Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 70mm 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
- Stroke70 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-20
The AirTAC SAIJ32X70-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 70mm travel but includes an external screw mechanism that allows you to shorten the effective stroke by up to 20mm, creating a precise 50-70mm usable window. This feature is perfect for dialing in end positions at commissioning without swapping out the cylinder.
In the 32mm bore class, it delivers 402N of push thrust at 0.5 MPa and features a 12mm carbon steel rod with an M10x1.25 thread. This variant uses a SUS420J2 stainless steel rod (code A) for improved corrosion resistance. It includes PT tapered port threads (G1/8) and variable air cushions at both ends to decelerate the load smoothly.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 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 SAIJ32AX70-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 SAIJ32AX70-20 Is Used
End-Position Tuning
Dial in the exact 50-70mm travel window during machine commissioning to perfect positioning without machining external stops.
Product Changeover
Quickly adapt the retract stroke end-stop on a packaging line when switching to a slightly smaller product format.
Light Assembly
Provides 402N of thrust at 0.5 MPa for pressing or locating small components with fine-tuned travel limits.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-20 the Right Cylinder?
Choose this 32mm bore model when your application requires 402N of push force at 0.5 MPa and on-the-fly end-position tuning. If your setup demands less force, stepping down is an option, but for heavier loads, consider a 40mm bore which provides 628N. The adjustable rear stopper acts solely as a travel end deceleration device, not a lock. If you need to hold a load securely without live air pressure, you must use an external rod lock or pilot-operated check valve, or look at the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 32mm bore, 70mm nominal stroke, 20mm adjustment range, PT port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). This specific SKU does not include a magnet for proximity sensing; adding the -S suffix enables compatibility with AirTAC CMSE reed and DMSE electronic solid-state 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 SAIJ32AX70-20 FAQ
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to trim the effective stroke back by up to 20mm. This creates a usable travel window of 50-70mm, letting you fine-tune the retract end position without replacing the cylinder.
At 0.5 MPa operating pressure, the 32mm bore provides 402N of push thrust and 345N of pull thrust. At the maximum 1.0 MPa pressure, it can deliver up to 801N of push force.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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