Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 230mm 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
- Stroke230 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-100S
The AirTAC SAIJ40X230-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from the 230 mm nominal stroke to a 130 mm minimum. This yields a 100 mm adjustable window for precise end-position tuning during commissioning. Delivering 628 N of push force at 0.5 MPa, it fits medium-duty workflows.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and includes a piston magnet for position sensing with AirTAC CMSE (reed) and DMSE (solid-state) switches. The extruded aluminum barrel includes sensor grooves on both sides, and the G1/4 PT port ensures reliable pneumatic connectivity.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 230 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 SAIJ40BX230-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×230 | 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 SAIJ40BX230-100S Is Used
Variable End-Stop Positioning
Dial in the exact retract position within the 130-230 mm window during machine setup without adding external physical stops.
Product Size Changeover
Quickly adapt the cylinder travel on packaging lines to accommodate different package lengths on the fly.
Precision Assembly Pressing
Use the fine rear adjustment to set precise pressing depths for component insertion tasks.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-100S the Right Cylinder?
Select this 40 mm bore model when your application requires a 628 N push force at 0.5 MPa; step down to a 32 mm bore (402 N push) for lighter loads, or up to a 50 mm bore (982 N push) when you need higher thrust. The 100 mm adjustment range is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder.
Because the 230 mm stroke exceeds 300 mm total travel when fully extended, ensure you use an external guide to prevent excessive side-loading on the M12x1.25 rod thread. The rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ40BX230-100S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm. This creates a usable travel window between 130 mm and 230 mm, letting you fine-tune the end position at commissioning without changing the cylinder.
At 0.5 MPa operating pressure, it provides 628 N of push force and 528 N of pull force. At the maximum 1.0 MPa pressure, the push force increases to 1130 N.
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