Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-50S 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 SAIJ32BX70-50S
The AirTAC SAIJ32X70-50-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, allowing you to dial back the 70 mm nominal stroke by up to 50 mm for a usable travel window of 20 to 70 mm. It delivers 402 N of push force at 0.5 MPa and operates at speeds of 30-800 mm/s, making it ideal for compact setups requiring precise end-position tuning.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. It uses PT tapered ports (G1/8) and incorporates variable air cushions at both ends to decelerate the load smoothly.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-50S |
|---|---|
| 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 SAIJ32BX70-50S
| 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 SAIJ32BX70-50S Is Used
End-Position Tuning
Fine-tune the retract stroke from 20 to 70 mm during machine commissioning to dial in exact stopping distances without adding external stops.
Product Changeover
Quickly adapt the cylinder's travel window on packaging lines when switching between different product sizes, minimizing downtime.
Sensor-Ready Automation
Leverage the integrated magnet with CMSE or DMSE switches to confirm end-stroke positions across the adjusted travel range.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX70-50S the Right Cylinder?
Choose this 32 mm bore when you need 402 N of push force at 0.5 MPa and highly flexible end-stop positioning without swapping cylinders during product changeovers. If your application requires more thrust, stepping up to the 40 mm bore yields 628 N. The rear adjuster acts as a mechanical stop to set the travel end, not a lock, so it will not hold the load without live air; for fail-safe holding, consider an SAIL or BSAI cylinder.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints using the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set. Because the stroke is under 300 mm, side-load stress on the 12 mm rod is minimal, though external guides are still recommended for heavy lateral loads.
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 SAIJ32BX70-50S FAQ
The SAIJ32X70-50-S uses an external adjusting screw at the rear that mechanically stops the piston, allowing you to shorten the 70 mm nominal stroke by up to 50 mm, resulting in a 20 to 70 mm usable travel window.
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can deliver up to 724 N of push force at 0.9 MPa.
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