Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 135mm 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
- Stroke135 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40S
The AirTAC SAIJ32X135-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 95 to 135 mm, letting you dial back the nominal 135 mm stroke by up to 40 mm during commissioning without adding external stops. Operating at 0.5 MPa, it delivers 402 N of push force and 345 N of pull force. This variant features a SUS304 stainless steel piston rod for superior corrosion resistance and includes a magnet for position sensing.
The extruded aluminum barrel integrates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE solid-state switches. It uses a PT tapered G1/8 port and offers adjustable air cushions at both ends. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting FB, CA, CB, and CR brackets. The rear adjuster functions strictly as a travel stop to set end positions, not as a lock to hold loads without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 135 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 SAIJ32BX135-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×135 | 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 SAIJ32BX135-40S Is Used
End-Position Tuning
Dial in the exact retract distance within the 95-135 mm window during machine commissioning to accommodate varying material thicknesses without swapping hardware.
Product Changeover
Quickly adjust the stroke stop on packaging lines when switching between different package sizes, ensuring precise positioning without external spacers.
Assembly Clamping
Set a precise clamping reach using the rear stopper, relying on the 402 N of thrust at 0.5 MPa to hold parts securely during machining operations.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40S the Right Cylinder?
Choose this 32 mm bore when your application requires up to 402 N of thrust at 0.5 MPa. If your setup needs less force, stepping down is not an option below 32 mm in this series, but if you require significantly higher force, the 40 mm bore provides 628 N at 0.5 MPa. The adjustable stroke is ideal for machine changeovers where exact end-position tuning is required, replacing the fixed travel of a standard SAI cylinder. To match this replacement exactly, specify a 32 mm bore, 135 mm stroke, 40 mm adjustment, PT G1/8 port, the reduced SAIJ mounting set, and a -S magnet. Since the stroke is under 300 mm, side-load stress on the 12 mm rod is minimal, though external guides are still recommended for heavy lateral loads. For applications requiring true load holding without live air, consider the SAIL or BSAI series, as the SAIJ adjuster does not act as a brake.
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 SAIJ32BX135-40S FAQ
At an operating pressure of 0.5 MPa, the SAIJ32X135-40-S generates 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 135 mm down to as little as 95 mm. It sets the travel end-point for tuning but does not lock or hold the load without continuous air pressure.
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