Airtac Adjustable Cylinder SAIJ32 SAIJ32AX65-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX65-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 65mm 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
- Stroke65 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX65-50
The AirTAC SAIJ32X65-50 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 65mm nominal stroke that can be fine-tuned down by up to 50mm, creating a precise 15-65mm usable travel window. This adjustability allows you to dial in the exact end position at commissioning without adding external stops.
This configuration features a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance compared to standard carbon steel. It uses a PT tapered port thread, operates at speeds of 30-800mm/s, and includes variable air cushions at both ends. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX65-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX65-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 65 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 SAIJ32AX65-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×65 | 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 SAIJ32AX65-50 Is Used
Machine Changeovers
Dial in the 15-65mm retraction point during product size changes without physically swapping the cylinder or adding external mechanical stops.
Prototype Positioning
Ideal for prototype tooling where the exact end-of-stroke position is unknown, allowing 50mm of rear adjustment to find the optimal travel distance.
Actuator Setup
Fine-tune the retracted position of small pneumatic actuators during initial machine commissioning to prevent mechanical interference.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX65-50 the Right Cylinder?
Choose this 32mm bore cylinder when your application requires 402N push force at 0.5 MPa but needs on-the-fly end-position tuning. If your setup demands less force, stepping down is not an option in this size range, but stepping up to a 40mm bore yields 628N. The 50mm adjustment range is exceptionally wide for a 65mm stroke, making it perfect for prototyping or product changeovers where the exact retraction point varies. For load-holding without live air, consider the SAIL or BSAI series instead of relying on this stopper.
To replace an ISO 15552 cylinder, match the 32mm bore, 65mm stroke, PT port thread, and your desired mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because this specific unit lacks the -S magnet option, it cannot host CMSE or DMSE sensors.
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 SAIJ32AX65-50 FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At 0.7 MPa, the push force increases to 563N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 50mm. This creates a usable travel window of 15mm to 65mm, depending on how far the adjuster is screwed in. It functions as a stop, not a lock, and requires live air to hold position.
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