This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X220CA, 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 SI63X220CA
The AirTAC SI63 Standard Cylinder SI63X220CA 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 SAI63X220CA, 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 → SAI63X220CA
- 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 SI63X220CA
The AirTAC SI63X220CA is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore, 220 mm stroke, and CA clevis mounting. It delivers a 1559 N push force at 0.5 MPa, uses a G3/8 port, and features a 20 mm carbon steel rod with M16x1.5 threading. Because this legacy unit lacks the -S magnet suffix, it cannot accept a position sensor.
The direct replacement is the current-production SAI63X220CA, which maintains the exact ISO 15552 mounting interface, output force, and cushioning. The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. If high-temperature service is needed, both series support a Viton H seal option up to 150 C.
Airtac SI63 Standard Cylinder SI63X220CA Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X220CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X220CA |
| 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 SAI63X220CA 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 SAI63X220CA 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 SI63X220CA
| 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 SI63X220CA Is Used
Press Clamping
Secures medium-tonnage sheet metal fixtures in automated stamping lines, utilizing the 1559 N push force to hold workpieces firmly during machining operations.
Package Diverting
Actuates routing gates on high-speed packaging conveyors, where the 220 mm stroke provides sufficient travel to redirect heavy cartons between parallel belt lanes.
Pallet Stopping
Deploys heavy-duty end-stops at palletizing stations to halt incoming 79 kg unit loads safely, relying on the adjustable 30 mm air cushions to absorb impact.
Replacing the Airtac SI63 Standard Cylinder SI63X220CA with the SAI63X220CA
To replace the SI63X220CA, order the SAI63X220CA and confirm the CA clevis mount, 63 mm bore, 220 mm stroke, and G3/8 port. Verify your thread standard (PT, G, or NPT) and note that this non-magnetic SKU cannot hold a CS1-B/DS1-B switch. When sizing, a neighboring 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore provides 2513 N, allowing you to step up or down if the 1559 N output is marginal. Since this is a plain double-acting cylinder, it will not hold a load without live air—the cushion only decelerates near stroke end. For load-holding on air loss, use an external pilot check valve, a rod lock, or specify the SAIL or BSAI lock variant. At 220 mm stroke, side-load risks are low, but ensure the CA pin is aligned to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X220CA
- ✓ 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 SI63X220CA FAQ
Yes, the SI63X220CA is discontinued. The direct replacement is the AirTAC SAI63X220CA. It is dimensionally interchangeable per ISO 15552, retaining the identical CA clevis mounting, 63 mm bore, 220 mm stroke, and G3/8 port size for a seamless fixture swap.
This 63 mm bore double-acting cylinder features a G3/8 air port and generates a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. At 0.7 MPa the push force is 2182 N, reaching 2805 N at 0.9 MPa, with a theoretical maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X220CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X220CA replacement — usually within 7-8 hours.