Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 105mm 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
- Stroke105 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-100S
The AirTAC SAIJ40X105-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 5-105 mm usable travel window. Delivering 628 N of push force at 0.5 MPa, it is equipped with a SUS304 stainless steel rod for superior corrosion resistance and an integrated magnet for CMSE and DMSE sensors. The PT tapered port thread ensures a tight, reliable pneumatic connection.
Because the adjuster acts as a retract-end stop rather than a lock, live air pressure is required to maintain the load position. For true load-holding without continuous air, consider the SAIL or BSAI series. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR options found on standard cylinders.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 105 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 SAIJ40BX105-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×105 | 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 SAIJ40BX105-100S Is Used
End-Position Tuning
Dial in the exact retract stop during machine commissioning without adding external physical stops or changing the entire cylinder.
Product Changeover
Quickly adapt the 5-105 mm travel window on automated lines when handling different product sizes or varying material thicknesses.
Corrosive Environments
Leverage the SUS304 stainless steel rod and adjustable stroke for precise, repeatable clamping in washdown or corrosive manufacturing settings.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-100S the Right Cylinder?
Choose this 40 mm bore when you need more force than the 32 mm bore (402 N push at 0.5 MPa) but want to avoid the bulk of a 50 mm cylinder. The 100 mm adjustment range is ideal for machine setups requiring exact end-position tuning during commissioning or product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. With a 105 mm stroke, side loads are minimal, but ensure the M12x1.25 rod thread is properly aligned to prevent binding.
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 SAIJ40BX105-100S FAQ
The rear adjuster screw lets you shorten the nominal 105 mm stroke by up to 100 mm, providing a usable travel window of 5 to 105 mm to fine-tune the retract end position.
It provides 628 N of push force and 528 N of pull force at 0.5 MPa, reaching 1130 N push at 0.9 MPa.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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