Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100S
The AirTAC SAIJ32X400-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 300-400 mm adjustable travel window, allowing you to dial back the nominal 400 mm stroke by up to 100 mm. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for straightforward detection.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic solid-state sensors. The rear adjuster acts purely as a mechanical stop to fine-tune end positions and cannot hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAIJ32BX400-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SAIJ32BX400-100S Is Used
Product Changeovers
Dial in the 300-400 mm travel window during line changeovers to accommodate varying product lengths without replacing the cylinder.
End-Position Tuning
Fine-tune the exact retract position at machine commissioning using the rear stopper, ensuring precise placement without external stops.
Test Fixture Setup
Adjust the effective stroke on the fly for lab and test fixtures, finding the optimal travel distance for different test parameters.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100S the Right Cylinder?
Choose this 32 mm bore when 402 N of thrust at 0.5 MPa is sufficient for your application, stepping down from a 40 mm bore that yields 628 N. An adjustable stroke is ideal for machine setups requiring variable end stops during commissioning or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. For secure load-holding without continuous air pressure, consider the SAIL or BSAI series instead.
When matching your ISO 15552 replacement, verify the 32 mm bore, 400 mm stroke, 100 mm adjustment range, PT port thread, and the -S magnet requirement. Because the stroke extends to 400 mm, the 12 mm rod diameter warrants careful alignment; long unsupported strokes demand an external guide to prevent excessive side-loading and premature seal wear.
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 SAIJ32BX400-100S FAQ
It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, with a maximum operating speed of 30-800 mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective travel from 400 mm down to 300 mm. It sets the end position but does not lock or hold the load without live air.
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