This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X170S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI160 Standard Cylinder SI160X170S
The AirTAC SI160 Standard Cylinder SI160X170S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 170mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X170S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X170S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI160 Standard Cylinder SI160X170S
The AirTAC SI160X170S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 170 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160X170S, which matches the exact ISO 15552 mounting interface, bore, stroke, output force, and port size for existing fixtures.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also introduces SAIL, SAIF, and BSAI lock variants the SI lacked. The -S suffix means it has a piston magnet for CS1-B/DS1-B switches.
Airtac SI160 Standard Cylinder SI160X170S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X170S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X170S |
| Bore size | Ø160 mm |
| Stroke | 170 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160X170S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAI160X170S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160X170S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×170 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI160 Standard Cylinder SI160X170S Is Used
Heavy Press Operations
Drives large forming and stamping presses requiring 10053 N of thrust at 0.5 MPa, utilizing the 170 mm stroke to actuate heavy tooling.
Industrial Clamp Systems
Secures large fabricated components during welding or machining, providing stable clamping via the robust 160 mm bore profile barrel.
Replacing the Airtac SI160 Standard Cylinder SI160X170S with the SAI160X170S
To replace the SI160X170S, order the SAI160X170S. Confirm the ISO 15552 mounting interface (LB, FA, FB, CA, CB, TC), the 170 mm stroke, the G3/4 port, and the -S magnet. The SAI uses current AirTAC switches instead of the legacy CS1-B/DS1-B. Sizing both ways: a 160 mm bore gives 10053 N push at 0.5 MPa, while a 200 mm bore gives 15708 N. For stroke lengths of 300 mm or more, add external guide rails to prevent rod bending and side loads. A plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variant, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X170S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160X170S FAQ
Yes, the SI160X170S is discontinued. The direct replacement is the SAI160X170S. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 170 mm stroke, G3/4 port, and mounting accessories.
The bore is 160 mm with a G3/4 port. Force output is 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X170S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X170S replacement — usually within 7-8 hours.