This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X450, 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 SID63X450
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X450 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 SAID63X450, 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 → SAID63X450
- 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 SID63X450
The AirTAC SID63X450 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, so push and pull force are equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This model is discontinued; the direct replacement is the SAID63X450, retaining the 63mm bore, 450mm stroke, G3/8 port, and ISO 15552 mounting interface. The SAI family uses an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life.
The dual-rod design prevents rotation and lets the back rod carry a sensor cam or drive a second tool. With no -S suffix, this SKU lacks a magnet and cannot take a magnetic switch. A plain cylinder does not hold loads on air loss; the 30mm adjustable cushions only decelerate near stroke end. For held loads use an external rod lock or the SAIL/BSAI lock variants.
Airtac SID Series Double-Rod Cylinder SID63X450 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X450 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X450 |
| 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 SAID63X450 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 SAID63X450 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 SID63X450
| 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 SID63X450 Is Used
Dual-Station Transfer
Drives two opposing conveyor gates simultaneously with equal both-ways force, preventing workpiece rotation during high-speed 30-800 mm/s transfers.
Symmetric Machining Clamp
Clamps parts from both faces using the 1402 N @0.5 MPa force, where the exiting back rod acts as a mechanical stop for repeatable 450mm positioning.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X450 with the SAID63X450
To replace the discontinued SID63X450, use the SAID63X450 direct, matching the 63mm bore, 450mm stroke, M16x1.5 rod thread, G3/8 port, and ISO 15552 mounting. Size both ways by checking equal force: the 63mm bore delivers 1402 N @0.5 MPa, sitting between the 50mm (825 N) and 80mm (2268 N) bores. A double rod is right when you need anti-rotation, a back-rod sensor cam, or two-tool drive. Reuse FA, LB, or TC mounts. For the 450mm stroke, use external guides to prevent rod bending under side loads. This non-magnetic SKU cannot take switches; for sensing use legacy CS1-B/DS1-B on a magnetized version.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X450
- ✓ 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 SID63X450 FAQ
Yes, the SID63X450 is discontinued. The direct replacement is the SAID63X450. It shares the same ISO 15552 mounting interface, 63mm bore, 450mm stroke, G3/8 port, and equal both-ways force. The SAI family also adds SAIF and BSAI variants the SI line lacked.
Force is equal both ways at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port is G3/8, the rod is Ø20mm with an M16x1.5 thread, and it has 30mm adjustable cushions. It cannot hold loads without live air.
Related AirTAC SAI Cylinders
Request a Quote for the SAID63X450
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X450 replacement — usually within 7-8 hours.