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The main types include electric stage curtains and manual stage curtains. By movement type, they can be categorized into lifting, opening-and-closing, rotating, and folding styles. Electric stage curtains are widely used, while opening-and-closing stage curtains are commonly employed on the main stage of theaters.
It features high automation, smooth operation, flexible speed regulation, and convenient operation, and supports remote control, making it ideal for scenarios requiring frequent start-and-stop operations.
Primarily used in venues such as theaters (for opera and drama performances), concert halls (for concerts), multi-purpose halls (for meetings and celebrations), and cinemas (for film screenings), these are employed to separate the stage from the audience area or to create an immersive performance atmosphere.
It typically consists of a drive system (motor, reducer), a transmission mechanism (guides, chains/belts), a curtain assembly (curtain, hooks), a control system (operating console, remote control), and safety devices (limit switches, overload protection).
These include travel limiters (which control the opening, closing, and lifting ranges), overload protectors (to prevent motor overloading), emergency stop buttons (for immediate shutdown in case of emergencies), and anti-fall devices (for lift-type stage curtains), all of which ensure operational safety.
Electric stage curtains feature a high degree of automation and smooth operation, but they come with a higher cost and are best suited for large venues. Manual stage curtains, on the other hand, have a simple structure, low cost, and rely on manual operation, making them ideal for smaller venues or settings with limited budgets.
The drive system (motor operating sound, reducer lubrication) should be inspected regularly; the guide rails should be cleaned (to remove dust and debris); the curtain’s wear condition (hooks, seams) should be checked; and safety devices (limit switches, emergency stop buttons) should be tested.
It mainly depends on the drive motor power, the type of transmission mechanism (chain or belt), the weight of the screen, and the control method. Different scenarios have different speed requirements.
The opening-and-closing type is suitable for theater main curtains (which need to open and close horizontally to reveal the stage) and multi-purpose halls (which can switch between meetings and performances). The lifting type is ideal for side curtains (to cover side wings) and cinemas (to conceal the screen above), and its vertical movement saves horizontal space.
The main types of drive mechanisms include motor-driven (electric, further divided into DC and AC motors) and manually driven (powered by human effort, using a joystick or hand crank). Some large-scale equipment employs hydraulic drives (offering smooth operation and strong load-bearing capacity).
Used to separate the stage from the audience area (blocking the view before the performance begins), create a performance atmosphere (coordinating with lighting changes), transition between scenes (blocking the view during intermission when sets are changed), and enhance the sense of ceremony (serving as a signature gesture at the start or end of the show).
Responsible for lubricating transmission components (guideways, chains, bearings) to reduce friction and wear, lower operational noise, prevent component corrosion, and ensure smooth motion.
The selection should be determined comprehensively based on factors such as the venue size (stage width/height), frequency of use (electrically operated for high-frequency use), functional requirements (opening/closing or lifting), budget range, and compatibility with other equipment.
Primarily used to precisely control the end positions of mechanical movements, this device triggers switch operations by means of the interaction between a cam and a contact, thereby cutting off or connecting the circuit. This prevents equipment from overtraveling and ensures operational safety and precision.
According to the cam structure, they can be classified into single-cam and multi-cam combination types. According to the contact type, they can be categorized as normally open, normally closed, and changeover types. Based on the installation method, they are available in shaft-mounted and flange-mounted versions, suitable for different mechanical structures and control requirements.
The cam rotates driven by a mechanical shaft. When the cam reaches a preset angle, it either presses or releases the contact mechanism, causing the contacts to open or close and thereby sending an electrical signal to control the start and stop of the device, thus achieving precise limit positioning of the stroke.
Cam limit switches are triggered by mechanical contact and have strong resistance to dust and oil contamination; their accuracy depends on the precision of mechanical machining. Photoelectric limit switches are non-contact, offering fast response times but being susceptible to interference from ambient light—making them suitable for clean, unobstructed environments.
It typically consists of a cam assembly (cam disc, shaft), a contact mechanism (moving contact, stationary contact), an enclosure (protective housing), an adjustment device (angle-adjusting knob), and wiring terminals. These components work together to achieve the limiting function.
The main factors include cam machining accuracy (contour error), shaft system clearance (assembly clearance), contact actuation stroke (trigger distance), environmental vibration (leading to positional deviation), and the stability of the adjustment mechanism (angular looseness).
During installation, ensure that the camshaft is concentric with the equipment shaft and securely fastened (to prevent loosening due to vibration). The orientation of the contacts must match the rotation direction of the cam, and wiring connections must be firm (to prevent poor contact). Additionally, leave sufficient adjustment space.
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