This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX165, 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 SI160AX165
The AirTAC Airtac SI160 Standard Cylinder SI160AX165 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 165mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX165, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke165 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX165
- 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 SI160AX165
The AirTAC SI160AX165 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 165 mm stroke, delivering 10053 N of push force at 0.5 MPa. It is superseded by the SAI160AX165 direct replacement, which matches the exact bore, stroke, output force, G3/4 port, and mounting interface. The SAI upgrade introduces an advanced two Y-shaped one-way piston seal for lower start-up pressure and longer life, while the SAI family adds SAIL and BSAI lock variants unavailable in the legacy line.
This specific SKU features a SUS420J2 stainless steel piston rod for corrosion resistance but lacks a magnet, meaning it cannot accept position sensors. Note that without live air, the cylinder drifts; the air cushion only decelerates the load near stroke end.
Airtac SI160 Standard Cylinder SI160AX165 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX165 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX165 |
| Bore size | Ø160 mm |
| Stroke | 165 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 SAI160AX165 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 SAI160AX165 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 SI160AX165
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×165 | 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 SI160AX165 Is Used
Heavy Stamping Press
Drives large tonnage stamping dies with a 10053 N push force at 0.5 MPa, utilizing the SUS420J2 stainless rod in harsh industrial environments.
Automated Assembly Fixture
Clamps massive structural components securely using the ISO 15552 mounting interface, absorbing end-of-stroke impacts via the 50 mm adjustable cushions.
Replacing the Airtac SI160 Standard Cylinder SI160AX165 with the SAI160AX165
To replace the discontinued SI160AX165, order the SAI160AX165. Verify that your fixture uses the standard ISO 15552 mounting interface and confirm the G3/4 port size, M36x2 rod thread, and 50 mm adjustable cushion strokes. Because this SKU lacks a magnet, it cannot support legacy CS1-B or DS1-B sensors; if sensing is required, switch to an SAI model with the -S magnet option. When sizing, a neighboring 200 mm bore offers higher force, while dropping to 125 mm reduces the footprint. At 0.5 MPa, this 160 mm bore outputs 10053 N push and 9425 N pull. For applications requiring load holding on air loss, a standard cylinder will drift; integrate an external pilot check valve or explore the SAIL or BSAI lock variants. The 165 mm stroke is under the 300 mm threshold, so rod bending is minimal, but always ensure proper guide alignment to prevent side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX165
- ✓ 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 SI160AX165 FAQ
Yes, the SI160AX165 is discontinued. The direct replacement is the SAI160AX165. It is dimensionally interchangeable per the ISO 15552 mounting interface, offering the same 160 mm bore, 165 mm stroke, force, and G3/4 port.
The 160 mm bore cylinder operates at 30-500 mm/s. At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX165
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX165 replacement — usually within 7-8 hours.