Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-20S
The AirTAC SAIJ32X50-20-S is a double-acting, adjustable-stroke ISO 15552 profile cylinder. A rear stopper screw lets you dial back the 50 mm nominal travel, creating a precise 30-50 mm usable window for exact end-position tuning at commissioning. It delivers 402 N of push force at 0.5 MPa and features a G1/8 port.
This variant uses a SUS420J2 stainless steel rod for corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel carries sensor grooves on both sides, and the mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAIJ32AX50-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SAIJ32AX50-20S Is Used
Machine Setup Tuning
Fine-tune the 30-50 mm travel window during commissioning to perfectly strike a clamped part without adding external stopper blocks.
Product Changeover
Quickly adjust the retract end-position on a packaging line when switching to a different product size, saving changeover time.
Light Assembly Positioning
Leverage the 402 N push force to move small components into a precise workstation, dialing back the stroke by up to 20 mm as needed.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-20S the Right Cylinder?
Choose this 32 mm bore if 402 N push force at 0.5 MPa is sufficient, or step up to the 40 mm bore for 628 N if your load demands more. The adjustable rear stopper is ideal for machine setups requiring variable end stops without swapping cylinders, unlike a fixed-stroke SAI. Remember, the adjuster is a travel stop, not a lock; it will not hold the load without live air. For position holding, consider a SAIL or BSAI cylinder.
When matching this ISO 15552 replacement, verify the 50 mm stroke, 20 mm adjustment, PT tapered port threads, and the -S magnet option. Because the stroke is under 300 mm, side-load stress on the 12 mm rod thread is minimal, though external guides are still recommended for heavy lateral loads.
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 SAIJ32AX50-20S 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 can reach up to 724 N push force at 0.9 MPa.
A rear stopper screw lets you shorten the 50 mm nominal stroke by up to 20 mm, creating a 30-50 mm usable travel window. This allows exact end-position tuning without changing the cylinder.
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