Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40 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 SAIJ32X115-40
The AirTAC SAIJ32X115-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 115 mm travel back by up to 40 mm. This yields a usable end-position window of 75 to 115 mm, enabling precise tuning at commissioning without swapping out the barrel or adding external stops. It features a 12 mm carbon steel rod and a PT tapered G1/8 port.
Delivering 402 N of push force and 345 N of pull force at 0.5 MPa, this 32 mm bore unit is built for standard 30-800 mm/s speeds. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement, though this non-magnet variant does not support internal sensing.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40 |
|---|---|
| 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 SAIJ32X115-40
| 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 SAIJ32X115-40 Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 75 and 115 mm during product size changeovers on packaging lines without machining new hard stops.
Machine Setup Commissioning
Fine-tune the final end-of-stroke position during initial machine build to compensate for mechanical tolerance stack-up.
Light-Duty Clamping
Apply up to 402 N of clamping force while adjusting the travel window on the fly to accommodate varying part thicknesses.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X115-40 the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your application requires fine-tuning of the retract end-position during machine setup or product changeover, rather than the fixed travel of a standard SAI model. If your process needs less push force, stepping down is not an option as 32 mm is the smallest size, but if you need significantly more force, the 40 mm bore offers 628 N at 0.5 MPa.
Because the rear adjuster acts purely as a mechanical stop and the air cushions only manage deceleration, this cylinder cannot hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series. When replacing an ISO 15552 cylinder, verify your exact 115 mm stroke, 40 mm adjustment range, PT port thread, and mounting interface.
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 SAIJ32X115-40 FAQ
At an operating pressure of 0.5 MPa, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. At the maximum pressure of 1.0 MPa, it can deliver up to 82 kgf.
The rear adjuster screw acts as a mechanical stop that can shorten the nominal 115 mm stroke by up to 40 mm, giving an effective travel range of 75 to 115 mm. It only sets the end position and does not lock the load without live air pressure.
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