This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X220SH, 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 SI63X220SH
The AirTAC SI63 Standard Cylinder SI63X220SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 220mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X220SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X220SH
- 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 SI63X220SH
The AirTAC SI63X220SH is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 220 mm stroke. It delivers 1559 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI63X220SH, a direct upgrade retaining the exact ISO 15552 mounting interface, stroke, force, and port size. Note that 220 mm is a nonstandard stroke length.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This -S/-H configuration includes a piston magnet for legacy CS1-B/DS1-B sensors and a Viton H seal, extending the operating temperature range from -20 to +70 C up to 0-150 C.
Airtac SI63 Standard Cylinder SI63X220SH Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X220SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X220SH |
| Bore size | Ø63 mm |
| Stroke | 220 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 SAI63X220SH 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 SAI63X220SH 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 SI63X220SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×220 | 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 SI63X220SH Is Used
Clamp Actuation
Provides 1559 N of clamping thrust at 0.5 MPa for securing mid-weight machining fixtures.
Package Diversion
Drives 220 mm stroke diverter arms to route goods on packaging lines at up to 800 mm/s.
Replacing the Airtac SI63 Standard Cylinder SI63X220SH with the SAI63X220SH
To replace the SI63X220SH, order the SAI63X220SH. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the G3/8 port, the M16x1.5 rod thread, and the -S/-H options. Because 220 mm is a nonstandard stroke, verify the exact extended length against your fixture. When sizing both ways, a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N; this 63 mm cylinder provides 1559 N push and 1402 N pull at 0.5 MPa, with a theoretical maximum of 318 kgf at 1.0 MPa. For strokes over 300 mm, guide the load to prevent rod bending, but even at 220 mm, avoid side loads. A plain cylinder does not hold load without live air—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL (air-released lock) or BSAI (clamp-lock) variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X220SH
- ✓ 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 SI63X220SH FAQ
Yes, the SI63X220SH is discontinued. The direct replacement is the SAI63X220SH. It is dimensionally interchangeable per ISO 15552, matching the 63 mm bore, 220 mm stroke, G3/8 port, and mounting interface.
The bore is 63 mm with a G3/8 port. Force output is 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. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X220SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X220SH replacement — usually within 7-8 hours.