This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X600SH, 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 SI63X600SH
The AirTAC Airtac SI63 Standard Cylinder SI63X600SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X600SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X600SH
- 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 SI63X600SH
The AirTAC SI63X600SH is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 600 mm stroke. Delivering 1559 N push at 0.5 MPa, it features a G3/8 port, M16x1.5 rod thread, and a piston magnet for CS1-B/DS1-B switches. The direct replacement is the SAI63X600SH, matching the exact ISO 15552 mounting interface, force, and stroke.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI lock variants the SI lacked. The -H option specifies a Viton seal for 0-150 C environments.
Airtac SI63 Standard Cylinder SI63X600SH Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X600SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X600SH |
| Bore size | Ø63 mm |
| Stroke | 600 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 SAI63X600SH 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 SAI63X600SH 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 SI63X600SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×600 | 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 SI63X600SH Is Used
Long-Stroke Diversion
Actuates large routing gates on packaging lines, utilizing the 600 mm travel to shift products between parallel conveyors smoothly.
High-Temp Forming Ejector
Pushes molded components out of heated zones using the Viton -H seal, enduring 150 C ambient temperatures without degrading.
Replacing the Airtac SI63 Standard Cylinder SI63X600SH with the SAI63X600SH
To replace the SI63X600SH, order the SAI63X600SH. It drops into existing fixtures via the ISO 15552 mounting interface, matching the 63 mm bore, 600 mm stroke, G3/8 port, and magnet. For sizing, the 63 mm bore yields 1559 N push at 0.5 MPa; dropping to a 50 mm bore gives 982 N, while an 80 mm bore provides 2513 N. At 600 mm stroke, use external guides to prevent rod bending and side loads. This plain cylinder does not hold load on air loss; use an external rod lock or pilot check valve for holding, or select the SAIL/BSAI lock variant. The Viton -H seal handles 0-150 C heat.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X600SH
- ✓ 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 SI63X600SH FAQ
Yes, the SI63X600SH is discontinued. The direct replacement is the SAI63X600SH. It shares the identical ISO 15552 mounting interface, 63 mm bore, 600 mm stroke, force, and G3/8 port, fitting existing fixtures perfectly.
The 63 mm bore features a G3/8 port and provides 1559 N push / 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical max of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X600SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X600SH replacement — usually within 7-8 hours.