Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-50S 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 SAIJ32AX400-50S
The AirTAC SAIJ32X400-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 400 mm stroke that can be dialed back by up to 50 mm, yielding a precise 350-400 mm usable travel window for product changeovers without swapping hardware. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback.
In this 32 mm bore configuration, the cylinder generates 402 N of push force and 345 N of pull force at 0.5 MPa, utilizing a PT-tapered G1/8 port and a 12 mm rod. The rod is constructed from SUS420J2 stainless steel (code A) for improved corrosion resistance. Air cushions at both ends decelerate the moving load, but the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-50S |
|---|---|
| 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 SAIJ32AX400-50S
| 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 SAIJ32AX400-50S Is Used
Machine Changeover
Dial in the 350-400 mm stroke window during product size changes to set new end positions without replacing the cylinder or adding external stops.
Variable Diverting
Adjust the retract stop on the fly to handle different package lengths on a sorting line, using the 32 mm bore's 345 N pull force.
Sensor-Driven Positioning
Leverage the integrated magnet with DMSE electronic sensors to confirm the adjusted end-stop position in automated assembly tooling.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-50S the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa; step down if your load is lighter, or step up to a 40 mm bore (628 N push) if you need greater thrust margin. An adjustable stroke is ideal for machine setups requiring variable end-stops at commissioning, avoiding the need to bolt on external stops or buy a fixed-stroke SAI cylinder. To replace this cylinder, match the 32 mm bore, 400 mm stroke, 50 mm adjustment, PT port, and -S magnet.
Because this model features a 400 mm stroke, the 12 mm rod is subject to increased side-loading risks when fully extended. An external guide mechanism is recommended to prevent rod binding and premature seal wear. For applications requiring the load to be held mechanically without continuous air pressure, a plain SAIJ is insufficient; consider an AirTAC SAIL pneumatic lock or an external rod lock. Mounting options are limited to 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 SAIJ32AX400-50S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 400 mm nominal stroke down to 350 mm. It is a travel stop, not a lock, and the cylinder requires live air to hold position.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.