This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X200H, 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 SI63X200H
The AirTAC Airtac SI63 Standard Cylinder SI63X200H 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 SAI63X200H, 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 → SAI63X200H
- 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 SI63X200H
The AirTAC SI63X200H is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 200mm stroke. Featuring a Viton H high-temperature seal (0 to 150 C) and a G3/8 port, it delivers 1559 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI63X200H, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet and cannot accept position sensors, though legacy SI sensors were CS1-B/DS1-B.
Airtac SI63 Standard Cylinder SI63X200H Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X200H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X200H |
| 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 SAI63X200H 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 SAI63X200H 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 SI63X200H
| 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 SI63X200H Is Used
High-Temperature Ejection
Ideal for pushing parts out of hot molds or ovens up to 150 C, utilizing the Viton H seal and 1559 N thrust at 0.5 MPa.
Heavy Clamping Fixtures
Provides robust 63mm bore clamping force on machining lines, dropping directly into existing ISO 15552 profile mounts.
Industrial Diverting
Handles mid-weight product diverting on assembly lines where a 200mm stroke and G3/8 air supply are standard.
Replacing the Airtac SI63 Standard Cylinder SI63X200H with the SAI63X200H
To replace the discontinued SI63X200H, order the SAI63X200H. Verify your existing fixture's ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 200mm stroke, and the G3/8 port. Because this SKU has no magnet (-S), it cannot support sensors; if sensing is needed, switch to an SAI63X200HS. The Viton H seal is required for high-temperature environments up to 150 C. For sizing, a 50mm bore offers 982 N push at 0.5 MPa, while an 80mm bore provides 2513 N. Remember, a standard cylinder does not hold load without live air; the cushion only decelerates. For load holding on air loss, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X200H
- ✓ 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 SI63X200H FAQ
Yes, the SI63X200H is discontinued. The direct replacement is the SAI63X200H. It shares the identical ISO 15552 mounting interface, 63mm bore, 200mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
This 63mm bore cylinder has a G3/8 air port. The thrust 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 force of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X200H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X200H replacement — usually within 7-8 hours.