Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-40S
The AirTAC SAIJ32X155-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel back by up to 40 mm. This creates a usable 115-155 mm stroke window, allowing you to fine-tune the retract end position at commissioning without swapping out the barrel or adding external stops. It delivers 402 N of push force at 0.5 MPa and uses a SUS304 stainless steel rod for superior corrosion resistance.
Equipped with a magnet for position sensing, this model works seamlessly with AirTAC CMSE reed and DMSE solid-state switches housed in the dual-side sensor grooves. The extruded aluminum barrel utilizes PT tapered port threads (G1/8) and supports a compact mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a mechanical stop for end-position tuning, not a lock, so live air pressure is required to maintain the load.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 155 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 SAIJ32BX155-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×155 | 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 SAIJ32BX155-40S Is Used
Machine Changeover
Dial in the 115-155 mm retract position during product size changes on a packaging line without replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the exact end-of-stroke location during initial commissioning to absorb mechanical tolerances and ensure precise repetitive motion.
Corrosive Environments
Leverage the SUS304 stainless steel rod and adjustable travel window for test fixtures or food-grade washdown areas requiring custom stroke limits and rust resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-40S the Right Cylinder?
Choose this 32 mm bore when your application requires around 402 N of push force at 0.5 MPa, or step up to the 40 mm bore if you need 628 N. An adjustable stroke is ideal for machine changeovers where the exact retract distance varies slightly between product sizes, giving you a 115-155 mm window to tune on the fly instead of machining custom fixed-stroke SAI cylinders. The SUS304 rod handles harsh environments better than carbon steel, and the included magnet allows for precise end-of-stroke detection.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 155 mm nominal stroke, 40 mm adjustment range, PT port type, and the -S magnet option. Because the rear screw only sets the travel end and the air cushions decelerate the piston, this cylinder will not hold a load without live air pressure. For true fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ32BX155-40S FAQ
The rear adjuster screw lets you shorten the 155 mm nominal stroke by up to 40 mm, providing a usable travel window of 115 to 155 mm. It acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
At 0.5 MPa it provides 402 N of push force and 345 N of pull force, reaching a maximum of 82 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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