Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-30S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-30S 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 SAIJ32BX70-30S
The AirTAC SAIJ32X70-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 40 to 70 mm. Delivering 402 N of push force at 0.5 MPa, it integrates a SUS304 stainless steel rod for superior corrosion resistance and features a built-in magnet for CMSE reed and DMSE electronic sensors.
This adjustable-stroke design allows operators to fine-tune end positions during commissioning without swapping the cylinder or adding external stops. It uses a PT tapered port and retains the standard SAI sensor grooves on both sides of the extruded aluminum barrel.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-30S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-30S |
|---|---|
| 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 SAIJ32BX70-30S
| 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 SAIJ32BX70-30S Is Used
Product Changeovers
Dial in the 40-70 mm travel window during format size changes on a packaging line without physically swapping the actuator.
Machine Setup
Fine-tune the retract end-position at commissioning to perfectly seat parts, using the rear stopper instead of external shims.
Variable End Stops
Adjust the effective stroke on the fly for delicate picking tasks where the exact 70 mm nominal distance varies slightly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-30S the Right Cylinder?
Choose this 32 mm bore when an application requires precise end-position tuning, stepping up from smaller actuators or down from a 40 mm bore that yields 628 N at 0.5 MPa if less force is needed. The rear adjuster acts strictly as a travel stop to set deceleration, not a lock, so load-holding without live air requires a SAIL or BSAI variant. To match this ISO 15552 cylinder for a replacement, verify the 70 mm stroke, 30 mm adjustment range, PT G1/8 port, and -S magnet.
With a 70 mm stroke, side-load risks are minimal, but the 12 mm rod and M10x1.25 thread still require external guiding if subjected to lateral forces. The adjustable window is highly beneficial for product-size changeovers on packaging lines.
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 SAIJ32BX70-30S FAQ
At 0.5 MPa it provides 402 N of push force and 345 N of pull force. If higher pressure is used, push force increases to 563 N at 0.7 MPa and 724 N at 0.9 MPa.
The rear adjuster screw lets you trim the effective stroke back by up to 30 mm from the 70 mm nominal length, creating a 40-70 mm travel window. It functions as a mechanical stop and does not hold the load without live air.
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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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