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EVO-TECH
Mastering the Stage, Steadfastly Crafting a Splendid Chapter
Evo-Tech stage machinery: professional performing arts solutions that exceed expectations
Intelligent Theater Solutions
Standard as the foundation, customization as the wing — Evo-Tech, your expert in stage machinery
In the intelligent upgrade of theaters, the stability, precision, and adaptability of stage machinery are crucial. Evo-Tech has been deeply engaged in stage machinery technology, iteratively upgrading its products based on the needs of performance scenarios to provide customers with safe and efficient stage equipment solutions and create value across all scenarios.
Standardization to speed up performances: Evo-Tech’s standardized stage machinery (such as proscenium curtains, fire curtain drive dampers, and winches) has been proven in multiple venues. With a modular architecture and standard interfaces, it allows for rapid selection and deployment based on customers’ core parameters, eliminating lengthy commissioning and enabling quick integration with existing systems to enhance stage operation efficiency.
Customization, born for the stage: In response to the diverse needs of different theaters and performance formats, Evo-Tech engineers conduct on-site surveys and provide one-stop, tailor-made stage machinery solutions—covering equipment structure, drive control, and functional expansion—to precisely address on-site pain points.
Customized Empowerment, Cost Reduction and Efficiency Improvement — Evo-Tech Stage Machinery, Your Master of Theater Operation Cost Optimization
In the wave of high-quality development in the cultural and performing arts industry, “reducing costs and increasing efficiency” is the core demand for theater and venue operations. Evo-Tech’s core stage machinery technology, with its robust structural design, precise operational performance, and flexible scene adaptability, has become the ideal stage equipment solution for numerous theaters and venues to optimize their operational processes and reduce overall operating costs. We are not just providing stage equipment; we are building a scientific system for optimizing theater operating costs for you.
Evo-Tech’s custom design capabilities are the core engine for achieving this goal. By fully leveraging the customization features of stage machinery, we can:
Optimizing space utilization: By tailoring equipment design, travel ranges, and storage solutions to specific venue configurations—such as house dimensions, stage depth, and backstage areas—we enable efficient deployment in compact spaces, maximizing the use of existing facilities and thereby reducing the costs associated with venue renovation and expansion.
Enhancing Performance Efficiency: By precisely aligning equipment operating speeds, positioning accuracy, and interlocking logic with the performance format, program pacing, and scene-transition requirements, we minimize scene-change wait times and operator errors, thereby improving the seamless flow of the show and its overall visual impact.
Enhancing system reliability: Customized equipment design, protection ratings, material selection, and core component configuration are tailored to meet the specific operating conditions of theaters—such as high ambient temperatures, frequent start–stop cycles, and complex interlocking systems—thereby reducing equipment failure rates, routine maintenance costs, and losses due to performance interruptions.
Simplified integration: Provides communication protocols, hardware interfaces, and control solutions that enable seamless interoperability with stage master control systems, security systems, fire alarm and interlock systems, and lighting and audio equipment, thereby reducing system integration complexity as well as secondary development and on-site commissioning costs.
Extend equipment lifecycle: By taking into account future upgrades in performance formats, expansion of venue functions, and evolving requirements for equipment integration, a customized stage machinery system should feature robust scalability, high compatibility, and ample room for functional iteration, thereby minimizing the need for repeated procurement and deployment in the short term and safeguarding long-term equipment investments.
Choosing Evo-Tech customized stage machinery means you’re opting for a higher return on investment, ensuring that every penny spent translates into tangible operational benefits—smooth theater operations and high-quality performances.
Structural Features & Operating Principle
01
Curtain machine
Structural Features
It consists of a variable-frequency motor, reducer, brake, drum, wire rope, pulleys, guide rails, and a synchronous mechanism. The curtain body runs along the guide rails and is equipped with left–right synchronization shafts to ensure smooth and uniform opening and closing. It is also fitted with limit switches, encoders, and an emergency stop device for safe and reliable operation.
Operating Principle
The motor drives the winding drum via a reducer to wind and unwind the steel wire rope, thereby retracting or raising the curtain panel along the guide rails. Variable-frequency control ensures uniform speed and smooth start-up and stop, while an encoder guarantees precise positioning. The brake is normally closed and engages immediately upon power failure to prevent unintended movement of the curtain.
02
Winch
Structural Features
It consists of an electric motor, reducer, brake, drum, wire rope, and pulley block. It is equipped with multiple safety devices, including a load limiter, limit switches, rope-break protection, and safety gears. Its multi-point hoisting synchronous design ensures horizontal lifting and lowering of the load.
Operating Principle
The motor drives the drum to rotate, winding and unwinding the steel wire rope, thereby lifting or lowering the load via pulleys. An encoder provides real-time position feedback, enabling high-precision positioning. The system automatically locks in the event of overload, overtravel, or rope breakage, ensuring the safety of both the equipment and personnel.
03
Fire curtain
Structural Features
It consists of a fire-resistant curtain, a winch-driven mechanism, counterweights, guide rails, damping devices, and sealing structures. The curtain is constructed from fire-resistant steel and provides fire- and heat-insulation performance. It is equipped with manual release, temperature-controlled release, and fire-alarm interlock interfaces.
Operating Principle
Normal state: The winch lifts the curtain to the top and locks it in place.
Emergency Mode: Upon power failure or activation of the fire alarm signal, the brake is released, and the curtain descends rapidly under its own weight.
The descent is decelerated and cushioned by a damping device, ensuring a smooth landing and forming a fire-resistant, airtight barrier. Manual forced descent is also available to meet emergency fire-fighting requirements.
Five Core Performance Analyses
Flexible Interoperability Function
As a core, hallmark feature, this system enables seamless coordination and flexible operation among multiple types of stage machinery—such as proscenium curtains and hoists—allowing for multidimensional motion transitions without complex commissioning. Specific functions include simultaneous opening and lifting of the proscenium curtain, raising and lowering of fly bars, lateral movement of scenery, and emergency activation and shutdown of fire curtains. This thoroughly addresses the longstanding pain points of sluggish operation and poor inter-device synchronization in traditional stage equipment, while offering agile adaptability to the scene-transition requirements of diverse performance settings. As a result, it significantly enhances the efficiency of stage transitions and elevates the overall visual impact of performances.
Precise Positioning and Route Control Function
Equipped with a closed-loop motion control system and multi-sensor fusion positioning technology, this solution delivers high-precision positioning and autonomous travel control for stage machinery. Key features include: positioning accuracy down to the millimeter level—compatible with laser, photoelectric, limit switch, and other positioning methods—enabling precise alignment with stage stations, curtain drop points, and set-piece locations to meet the exacting motion requirements of diverse performance scenarios; support for preset travel storage and real-time travel correction, allowing automatic adjustment of operating speed and travel based on the live performance tempo to prevent equipment collisions while maintaining seamless show flow; and a position-holding memory function that enables repeatable, pinpoint stops at pre-set positions, ideal for standardized, large-scale production workflows.
Heavy-load stable bearing and locking function
Balancing load-bearing capacity with operational stability to meet the demands of heavy-duty stage operations: The equipment features a high-strength frame structure and a precision transmission system, enabling adjustable heavy-load capacity ranging from several hundred kilograms to tens of tons. Its multi-point support and rigid transmission design effectively distribute load pressure, preventing equipment sway and displacement during heavy-load operation. During stationary operations or performance interludes, a dual-locking mechanism—combining mechanical locking with electromagnetic holding brakes—ensures precise immobilization of the equipment, establishing a rigid support state that eliminates any movement or slippage when the load is at rest, thereby guaranteeing the safety of stage performances.
Intelligent Collaboration and Control Functions
Supports both standalone operation and multi-unit collaborative control, catering to the diverse performance needs of theaters and venues: in standalone mode, pre-set operating sequences can be configured for fully automated, autonomous operation, minimizing manual intervention; in collaborative mode, the system can integrate with stage master control systems and fire safety interlock systems, receiving central dispatch commands to coordinate synchronized and orderly transitions among curtain mechanisms, hoists, scenery elements, and other equipment, thereby preventing interference among multiple devices and enhancing overall production efficiency. Additionally, the system features real-time status feedback, continuously reporting equipment operating conditions and fault information—such as drive malfunctions or sensor anomalies—to enable prompt troubleshooting and maintenance, thus preventing performance interruptions.
Convenient storage and scene-adaptive functionality
In keeping with the core requirements of stage equipment—space-saving design and adaptability to diverse settings—the stage machinery features a compact structural configuration with no exposed or redundant components. When not in use, it can be retracted and folded away into the stage roof, backstage area, or side stages, significantly reducing the footprint. At the same time, it offers excellent scene adaptability: based on theater dimensions, performance formats, and safety standards, the equipment’s structure, travel range, and functional configuration can be custom-tailored to suit a variety of venues, including professional theaters, variety-show studios, and convention centers. This approach balances structural strength with operational flexibility, ensuring seamless performance in complex production environments.
Stage machinery
Frequently Asked Questions
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.
Consult now and embark on a smart-driven journey.
Are you grappling with a specific material handling challenge? Are you looking for a more efficient and cost-effective linear drive solution? Would you like to learn how rigid chains can be specifically applied to your production process to deliver tangible performance improvements? Don’t hesitate any longer—contact Evo-Tech’s team of expert consultants today.
Free plan consultation
Regardless of the stage your project is in, we are happy to provide you with an initial technical consultation and proposal recommendations.
Rapid prototyping verification (depending on the project)
For complex or innovative applications, we can assist with conceptual design and preliminary validation.
Full-Process Technical Support
From the initial requirement analysis of the project, through scheme design and manufacturing, to on-site installation, commissioning, and subsequent maintenance, Evo-Tech will provide you with technical support throughout the entire lifecycle.
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Headquarters:
Hebei Evo-Tech Machinery Manufacturing Co., Ltd.
Address:
No. 1 Evo-Tech Avenue, Yuanshi Economic Development Zone, Shijiazhuang City, Hebei Province
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