This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X85S, 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 SI160X85S
The AirTAC SI160 Standard Cylinder SI160X85S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 85mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X85S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke85 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X85S
- 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 SI160X85S
The AirTAC SI160X85S is a discontinued double-acting ISO 15552 profile cylinder with an 85 mm stroke. Built for heavy-duty tasks, it delivers 10053 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI160X85S, a direct replacement sharing the exact ISO 15552 mounting interface, bore, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The original -S magnet supports CS1-B/DS1-B sensors, while a plain cylinder drifts on air loss—the cushion only decelerates.
Airtac SI160 Standard Cylinder SI160X85S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X85S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X85S |
| Bore size | Ø160 mm |
| Stroke | 85 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 SAI160X85S 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 SAI160X85S 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 SI160X85S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×85 | 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 SI160X85S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping and forming dies requiring massive push force and stable 85 mm movements.
Automotive Welding Jig
Clamps bulky automotive chassis components securely in welding fixtures using robust 160 mm bore power.
Industrial Press Down
Applies steady downward pressure for assembly operations, leveraging the 10053 N thrust at 0.5 MPa.
Replacing the Airtac SI160 Standard Cylinder SI160X85S with the SAI160X85S
To replace the SI160X85S, order the SAI160X85S. Confirm the ISO 15552 mounting interface, the 85 mm stroke, M36x2 rod thread, and G3/4 port. Because this is a high-force 160 mm bore, sizing both ways is critical: dropping to a 125 mm bore reduces force to 6136 N push at 0.5 MPa, while staying at 160 mm but increasing pressure to 0.7 MPa yields 14074 N. The standard -S magnet works with legacy CS1-B/DS1-B switches. Remember, a standard cylinder does not hold load without live air; for fail-safe holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X85S
- ✓ 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 SI160X85S FAQ
Yes, the SI160X85S is discontinued. The direct replacement is the AirTAC SAI160X85S. It shares the identical ISO 15552 mounting interface, 160 mm bore, 85 mm stroke, force, and G3/4 port, fitting directly into existing fixtures.
The SI160X85S operates at 30-500 mm/s. At 0.5 MPa it provides 10053 N push and 9425 pull force. Push force increases to 14074 N at 0.7 MPa and 18095 N at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X85S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X85S replacement — usually within 7-8 hours.