This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX220S, 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 SI160AX220S
The AirTAC SI160 Standard Cylinder SI160AX220S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 220mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX220S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke220 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX220S
- 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 SI160AX220S
The AirTAC SI160AX220S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 220 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160AX220S, matching the bore, stroke, force, port, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI lock variants the SI lacked. The -A rod is SUS420J2 stainless steel, and the -S magnet pairs with CS1-B/DS1-B switches.
Airtac SI160 Standard Cylinder SI160AX220S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX220S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX220S |
| Bore size | Ø160 mm |
| Stroke | 220 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 SAI160AX220S 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 SAI160AX220S 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 SI160AX220S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×220 | 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 SI160AX220S Is Used
Heavy Pressing
Drives large stamping and forming presses requiring 10053 N of thrust at 0.5 MPa.
Automated Clamping
Secures heavy fabrication components during machining using the SUS420J2 stainless rod.
Replacing the Airtac SI160 Standard Cylinder SI160AX220S with the SAI160AX220S
To replace the SI160AX220S, order the SAI160AX220S. Confirm the ISO 15552 mounting interface, 220 mm stroke, G3/4 port, and SUS420J2 stainless rod. The -S magnet works with legacy CS1-B/DS1-B sensors, though the SAI uses current AirTAC switches. For load holding, note that a plain cylinder drifts without live air; the cushion only decelerates. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Neighbouring bores are 125 mm (6136 N) and 200 mm (15708 N) at 0.5 MPa. Since the 220 mm stroke exceeds 300 mm? No, but for any stroke over 300 mm, add a guide to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX220S
- ✓ 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 SI160AX220S FAQ
Yes, the SI160AX220S is discontinued. The direct replacement is the SAI160AX220S, which shares the same ISO 15552 mounting interface, 160 mm bore, 220 mm stroke, force, and G3/4 port.
It has a G3/4 port. Force ratings are: 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX220S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX220S replacement — usually within 7-8 hours.