This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX40S, 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 SI160AX40S
The AirTAC Airtac SI160 Standard Cylinder SI160AX40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 40mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX40S
- 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 SI160AX40S
The AirTAC SI160AX40S is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 40mm stroke. Built for heavy-duty tasks, it delivers 10053N push force at 0.5MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI160AX40S, a direct replacement retaining the exact ISO 15552 mounting interface, M36x2 thread, and output force.
The SAI upgrade features a modernized piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. This specific unit includes the -A SUS420J2 stainless rod and -S magnet for legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160AX40S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX40S |
| Bore size | Ø160 mm |
| Stroke | 40 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 SAI160AX40S 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 SAI160AX40S 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 SI160AX40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×40 | 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 SI160AX40S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053N push force at 0.5MPa with stable 160mm bore rigidity.
Mold Clamping Station
Secures large injection molds via ISO 15552 mounting, using the 50mm adjustable cushion to halt the 40mm stroke.
Replacing the Airtac SI160 Standard Cylinder SI160AX40S with the SAI160AX40S
To replace the SI160AX40S, order the SAI160AX40S. Verify the ISO 15552 mounting interface, 160mm bore, 40mm stroke, G3/4 port, and your specific mounting accessory. The -A suffix indicates a SUS420J2 stainless rod, and -S denotes the magnet for position sensing. If sizing up or down, evaluate neighboring bores against the 10053N push force at 0.5MPa. Note that a plain cylinder drifts without live air; the 50mm cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds SAIF valve options.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX40S
- ✓ 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 SI160AX40S FAQ
Yes, the SI160AX40S is discontinued. The direct replacement is the SAI160AX40S, which shares the identical ISO 15552 mounting interface, 160mm bore, 40mm stroke, force, and G3/4 port.
It features a G3/4 port and delivers 10053N push / 9425N pull at 0.5MPa, 14074N push at 0.7MPa, and a theoretical max of 2050kgf at 1.0MPa. The SAI replacement uses upgraded two Y-shaped piston seals.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX40S replacement — usually within 7-8 hours.