The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X950-100S 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, 950mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The AirTAC SCJ80X950-100S is a double-acting, single-rod pneumatic cylinder that provides a field-adjustable stroke end via a rear-cap screw. With an 80 mm bore and a 25 mm rod, it delivers 2513 N of push force at 0.5 MPa, making it suitable for heavy-duty positioning tasks where the end-stop needs fine-tuning during commissioning or format changes. The -100 adjustment range allows operators to shorten the nominal 950 mm stroke by up to 100 mm without replacing the cylinder.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG/DMSG/EMSG sensors for reliable, non-contact position feedback. The tie-rod construction uses a PT3/8 port and an M20x1.5 rod thread, with a 28 mm air cushion to decelerate the piston smoothly. The body length A(SCJ) is 239 mm, and the maximum standard stroke for this bore is 1500 mm.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X950-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 950 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. |
| ×950 | 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.
Fine-tune the end position of a long-stroke material stop on a conveyor during initial machine setup, using the 100 mm adjustment range to dial in the exact stopping point without mechanical modifications.
Quickly adapt a packaging machine's pusher stroke for different box sizes. The rear adjusting screw allows operators to shorten the 950 mm stroke to accommodate a new product format in minutes.
Compensate for mechanical wear in a clamping or pressing fixture. As tooling pads wear down over time, the adjustable stroke can be incrementally extended to maintain consistent clamping force and position.
Choose the SCJ80X950-100S when you need a robust, sensor-ready actuator with an adjustable stroke end for a long 950 mm movement. If 2513 N of push force at 0.5 MPa is insufficient, stepping up to a 100 mm bore provides 3927 N. For applications that don't require stroke adjustment, a fixed-stroke SC80X950-S cylinder is a direct alternative. For a drop-in replacement, match the 80 mm bore, 950 mm nominal stroke, -100 adjust range, PT3/8 port, basic mounting, and the -S magnet option.
At a 950 mm stroke, rod deflection under side load is a critical consideration. To prevent rod bending and premature seal wear, always guide the load externally with a linear rail or use a guided cylinder if the application introduces lateral forces.
Adjustable-stroke checklist
At 0.5 MPa operating pressure, the push force is 2513 N and the pull force is 2268 N. The force increases to 4523 N of push force at the maximum operating pressure of 0.9 MPa. The pull force is lower due to the area of the 25 mm piston rod.
A rear-cap screw sets the stroke end position, allowing you to shorten the 950 mm nominal stroke by up to 100 mm. It is a mechanical stop for the piston, not a locking device. The cylinder will not hold its position if air pressure is lost; an external rod lock or pilot-operated check valve is required for load holding.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.