This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX260, 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 SI160AX260
The AirTAC Airtac SI160 Standard Cylinder SI160AX260 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 SAI160AX260, 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 → SAI160AX260
- 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 SI160AX260
The AirTAC SI160AX260 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 260 mm stroke. It delivers 10053 N push force at 0.5 MPa, utilizing a G3/4 air port and an M36x2 rod thread. The direct replacement is the current-production SAI160AX260, which matches the original bore, stroke, output force, port size, and ISO 15552 mounting interface for a seamless fixture retrofit.
The SAI upgrade introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This SI unit lacks a magnet (-S) and therefore cannot accept position sensors like the legacy CS1-B or DS1-B switches. For high-temperature environments up to 150 C, a Viton H seal option is available, and the -A rod designation indicates a SUS420J2 stainless steel piston rod for corrosion resistance.
Airtac SI160 Standard Cylinder SI160AX260 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX260 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX260 |
| 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 SAI160AX260 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 SAI160AX260 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 SI160AX260
| 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 SI160AX260 Is Used
Heavy Press Clamping
Generates up to 18095 N at 0.9 MPa for securing large metal castings during machining operations.
Pallet Lift Stations
Provides a safe vertical lift capacity of roughly 512 kg, ideal for raising heavy loaded pallets.
Injection Mold Ejection
Delivers the high push force necessary to eject dense industrial plastic components from molds.
Replacing the Airtac SI160 Standard Cylinder SI160AX260 with the SAI160AX260
To replace the discontinued SI160AX260, order the SAI160AX260, verifying that the ISO 15552 mounting interface, 160 mm bore, 260 mm stroke, G3/4 port, and mounting accessories match your existing fixture. Because this specific SKU lacks a magnet, it cannot support sensing; if position detection is required, an SAI model with the -S suffix and current AirTAC switches must be specified. For sizing alternatives, a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore provides 15708 N. Note that a plain ISO 15552 cylinder does not hold load on air loss—the cushion only decelerates—so for suspended loads, consider the SAIL or BSAI lock variants, or an external pilot check valve. Although 260 mm is under the 1500 mm standard maximum, always ensure adequate guide support to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX260
- ✓ 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 SI160AX260 FAQ
Yes, the SI160AX260 is discontinued. The direct replacement is the SAI160AX260. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 260 mm stroke, force, G3/4 port, and mounting interface.
This double-acting cylinder features a G3/4 air port and delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical maximum force of 2050 kgf at 1.0 MPa. It operates at speeds of 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX260
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX260 replacement — usually within 7-8 hours.