This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX125, 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 SI160AX125
The AirTAC SI160 Standard Cylinder SI160AX125 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 125mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX125, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX125
- 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 SI160AX125
The AirTAC SI160AX125 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore and 125mm stroke. It delivers 10053N push force at 0.5MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160AX125, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU uses a SUS420J2 stainless steel rod (-A) for corrosion resistance, but lacks a magnet, so it cannot accept position switches. For load holding, note that the air cushion only decelerates; use a pilot check valve or SAIL lock variant.
Airtac SI160 Standard Cylinder SI160AX125 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX125 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX125 |
| Bore size | Ø160 mm |
| Stroke | 125 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 SAI160AX125 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 SAI160AX125 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 SI160AX125
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 SI160AX125 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring high thrust, using the 10053N push force at 0.5MPa to form thick metal components reliably.
Injection Mold Clamp
Secures large injection molding halves, relying on the SUS420J2 stainless rod to resist environmental corrosion in humid production cells.
Replacing the Airtac SI160 Standard Cylinder SI160AX125 with the SAI160AX125
To replace the SI160AX125, order the SAI160AX125. Verify your ISO 15552 mounting fixtures, the G3/4 air port, and the M36x2 rod thread. Because this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors; choose a magnet-equipped SAI if position feedback is needed. Sizing context: the 160mm bore yields 10053N push at 0.5MPa, whereas a 200mm bore offers 15708N, and a 125mm bore provides 6136N. If your application requires the rod to hold a load without live air, select the SAIL or BSAI lock variant, or install an external pilot check valve, as standard cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX125
- ✓ 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 SI160AX125 FAQ
Yes, the AirTAC SI160AX125 is discontinued. The direct replacement is the SAI160AX125. It shares the identical ISO 15552 mounting interface, 160mm bore, 125mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/4 air port. It delivers 10053N push and 9425N pull at 0.5MPa, 14074N push at 0.7MPa, and 18095N push at 0.9MPa. The theoretical maximum force is 2050kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX125
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX125 replacement — usually within 7-8 hours.