This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX20, 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 SI160AX20
The AirTAC Airtac SI160 Standard Cylinder SI160AX20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 20mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke20 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX20
- 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 SI160AX20
The AirTAC SI160AX20 is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 20mm stroke, delivering 10053N push force at 0.5MPa. The direct replacement is the SAI160AX20, matching the G3/4 port, M36x2 thread, and ISO 15552 mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. This SKU lacks a magnet and cannot take a sensor. The -A rod is SUS420J2 stainless steel.
Airtac SI160 Standard Cylinder SI160AX20 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX20 |
| Bore size | Ø160 mm |
| Stroke | 20 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 SAI160AX20 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 SAI160AX20 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 SI160AX20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×20 | 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 SI160AX20 Is Used
Heavy Stamping
Generates 14074N at 0.7MPa to drive heavy-duty stamping and forming presses with stable, high-tonnage force.
Mold Clamping
Secures large industrial molds using the SUS420J2 stainless rod option, providing reliable resistance in humid environments.
Press Fitment
Delivers steady vertical load for assembling large bearings, utilizing the 50mm adjustable cushion to prevent end-impact.
Replacing the Airtac SI160 Standard Cylinder SI160AX20 with the SAI160AX20
To replace the SI160AX20, order the SAI160AX20. Verify the ISO 15552 interface, 160mm bore, 20mm stroke, G3/4 port, and SUS420J2 stainless rod (-A). Since this SKU lacks a magnet, it cannot accept CS1-B/DS1-B sensors. For sizing, the 125mm bore yields 6136N [email protected], while the 200mm bore yields 15708N. The air cushion only decelerates; it does not hold load on air loss. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX20
- ✓ 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 SI160AX20 FAQ
Yes, the SI160AX20 is discontinued. The direct replacement is the SAI160AX20, which shares the same ISO 15552 mounting interface, 160mm bore, 20mm stroke, force, and G3/4 port.
It features a G3/4 port. Force ratings are 10053N push and 9425N pull at 0.5MPa, 14074N push at 0.7MPa, and a theoretical max of 2050 kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX20
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX20 replacement — usually within 7-8 hours.