The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-40 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 mm range without swapping the cylinder. Ø80mm bore, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The AirTAC SCJ80X100-40 is a double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that lets you fine-tune the stroke end by up to 40 mm without swapping the unit. With a 25 mm rod and PT3/8 ports, it delivers 2513 N of push force at 0.5 MPa, making it a solid mid-range workhorse for applications needing on-machine stroke calibration.
This 80 mm bore cylinder features an adjustable air cushion (28 mm length) and a body length A of 239 mm. The stroke-end screw is purely mechanical—it sets the piston stop position and does not alter force output or speed. For position sensing, add the -S magnet option to use CMSG/DMSG sensors.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 40 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. |
| -40 | 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.
Adjust the 40 mm stroke range during initial machine setup to perfectly align end-effectors without re-mounting the cylinder body.
Quickly adapt the push stroke for different product sizes on a packaging line by turning the rear screw, reducing downtime between batches.
Take up mechanical play or seal wear over time by slightly extending the effective stroke, maintaining consistent part contact.
Choose the SCJ80X100-40 when you need to dial in a 100 mm stroke envelope on the fly, such as during commissioning or format changeovers. If you require more force, the 100 mm bore offers 3927 N push at 0.5 MPa; for a lighter, more compact solution, the 63 mm bore provides 1559 N. This adjustable-stroke model is the direct replacement for another AirTAC SCJ80X100-40 with PT threads and basic mounting.
For strokes of 100 mm, rod deflection is minimal under axial loads, but if the application introduces significant side forces, pair the cylinder with an external guide rail or consider a guided cylinder series to protect the rod and bearing.
Adjustable-stroke checklist
At 0.5 MPa, it generates 2513 N pushing and 2268 N pulling. The maximum push force at the 0.9 MPa operating limit is 4523 N. The adjusting screw does not change these force values.
Yes, if you no longer need adjustability. The SCJ80X100-40 matches the SC80X100 in bore and nominal stroke, but the SCJ body is slightly longer to house the screw mechanism. Ensure your mounting space accommodates the 239 mm body length.
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.