Curtain Machines

Curtain Machines:


Controlled Curtain Systems

When the summer heat is on, a reliable curtain system is essential. Protect the health of your investment with a properly controlled curtain system that maintains precise control of the environment in naturally ventilated buildings. AP’s Curtain Controller and Auto Curtain machines deliver powerful performance and reliable operation.





03Curtain Controller

Gear Up with AP’s most popular curtain machine; the Curtain Controller.

Screw driven automated curtain machine.

Heavy-duty 15, 30 or 60 RPM motor.

Multi-directional, frame mounted header pulleys cocme standard.

Latch out assembly come standard.

Solid construction and rust resistant materials make the sprocket controller a reliable workhorse year after year.

Polyethylene pulley covers provide additional weather protection.



04Auto Curtain

AP’s Auto Curtain operates on a cable system by winching a cable around a grooved drum controlled by a thermostat and timer. A 506S version uses a sprocket and chain drive that wraps the curtain or door prop cords around a building length pipe.




Curtain Controller Components

The Curtain Controller utilizes a threaded block and drive screw directly coupled to a direct drive gear motor.

The drive block assembly features a nylon insert in a heavy-duty powder coated weldment. The removable nylon insert simplifies maintenance, decreases friction and provides wear characteristics superior to conventional brass driveblocks. UHMW polyethylene guide wheels insure smooth travel, proper alignment and stability of the drive block in the machine.

Adjustable latch out switches can be installed in multiple locations to energize and de-energize a variety of equipment.

New one-piece, galvanized lift-off cover makes for ease of service. A plastic water resistant junction box is accessible from the outside of the curtain controller.

Isolated primary and secondary limit switches allow for back-up protection.






06Auto-Air Actuator

The Auto-Air Actuator gives precise control of automated air inlets or chimneys. This powerful unit features 24″ of travel and 700 pound lift capacity. The actuators internal potentiometer communicates with any Airstream control through the PF-6 inlet positioning module or integrated outputs of the Expert controllers. The controllers and Auto-Air Actuator work together to adjust to the correct air inlet position for all stages of ventilation providing optimum environmental control.



Hardware Kits

Hardware kits are available with heavy-duty galcanized steel components including sealed needle bearing pulleys and plated, anti-wrap designed fasteners for ease of installation.



Optional Potentiometer

Optional shaft-mounted potentiometer provides an accurate and immediate signal to indicate movement and postition of the drive. The potentiometer can be wired to a PF-6 inlet-positioning module to allow precise control of air inlets or curtains based on temperature rather than static pressure.















Back to Environmental Control Systems