Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-40S 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 SAIJ32AX400-40S
The AirTAC SAIJ32X400-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 400mm nominal stroke that can be fine-tuned down by up to 40mm, creating a precise 360-400mm usable travel window. This built-in adjustability allows you to dial in the retract end-position during commissioning without adding external stops.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and a magnet (-S) for position sensing. It operates at speeds of 30-800mm/s and uses a PT G1/8 port. The extruded aluminum barrel includes sensor grooves on both sides, and the rear stopper acts purely as a travel end-deceleration point, not a load-holding lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-40S |
|---|---|
| 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 SAIJ32AX400-40S
| 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 SAIJ32AX400-40S Is Used
Product Changeover
Quickly adjust the 360-400mm travel window to accommodate different product lengths on a packaging line without swapping hardware.
End-Position Tuning
Fine-tune the retract stroke during machine commissioning to achieve exact alignment without machining external stopper blocks.
Variable End Stops
Provide adjustable physical deceleration points for lightweight sorting actuators where the exact stopping distance needs field calibration.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-40S the Right Cylinder?
Choose this 32mm bore when you need 402N push force at 0.5 MPa with on-the-fly end-position tuning. If your application requires less force, stepping down is not an option below 32mm in this series, but stepping up to a 40mm bore yields 628N. The adjustable stroke is ideal for machine setups requiring product changeovers, whereas a fixed SAI cylinder is better for rigid, unchanging end-stops. For load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder instead.
At 400mm of stroke, the 12mm rod and M10x1.25 thread face increased leverage stresses. An external guide is recommended to prevent side-loading damage. To match this ISO 15552 cylinder exactly, specify the 32mm bore, 400mm stroke, 40mm adjustment, PT G1/8 port, SUS420J2 rod, and -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32AX400-40S FAQ
At 0.5 MPa, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At a maximum operating pressure of 1.0 MPa, it can deliver up to 82 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 400mm down to 360mm. It only sets the travel end and does not hold the load without live air pressure.
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