Airtac Adjustable Cylinder SAIJ32 SAIJ32BX20-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX20-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 20mm 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
- Stroke20 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX20-20S
The AirTAC SAIJ32X20-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 402N of push force at 0.5 MPa. Because the 20mm nominal stroke matches the 20mm adjustment code, technicians can dial the effective travel down to a zero-mm hard stop. This extreme adjustability is ideal for applications demanding precise end-position tuning without swapping hardware.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. It uses PT tapered ports and, unlike standard tie-rod cylinders, utilizes an extruded aluminum barrel with sensor grooves on both sides. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX20-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX20-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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 SAIJ32BX20-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 SAIJ32BX20-20S Is Used
Precision Clamping
Dial in the exact clamping contact point on delicate components using the 0-20mm travel window, preventing over-travel damage during machine setup.
Product Changeover
Rapidly adapt end-stops on a packaging line when switching to different product sizes, using the rear adjuster instead of physically swapping cylinders.
Short-Stroke Forming
Execute precise short-stroke pressing or forming tasks where the 402N push force and exact zero-to-20mm travel calibration ensure consistent operational depth.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX20-20S the Right Cylinder?
Select this 32mm bore cylinder when an application requires pinpoint end-position calibration at commissioning or during product changeovers, replacing the need for fixed-stroke SAI units. If your setup requires greater thrust, stepping up to the 40mm bore yields 628N of push force at 0.5 MPa. Remember that the rear screw functions only as an adjustable stop, not a lock; for load-holding without continuous air pressure, consider an external rod lock or the SAIL series.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 32mm bore, 20mm stroke, 20mm adjustment range, PT G1/8 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations.
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 SAIJ32BX20-20S FAQ
The rear adjusting screw lets you shorten the effective stroke by up to 20mm. Since the nominal stroke is 20mm, this creates a 0-20mm usable travel window, allowing you to fine-tune the end position down to a zero-mm stop without adding external stops.
At 0.5 MPa operating pressure, this double-acting cylinder provides 402N of push force and 345N of pull force. It can reach a maximum push force of 724N at 0.9 MPa.
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