This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX5, 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 SI160AX5
The AirTAC Airtac SI160 Standard Cylinder SI160AX5 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 5mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX5, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke5 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX5
- 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 SI160AX5
The AirTAC SI160AX5 is a discontinued double-acting ISO 15552 profile cylinder delivering 10053 N push force at 0.5 MPa. It features a 160 mm bore, 5 mm stroke, and a G3/4 port. AirTAC replaced this EOL unit with the SAI160AX5, a direct upgrade sharing the same ISO 15552 mounting interface, bore, and output force.
The SAI160AX5 upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. This specific SI160AX5 SKU uses the SUS420J2 stainless steel rod (A option) and lacks a magnet, so it cannot accept CS1-B or DS1-B sensors. For load holding, note that the air cushion only decelerates; use an external rod lock or SAIL/BSAI variant.
Airtac SI160 Standard Cylinder SI160AX5 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX5 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX5 |
| Bore size | Ø160 mm |
| Stroke | 5 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 SAI160AX5 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 SAI160AX5 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 SI160AX5
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×5 | 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 SI160AX5 Is Used
Short-Stroke Clamping
Ideal for high-force 10053 N clamping of heavy steel plates in machining fixtures where only 5 mm of travel is needed.
Riveting Press
Provides the rigid 160 mm bore thrust required for riveting or staking operations within a compact 5 mm displacement.
Heavy Positioning Stop
Acts as a robust hard stop or positioning pin actuator for 500 kg class pallets, utilizing its 512 kg vertical lift margin.
Replacing the Airtac SI160 Standard Cylinder SI160AX5 with the SAI160AX5
To replace the discontinued SI160AX5, order the SAI160AX5. Verify the ISO 15552 mounting interface, the 160 mm bore, 5 mm stroke, and G3/4 port. This unit uses the SUS420J2 stainless rod. Because it lacks the -S magnet, it cannot support CS1-B/DS1-B switches. If sizing alternatives, the 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. For holding loads without live air, the cushion will not lock the piston; select the SAIL or BSAI lock variant, or add a pilot check valve. The 5 mm stroke is very short, so guide rods are recommended to prevent side-load bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX5
- ✓ 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 SI160AX5 FAQ
Yes, the SI160AX5 is discontinued. The direct replacement is the SAI160AX5. It shares the identical ISO 15552 mounting interface, 160 mm bore, 5 mm stroke, and G3/4 port, fitting existing fixtures perfectly.
The 160 mm bore uses a G3/4 port. It delivers 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 SAI160AX5
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX5 replacement — usually within 7-8 hours.