Airtac Adjustable Cylinder SAIJ32 SAIJ32X125-100
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X125-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32X125-100
The AirTAC SAIJ32X125-100 is a double-acting ISO 15552 profile cylinder featuring a 32 mm bore and a 125 mm stroke. Equipped with a rear adjusting screw, it allows you to trim the effective travel back by up to 100 mm, creating a wide 25-125 mm usable positioning window. This adjustability is ideal for fine-tuning end positions during commissioning or product changeovers without swapping the actuator. Delivering 402 N of push force at 0.5 MPa, it handles lighter loads with precision.
This model features a carbon steel piston rod and PT tapered port threads. It uses variable air cushions at both ends to decelerate the load smoothly. The rear stopper mechanism sets the travel limit but does not lock the load without live air pressure; for true position holding, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X125-100 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X125-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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 SAIJ32X125-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 SAIJ32X125-100 Is Used
Product Changeovers
Dial in the exact 25 to 125 mm end-position rapidly when switching between product sizes on a packaging line.
Machine Setup
Fine-tune the retract stroke during initial commissioning without machining external hard stops.
Variable End Stops
Adjust the travel limit on the fly for testing different sensor trigger distances in assembly fixtures.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X125-100 the Right Cylinder?
Choose this 32 mm bore actuator when an application requires variable end-stops within a 25-125 mm travel range. If your setup needs less fine-tuning, a fixed-stroke SAI cylinder might suffice, but the SAIJ excels in flexible machine setups. For higher force requirements, stepping up to a 40 mm bore provides 628 N of push force at 0.5 MPa. Because the stroke is 125 mm, side-load risks are minimal, but always ensure proper alignment to protect the 12 mm rod.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 125 mm stroke, PT port threads, and the 100 mm adjustment code. This model lacks a magnet; adding an -S suffix enables CMSE reed or DMSE electronic sensors via the dual-side barrel grooves. Remember that the SAIJ mounting set omits FB, CA, CB, and CR brackets.
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 SAIJ32X125-100 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 82 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 125 mm stroke by up to 100 mm. This creates a usable travel window of 25 to 125 mm. It only sets the end position and does not hold the load without continuous air pressure.
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