Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 350mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke350 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S
The AirTAC SAIJ40X350-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 340-350 mm usable travel window, allowing you to trim the nominal 350 mm stroke by up to 10 mm during commissioning. Delivering 628 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod and includes a magnet for position sensing.
This model features PT tapered ports and utilizes an extruded aluminum barrel with sensor grooves on both sides. The rear adjustment screw functions strictly as a mechanical stop to fine-tune the end position without adding external stops, while the integrated air cushions handle deceleration. It does not hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 SAIJ40BX350-10S Is Used
Machine Changeover
Dial in the 340-350 mm stroke window during product size changes to set new end positions without physically swapping cylinders.
End-Stop Calibration
Fine-tune the retract position at commissioning using the rear screw, hitting exact mechanical stops without adding external shims.
Diversion Pushing
Pushes packages with 628 N of force at 0.5 MPa, using the 10 mm adjustment to compensate for slight variations in conveyor alignment.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S the Right Cylinder?
Choose this 40 mm bore cylinder when an application requires 628 N push force at 0.5 MPa but demands precise end-position tuning; if you need greater thrust, stepping up to the 50 mm bore yields 982 N. The adjustable 340-350 mm travel window is ideal for machine setups requiring variable end stops or product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. For a drop-in ISO 15552 replacement, match the 40 mm bore, 350 mm stroke, 10 mm adjustment, PT port, and -S magnet.
Because the 350 mm stroke is relatively long, the 16 mm rod should be guided externally to prevent excessive side-loading and premature seal wear. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. If your application requires true load-holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ40BX350-10S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective travel from the nominal 350 mm down to 340 mm. It is a stop, not a lock, and the cylinder still requires live air to hold the load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40BX350-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.