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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ32 mm
- Stroke45 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
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.
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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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?
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
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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