This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X200CA, 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 SI63X200CA
The AirTAC Airtac SI63 Standard Cylinder SI63X200CA 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 SAI63X200CA, 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 → SAI63X200CA
- 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 SI63X200CA
The AirTAC SI63X200CA is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore, 200 mm stroke, and CA clevis mounting. Delivering 1559 N push force at 0.5 MPa through a G3/8 port, it is replaced by the SAI63X200CA. This direct SAI upgrade maintains the exact ISO 15552 mounting interface, bore, stroke, and force, fitting existing fixtures perfectly.
The SAI successor features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Since this specific SI SKU lacks the -S magnet, it cannot accept a position sensor. For load holding, note that standard cylinders drift on air loss; use an external pilot check valve or the SAIL/BSAI lock variants.
Airtac SI63 Standard Cylinder SI63X200CA Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X200CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X200CA |
| 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 SAI63X200CA 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 SAI63X200CA 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 SI63X200CA
| 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 SI63X200CA Is Used
Clamp Actuation
Provides reliable 1559 N clamping force for machining fixtures, utilizing the CA clevis to accommodate slight pivot alignment during the 200 mm travel.
Package Diversion
Drives a 200 mm stroke diverter arm to route heavy goods on packaging lines, with the 63 mm bore delivering sufficient push without overwhelming the mechanism.
Replacing the Airtac SI63 Standard Cylinder SI63X200CA with the SAI63X200CA
To replace the discontinued SI63X200CA, order the SAI63X200CA. Confirm the ISO 15552 CA clevis interface, 63 mm bore, 200 mm stroke, and G3/8 port. Because this SKU lacks a magnet, it cannot support switches; if sensing is needed, specify an SAI63X200CAS. For load holding on air loss, a plain cylinder drifts because the air cushion only decelerates near stroke end; add an external rod lock or pilot check valve, or select the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X200CA
- ✓ 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 SI63X200CA FAQ
Yes, the SI63X200CA is discontinued. The direct replacement is the SAI63X200CA. It shares the identical ISO 15552 mounting interface, 63 mm bore, 200 mm stroke, G3/8 port, and CA clevis, fitting directly into existing setups.
This 63 mm bore double-acting cylinder uses a G3/8 air port. It generates 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 SAI63X200CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X200CA replacement — usually within 7-8 hours.