The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X25-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø80mm bore, 25mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X25-10S is an 80 mm bore, double-acting, single-rod pneumatic cylinder with a rear adjusting screw that provides up to 10 mm of field-adjustable stroke-end reduction. This allows fine-tuning of the piston's stop position without swapping the cylinder, ideal for commissioning and wear take-up. The built-in magnet enables direct mounting of CMSG/DMSG/EMSG sensors for reliable, non-contact position feedback.
At 0.5 MPa, this cylinder delivers 2513 N of push force and 2268 N of pull force, placing it in a high-force class for clamping and pressing tasks. The 25 mm rod, PT3/8 ports, and 28 mm air cushion ensure smooth deceleration. Its body length A(SCJ) is 239 mm, slightly longer than a fixed-stroke SC of the same bore to accommodate the adjustment mechanism.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X25-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 25 mm |
| Stroke adjustment | Up to 10 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. |
| ×25 | Nominal (maximum) stroke length in mm. |
| -10 | 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 10 mm adjustment screw lets technicians quickly fine-tune the end-stop position during machine commissioning, eliminating the need to shim or reposition the entire cylinder for small positional corrections.
The built-in magnet allows CMSG/DMSG sensors to confirm the clamp has reached its adjusted end position, providing a cost-effective, high-force (2513 N push) clamping solution for assembly fixtures.
In high-cycle applications, the adjustable stroke can be used to compensate for mechanical wear in tooling or grippers over time, maintaining consistent part contact without immediate component replacement.
Choose this SCJ80 model when you need the 2513 N push force of an 80 mm bore but require the ability to dial in the exact stroke end position within a 10 mm window. If the application demands a fixed, non-adjustable stroke, the standard SC80 cylinder is a more economical choice. For higher force, step up to the SCJ100 bore, which provides 3927 N of push force at 0.5 MPa.
A direct replacement must match the 80 mm bore, 25 mm nominal stroke, 10 mm adjustment range, PT3/8 ports, and the -S magnet option. This SCJ cylinder accepts the SCJ mounting subset: FA front flange, LB foot mount, or TC centre trunnion with TCM1 bracket. For strokes of 300 mm or more, consider an external guide to prevent side-loading and rod bending.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the cylinder generates 2513 N of push force (using the full 80 mm bore area) and 2268 N of pull force (which subtracts the 25 mm rod area). The maximum push force at 0.9 MPa is 4523 N.
You can replace a fixed-stroke SC80 cylinder with the SCJ80X25-10S if you need the 10 mm adjustable stroke feature. The replacement must match the 80 mm bore, PT3/8 ports, and the -S magnet option. Ensure your mounting is from the SCJ subset (FA, LB, or TC).
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