Airtac SAIJ160 Adjustable Cylinder SAIJ160BX375-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX375-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 375mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke375 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX375-20S
The AirTAC SAIJ160X375-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 355 to 375 mm. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers substantial force, generating 18095N of pull at 0.9 MPa. The extruded aluminum barrel features sensor grooves on both sides to accommodate CMSE reed and DMSE electronic switches.
This adjustable-stroke design allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops. The rear adjuster acts as a travel stop to set the end position, not a lock, meaning it will not hold a load without live air. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX375-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX375-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 375 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX375-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×375 | 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 SAIJ160 Adjustable Cylinder SAIJ160BX375-20S Is Used
Heavy Press Fine-Tuning
Dial in the exact 355-375 mm retract position during heavy press commissioning to accommodate varying material thicknesses without external stopper hardware.
Product Line Changeover
Quickly adjust the end-stop distance on automated assembly lines when switching between different product sizes, saving downtime on physical cylinder swaps.
Large Fixture Positioning
Securely position large manufacturing fixtures using the robust 40 mm SUS304 rod, relying on the rear screw to set the precise resting state.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX375-20S the Right Cylinder?
Choose this 160 mm bore when you need heavy thrust that exceeds the 11045N pull of a 125 mm cylinder at 0.9 MPa, but without stepping up to the massive 28274N push of a 200 mm bore. The adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers. When replacing an ISO 15552 cylinder, match the 160 mm bore, 375 mm stroke, 20 mm adjustment, PT ports, and the -S magnet.
Because the 375 mm stroke is relatively long, the 40 mm rod diameter and M36x2 thread provide robust support, but an external guide is still recommended to prevent excessive side-load wear on the seals. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR styles found on some standard cylinders.
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 SAIJ160 Adjustable Cylinder SAIJ160BX375-20S FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder provides 18095N of pull force and 14074N of push force at 0.7 MPa. The maximum operating pressure is 1.0 MPa.
The rear adjuster screw allows you to shorten the effective travel from the nominal 375 mm down to 355 mm, creating a 355-375 mm usable window. This stopper sets the end position but does not lock or hold the load without continuous air pressure.
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