Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 45mm 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
- Stroke45 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-40S
The AirTAC SAIJ32X45-40-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, allowing you to dial back the 45 mm nominal stroke by up to 40 mm. This creates a highly flexible 5 to 45 mm usable travel window, ideal for fine-tuning end positions during machine commissioning or product changeovers without swapping out the cylinder. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This SKU is built with an SUS420J2 stainless steel rod (option A) for improved corrosion resistance and includes a built-in magnet (-S) for position sensing with AirTAC CMSE reed or DMSE electronic switches. The extruded aluminum barrel features sensor grooves on both sides, and the unit uses a PT G1/8 tapered port. It supports the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR mounts.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 45 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 SAIJ32AX45-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×45 | 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 SAIJ32AX45-40S Is Used
Changeover Positioning
Dial in the exact end-of-stroke position within the 5-45 mm window during product size changeovers, eliminating the need to physically swap cylinders or rework mounting plates.
Assembly Calibration
Fine-tune the clamping or pressing distance during machine commissioning, using the rear stopper to set the precise 12 mm rod extension for delicate parts.
Sensor-Ready Stops
Leverage the built-in magnet and dual sensor grooves to mount CMSE or DMSE switches directly alongside the adjustable travel window for precise position feedback.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-40S the Right Cylinder?
Choose this 32 mm bore if your application requires 402 N of push force at 0.5 MPa; stepping down is not an option from this size, but stepping up to a 40 mm bore provides 628 N if your load demands more thrust. An adjustable-stroke cylinder is selected over a fixed-stroke SAI when you need variable end stops to accommodate multiple product sizes on the same line. The rear adjuster acts purely as a mechanical travel stop to set deceleration and position, not as a load-holding device. For applications that must hold a load without continuous live air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 45 mm nominal stroke, 40 mm adjustment range, PT G1/8 port, and the required mounting style. Because this model uses a 12 mm diameter rod with an M10x1.25 thread, it handles moderate side loads, but always ensure the load is guided externally for optimal bearing life.
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 SAIJ32AX45-40S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. The 40 mm adjustment mechanism allows you to trim the 45 mm nominal stroke, creating a usable travel window ranging from 5 mm to 45 mm.
No, the rear adjuster functions only as a travel stop to set the end position and works with the air cushion for deceleration. It does not lock or hold the load without live air pressure. For fail-safe load holding, use an SAIL or BSAI cylinder.
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