at the same 0.5 MPa. For a fixed, non-adjustable stroke, the standard SC80X80 is a simpler alternative. This model is a direct replacement for another AirTAC SCJ80X80-30S with a magnet, PT ports, and basic mounting.
For strokes of 80 mm, side-loading is typically minimal, but always ensure the load is guided externally if any radial force is present. The built-in magnet simplifies adding reed or solid-state sensors for position feedback, eliminating the need for external limit switches.
Adjustable-stroke checklist
At 0.5 MPa, it generates 2513 N of push force and 2268 N of pull force. The push force is higher because the single rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 5026 N.
Yes, this is a genuine AirTAC SCJ80X80-30S with a magnet. It is a direct dimensional and performance match for any AirTAC SCJ80X80-30S cylinder with PT ports and basic mounting. Verify that your existing sensor type is compatible with the CMSG/DMSG/EMSG series.
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