This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX500S, 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 SI160AX500S
The AirTAC SI160 Standard Cylinder SI160AX500S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 500mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX500S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX500S
- 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 SI160AX500S
The AirTAC SI160AX500S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore, 500 mm stroke, and SUS420J2 stainless steel piston rod. It delivers 10053 N push force at 0.5 MPa. AirTAC replaced it with the SAI160AX500S, a direct upgrade retaining the identical ISO 15552 mounting interface, stroke, output force, and G3/4 port.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This -S model has a piston magnet for legacy CS1-B/DS1-B sensors, and a Viton H seal option extends operation to 150 C.
Airtac SI160 Standard Cylinder SI160AX500S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX500S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX500S |
| Bore size | Ø160 mm |
| Stroke | 500 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 SAI160AX500S 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 SAI160AX500S 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 SI160AX500S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×500 | 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 SI160AX500S Is Used
Heavy Press Forming
Generates up to 14074 N at 0.7 MPa for forming and stamping thick metal components in automated fabrication lines.
Pallet Positioning
Uses the 500 mm stroke to push heavy loaded pallets laterally onto transfer conveyors with a 512 kg safe lift margin.
Mold Actuation
Drives large core pulls in injection molding machinery where the SUS420J2 stainless rod resists humid environments.
Replacing the Airtac SI160 Standard Cylinder SI160AX500S with the SAI160AX500S
To replace this SI160AX500S, order the SAI160AX500S. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the M36x2 rod thread, and the G3/4 air port. The -S magnet and -A SUS420J2 rod carry over directly. Because this is a 500 mm stroke, use an external guide to prevent rod bending and side loads. If sizing down, a 125 mm bore yields 6136 N at 0.5 MPa; if sizing up, a 200 mm bore gives 15708 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use the SAIL or BSAI lock variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX500S
- ✓ 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 SI160AX500S FAQ
Yes, the SI160AX500S is discontinued. The direct replacement is the SAI160AX500S. It shares the identical ISO 15552 mounting interface, 160 mm bore, 500 mm stroke, force, and G3/4 port, fitting existing fixtures perfectly.
It uses a G3/4 air 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 SAI160AX500S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX500S replacement — usually within 7-8 hours.