Hooded Pad Arm Swing Operator
By Huu Khanh Nguyen · Updated October 29, 2026 · doorking, folding-arm, swing-operator, pad-mount, hooded, articulated-arm
A swing gate operator in a tall hooded steel frame that stands on a concrete pad beside the gate and swings the leaf with a two-piece folding arm on top.
Parameters
| Name | Default | Unit |
|---|---|---|
| Leaf angle | 0 | ° |
| Opening angle | 90 | ° |
| Hinge depth in the post | 0 | mm |
| Mounting height | 0 | mm |
| Sliding travel | 0 | mm |
| Leaf length | 2000 | mm |
| Leaf weight | 200 | |
| Handing | left | |
| Number of leaves | 1 | |
| Post width | 200 | mm |
| Leaf guidance | ground | |
| Crank arm length | 1168.4 * Math.sin(openingAngle * Math.PI / 360) | mm |
| Connecting arm length | Math.hypot(317.5 + 1168.4, 1473.2) - crankLength | mm |
| Bracket pin x | (1168.4) * Math.cos(leafAngle * Math.PI / 180) - (0) * Math.sin(leafAngle * Math.PI / 180) | mm |
| Bracket pin y | (1168.4) * Math.sin(leafAngle * Math.PI / 180) + (0) * Math.cos(leafAngle * Math.PI / 180) | mm |
| Crank arm angle | Math.atan2(eyeY - (1473.2), eyeX - (-317.5)) * 180 / Math.PI + -1 * Math.acos(Math.max(-1, Math.min(1, ((crankLength) * (crankLength) + Math.hypot(eyeX - (-317.5), eyeY - (1473.2)) * Math.hypot(eyeX - (-317.5), eyeY - (1473.2)) - (connectingLength) * (connectingLength)) / (2 * (crankLength) * Math.hypot(eyeX - (-317.5), eyeY - (1473.2)))))) * 180 / Math.PI | ° |
| Elbow pin x | (-317.5) + (crankLength) * Math.cos(armAngle * Math.PI / 180) | mm |
| Elbow pin y | (1473.2) + (crankLength) * Math.sin(armAngle * Math.PI / 180) | mm |
| Finish | white |