Airtac SCJ40 Standard Cylinder SCJ40X90-10S
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X90-10S 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. Ø40mm bore, 90mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Nominal stroke90 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X90-10S
The SCJ40X90-10S is a double-acting, single-rod pneumatic cylinder with a rear adjusting screw that provides up to 10 mm of field-adjustable stroke-end control. At 0.5 MPa, it delivers 628 N of push force and 528 N of pull force, making it a capable mid-range actuator for tasks that require fine positional tuning without swapping the cylinder.
This model includes a built-in magnet (-S suffix), allowing CMSG/DMSG/EMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke detection. The 16 mm diameter rod, PT1/4 ports, and a 21 mm air cushion ensure smooth deceleration, while the 185 mm body length keeps the package compact for integration into machinery with limited space.
Airtac SCJ40 Standard Cylinder SCJ40X90-10S Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X90-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 90 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac SCJ40 Standard Cylinder SCJ40X90-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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.
Where the Airtac SCJ40 Standard Cylinder SCJ40X90-10S Is Used
Commissioning & Setup
Fine-tune the end position of a stop gate on a conveyor during initial machine setup, using the 10 mm adjustment screw to dial in the exact stopping point without mechanical rework.
Wear Compensation
Adjust the stroke end on a clamping fixture to compensate for pad wear over time, maintaining consistent clamping pressure without replacing the cylinder or adding shims.
Format Changeover
Quickly adapt the stroke of a pusher arm for different box sizes on a packaging line, using the rear screw to set a new end position for each product format.
Is the Airtac SCJ40 Standard Cylinder SCJ40X90-10S the Right Cylinder?
Step up to the SCJ50 series if your application demands more force; the 50 mm bore provides 982 N of push force at 0.5 MPa. If stroke adjustment is not required, the fixed-stroke SC40 cylinder is a simpler, more cost-effective alternative. For a direct replacement, match the 40 mm bore, 90 mm nominal stroke, 10 mm adjust range, PT port thread, and built-in magnet.
For this 90 mm stroke, side-loading is typically not a primary concern, but always ensure the load is guided and aligned with the rod axis to prevent premature seal wear and rod bending. If the application involves a pivoting movement, consider adding a TC centre trunnion mount.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ40 Standard Cylinder SCJ40X90-10S FAQ
At the standard 0.5 MPa operating pressure, the cylinder delivers 628 N of push force and 528 N of pull force. The maximum push force at the 0.9 MPa operating limit is 1130 N.
Yes, if you need the ability to fine-tune the stroke end. The SCJ40X90-10S has the same mounting footprint and port configuration as an SC40, but the body is slightly longer to house the adjusting screw. Ensure the 10 mm adjustment range is sufficient for your needs.
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