Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX30-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 30mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke30 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10
The AirTAC SAIJ40X30-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 30 mm travel by up to 10 mm for a precise 20-30 mm usable window. The extruded aluminum barrel features sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later.
This variant features an SUS420J2 stainless steel rod (code A) for improved corrosion resistance and uses PT tapered port threads with a G1/4 connection. The rear stopper acts purely as a travel end setter, not a load lock, meaning live air is required to maintain position. It supports the standard SAIJ mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10 Is Used
Precision End-Stop Tuning
Dial in the exact 20 to 30 mm travel distance during machine commissioning to perfect the seating position of delicate components.
Product Size Changeover
Quickly adjust the rear stopper screw to accommodate slightly different product lengths on a packaging line without changing cylinders.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10 the Right Cylinder?
The 10 mm adjustment range is perfect for applications requiring fine end-position tuning during commissioning without swapping out a fixed-stroke SAI cylinder. Because the stroke is only 30 mm, external side-load guides are less critical, though the M12x1.25 rod thread handles standard loads well.
If your machine layout requires holding a load without continuous air pressure, note that the SAIJ adjuster is only a stop and not a brake; you would need to step up to an SAIL locking cylinder or an external pilot-operated check valve. To match this exact ISO 15552 interchangeable footprint, specify a 40 mm bore, 30 mm stroke, 10 mm adjustment, PT port thread, SUS420J2 rod, and no magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-10 FAQ
The rear adjuster screw allows you to shorten the effective travel by up to 10 mm, creating a 20-30 mm usable stroke window. It acts as a physical stop to fine-tune the end position without needing external stops.
At 0.7 MPa, the push force increases to 879 N.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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