This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X450S, 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 SID Series Double-Rod Cylinder SID63X450S
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X450S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 450mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X450S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID63X450S
- 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 SID Series Double-Rod Cylinder SID63X450S
The AirTAC SID63X450S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This 63 mm bore, 450 mm stroke model is discontinued. The direct replacement is the SAID63X450S, reusing the same G3/8 port, M16x1.5 rod thread, and mounting interface. The SAI upgrade features a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, the second rod provides anti-rotation stability and can drive two tools or carry a sensor cam. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads on air loss; the cushion only decelerates. For held loads, use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID63X450S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X450S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X450S |
| Bore size | Ø63 mm |
| Stroke | 450 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 SAID63X450S 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 SAID63X450S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID63X450S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×450 | 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 SID Series Double-Rod Cylinder SID63X450S Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously with equal 1962 N @0.7 MPa force on both strokes, ensuring balanced material removal.
Anti-Rotation Transfer Unit
Uses the dual-rod architecture to prevent mechanical twist during heavy workpiece transfers, maintaining strict alignment without external guides.
Symmetric Sorting Gate
Actuates a bi-directional sorting diverter where the extended rod end carries a sensor cam, tracking position from either side.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X450S with the SAID63X450S
To replace the discontinued SID63X450S, install the direct replacement SAID63X450S, which matches the ISO 15552 mounting interface, 450 mm stroke, and G3/8 port without mechanical changes. Size both ways by checking the equal force: this 63 mm bore delivers 1402 N @0.5 MPa, sitting between the 50 mm (825 N) and 80 mm (2268 N) bores. A double-rod design is correct when you need anti-rotation resistance or must drive two mechanisms simultaneously. Mounting options include Basic, FA, LB, and TC. The -S suffix provides a piston magnet for position sensing. For this 450 mm stroke, add external guides to prevent rod bending under side loads. Note that air cushions only decelerate; they do not hold loads without live air.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X450S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID63X450S FAQ
Yes, the SID63X450S is discontinued. The direct replacement is the SAID63X450S. It shares the same ISO 15552 interface, 63 mm bore, 450 mm stroke, G3/8 port, and equal both-ways force, while adding an upgraded two Y-shaped one-way piston seal for longer life.
Because it is a double-rod cylinder, force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port is G3/8, the rod thread is M16x1.5, and it has 30 mm adjustable cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID63X450S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X450S replacement — usually within 7-8 hours.