This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX160S, 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 SI160AX160S
The AirTAC SI160 Standard Cylinder SI160AX160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 160mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX160S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke160 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX160S
- 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 SI160AX160S
The AirTAC SI160AX160S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore, 160 mm stroke, and a SUS420J2 stainless steel rod. It delivers 10053 N push force at 0.5 MPa. The direct replacement is the SAI160AX160S, matching the interface, bore, stroke, force, G3/4 port, and mounting. The SAI upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life.
The -S magnet supports legacy CS1-B/DS1-B sensors, while a Viton H seal option raises the operating temperature to 150 C. Note that a plain cylinder drifts without live air; use the SAIL or BSAI lock variants for load holding.
Airtac SI160 Standard Cylinder SI160AX160S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX160S |
| Bore size | Ø160 mm |
| Stroke | 160 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 SAI160AX160S 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 SAI160AX160S 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 SI160AX160S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×160 | 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 SI160AX160S Is Used
Heavy Machinery Forming
Drives large forming presses and heavy-duty industrial machinery requiring up to 14074 N of thrust at 0.7 MPa.
Large Clamp Fixtures
Secures oversized components during machining using the 40 mm SUS420J2 stainless rod for corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160AX160S with the SAI160AX160S
To replace the SI160AX160S, order the SAI160AX160S. Confirm the ISO 15552 mounting interface, the G3/4 port, and the -S magnet for current AirTAC switches. The 160 mm bore yields 10053 N push at 0.5 MPa; if sizing down, a 125 mm bore provides 6136 N. If sizing up, a 200 mm bore offers 15708 N. The standard 160 mm stroke is well under the 1500 mm maximum, so no side-load guide is required. A plain cylinder does not hold load on air loss; for secure holding, select the SAIL air-released lock or BSAI clamp-lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX160S
- ✓ 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 SI160AX160S FAQ
Yes, the SI160AX160S is discontinued. The direct replacement is the SAI160AX160S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 160 mm stroke, force, G3/4 port, and mounting fixtures.
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, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX160S replacement — usually within 7-8 hours.