This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX155, 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 SI160AX155
The AirTAC Airtac SI160 Standard Cylinder SI160AX155 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 155mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX155, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX155
- 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 SI160AX155
The AirTAC SI160AX155 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 155 mm stroke. It delivers 10053 N push force at 0.5 MPa. The direct replacement is the SAI160AX155, featuring a SUS420J2 stainless rod and G3/4 port.
This SAI upgrade uses two Y-shaped one-way piston seals for low start-up pressure. Note: lacking a -S suffix, this SKU cannot accept sensors.
Airtac SI160 Standard Cylinder SI160AX155 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX155 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX155 |
| Bore size | Ø160 mm |
| Stroke | 155 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 SAI160AX155 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 SAI160AX155 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 SI160AX155
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×155 | 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 SI160AX155 Is Used
Heavy Press Operations
Drives large stamping and forming presses requiring 10053 N thrust at 0.5 MPa, utilizing the 155 mm stroke to actuate heavy tooling.
Automated Assembly Lines
Shifts substantial jigs and fixtures along ISO 15552 mounting interfaces, relying on the 50 mm adjustable cushions to stop large masses smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160AX155 with the SAI160AX155
To replace the SI160AX155, order the SAI160AX155. Verify the ISO 15552 mounting interface, 155 mm stroke, G3/4 port, and M36x2 thread. The SUS420J2 rod resists corrosion. Without a -S magnet, no CS1-B/DS1-B sensor can be fitted. For sizing, a 125 mm bore yields 6136 N [email protected], while a 200 mm bore yields 15708 N. The cushion only decelerates; use a pilot check valve or SAIL/BSAI lock to hold loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX155
- ✓ 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 SI160AX155 FAQ
Yes, the AirTAC SI160AX155 is discontinued. The direct replacement is the SAI160AX155. It shares the exact same ISO 15552 mounting interface, 160 mm bore, 155 mm stroke, output force, G3/4 port, and SUS420J2 stainless rod material.
It features a G3/4 port. The force ratings are: 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 maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX155
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX155 replacement — usually within 7-8 hours.