Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-20S 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 SAIJ32AX55-20S
The AirTAC SAIJ32X55-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 55 mm travel to a precise 35-55 mm window. Delivering 402 N of push force at 0.5 MPa, this compact unit is designed for applications requiring exact end-position tuning without swapping components.
This variant features a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel provides sensor grooves on both sides, and the PT tapered port threads match the standard G1/8 fitting size.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-20S |
|---|---|
| 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 SAIJ32AX55-20S
| 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 SAIJ32AX55-20S Is Used
Precision Positioning
Dial in the exact 35 to 55 mm retract distance during machine commissioning to accommodate varying sensor targets without adding external stopper blocks.
Product Changeover
Quickly adjust the end-of-stroke position on a packaging line when switching between different container sizes, minimizing downtime.
Light Assembly Tasks
Utilize the 402 N push force for delicate pressing or clamping operations where the final position must be fine-tuned to the workpiece.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-20S the Right Cylinder?
Choose this 32 mm bore when you need 402 N push force at 0.5 MPa with on-the-fly stroke trimming; step down if you require less force, or up to a 40 mm bore for 628 N if your load increases. The rear screw acts as a mechanical stop to fine-tune the retract end during commissioning or product changeovers, rather than locking the load. For dead-end holding without live air pressure, select a SAIL or BSAI cylinder instead.
To replace an ISO 15552 cylinder, match the 32 mm bore, 55 mm stroke, 20 mm adjustment range, PT port threads, and the -S magnet option. The available mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32AX55-20S FAQ
The rear adjuster screw allows you to mechanically shorten the effective stroke by up to 20 mm, providing a usable travel window of 35 to 55 mm. It functions as a travel stop and does not lock the load without live air pressure.
At 0.5 MPa operating pressure, this double-acting 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.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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