This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X450FA, 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 SI160X450FA
The AirTAC Airtac SI160 Standard Cylinder SI160X450FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 450mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X450FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X450FA
- 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 SI160X450FA
The AirTAC SI160X450FA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 450 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 port. The direct replacement is the SAI160X450FA, which shares the exact FA flange mounting, bore, stroke, and output force for seamless fixture integration.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and cannot accept CS1-B/DS1-B sensors. For high-heat environments, Viton H seals raise the operating range to 0-150 C.
Airtac SI160 Standard Cylinder SI160X450FA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X450FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X450FA |
| Bore size | Ø160 mm |
| Stroke | 450 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 SAI160X450FA 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 SAI160X450FA 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 SI160X450FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SI160X450FA Is Used
Heavy Press Forming
Applies up to 14074 N at 0.7 MPa for stamping and forming dense materials, utilizing the 50 mm adjustable cushion to absorb high impact energy at stroke end.
Pallet Lift Stations
Drives heavy pallet lifts where the 160 mm bore provides the necessary push force, requiring external linear guides to manage the 450 mm stroke side loads.
Large Mold Clamping
Secures substantial injection molds via the FA flange mount, delivering stable holding power while requiring a pilot check valve to prevent drift during air loss.
Replacing the Airtac SI160 Standard Cylinder SI160X450FA with the SAI160X450FA
To replace the SI160X450FA, order the SAI160X450FA ensuring the ISO 15552 FA flange interface, 450 mm stroke, and G3/4 port match your manifold. Sizing both ways: if 10053 N at 0.5 MPa is insufficient, the neighboring 200 mm bore offers higher thrust; if oversized, a 125 mm bore provides 6136 N. This non-magnet SKU cannot host position sensors. Because the 450 mm stroke creates leverage, use external guides to prevent rod-bending side loads. A standard cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X450FA
- ✓ 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 SI160X450FA FAQ
Yes, the SI160X450FA is discontinued. The direct replacement is the SAI160X450FA. It is dimensionally interchangeable per ISO 15552, maintaining the same 160 mm bore, 450 mm stroke, FA flange mount, G3/4 port, and output force.
At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical max is 2050 kgf at 1.0 MPa. It operates at 30-500 mm/s, uses a G3/4 port, and has a 50 mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X450FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X450FA replacement — usually within 7-8 hours.