This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX115S, 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 SI160AX115S
The AirTAC SI160 Standard Cylinder SI160AX115S 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 SAI160AX115S, 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 → SAI160AX115S
- 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 SI160AX115S
The AirTAC SI160AX115S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore, 115 mm stroke, and a SUS420J2 stainless steel rod. Delivering 10053 N push force at 0.5 MPa, it is replaced by the SAI160AX115S. This direct upgrade shares the exact ISO 15552 mounting interface, G3/4 port, and 2050 kgf max force, fitting existing fixtures perfectly.
The SAI upgrade features an advanced two Y-shaped one-way piston seal for low start-up pressure and long life. The -S magnet supports legacy CS1-B/DS1-B sensors, while a plain cylinder drifts without air; use the SAIL or BSAI lock variants for load holding.
Airtac SI160 Standard Cylinder SI160AX115S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX115S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX115S |
| 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 SAI160AX115S 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 SAI160AX115S 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 SI160AX115S
| 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 SI160AX115S Is Used
Heavy Press Clamping
Applies the 14074 N push force at 0.7 MPa to secure large metal castings during machining operations.
Injection Molding Extraction
Utilizes the SUS420J2 stainless rod to extract heavy molded parts reliably in humid or washdown environments.
Massive Platen Lowering
Lowers heavy industrial platens with a 512 kg vertical lift capacity while using adjustable end cushions to prevent impact.
Replacing the Airtac SI160 Standard Cylinder SI160AX115S with the SAI160AX115S
To replace the SI160AX115S, order the SAI160AX115S and verify the ISO 15552 mounting interface, 115 mm stroke, and G3/4 port. The -A rod is SUS420J2 stainless steel and the -S magnet works with legacy 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. Note that a plain cylinder does not hold load without air; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The 30-500 mm/s speed and 50 mm cushions suit heavy duty cycles.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX115S
- ✓ 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 SI160AX115S FAQ
Yes, the SI160AX115S is discontinued. The direct replacement is the SAI160AX115S. It shares the exact ISO 15552 mounting interface, 160 mm bore, 115 mm stroke, G3/4 port, and output force, so it drops directly into existing fixtures.
The bore is 160 mm with 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. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX115S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX115S replacement — usually within 7-8 hours.