Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-75 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 SAIJ32BX155-75
The AirTAC SAIJ32X155-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from a 155 mm nominal stroke to a minimum of 80 mm. This wide 75 mm adjustment window is ideal for production lines running mixed product sizes, letting operators dial in the exact retract stop without swapping hardware. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, supported by a 12 mm SUS304 stainless steel rod that provides excellent corrosion resistance for harsh or washdown environments.
Unlike a fixed-stroke SAI cylinder, this SAIJ model uses an external rear stopper screw to set the end position directly at commissioning. The adjuster acts purely as a mechanical travel stop and does not lock the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE solid-state sensors for position feedback, while the PT tapered port threads ensure a tight, reliable pneumatic connection.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-75 |
|---|---|
| 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 SAIJ32BX155-75
| 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 SAIJ32BX155-75 Is Used
Product Changeover Dials
Quickly adjust the retract stop from 155 mm down to 80 mm when switching to a shorter package size on a packaging line, saving setup time without changing cylinders.
Prototype End-Stop Tuning
Fine-tune the exact end-of-stroke position during machine commissioning to perfectly seat parts, preventing over-travel without adding external mechanical stops.
Washdown Sorting Diverters
Employ the SUS304 stainless steel rod in food-grade diverters where the 75 mm travel adjustment accommodates different carton widths while resisting corrosion.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-75 the Right Cylinder?
Choose this 32 mm bore when your application requires moderate thrust (402 N push at 0.5 MPa) but demands extreme flexibility in end-position tuning. If your setup needs higher force, stepping up to the 40 mm bore yields 628 N of push force at the same pressure. The 75 mm adjustment range is particularly useful for prototyping cells or machines that undergo frequent product changeovers, eliminating the need to bolt on external stops or purchase multiple fixed-stroke cylinders. Because the stroke is 155 mm, which is over 300 mm when combined with the adjuster travel, an external guide is recommended to prevent side-loading damage to the 12 mm rod.
For a true ISO 15552 replacement, match the 32 mm bore, 155 mm stroke, and 75 mm adjustment code, along with the PT port thread, SUS304 (B) rod material, and no magnet. Remember that the rear adjuster and the variable air cushions at both ends only decelerate the piston; they do not hold the load. If your process requires true position holding without continuous air pressure, consider the SAIL series with an air-released lock or the BSAI clamp-lock cylinder. This SAIJ model supports a reduced mounting set including 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 SAIJ32BX155-75 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 operates at speeds between 30 and 800 mm/s and features a 12 mm SUS304 stainless steel rod with an M10x1.25 thread.
The rear adjuster screw lets you mechanically shorten the usable stroke from the 155 mm nominal length down to a minimum of 80 mm. This stopper only sets the travel end position; it does not lock the load, so continuous air pressure is required to hold position.
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