Airtac Adjustable Cylinder SAIJ32 SAIJ32BX350-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX350-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX350-40
The AirTAC SAIJ32X350-40 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 350 mm stroke that can be fine-tuned backward by up to 40 mm, creating a precise 310-350 mm usable travel window. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. The piston rod is constructed from SUS304 stainless steel, and the pneumatic supply connects via a PT tapered G1/8 port.
Because the adjustment mechanism acts purely as a mechanical stop at the retract end, it cannot hold a load without continuous live air pressure. For true fail-safe load holding, an external rod lock or an AirTAC SAIL pneumatic locking cylinder is required. This model supports a operating speed range of 30-800 mm/s and features variable air cushions at both ends to manage deceleration.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX350-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX350-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 350 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 SAIJ32BX350-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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 SAIJ32BX350-40 Is Used
Variable End-Stop Tuning
Dial in the exact retract distance from 310 to 350 mm during machine setup, allowing precise positioning without adding external physical stops.
Product Size Changeover
Quickly adapt the cylinder's travel window on a packaging line to accommodate varying product lengths without changing the actuator.
Gentle Deceleration Setup
Combine the 40 mm rear stroke adjustment with the standard variable air cushions to perfectly time the end-of-stroke deceleration for delicate components.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX350-40 the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your application requires exact end-position tuning during commissioning or product changeover, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your machine requires higher thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa, but for compact, lower-force assembly tasks, this 32 mm unit is highly effective.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 350 mm stroke, 40 mm adjustment range, PT G1/8 port, and standard mounting interface. Note that SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 350 mm stroke is relatively long for this smaller bore, ensure you use an external guide to prevent excessive side-loading on the 12 mm rod.
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 SAIJ32BX350-40 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 40 mm. This provides a usable travel window of 310 to 350 mm, which can be fine-tuned during commissioning without replacing the cylinder.
At 0.5 MPa, it provides 402 N of push force and 345 N of pull force. The standard speed range for this bore is 30-800 mm/s, regulated by the G1/8 port and standard air cushions.
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