Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-40
The AirTAC SAIJ32X250-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 210 to 250 mm, allowing you to dial back the 250 mm nominal stroke by up to 40 mm during machine commissioning. In the compact 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant uses a SUS304 stainless steel rod for corrosion resistance and has a PT tapered G1/8 port. The extruded aluminum barrel includes sensor grooves on both sides. Because it lacks a piston magnet, it requires external or separately mounted sensors for position detection rather than CMSE or DMSE switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAIJ32BX250-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SAIJ32BX250-40 Is Used
Machine Commissioning
Fine-tune the end-of-stroke position by up to 40 mm during setup without physically swapping cylinders or machining external stopper blocks.
Product Changeover
Quickly adapt the 210 to 250 mm travel window on packaging lines when running slightly shorter product lengths.
Pick and Place
Ideal for lighter-duty handling tasks where the 402 N thrust is sufficient and precise end-positioning is critical.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-40 the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when you need precise end-position tuning without adding external stops. If your application requires higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. The rear adjuster acts only as a travel stop for deceleration; it does not hold the load without live air. For load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 250 mm stroke, 40 mm adjustment range, PT G1/8 port, and SUS304 rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the stroke is 250 mm, ensure adequate guidance 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 SAIJ32BX250-40 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can deliver up to 724 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 250 mm down to 210 mm. This allows precise end-position tuning at commissioning, but it does not lock the load without continuous air pressure.
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