The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X175-10 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. Ø40mm bore, 175mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X175-10 is a double-acting, single-rod pneumatic cylinder from the AirTAC SCJ adjustable-stroke family, featuring a rear-cap adjusting screw that provides up to 10 mm of stroke-end retraction. This allows you to fine-tune the piston's stop position on the machine without swapping the cylinder or adding external hard stops, making it ideal for commissioning trials and format changeovers. With a 40 mm bore and 16 mm piston rod, it delivers 628 N of push force at 0.5 MPa, suitable for moderate clamping, pressing, and ejecting tasks.
This model has a nominal 175 mm stroke, which is well within the 1200 mm maximum standard stroke for the 40 mm bore. The cylinder body length A(SCJ) is 185 mm, and it uses PT1/4 ports with an M12x1.25 rod thread. The adjustable air cushion decelerates the piston smoothly at both ends, and the operating pressure range is 0.15-1.0 MPa. This basic configuration comes with a TPU seal, PT threads, and no magnet, offering a cost-effective solution for general-purpose industrial automation.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X175-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 175 mm |
| Stroke adjustment | Up to 10 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 adjustable stroke lets technicians dial in the exact end-stop position during machine commissioning, compensating for minor assembly tolerances without re-machining brackets or swapping cylinders.
On packaging or sorting lines, the stroke can be quickly adjusted to handle different product sizes or formats. The 175 mm nominal stroke provides ample reach, while the screw fine-tunes the final placement.
In clamping or pressing fixtures, the adjustable stroke end can be used to take up wear on tooling or contact surfaces over time, maintaining consistent clamping force without reprogramming the PLC.
Choose the SCJ40X175-10 when you need a 175 mm nominal stroke with the ability to shorten it by up to 10 mm for precise end-position tuning. If your force requirement is lower, stepping down to the 32 mm bore (402 N push at 0.5 MPa) saves space and air consumption. For higher force, the 50 mm bore delivers 982 N push. If you do not need field-adjustable stroke, the fixed-stroke SC series is a simpler, more economical alternative. For applications with high side loads, consider adding an external guide rail or switching to a guided cylinder to prevent rod bending.
For a direct replacement, match an AirTAC SCJ cylinder with a 40 mm bore, 175 mm nominal stroke, and a 10 mm adjustable range. Ensure the port thread is PT, the mounting style matches your current setup (basic, FA, LB, or TC), and the magnet option (-S) is present if you are using sensors. This model uses the standard TPU seal and PT ports.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 1256 N. Because it is a single-rod cylinder, the push force is always greater than the pull force due to the area of the 16 mm rod.
Yes, if you need the field-adjustable stroke feature. The SCJ40X175-10 has the same mounting footprint and port sizes as the standard SC40 series. Just ensure the 10 mm adjustment range is sufficient for your application and that the mounting type (basic, FA, LB, or TC) and port thread (PT) match your current setup.
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.