Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 55mm 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
- Stroke55 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40S
The AirTAC SAIJ32X55-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 15 to 55 mm, allowing you to dial in the exact end position without adding external stops. In the 32 mm bore class, it delivers a push force of 402 N at 0.5 MPa and 563 N at 0.7 MPa.
This variant includes a SUS304 stainless steel rod for corrosion resistance and a -S magnet for position sensing. It is wired for AirTAC CMSE reed and DMSE electronic solid-state switches. The mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 55 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 SAIJ32BX55-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×55 | 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 SAIJ32BX55-40S Is Used
Machine Setup Tuning
Dial in the exact 15 to 55 mm retract position during initial commissioning without swapping out the physical cylinder.
Variable End Stops
Adjust the travel end-point on the fly to accommodate minor variations in product size on a packaging line.
Precise Positioning
Leverage the 402 N push force at 0.5 MPa alongside the rear stopper to achieve repeatable end-of-stroke accuracy.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40S the Right Cylinder?
Select this 32 mm bore unit when your application requires fine-tuning the retract distance during commissioning or product changeover. If you need higher force, stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa. The rear adjuster acts purely as a mechanical stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series instead.
To match this ISO 15552 interchangeable cylinder, specify the 32 mm bore, 55 mm nominal stroke, 40 mm adjustment range, PT tapered port thread, and the -S magnet option. With a 12 mm rod and M10x1.25 thread, side loads are minimal, but long unsupported strokes still require an external guide.
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 SAIJ32BX55-40S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster allows you to shorten the 55 mm nominal stroke by up to 40 mm, creating a usable travel window of 15 to 55 mm. The adjuster functions as a travel stop and does not lock the load without continuous air pressure.
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