This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X410S, 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 SI63X410S
The AirTAC Airtac SI63 Standard Cylinder SI63X410S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 410mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X410S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke410 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X410S
- 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 SI63X410S
The AirTAC SI63X410S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 410 mm stroke, delivering 1559 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI63X410S, a direct upgrade retaining the exact ISO 15552 mounting interface, G3/8 port, and M16x1.5 rod thread. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life.
The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B sensors, though the SAI replacement family uses current AirTAC switches. For high-temperature environments up to 150 C, Viton H seals are available, and rod material options include SUS420J2 or SUS304.
Airtac SI63 Standard Cylinder SI63X410S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X410S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X410S |
| Bore size | Ø63 mm |
| Stroke | 410 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 SAI63X410S 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 SAI63X410S 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 SI63X410S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×410 | 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 SI63X410S Is Used
Pallet Diverting
Pushes heavy pallets laterally across transfer lines using the 1559 N push force, while the 410 mm stroke clears wide conveyor lanes.
Material Pressing
Applies consistent downward clamping pressure on composite sheets or assemblies, benefiting from the 30 mm adjustable cushions to prevent end-impact.
Replacing the Airtac SI63 Standard Cylinder SI63X410S with the SAI63X410S
To replace the discontinued SI63X410S, order the SAI63X410S direct equivalent, verifying your ISO 15552 mounting accessory (LB, FA, CA, TC, etc.), the G3/8 air port, and the magnet requirement. When sizing, a 50 mm bore offers 982 N push at 0.5 MPa, while an 80 mm bore provides 2513 N; alternatively, increasing pressure to 0.7 MPa on the 63 mm bore yields 2182 N. Because this is a 410 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder does not hold load without live air; the cushion only decelerates. For load holding on air loss, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X410S
- ✓ 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 SI63X410S FAQ
Yes, the SI63X410S is discontinued. The direct replacement is the AirTAC SAI63X410S. It is dimensionally interchangeable per ISO 15552, matching the 63 mm bore, 410 mm stroke, G3/8 port, and mounting interface.
The G3/8 port supplies the 20 mm rod. Forces 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 max of 318 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X410S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X410S replacement — usually within 7-8 hours.