This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX65S, 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 SI160AX65S
The AirTAC Airtac SI160 Standard Cylinder SI160AX65S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 65mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX65S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX65S
- 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 SI160AX65S
The AirTAC SI160AX65S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 65 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI160AX65S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories, fitting existing fixtures perfectly.
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 SI160AX65S variant uses an SUS420J2 stainless steel rod (-A) for corrosion resistance and a piston magnet (-S) for CS1-B/DS1-B switches. Note the SAI family adds SAIL, SAIF and BSAI lock variants the SI lacked.
Airtac SI160 Standard Cylinder SI160AX65S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX65S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX65S |
| Bore size | Ø160 mm |
| Stroke | 65 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 SAI160AX65S 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 SAI160AX65S 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 SI160AX65S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×65 | 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 SI160AX65S Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large metal castings during machining operations.
Injection Mould Eject
Provides robust 9425 N pull force at 0.5 MPa to extract heavy industrial moulded components.
Replacing the Airtac SI160 Standard Cylinder SI160AX65S with the SAI160AX65S
To replace the SI160AX65S, order the SAI160AX65S. Confirm the ISO 15552 mounting interface, 160 mm bore, 65 mm stroke, G3/4 port (PT/G/NPT thread options), and mounting accessory. The -A denotes the SUS420J2 stainless rod and -S the magnet for CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. Sizing both ways: this bore yields 10053 N push at 0.5 MPa, while the neighbouring 200 mm bore offers 15708 N. A plain cylinder drifts on air loss as cushions only decelerate; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Stroke is under 300 mm so rod bending is minimal, but guide side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX65S
- ✓ 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 SI160AX65S FAQ
Yes, the SI160AX65S is discontinued. The direct replacement is the SAI160AX65S, which shares the identical ISO 15552 mounting interface, 160 mm bore, 65 mm stroke, output force, G3/4 port and accessories.
It features a G3/4 port and 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX65S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX65S replacement — usually within 7-8 hours.