Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40 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 SAIJ160BX425-40
The AirTAC SAIJ160X425-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 385 to 425 mm, allowing you to dial back the nominal 425 mm stroke by up to 40 mm during machine commissioning. This bore size delivers massive thrust, pushing 18095 N at 0.9 MPa, making it suitable for heavy-duty press operations.
The piston rod is constructed from SUS304 stainless steel for superior corrosion resistance. It uses a PT tapered G3/4 port and operates at speeds between 30 and 500 mm/s. The mounting interface covers Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR brackets entirely.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40 |
|---|---|
| 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 SAIJ160BX425-40
| 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 SAIJ160BX425-40 Is Used
Heavy Press Tuning
Dial in the exact 385 to 425 mm end-position during initial commissioning to accommodate varying material thicknesses without adding external mechanical stops.
Product Changeover
Quickly adjust the retract end-stop on automated assembly lines when switching between different product sizes and tooling profiles.
Fixture Positioning
Leverage the 18095 N push force at 0.9 MPa to secure large structural components, using the rear screw to set precise clamping travel limits.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40 the Right Cylinder?
Select this 160 mm bore cylinder when an 80 mm bore (providing 4523 N push force at 0.9 MPa) is insufficient for your heavy load requirements. The adjustable stroke is ideal for product changeovers, letting you fine-tune the end position without swapping hardware. Because the 425 mm stroke is long, an external guide is recommended to prevent excessive rod side-loading.
When matching ISO 15552 dimensions, ensure you specify the 425 mm stroke, 40 mm adjustment range, PT port thread, and SUS304 rod material. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series instead.
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 SAIJ160BX425-40 FAQ
The external rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective travel from 425 mm down to 385 mm. It fine-tunes the retract end position but does not lock the load without live air pressure.
At an operating pressure of 0.9 MPa, this 160 mm bore cylinder generates a push force of 18095 N and a pull force of 9425 N. It can achieve a maximum push force of 10053 N at 0.5 MPa.
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