This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X450, 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 SID100X450
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X450 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 450mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X450, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X450
- 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 SID100X450
The AirTAC SID100X450 is a double-acting, double-rod ISO 15552 cylinder featuring a 100mm bore and 450mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal at 3681N @0.5MPa, 5153N @0.7MPa, and 6626N @0.9MPa. This model is discontinued; the direct replacement is the SAID100X450, retaining the G1/2 port, M20x1.5 rod thread, and 3681N equal force. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure.
Because the second rod acts as an anti-rotation guide and can drive a second tool simultaneously, double-rod designs excel in compact synchronous setups. Note this SKU lacks the -S magnet and cannot take a magnetic switch. A plain cylinder does not hold loads on air loss—the 36mm adjustable cushion only decelerates near stroke end—so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID100X450 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X450 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X450 |
| Bore size | Ø100 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID100X450 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAID100X450 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 SID100X450
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | 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 SID100X450 Is Used
Synchronous Tool Driving
Drives two opposing tools simultaneously from a single piston, utilizing the equal both-ways 5153N @0.7MPa force for matched opposing operations without requiring a second cylinder.
Balanced Transfer Diverter
Mounts via TC trunnion to pivot a diverter arm on a conveyor line, using the G1/2 ported 100mm bore to rapidly shift products with equal push and pull rigidity.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X450 with the SAID100X450
To replace the discontinued SID100X450, install the direct replacement SAID100X450, which matches the ISO 15552 mounting interface, 450mm stroke, and G1/2 port. Size both ways by verifying the equal push/pull force (3681N @0.5MPa) handles your load; neighbouring bores like 80mm (2268N) or 125mm (5734N) offer alternatives if margins allow. Choose a double-rod cylinder when you need anti-rotation resistance or must drive two tools from one piston. Reuse FA, LB, or TC mounts directly. For the 450mm stroke, add external guides to prevent rod bending under side loads. Select an -S magnet variant if sensor feedback is required, as this non-magnet SKU cannot accept switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X450
- ✓ 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 SID100X450 FAQ
Yes, the AirTAC SID100X450 is discontinued. The direct replacement is the SAID100X450. It shares the identical ISO 15552 interface, 100mm bore, 450mm stroke, G1/2 port, and equal both-ways force. The SAI family also adds upgraded two Y-shaped one-way piston seals for longer life.
Force is equal both ways: 3681N @0.5MPa, 5153N @0.7MPa, and 6626N @0.9MPa. The bore is 100mm with a G1/2 air port, M20x1.5 rod thread, and 36mm adjustable cushion. Speed is 30-800mm/s. It lacks a magnet for sensors, and the cushion only decelerates—it will not hold loads without air.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X450
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