Airtac Adjustable Cylinder SAIJ32 SAIJ32X155-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X155-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32X155-40S
The AirTAC SAIJ32X155-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to dial back the 155 mm nominal stroke by up to 40 mm. This yields a usable travel window of 115-155 mm, allowing precise end-position tuning at commissioning without swapping out the unit or adding external stops. As a 32 mm bore class actuator, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa, making it well-suited for lighter-duty handling tasks.
This adjustable variant features a carbon steel piston rod and PT tapered port threads. It includes a magnetic piston (-S) for position sensing, compatible with AirTAC CMSE reed and DMSE solid-state switches that seat directly into the dual-side sensor grooves on the extruded aluminum barrel. The rear adjuster acts solely as a travel stop to set deceleration and end limits; it is not a lock, so the cylinder cannot hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X155-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X155-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 155 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 SAIJ32X155-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×155 | 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 SAIJ32X155-40S Is Used
Machine Changeover
Dial in the 115-155 mm travel window during product size transitions to set new end-stops without physically swapping cylinders or repositioning external stops.
End-Position Tuning
Fine-tune the retract end position during commissioning to perfect part contact or alignment, using the 40 mm rear adjuster to dial in the exact 155 mm stroke.
Light-Load Diversion
Deploy the 402 N push force to actuate lightweight conveyor sorting gates, adjusting the travel on the fly to accommodate varying package dimensions.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X155-40S the Right Cylinder?
Choose this 32 mm bore model when your application requires 402 N of push force at 0.5 MPa and on-the-fly travel adjustments between 115 and 155 mm. If your process demands greater thrust, stepping up to the 40 mm bore raises push force to 628 N at 0.5 MPa, while dropping down to a smaller unit would sacrifice the necessary output. The adjustable-stroke design is ideal for machine setups requiring variable end-stops or product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 155 mm nominal stroke, 40 mm adjustment range, PT port threads, and the -S magnet requirement. The SAIJ series supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). For load-holding applications without continuous air pressure, consider the SAIL or BSAI series, as this cylinder relies entirely on live air to maintain position.
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 SAIJ32X155-40S FAQ
At a 0.5 MPa operating pressure, this 32 mm bore cylinder generates 402 N of push force and 345 N of pull force. If operated at 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw lets you shorten the 155 mm nominal stroke by up to 40 mm, creating a usable travel window of 115-155 mm. The adjuster acts as a mechanical stop for end-position tuning and does not lock or hold the load without live air pressure.
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