This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X430, 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 SI63X430
The AirTAC Airtac SI63 Standard Cylinder SI63X430 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 430mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X430, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke430 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X430
- 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 SI63X430
The AirTAC SI63X430 is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 430 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI63X430 direct replacement, which matches the exact mounting interface, bore, output force, and cushioning.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. This specific SKU lacks a magnet (-S) and cannot accept CS1-B/DS1-B sensors. For high-temperature needs, Viton H seals extend the range to 150 C.
Airtac SI63 Standard Cylinder SI63X430 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X430 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X430 |
| Bore size | Ø63 mm |
| Stroke | 430 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 SAI63X430 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 SAI63X430 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 SI63X430
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×430 | 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 SI63X430 Is Used
Long-Stroke Diversion
Pushes packages across a 430 mm transfer lane with 1559 N force, relying on adjustable end cushions to decelerate the payload smoothly.
Vertical Pressing
Provides up to 79 kg of safe vertical lift at 0.5 MPa for applying labels or seating components, requiring external guides for the long rod.
Pallet Handling
Actuates 63 mm bore gating or lifting mechanisms on packaging lines, easily swapping into existing ISO 15552 fixtures via the SAI replacement.
Replacing the Airtac SI63 Standard Cylinder SI63X430 with the SAI63X430
To replace the SI63X430, order the SAI63X430. It is dimensionally interchangeable per ISO 15552, retaining the 63 mm bore, 430 mm stroke, M16x1.5 rod thread, and G3/8 port. Confirm your mounting accessory (LB, FA, TC, etc.) and thread standard (PT, G, NPT). Because this SKU has no magnet, it cannot host position sensors; if sensing is required, order the SAI63X430S. At 0.5 MPa, the 63 mm bore yields 1559 N push; if undersized, the 80 mm bore offers 2513 N. For the 430 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X430
- ✓ 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 SI63X430 FAQ
Yes, the SI63X430 is discontinued. The direct replacement is the SAI63X430. It features the same ISO 15552 mounting interface, 63 mm bore, 430 mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
The 63 mm bore uses a G3/8 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.
Request a Quote for the SAI63X430
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X430 replacement — usually within 7-8 hours.