This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X336SFB, 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 SI160X336SFB
The AirTAC SI160 Standard Cylinder SI160X336SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 336mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X336SFB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke336 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X336SFB
- 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 SI160X336SFB
The AirTAC SI160X336SFB is a discontinued double-acting ISO 15552 profile cylinder. Delivering 10053 N push force at 0.5 MPa through a G3/4 port, it is replaced by the SAI160X336SFB. This direct upgrade shares the exact bore, stroke, force, and FB flange mounting interface. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also adds lock and valve variants the SI lacked.
The original SI magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. High-temperature Viton H seals extend operation to 150 C.
Airtac SI160 Standard Cylinder SI160X336SFB Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X336SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X336SFB |
| Bore size | Ø160 mm |
| Stroke | 336 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 SAI160X336SFB 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 SAI160X336SFB 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 SI160X336SFB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×336 | 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 SI160X336SFB Is Used
Heavy Press Systems
Drives large platens and press fixtures where the 10053 N push force at 0.5 MPa is required for forming or stamping operations.
Large Clamp Fixtures
Secures oversized components during machining using the FB flange mount to handle substantial clamping forces rigidly.
Replacing the Airtac SI160 Standard Cylinder SI160X336SFB with the SAI160X336SFB
To replace the SI160X336SFB, order the SAI160X336SFB. Verify the ISO 15552 interface, 160 mm bore, 336 mm stroke, G3/4 port, and FB flange mounting. The S magnet enables position sensing. If you need higher force, the 200 mm bore offers 15708 N push at 0.5 MPa; for less, the 125 mm bore provides 6136 N. Because the 336 mm stroke creates leverage, use external guides to prevent rod bending and side loads. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X336SFB
- ✓ 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 SI160X336SFB FAQ
Yes, the SI160X336SFB is discontinued. The direct replacement is the SAI160X336SFB. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 336 mm stroke, FB flange mount, and G3/4 port.
It features a G3/4 port and a 40 mm rod. Force output is 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 max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X336SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X336SFB replacement — usually within 7-8 hours.