Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-40 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 SAIJ32AX70-40
The AirTAC SAIJ32X70-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 70 mm travel back by up to 40 mm, creating a precise 30-70 mm usable window for commissioning. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning tasks. The standard extruded aluminum barrel includes sensor grooves on both sides, though position detection requires adding a magnet.
This variant uses a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance compared to standard carbon steel. It features PT tapered port threads and provides variable air cushioning at both ends to decelerate the load. The rear adjuster acts strictly as a travel stop for end-position tuning, not a load-holding lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-40 |
|---|---|
| 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 SAIJ32AX70-40
| 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 SAIJ32AX70-40 Is Used
End-Position Tuning
Dial in the exact 30-70 mm travel distance during machine commissioning to accommodate varying part sizes without adding external mechanical stops.
Product Changeover
Rapidly adjust the retract end-point on packaging lines when switching between different product formats, minimizing downtime and retooling.
Light-Duty Positioning
Utilize the 402 N push force for precise component placement and light clamping tasks where exact stroke limits are critical.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX70-40 the Right Cylinder?
Select this 32 mm bore cylinder when an application demands 402 N of push force at 0.5 MPa and requires variable end-stop positioning rather than a fixed 70 mm stroke. The adjustable rear stopper is perfect for machine setups needing fine-tuning during product changeovers without swapping hardware. If your process requires holding a load without continuous air pressure, this adjuster will not suffice; you should explore the SAIL (air-released lock) or BSAI (clamp-lock) series instead. To match this ISO 15552 replacement exactly, specify the 32 mm bore, 70 mm stroke, 40 mm adjustment, PT port thread, and SUS420J2 rod material.
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 SAIJ32AX70-40 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm from the nominal 70 mm, providing a usable travel window of 30 to 70 mm. It functions as a mechanical stop for end-position tuning and does not lock or hold the load without live air pressure.
At 0.5 MPa operating pressure, it generates 402 N of push force and 345 N of pull force. The maximum operating pressure is 1.0 MPa, yielding up to 82 kgf of push force.
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