This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX200H, 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 SI63BX200H
The AirTAC SI63 Standard Cylinder SI63BX200H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX200H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX200H
- 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 SI63BX200H
The AirTAC SI63BX200H is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 200mm stroke. It features a SUS304 stainless steel rod (-B) and Viton H high-temperature seals (-H) rated for 0 to 150 C. Delivering 1559 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI63BX200H.
The SAI63BX200H is a direct replacement, matching the ISO 15552 mounting interface, bore, stroke, force, and port exactly. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Note this SKU lacks a magnet, so it cannot take a sensor.
Airtac SI63 Standard Cylinder SI63BX200H Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX200H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX200H |
| Bore size | Ø63 mm |
| Stroke | 200 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 SAI63BX200H 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 SAI63BX200H 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 SI63BX200H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×200 | 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 SI63BX200H Is Used
High-Temp Forming Press
Ideal for actuating small presses or degating molds in heated zones up to 150 C, leveraging the Viton H seals and SUS304 rod for thermal and corrosion resistance.
Heavy Part Diversion
Provides robust 1559 N push force at 0.5 MPa to deflect heavy metal or composite parts on a production line without requiring maximum system pressure.
Pallet Lift Gates
Suitable for raising and lowering 79 kg vertical lift gates in washdown or chemically exposed logistics environments where the stainless rod excels.
Replacing the Airtac SI63 Standard Cylinder SI63BX200H with the SAI63BX200H
To replace the discontinued SI63BX200H, order the SAI63BX200H. Confirm the ISO 15552 mounting interface, 63mm bore, 200mm stroke, G3/8 port (PT/G/NPT thread options), and your specific mounting accessory (LB, FA, TC, etc.). Because this SKU has no -S magnet, it cannot accept a CS1-B or DS1-B sensor; if position detection is needed, select an SAI equivalent with the magnet option. Sizing both ways: a 50mm bore yields 982 N push at 0.5 MPa, while an 80mm bore yields 2513 N. For load holding, note that a plain cylinder drifts on air loss—the cushion only decelerates. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The 200mm stroke is within standard limits, but always guide the rod to prevent side-load bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX200H
- ✓ 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 SI63BX200H FAQ
Yes, the SI63BX200H is discontinued. The direct replacement is the SAI63BX200H. It shares the same ISO 15552 mounting interface, 63mm bore, 200mm stroke, 1559 N force, and G3/8 port, fitting existing fixtures perfectly.
This 63mm bore cylinder uses a G3/8 port. The force ratings are: 1559 N push and 1402 N pull at 0.5 MPa; 2182 N push at 0.7 MPa; 2805 N push at 0.9 MPa; and a theoretical maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63BX200H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX200H replacement — usually within 7-8 hours.