This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX115, 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 SI160AX115
The AirTAC Airtac SI160 Standard Cylinder SI160AX115 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 115mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX115, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX115
- 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 SI160AX115
The AirTAC SI160AX115 is a discontinued double-acting ISO 15552 profile cylinder delivering 10053 N push force at 0.5 MPa. AirTAC replaced it with the SAI160AX115 direct replacement. The SAI maintains the exact G3/4 port, M36x2 thread, and ISO 15552 mounting interface, fitting existing fixtures seamlessly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This specific SKU uses an SUS420J2 stainless steel rod (option A) but lacks a magnet, so it cannot take CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160AX115 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX115 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX115 |
| Bore size | Ø160 mm |
| Stroke | 115 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 SAI160AX115 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 SAI160AX115 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 SI160AX115
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×115 | 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 SI160AX115 Is Used
Heavy Stamping Press
Drives large platens in metal forming with 14074 N push force at 0.7 MPa, utilizing the adjustable 50 mm cushion to absorb high kinetic energy.
Pallet Lift Station
Raises heavy loads with a safe working capacity near 6032 N, relying on the robust 40 mm carbon or SUS420J2 rod for structural integrity.
Automated Assembly Fixture
Clamps large components securely using the ISO 15552 mounting interface, dropping directly into existing tooling without redesign.
Replacing the Airtac SI160 Standard Cylinder SI160AX115 with the SAI160AX115
To replace the SI160AX115, order the SAI160AX115. Confirm the ISO 15552 mounting interface, 160 mm bore, 115 mm stroke, G3/4 port, and SUS420J2 rod. Because this SKU lacks the -S magnet, it cannot accept position sensors; order a magnet-equipped version if you need CS1-B/DS1-B switches. For sizing, 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 since the 50 mm cushion only decelerates; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Since 115 mm is under 300 mm, side-load risks are low, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX115
- ✓ 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 SI160AX115 FAQ
Yes, the SI160AX115 is discontinued. The direct replacement is the SAI160AX115. It shares the same ISO 15552 mounting interface, 160 mm bore, 115 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
The bore is 160 mm with a G3/4 port. 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 max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX115
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX115 replacement — usually within 7-8 hours.