This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X120SFB, 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 SI160X120SFB
The AirTAC SI160 Standard Cylinder SI160X120SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 120mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X120SFB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke120 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X120SFB
- 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 SI160X120SFB
The AirTAC SI160X120SFB is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 120 mm stroke. It delivers a push force of 10053 N at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160X120SFB, a direct upgrade retaining the exact ISO 15552 mounting interface, FB flange, and M36x2 rod thread.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S magnet works with legacy CS1-B/DS1-B sensors, while Viton H seals raise operating temps to 150 C.
Airtac SI160 Standard Cylinder SI160X120SFB Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X120SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X120SFB |
| Bore size | Ø160 mm |
| Stroke | 120 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 SAI160X120SFB 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 SAI160X120SFB 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 SI160X120SFB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×120 | 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 SI160X120SFB Is Used
Heavy Press Operations
Drives high-tonnage press and stamping fixtures requiring up to 14074 N thrust at 0.7 MPa with stable FB flange mounting.
Large Mold Handling
Actuates heavy industrial molds and platens, utilizing the 50 mm adjustable air cushions to decelerate massive payloads smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160X120SFB with the SAI160X120SFB
To replace the SI160X120SFB, order the SAI160X120SFB. Confirm the ISO 15552 interface, 160 mm bore, 120 mm stroke, G3/4 port (PT/G/NPT thread), FB flange mounting, and the -S magnet. Sizing both ways: a 200 mm bore offers 15708 N push at 0.5 MPa, while a 125 mm bore provides 6136 N. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF valve variant for smaller bores.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X120SFB
- ✓ 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 SI160X120SFB FAQ
Yes, the SI160X120SFB is discontinued. The direct replacement is the SAI160X120SFB. It features the same ISO 15552 mounting interface, 160 mm bore, 120 mm stroke, force, G3/4 port, and FB flange, fitting existing fixtures perfectly.
The G3/4 port feeds a 40 mm rod. Forces are: push 10053 N and pull 9425 N at 0.5 MPa; push 14074 N at 0.7 MPa; push 18095 N at 0.9 MPa; with a theoretical max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X120SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X120SFB replacement — usually within 7-8 hours.