300 kg Automatic Swing Operator

How does the 300 kg Automatic Swing Operator work?

1. Trigger Signal: The opening of the door can be triggered by various methods, such as infrared or microwave sensors, manual push buttons, access control systems, etc.

2. Control System Processing: Upon receiving a signal, the controller evaluates the input, verifies that the conditions for opening are met, and issues a command to activate the drive system.

3. Motor-Driven Mechanical Arm: The high-power motor activates and, utilizing a reduction mechanism to output stable torque, drives the mechanical arm or linkage system into motion.

4. Door Opening Process: The mechanical arm pushes the door to rotate around its hinges, opening it to a pre-set angle. This process employs a "soft start" mechanism to prevent sudden jolts, ensuring that even a heavy 300 kg door opens smoothly.

5. Holding Open State: The door remains in the open position for a specific duration, which is adjustable.

6. Automatic Closing Process: The control system issues a command to close the door; the motor reverses direction, and the door closes slowly to prevent slamming or impact, thereby ensuring safe operation even with heavy doors.

What are the installation methods for a 300kg automatic swing door operator?

Due to the specific requirements involved in driving heavy door panels, the 300kg Automatic Swing Door Operator places high demands on installation structures, load distribution, and spatial layout. There are three primary installation methods, each suited to different architectural conditions, door types, and design requirements; during the project consultation phase, we will analyze your specific situation and provide tailored recommendations.

I. Top-Mounted Linkage Type

For swing door operators, this is the most common and flexible installation method. The main motor unit is mounted on the wall or beam directly above the door header. A high-strength linkage arm connects to the motor's output shaft at one end, while the other end is hinged to the upper section of the door leaf. The door leaf rotates around its original hinges, eliminating the need to replace the existing door pivots.

Advantages:

Renovation-Friendly: Requires no floor modification, making it ideal for upgrading existing buildings.

Easy Maintenance: The main unit is exposed, allowing for inspection and repair without removing the door.

Lower Cost: Requires no embedded components or complex civil engineering work.

Installation Requirements:

The upper door header must be constructed from solid concrete or steel; light-gauge steel framing is strictly prohibited. The clear headroom must be ≥ 2100mm, and mounting holes for the linkage arm must be pre-drilled in the upper section of the door leaf.

II. Top-Mounted Gear-Driven Type

If your project demands high precision or a high level of airtightness, we may recommend this installation method. The motor and reduction gearbox are integrated into the top pivot assembly. The door leaf is mounted via specialized load-bearing hinges fitted into upper and lower pivot sockets; the motor directly drives the upper pivot shaft, thereby rotating the entire door leaf.

Advantages:

Smooth Operation: No swinging linkage arm ensures the door leaf remains stable and free of wobbling.

Excellent Airtightness: Commonly used in cleanrooms and laboratories; when combined with sealing strips, it achieves a high degree of airtightness.

Aesthetic Simplicity: No exposed linkage arm results in a cleaner, more streamlined visual appearance.

Superior Load Distribution: The door's weight is shared between the upper and lower pivots, extending the lifespan of the hinges.

Installation Requirements:

Requires the construction of a new door opening or a complete structural renovation of the existing opening. A base plate for the lower pivot socket must be embedded in the floor, and a load-bearing steel plate must be embedded in the upper structure. The door leaf itself requires a custom-cut central opening to accommodate the upper pivot shaft. This method should be approached with caution in renovation projects involving existing structures, and may not be recommended in such cases.

III. In-Ground Hydraulic System

This represents a concealed solution designed for high-end commercial settings and environments lacking overhead structural elements. The hydraulic cylinder and motor are integrated within a ground-embedded housing; a push rod extends upward from the floor to connect to the bottom edge of the door leaf, causing the door to pivot outward from its base when opening.

Advantages:

Completely Concealed: No visible equipment is present overhead, thereby preserving the aesthetic integrity of the building's facade.

Suitable for Beam-Free Structures: Ideal for spaces featuring glass curtain walls or suspended gypsum board ceilings.

Enhanced Sense of Occasion: Frequently utilized for entrances to luxury retail stores, museums, and private villas to create a grand, ceremonial effect.

Installation Requirements:

The ground surface requires trenching and pre-embedding work; the finished surface must undergo waterproofing treatment to prevent corrosion caused by water accumulation. In the event of a malfunction, the access cover must be lifted to perform maintenance, which can be relatively inconvenient. Furthermore, this system imposes strict requirements regarding the flatness and levelness of the floor. If your project places a particularly high priority on aesthetics—and provided that the site conditions are compatible—this installation method serves as an excellent choice.

FAQ

Q: What is the fundamental difference in operating principles between a 300 kg swing door operator and a 150 kg model?

A: The basic operational logic is identical; however, the hardware redundancy differs significantly.

Motor: The motor in the 300 kg automatic swing door operator features higher power output and thicker heat sinks.

Gear Material: The 300 kg unit requires gears precision-machined entirely from steel to withstand immense shear forces.

Spring Strength: When equipped with a door-closing function, the internal return spring pressure in the 300 kg swing door operator is 2 to 3 times greater than that of standard units.

Q: Why does the opening speed of the 300 kg swing door operator appear relatively slow?

A: This is due to the management of physical kinetic energy; if a 300 kg door were to move too quickly, the kinetic energy it generates would pose a significant safety hazard.

Heavy-duty units prioritize operational stability under high torque—rather than sheer speed—to ensure the ability to come to an instantaneous halt at any point in the door's travel.