This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X66S, 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 SI160X66S
The AirTAC SI160 Standard Cylinder SI160X66S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 66mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X66S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke66 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X66S
- 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 SI160X66S
The AirTAC SI160X66S is a discontinued double-acting ISO 15552 profile cylinder, delivering a thrust of 10053 N at 0.5 MPa through a 160 mm bore and 66 mm stroke. AirTAC replaced this legacy unit with the SAI160X66S. This current-production direct maintains the exact ISO 15552 mounting interface, G3/4 port size, M36x2 rod thread, and output force, fitting existing fixtures seamlessly.
The SAI upgrade introduces a refined piston seal featuring two Y-shaped one-way elements for extended longevity and lower start-up pressure. The SI family lacked integrated lock options, but the SAI line adds SAIL and BSAI clamp-lock variants. Furthermore, this -S SKU includes a piston magnet for legacy CS1-B/DS1-B switches, and seal options like Viton H extend operating temperatures up to 150 C.
Airtac SI160 Standard Cylinder SI160X66S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X66S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X66S |
| Bore size | Ø160 mm |
| Stroke | 66 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 SAI160X66S 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 SAI160X66S 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 SI160X66S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×66 | 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 SI160X66S Is Used
Heavy Stamping Press
Drives large tooling dies with 10053 N thrust at 0.5 MPa, utilizing the 66 mm stroke for high-impact metalforming tasks.
Automated Assembly Line
Shifts substantial structural members along an ISO 15552 fixture, relying on the G3/4 port for rapid high-volume actuation.
Replacing the Airtac SI160 Standard Cylinder SI160X66S with the SAI160X66S
To replace the discontinued SI160X66S, order the SAI160X66S by confirming the ISO 15552 mounting interface, 160 mm bore, 66 mm stroke, G3/4 port, and the -S magnet requirement. When sizing, evaluate neighboring bores: the 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore provides 15708 N. A plain SAI cylinder does not hold load on air loss; the 50 mm adjustable air cushions only decelerate near stroke ends. For secure load holding, specify the SAIL or BSAI lock variant, or utilize an external pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X66S
- ✓ 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 SI160X66S FAQ
Yes, the SI160X66S is discontinued. The direct replacement is the SAI160X66S, which matches the 160 mm bore, 66 mm stroke, ISO 15552 mounting interface, G3/4 port, and output force for a seamless fixture upgrade.
The 160 mm bore features a G3/4 air port and an M36x2 rod thread. It 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 theoretical maximum force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X66S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X66S replacement — usually within 7-8 hours.