Chicken Coop Door Opener Calculator

How the vertical chicken coop door works

The actuator body attaches to a rigid support above the doorway, with its rod pointing downward. Its moving end connects to the door. When the rod retracts, it pulls the door upward; when it extends, the door moves downward. There is no pulley ratio or lifting lever, so one inch of actuator movement produces one inch of door travel.

Two side guides keep the panel aligned and carry sideways loads. The actuator should not act as the door guide. Keep its axis parallel to the door's travel and allow the mounting joints to accommodate alignment without bending the rod. Check that the raised panel, actuator body and mounting brackets all have room above the opening.

Measure the door before choosing an actuator

• Door travel: measure the movement from fully closed to the required clear opening. Include any overlap that must move past the doorway.
• Moving weight: include the panel, its moving bracket and every attached part that travels with it. Do not include the fixed coop wall.
• Guide and seal resistance: enter the extra force needed to overcome drag. Measure resistance with the installed guides; do not guess it from the panel's material.
• Mounting space: measure between the fixed and moving mounting pins at both ends of the door's travel. Include bracket geometry and clearance for the motor housing.

If a pull test measures the total upward force, it already includes the door's weight. Subtract that weight before entering the remaining resistance, so it is not counted twice. Check for changes caused by bedding, dirt, moisture or misalignment.

Compare force, stroke and installed length

Raising the door requires the actuator to overcome its moving weight and the resistance of the guides and seals. The calculator compares the resulting demand and required stroke with the selected actuator. A force match alone is not enough: a long actuator can have adequate stroke but still be too long for the mounting space.

Use the shortest stroke that supplies the required opening travel and fits the installation. If a longer stroke is selected, limit its movement so the door does not hit the upper frame or push into the sill. The animation illustrates the travel path, not an assured motor speed or obstruction response. A mechanical match also does not establish that every catalogue actuator works with the pictured controller.

Super Duty actuator and FCB-2 control

The listed Super Duty F-SD-H actuators provide Hall feedback for use with the FCB-2 controller. Connect the motor and feedback wires according to the actual actuator's diagram. With feedback enabled, calibrate the controller, enter the actuator's stroke and set the required open and closed positions.

Complete calibration where the full actuator stroke cannot strike the coop or endanger an animal. Then check the installed stops manually before enabling schedules. Two-wire actuators can use FCB-2 timers, but without feedback the controller cannot provide adjustable position stops. Check voltage and current compatibility separately. Protect the FCB-2 and its connections from weather and washdown; the controller is not waterproof.

Schedule daily opening and closing

FCB-2 Time Mode supports up to five schedules with active-day selection. Each schedule has an extension time and a retraction time. In this overhead mounting arrangement, retraction opens the door and extension closes it.

Example only: set retraction to 06:00 to open at 6 a.m., and extension to 20:00 to close at 8 p.m. Select the intended days and enable that schedule after setting the controller's clock. Choose times for your flock and location; these are not recommended universal poultry hours. Clock schedules do not automatically follow dawn and dusk, so adjust them as daylight changes.

Follow the FCB-2 operating manual. The calculator does not program the controller. Manual movement does not cancel an enabled schedule.

Commission the door with birds kept clear

A timer cannot tell whether a bird is under the closing edge. Guard the side guides and drive, and provide suitable independent obstruction detection and a stop or reversal response before unattended closing. Hall feedback, end-of-stroke switches and an overcurrent fault are not poultry protection. An actuator's available force is not an acceptable closing-force target.

Test the complete installation using safe test objects, never birds. Confirm the opening clears the flock's route, inspect both sides before closing, and provide a practical way to release or open the door during a power or control failure. Disable schedules and isolate power before clearing jams or servicing the mechanism.

Chicken coop door questions

Does the actuator extend to open the door?

Not in this arrangement. The actuator is fixed above the door with its rod downward, so retraction opens it and extension closes it.

Can a longer stroke work?

Yes, if the installed lengths fit and suitable control limits prevent excess travel. Check the door's clearance throughout its movement.

Does a timer detect chickens?

No. A clock schedule starts motion at a set time. It does not detect a bird or provide obstruction protection.