This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX160, 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 SI63 Standard Cylinder SI63BX160
The AirTAC Airtac SI63 Standard Cylinder SI63BX160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX160, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX160
- 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 SI63 Standard Cylinder SI63BX160
The AirTAC SI63BX160 is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 160 mm stroke. It features a SUS304 stainless steel piston rod for corrosion resistance and delivers 1559 N push force at 0.5 MPa through its G3/8 port. AirTAC replaced this legacy unit with the SAI63BX160, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI replacement introduces an upgraded piston seal utilizing two Y-shaped one-way elements for extended life and lower start-up pressure. Because this specific SI63BX160 SKU lacks a magnet (-S), it cannot accept a position switch.
Airtac SI63 Standard Cylinder SI63BX160 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX160 |
| Bore size | Ø63 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI63BX160 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAI63BX160 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI63 Standard Cylinder SI63BX160
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×160 | 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 SI63 Standard Cylinder SI63BX160 Is Used
Stainless Rod Actuation
Drives mechanisms in washdown or mildly corrosive environments using the SUS304 piston rod to resist degradation.
Mid-Force Product Diversion
Pushes or diverts packages on a line with 1559 N of thrust at 0.5 MPa, handling robust routing tasks.
Material Lift Stops
Acts as a physical stop for pallets or lifts, providing reliable resistance without requiring integrated sensing.
Replacing the Airtac SI63 Standard Cylinder SI63BX160 with the SAI63BX160
To replace the discontinued SI63BX160, order the SAI63BX160. Confirm the ISO 15552 mounting interface, 160 mm stroke, G3/8 port, and your specific mounting accessory (LB, FA, TC, etc.). This SKU has no magnet and cannot support sensing; if you need position detection, select an SAI63BX160S and use current AirTAC switches. Sizing alternatives: a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, consider the SAIL or BSAI lock variants, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX160
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI63 Standard Cylinder SI63BX160 FAQ
Yes, the SI63BX160 is discontinued. The direct replacement is the SAI63BX160. It shares the same ISO 15552 mounting interface, 63 mm bore, 160 mm stroke, G3/8 port, and output force, fitting directly into existing fixtures.
This 63 mm bore cylinder features a G3/8 air port and an M16x1.5 rod thread. It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63BX160
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX160 replacement — usually within 7-8 hours.