Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-100
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-100
The AirTAC SAIJ32X120-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 120 mm travel by up to 100 mm. This creates a highly flexible 20-120 mm usable stroke window, perfect for product changeovers without swapping hardware. Built with a SUS304 stainless steel rod, it delivers 402 N of push force at 0.5 MPa and pulls 345 N.
Unlike fixed-stroke SAI units, this model lets you set the retract end-position mechanically at commissioning, removing the need to bolt on external stops. The PT tapered port threads match the G1/8 connection, and the extruded aluminum barrel features sensor grooves on both sides. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-100 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAIJ32BX120-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SAIJ32BX120-100 Is Used
Product Changeover
Quickly modify the effective stroke from 20 to 120 mm to handle varying part sizes on the same production line without changing cylinders.
Commissioning Calibration
Fine-tune the retract end-position during initial machine setup to absorb mechanical tolerances without adding external stopper blocks.
Variable End-Stop Machining
Use the 100 mm adjustment range to dial in the exact clamping depth for delicate machining operations across different workpieces.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-100 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa but demands variable end-stops for different product sizes. If your setup needs less force, stepping down is not an option below 32 mm, but stepping up to a 40 mm bore increases your 0.5 MPa push force to 628 N. Because the stroke is 120 mm, side-load is minimal, but always guide long unsupported loads.
An adjustable stroke is selected over a fixed SAI cylinder when you need on-the-fly end-position tuning during machine setup. For load-holding without live air, this adjuster will not act as a lock; consider an SAIL or BSAI cylinder instead. To match this ISO 15552 replacement exactly, specify the 32 mm bore, 120 mm stroke, 100 mm adjustment, PT port, and no magnet.
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 SAIJ32BX120-100 FAQ
At 0.5 MPa it provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster allows you to shorten the 120 mm nominal stroke by up to 100 mm, providing a usable travel window of 20 to 120 mm. It acts as a mechanical stop and does not hold the load without air pressure.
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