This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX240S, 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 SI160AX240S
The AirTAC SI160 Standard Cylinder SI160AX240S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 240mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX240S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX240S
- 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 SI160AX240S
The AirTAC SI160AX240S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 240 mm stroke. It delivers a robust 10053 N push force at 0.5 MPa via its G3/4 port. AirTAC replaced this legacy unit with the SAI160AX240S, a direct upgrade retaining the exact same ISO 15552 mounting interface, stroke, output force, and accessories.
The SAI successor features an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. You can specify a SUS420J2 stainless steel rod (the -A code) for corrosion resistance, or a Viton H seal to handle temperatures up to 150 C. The built-in magnet supports legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160AX240S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX240S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX240S |
| Bore size | Ø160 mm |
| Stroke | 240 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 SAI160AX240S 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 SAI160AX240S 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 SI160AX240S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×240 | 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 SI160AX240S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053 N of push force at 0.5 MPa with stable 160 mm bore guidance.
Large Mold Clamping
Secures substantial injection molds via the ISO 15552 mounting interface, utilizing the SUS420J2 rod for plant moisture resistance.
Replacing the Airtac SI160 Standard Cylinder SI160AX240S with the SAI160AX240S
To replace the SI160AX240S, order the SAI160AX240S. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the 240 mm stroke, G3/4 port, and the -S magnet for position sensing. The SAI family also introduces lock variants absent in the SI line: consider SAIL or BSAI if you need mechanical load holding, because a standard cylinder drifts without live air and its cushion only decelerates at stroke end. Sizing down, a 125 mm bore yields 6136 N push at 0.5 MPa; sizing up to 200 mm provides 15708 N. The -A rod denotes SUS420J2 stainless steel. At 240 mm stroke, side-load risks are moderate, but always guide the load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX240S
- ✓ 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 SI160AX240S FAQ
Yes, the SI160AX240S is discontinued. The direct replacement is the SAI160AX240S. It is dimensionally interchangeable per ISO 15552, keeping the same 160 mm bore, 240 mm stroke, G3/4 port, and mounting fixtures.
It features a G3/4 port and provides 10053 N push / 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 SAI160AX240S
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