Airtac SAIJ40 Adjustable Cylinder SAIJ40BX100-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX100-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 100mm 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
- Stroke100 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX100-10S
The AirTAC SAIJ40X100-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 628 N of push force at 0.5 MPa and features a 16 mm SUS304 stainless steel rod. The built-in rear stopper allows you to trim the effective travel, creating a 90-100 mm usable stroke window for precise end-position tuning during commissioning.
This variant includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, and uses PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides. The rear adjuster functions strictly as a travel stop to set deceleration, not as a lock, so live air is required to hold the load.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX100-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX100-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 SAIJ40BX100-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SAIJ40BX100-10S Is Used
End-Stop Tuning
Dial in the exact 90 to 100 mm end position during machine commissioning without swapping cylinders.
Product Changeover
Quickly adjust the stroke by up to 10 mm on a packaging line when handling slightly different product sizes.
Sensor-Ready Positioning
Leverage the integrated magnet with DMSE electronic sensors for precise position feedback on adjustable stops.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX100-10S the Right Cylinder?
Choose this 40 mm bore when an application requires 628 N push force at 0.5 MPa, stepping up from a 32 mm bore (402 N) if you need extra thrust, or down from a 50 mm bore (982 N) to save space. The 10 mm adjustable window is ideal for fine-tuning a 100 mm stroke without adding external stops. For load-holding without air pressure, use a SAIL or BSAI cylinder instead.
When replacing an ISO 15552 cylinder, match the 40 mm bore, 100 mm stroke, 10 mm adjustment, PT port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR.
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 SAIJ40BX100-10S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. It can reach up to 1130 N push force at 0.9 MPa.
The rear adjuster acts as a stopper that lets you shorten the 100 mm nominal stroke by up to 10 mm, providing a usable travel window of 90-100 mm. It sets the travel end but does not lock the load without live air pressure.
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