This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X830S, 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 SI63X830S
The AirTAC Airtac SI63 Standard Cylinder SI63X830S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 830mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X830S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke830 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X830S
- 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 SI63X830S
The AirTAC SI63X830S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 830 mm stroke. Generating 1559 N push at 0.5 MPa through its G3/8 port, it is replaced by the SAI63X830S. This direct successor shares the exact ISO 15552 mounting interface, bore, stroke, output force, and accessories.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X830S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X830S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X830S |
| Bore size | Ø63 mm |
| Stroke | 830 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 SAI63X830S 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 SAI63X830S 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 SI63X830S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×830 | 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 SI63X830S Is Used
Long-Stroke Diversion
Pushes packages across a 830 mm transfer gap with 1559 N force at 0.5 MPa, requiring external guides to prevent rod bending.
Multi-Stage Ejection
Cycles at 30-800 mm/s to eject machined parts from an ISO 15552 fixture, dropping into the exact mounting footprint.
Replacing the Airtac SI63 Standard Cylinder SI63X830S with the SAI63X830S
To replace the SI63X830S, order the SAI63X830S. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the G3/8 port, and the -S magnet for CS1-B/DS1-B switches. The 830 mm stroke requires external guides to prevent rod bending and side-load wear. Sizing both ways: a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. Note that 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 → SAI63X830S
- ✓ 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 SI63X830S FAQ
Yes, the SI63X830S is discontinued. The direct replacement is the SAI63X830S. It is dimensionally interchangeable per ISO 15552, matching the 63 mm bore, 830 mm stroke, G3/8 port, and mounting accessories, so it drops 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 max of 318 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X830S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X830S replacement — usually within 7-8 hours.