Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40S 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 SAIJ160BX425-40S
The AirTAC SAIJ160X425-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, enabling a usable travel window of 385 to 425 mm. Built with a SUS304 stainless steel rod and a PT tapered port, it delivers a robust 14074 N push force at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and because this is an -S variant, it comes magnetized for precise position detection using AirTAC CMSE reed or DMSE electronic solid-state switches.
This adjustable-stroke design allows you to fine-tune the retract end-position at commissioning or during product changeover without swapping the cylinder or adding external stops. The rear adjuster acts purely as a mechanical stop to set deceleration, not a lock, meaning it cannot hold a load without live air pressure. For load-holding applications without continuous pressure, consider the SAIL pneumatic lock, BSAI clamp-lock, or an external rod lock.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40S |
|---|---|
| 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 SAIJ160BX425-40S
| 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 SAIJ160BX425-40S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within a 385-425 mm window during machine commissioning without installing external physical stops.
Product Size Changeover
Quickly adapt the retract stroke distance on a production line when switching between different product sizes or formats.
Heavy-Duty Positioning
Leverage the 14074 N push force to move and position heavy assemblies while fine-tuning the final resting point via the rear adjuster.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40S the Right Cylinder?
Selecting this 160 mm bore cylinder makes sense when your application requires substantial thrust, such as the 14074 N push force at 0.7 MPa, but still demands exact end-position tuning. If you need less force, stepping down to a 125 mm bore yields 8590 N push at 0.7 MPa, whereas moving up to a 200 mm bore provides 21991 N. The SAIJ is chosen over a fixed-stroke SAI when a variable end-stop is required for machine setup flexibility. When replacing an ISO 15552 cylinder, match the 160 mm bore, 425 mm stroke, 40 mm adjustment, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Because this model features a 425 mm stroke, which exceeds the standard 300 mm threshold, the long unsupported travel necessitates an external guide to prevent excessive side-loading on the 40 mm diameter rod and its M36x2 thread. The operating speed is 30-500 mm/s, and the cylinder uses variable air cushions at both ends to decelerate the heavy load.
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 SAIJ160BX425-40S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. The maximum operating pressure is 1.0 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 40 mm from the nominal 425 mm, giving a usable travel window of 385 to 425 mm. The adjuster functions as a mechanical stop for end-position tuning and is not a lock, so live air pressure is required to hold the load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.