Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-30
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX30-30 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 SAIJ40AX30-30
The AirTAC SAIJ40X30-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 30 mm stroke that can be dialed back by up to 30 mm, yielding a highly flexible 0-30 mm usable travel window for exact end-position tuning.
This variant uses a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE or DMSE switches, and the rear adjuster acts purely as a mechanical stop, meaning live air pressure is required to maintain position.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-30 |
|---|---|
| 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 SAIJ40AX30-30
| 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 SAIJ40AX30-30 Is Used
Changeover Calibration
Dial in the 0-30 mm travel window during product size changeovers without replacing the cylinder or repositioning hard stops.
Precision Clamping
Apply 628 N of clamping force at 0.5 MPa while using the rear screw to compensate for material thickness variations.
End-Stop Trimming
Fine-tune the exact retraction end-point at machine commissioning to prevent overshoot in short-stroke assembly tasks.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-30 the Right Cylinder?
The adjustable stroke is perfect for machine changeovers, letting you fine-tune the end-stop without swapping cylinders or adding external stops.
For ISO 15552 replacement, match the 40 mm bore, 30 mm stroke, PT tapered port thread, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is under 300 mm, side-load stress is minimal, but always ensure the load is guided to prevent rod binding. If you need to hold position without live air, use an SAIL or BSAI cylinder instead, as the SAIJ adjuster is not a lock.
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 SAIJ40AX30-30 FAQ
At the maximum 1.0 MPa pressure, it delivers up to 128 kgf.
The nominal stroke is 30 mm, and the rear adjuster allows you to shorten the stroke by up to 30 mm. This creates a 0-30 mm adjustable travel window, letting you set any exact end-position within that range.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40AX30-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.