Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 115mm 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
- Stroke115 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40S
The AirTAC SAIJ32X115-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster. It provides a 402N push force at 0.5MPa and features a built-in magnetic piston for position sensing. The carbon steel piston rod uses an M10x1.25 thread, and the body features sensor grooves on both sides to simplify switch placement.
With a 115mm nominal stroke and a 40mm adjustment range, this SKU yields a usable travel window of 75 to 115mm. This wide tuning band is ideal for dialing in exact end positions during commissioning or product changeover without physically swapping the actuator. The extruded aluminum barrel design incorporates variable air cushions at both ends to regulate end-of-stroke deceleration, while the PT tapered G1/8 ports ensure a reliable pneumatic seal.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 115 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 SAIJ32X115-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×115 | 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 SAIJ32X115-40S Is Used
Commissioning End-Position Tuning
Dial in the exact retract position within the 75-115mm window during machine setup without adding external stops or changing the cylinder.
Product Size Changeover
Quickly adapt the effective stroke on packaging lines when switching between different product lengths, minimizing downtime.
Sensor-Driven Positioning
Leverage the integrated -S magnet with AirTAC DMSE solid-state or CMSE reed switches to confirm the adjusted end-stop position.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40S the Right Cylinder?
Selecting this 32mm bore makes sense when your application requires 402N of push force at 0.5MPa, offering a lighter touch than the neighboring 40mm bore which outputs 628N. The adjustable stroke is specifically chosen over a fixed-stroke SAI when a machine setup requires a variable end-stop to accommodate multiple product sizes on the same line. For strokes of 115mm, the M10x1.25 rod handles basic loads well, but long unsupported travel still requires an external guide to prevent side-loading damage.
When specifying a replacement, match the 32mm bore, 115mm nominal stroke, 40mm adjuster, PT port thread, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on other series. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For true pneumatic locking without pressure, consider the SAIL or BSAI series instead.
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 SAIJ32X115-40S FAQ
At 0.5MPa operating pressure, this 32mm bore cylinder provides a push force of 402N and a pull force of 345N. It can reach a maximum push force of 724N at 0.9MPa.
The rear adjuster screw acts as a mechanical stop that trims the effective travel back by up to 40mm. For this 115mm stroke model, it creates a usable travel window between 75mm and 115mm, allowing fine-tuning without replacing the actuator.
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