Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-50
The AirTAC SAIJ32X75-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the 75 mm nominal travel back by up to 50 mm. This creates a highly versatile 25-75 mm usable stroke window, allowing you to fine-tune the end position at commissioning without swapping the cylinder or adding external stops. It delivers 563 N of push force at 0.7 MPa, making it suited for compact automation tasks.
This variant is built with a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU is specified without a magnet, meaning it will not trigger AirTAC CMSE reed or DMSE electronic sensors without a rod magnet upgrade. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 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 SAIJ32BX75-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 SAIJ32BX75-50 Is Used
Product Changeover
Dial in the 25-75 mm travel window during format changes on packaging lines without physically swapping out the cylinder.
Machine Commissioning
Use the rear stopper screw to precisely set the retract end-position during initial setup, avoiding external shims.
Compact Clamping
Leverage the 563 N push force and stainless SUS304 rod for small-part clamping in environments requiring corrosion resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-50 the Right Cylinder?
Choose this 32 mm bore when you need 563 N push force at 0.7 MPa and significant on-machine travel flexibility. If your application requires higher force, stepping up to the 40 mm bore yields 879 N at the same pressure. The 50 mm adjustment range on this 75 mm stroke is ideal for prototyping or lines running multiple product sizes, replacing the need for a fixed-stroke SAI cylinder.
For load-holding without continuous air pressure, note that the rear adjuster and air cushions only decelerate the stroke; they do not function as a lock. You would need an external pilot-operated check valve or a related AirTAC type like SAIL or BSAI for true position holding. Mounting options include the reduced SAIJ set: 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 SAIJ32BX75-50 FAQ
At 0.7 MPa operating pressure, this 32 mm bore cylinder provides 563 N of push force and 345 N of pull force. At 0.5 MPa, it provides 402 N push and 345 N pull.
The rear adjuster acts as a mechanical stop that can shorten the 75 mm nominal stroke by up to 50 mm, giving a usable travel window of 25 to 75 mm. It sets the end position but does not lock the load without live air pressure.
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