This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX70, 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 SI160AX70
The AirTAC Airtac SI160 Standard Cylinder SI160AX70 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 70mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX70, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke70 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX70
- 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 SI160AX70
The AirTAC SI160AX70 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 70 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced it with the SAI160AX70, a direct upgrade sharing the exact ISO 15552 mounting interface, M36x2 thread, and 50 mm cushions.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU lacks a magnet, so it cannot accept position sensors. The -A rod code denotes a SUS420J2 stainless steel piston rod for corrosion resistance.
Airtac SI160 Standard Cylinder SI160AX70 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX70 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX70 |
| Bore size | Ø160 mm |
| Stroke | 70 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 SAI160AX70 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 SAI160AX70 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 SI160AX70
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×70 | 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 SI160AX70 Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to hold large metal castings firmly during machining operations.
Pallet Lift Stations
Provides a safe 6032 N working load to elevate loaded pallets within high-throughput logistics hubs.
Mold Actuation
Uses the SUS420J2 stainless rod to reliably shift heavy resin molds in humid production environments.
Replacing the Airtac SI160 Standard Cylinder SI160AX70 with the SAI160AX70
To replace the SI160AX70, order the SAI160AX70. Verify your ISO 15552 mounting hardware (foot, flange, or trunnion), the G3/4 air port, and the 70 mm stroke. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is needed, select an SAI model with the S suffix. For sizing down, a 125 mm bore yields 6136 N at 0.5 MPa; for higher force, a 200 mm bore yields 15708 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX70
- ✓ 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 SI160AX70 FAQ
Yes, the SI160AX70 is discontinued. The direct replacement is the SAI160AX70. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 70 mm stroke, force, G3/4 port, and mounting interface.
This double-acting cylinder uses a G3/4 port. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX70
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX70 replacement — usually within 7-8 hours.