This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX170S, 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 SI160AX170S
The AirTAC SI160 Standard Cylinder SI160AX170S 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 SAI160AX170S, 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 → SAI160AX170S
- 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 SI160AX170S
The AirTAC SI160AX170S 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 via a G3/4 port. AirTAC replaced this legacy unit with the SAI160AX170S, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting accessories.
The SAI upgrade features a revised piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. This specific SI160AX170S variant includes the -A SUS420J2 stainless piston rod for corrosion resistance and the -S magnet for legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160AX170S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX170S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX170S |
| 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 SAI160AX170S 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 SAI160AX170S 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 SI160AX170S
| 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 SI160AX170S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring high thrust, utilizing the 10053 N push force at 0.5 MPa to form thick metal components.
Large Mold Clamping
Secures oversized injection molds or heavy fabrication fixtures, relying on the 40 mm SUS420J2 stainless rod for corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160AX170S with the SAI160AX170S
To replace the SI160AX170S, order the SAI160AX170S. Confirm the ISO 15552 mounting interface, the 170 mm stroke, the G3/4 port, and your mounting accessory (LB, FA, TC, etc.). Retain the -S magnet requirement; the SAI uses current AirTAC switches, while the legacy SI used CS1-B/DS1-B. Keep the -A SUS420J2 stainless rod specification if corrosion resistance is needed. If sizing down, a 125 mm bore yields 6136 N push at 0.5 MPa; if sizing up, a 200 mm bore yields 15708 N. Because this is a double-acting cylinder, it will not hold a load without live air—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX170S
- ✓ 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 SI160AX170S FAQ
Yes, the SI160AX170S is discontinued. The direct replacement is the SAI160AX170S. It shares the exact ISO 15552 mounting interface, 160 mm bore, 170 mm stroke, output force, G3/4 port, and mounting accessories, fitting directly into existing fixtures.
This 160 mm bore cylinder features a G3/4 port and a 40 mm piston rod. It delivers 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. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX170S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX170S replacement — usually within 7-8 hours.