This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX260S, 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 SI160AX260S
The AirTAC Airtac SI160 Standard Cylinder SI160AX260S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 260mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX260S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke260 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX260S
- 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 SI160AX260S
The AirTAC SI160AX260S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 260 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160AX260S, matching the interface, bore, stroke, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SI unit has an SUS420J2 stainless rod and a piston magnet for CS1-B/DS1-B switches.
Airtac SI160 Standard Cylinder SI160AX260S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX260S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX260S |
| Bore size | Ø160 mm |
| Stroke | 260 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 SAI160AX260S 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 SAI160AX260S 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 SI160AX260S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×260 | 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 SI160AX260S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping presses requiring 10053 N push force at 0.5 MPa to form thick metal plates.
Automated Clamp Station
Secures large fabricated steel frames in automated welding cells, relying on the SUS420J2 stainless rod for corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160AX260S with the SAI160AX260S
To replace the SI160AX260S, order the SAI160AX260S. Verify the ISO 15552 mounting interface, 260 mm stroke, G3/4 port, and M36x2 rod thread. The -S magnet enables current AirTAC switches, while the -A rod denotes SUS420J2 stainless steel. If you need more force, the 200 mm bore offers 15708 N at 0.5 MPa; if less is required, the 125 mm bore provides 6136 N. A plain cylinder drifts without air, so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 260 mm stroke, rod bending is low, but always guide external loads to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX260S
- ✓ 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 SI160AX260S FAQ
Yes, the SI160AX260S is discontinued. The direct replacement is the SAI160AX260S. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 260 mm stroke, 10053 N force, G3/4 port, and mounting fixtures.
The 160 mm bore 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 maximum theoretical force of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, the port is G3/4, and the cushion stroke is 50 mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX260S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX260S replacement — usually within 7-8 hours.