This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X500, 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 SI160X500
The AirTAC SI160 Standard Cylinder SI160X500 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 SAI160X500, 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 → SAI160X500
- 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 SI160X500
The AirTAC SI160X500 is a discontinued double-acting ISO 15552 profile cylinder, delivering a thrust of 10053 N at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAI160X500, a direct upgrade retaining the exact 160 mm bore, 500 mm stroke, G3/4 port, and ISO 15552 mounting interface.
The SAI successor features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. If high temperatures are needed, Viton H seals raise the range to 0-150 C.
Airtac SI160 Standard Cylinder SI160X500 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X500 |
| 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 SAI160X500 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 SAI160X500 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 SI160X500
| 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 SI160X500 Is Used
Heavy Press Forming
Applies the 10053 N push force at 0.5 MPa for stamping and forming dense metal components in automated fabrication lines.
Large Mold Handling
Shifts substantial industrial molds along the 500 mm stroke, requiring external guides to manage side-load and rod bending.
Replacing the Airtac SI160 Standard Cylinder SI160X500 with the SAI160X500
To replace the SI160X500, order the SAI160X500 and confirm the ISO 15552 mounting interface, 500 mm stroke, and G3/4 port. Because this non-magnetic SKU lacks a sensor groove piston ring, it cannot take position switches. If sizing up or down, the 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. A plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variant, or an external pilot check valve. With a 500 mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X500
- ✓ 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 SI160X500 FAQ
Yes, the SI160X500 is discontinued. The direct replacement is the SAI160X500, which shares the identical ISO 15552 mounting interface, 160 mm bore, 500 mm stroke, output force, and G3/4 port.
The G3/4 port feeds a 40 mm rod. It generates 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N at 0.9 MPa, and a maximum theoretical force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X500
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X500 replacement — usually within 7-8 hours.