This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X530S, 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 SI63X530S
The AirTAC SI63 Standard Cylinder SI63X530S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 530mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X530S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke530 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X530S
- 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 SI63X530S
The AirTAC SI63X530S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 530 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa, operating through a G3/8 port with a 20 mm rod. AirTAC replaced this legacy unit with the SAI63X530S, a direct sharing the exact interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also introduces SAIL and BSAI lock variants the SI lacked. This -S model carries a piston magnet for CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X530S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X530S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X530S |
| Bore size | Ø63 mm |
| Stroke | 530 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 SAI63X530S 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 SAI63X530S 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 SI63X530S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×530 | 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 SI63X530S Is Used
Pallet Diversion
Pushes heavy pallets sideways onto parallel conveyor lines using 1559 N of thrust at 0.5 MPa over a 530 mm travel distance.
Long Stroke Ejection
Ejects machined aluminum profiles from a machining center, relying on the 30 mm adjustable air cushions to decelerate the rod at stroke end.
Replacing the Airtac SI63 Standard Cylinder SI63X530S with the SAI63X530S
To replace the SI63X530S, order the SAI63X530S direct. Confirm the ISO 15552 mounting accessory (LB, FA, CA, TC), the G3/8 port thread (PT/G/NPT), and the -S magnet. Sizing both ways: a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. For the 530 mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, specify the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X530S
- ✓ 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 SI63X530S FAQ
Yes, the SI63X530S is discontinued. The direct replacement is the SAI63X530S. It is dimensionally interchangeable per ISO 15552, retaining the same 63 mm bore, 530 mm stroke, 1559 N force, G3/8 port, and mounting interface.
This double-acting cylinder has a G3/8 air port. The thrust ratings 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 maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X530S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X530S replacement — usually within 7-8 hours.