This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X282S, 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 SI63X282S
The AirTAC Airtac SI63 Standard Cylinder SI63X282S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 282mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X282S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke282 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X282S
- 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 SI63X282S
The AirTAC SI63X282S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 282 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa through a G3/8 port. The direct is the SAI63X282S, retaining the exact interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked. This SI-SKU has a magnet for CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X282S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X282S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X282S |
| Bore size | Ø63 mm |
| Stroke | 282 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 SAI63X282S 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 SAI63X282S 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 SI63X282S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×282 | 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 SI63X282S Is Used
Mid-Tonnage Pressing
Applies the 1559 N push force at 0.5 MPa for seating bearings or light stamping tasks in automated machinery.
Package Diversion
Uses the 282 mm stroke to push cartons off a main belt at high speed, leveraging the 30-800 mm/s range.
Replacing the Airtac SI63 Standard Cylinder SI63X282S with the SAI63X282S
To replace this SI63X282S, order the SAI63X282S. Confirm the ISO 15552 mounting interface, 63 mm bore, 282 mm stroke, G3/8 port (PT/G/NPT), and the -S magnet. This 282 mm stroke is nonstandard; at lengths over 300 mm, guide rods prevent side-load rod bending. Sizing both ways: a 50 mm bore yields 982 N push, while an 80 mm bore yields 2513 N. A plain cylinder drifts on air loss; for load holding use the SAIL or BSAI lock variant, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X282S
- ✓ 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 SI63X282S FAQ
Yes, the SI63X282S is discontinued. The direct replacement is the SAI63X282S. It is dimensionally interchangeable per ISO 15552, keeping the same 63 mm bore, 282 mm stroke, G3/8 port, and mounting fixtures.
The G3/8 port bore delivers a push of 1559 N and pull of 1402 N at 0.5 MPa, 2182 N push at 0.7 MPa, and 2805 N push at 0.9 MPa. The theoretical max force is 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X282S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X282S replacement — usually within 7-8 hours.