Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 240mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke240 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-40S
The AirTAC SAIJ32X240-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 240 mm stroke that can be dialed back by up to 40 mm, giving you a precise 200-240 mm usable travel window for commissioning without external stops. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered ports. The extruded aluminum barrel integrates dual sensor grooves compatible with CMSE reed and DMSE electronic switches. The SAIJ mounting set omits FB, CA, CB, and CR brackets, offering Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 240 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×240 | 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 Adjustable Cylinder SAIJ32 SAIJ32AX240-40S Is Used
Machine Setup & Changeover
Fine-tune the 200-240 mm travel window during commissioning or product changeovers to dial in exact end positions without swapping cylinders.
Variable End Stops
Adjust the rear stopper on the fly to accommodate minor variations in package sizes or part lengths on a modular conveyor line.
Component Seating
Precisely set the retraction point during delicate assembly tasks, using the 40 mm adjustment range to perfect the seating depth.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-40S the Right Cylinder?
Choose this adjustable-stroke model when your machine setup requires variable end-stops or product-size changeovers, avoiding the need to physically swap a fixed-stroke SAI cylinder. If your application demands higher thrust, stepping up to a 40 mm bore provides 628 N of push force at 0.5 MPa. Because the 240 mm stroke is moderately long, ensure adequate external guidance to prevent side-loading on the 12 mm rod.
For load-holding without live air pressure, note that this cylinder's rear adjuster acts only as a travel stop and the air cushions provide deceleration, neither of which locks the load. In such cases, consider an SAIL air-released lock or BSAI clamp-lock cylinder. This unit is dimensionally interchangeable per ISO 15552 and includes a magnet for position sensing.
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 Adjustable Cylinder SAIJ32 SAIJ32AX240-40S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can deliver up to 724 N of push force at 0.9 MPa.
The rear adjuster acts as a mechanical stop that trims the effective stroke. For this 240 mm nominal stroke cylinder, you can shorten the travel by up to 40 mm, creating a usable 200-240 mm window without adding external stops.
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