Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-75S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 425mm 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
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-75S
The AirTAC SAIJ160X425-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 350 to 425 mm. It delivers substantial force, generating 14074 N of push thrust at 0.7 MPa, making it suitable for heavy-duty positioning. The barrel is extruded aluminum with sensor grooves on both sides, and this version includes a magnet for CMSE reed and DMSE electronic sensors.
This model uses a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads (G3/4). The rear adjustment screw acts strictly as a travel stop to fine-tune the retract end-position during commissioning without adding external stops. It is not a locking device, so load-holding without live air requires a SAIL or BSAI cylinder.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-75S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 425 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 SAIJ160BX425-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×425 | 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 SAIJ160BX425-75S Is Used
Heavy Press Tuning
Dial in the exact 350-425 mm retract position on a heavy press during product changeover without swapping out the entire cylinder.
Variable End Stops
Adjust the rear stop screw on the fly to accommodate different material thicknesses on the production line.
Bending Machine Setup
Fine-tune the stroke end-position during commissioning of large bending equipment, ensuring precise material forming.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-75S the Right Cylinder?
Select this 160 mm bore when an application requires heavy force (14074 N at 0.7 MPa) and precise variable end-stops. If your process requires less force, stepping down to a 125 mm bore yields 8590 N at 0.7 MPa. Choose the SAIJ adjustable-stroke design over a fixed SAI when you need to dial in the exact retract position during machine setup or product changeover. To replace this cylinder, match the 160 mm bore, 425 mm stroke, 75 mm adjust, PT G3/4 ports, SUS304 rod, and the -S magnet. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the 425 mm stroke is long, the 40 mm rod diameter and M36x2 thread still need external guidance to prevent excessive side-loading on the unsupported piston rod.
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 SAIJ160BX425-75S FAQ
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder generates 14074 N of push thrust and 9425 N of pull thrust.
The rear adjuster screw allows you to shorten the effective travel from 425 mm down to 350 mm, providing a 75 mm tuning window. It acts as a travel stop and does not lock the load without live air pressure.
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