Can Plastic Gear Racks Be Used in Automatic Door Systems?

Can Plastic Gear Racks Be Used in Automatic Door Systems?

Plastic Gear Racks are components made from plastic materials that consist of a series of teeth and gaps. They are utilized to transmit power and motion in various mechanical systems, including automatic door systems. Plastic gear racks offer unique advantages due to their material properties and design flexibility. This article explores the use of plastic gear racks in automatic door systems, focusing on their structure, materials, advantages, applications, installation, maintenance, and selection criteria.

Structure and Materials

A. Composition of Plastic Rack

The basic structure of a plastic gear rack consists of a sequence of teeth and gaps. The design of the teeth profile is critical in ensuring efficient force transmission and smooth motion. The teeth must be precisely crafted to match the corresponding gear, which facilitates the conversion of rotational motion into linear motion.

The importance of rack design and tooth profile cannot be overstated, as these factors influence the performance, durability, and efficiency of the gear rack. Properly designed teeth ensure minimal friction and wear, contributing to the reliability of the system.

B. Commonly Used Plastic Materials

Common plastic materials used in the manufacture of gear racks include:

  • Polyamide (PA)
  • Polyethylene (PE)
  • Polypropylene (PP)

Plastic Gear Rack


1. Lightweight and Corrosion Resistance

Plastic gear racks are significantly lighter than their metal counterparts, reducing the overall weight of the system. Additionally, they are resistant to corrosion, making them suitable for environments where moisture and chemicals are present.

2. Low Noise and Low Friction

These gear racks operate quietly due to their low friction properties. The reduced noise levels make them ideal for applications where noise reduction is critical.

3. Cost-Effective and Easy to Process

Plastic gear racks are more cost-effective to produce and process compared to metal gear racks. The manufacturing process is simpler, resulting in lower production costs.

4. Design Flexibility

The versatility of plastic allows for more intricate and customized designs. This flexibility enables the creation of gear racks that meet specific application requirements.

5. Resistance to Chemicals and Moisture

Plastic gear racks exhibit excellent resistance to chemicals and moisture, making them suitable for use in harsh and corrosive environments.

6. Reduced Wear on Other Components

The low friction and smooth surface of plastic gear racks reduce wear on other components, leading to longer service life and lower maintenance requirements.

Plastic Gear Rack


Automation and Robotics

Plastic gear racks are widely used in automation and robotics systems for precise motion control and power transmission. They are utilized in robotic arms, gantry systems, linear actuators, and other automated machinery.

Electric Tools and Appliances

Plastic gear racks are employed in electric tools such as drills, saws, and sanders, where they help convert rotational motion into linear motion. They are also used in household appliances like mixers, blenders, and printers for smooth and efficient operation.

Transportation and Automotive

Plastic gear racks are utilized in various transportation and automotive applications. They can be found in steering systems, seat adjustment mechanisms, window regulators, and convertible tops, providing reliable and precise movement.

Medical Equipment

Plastic gear racks are used in medical equipment such as hospital beds, patient lifts, and adjustable tables. Their lightweight, corrosion-resistant, and low-noise properties make them suitable for healthcare settings.

Packaging and Material Handling

Plastic gear racks are employed in packaging and material handling machinery to facilitate the movement of products along conveyor systems or for precise positioning in packaging operations.

Industrial Machinery

Plastic gear racks are utilized in various industrial machinery, including CNC machines, cutting systems, textile machinery, and printing presses. Their low friction and wear properties contribute to smooth operation and reduced maintenance.

Agricultural Equipment

Plastic gear racks find applications in , such as crop harvesters, seeders, and irrigation systems. They help in the efficient movement of components and ensure precise control in agricultural operations.

Recreation and Sports Equipment

Plastic gear racks are used in recreational and sports equipment, such as exercise machines, bicycles, and golf carts, to convert rotational motion into linear motion for enhanced performance.

Renewable Energy Systems

Plastic gear racks are employed in renewable energy systems, including solar panel tracking systems and wind turbine pitch control mechanisms, to optimize energy generation and tracking capabilities.

Plastic Gear Rack Application
Plastic Gear Rack Application

Installation and Maintenance


1. Select the Appropriate Installation Location

Choose a suitable location that ensures the gear rack can operate without obstructions and provides the necessary support.

2. Alignment and Securing

Proper alignment is critical to ensure smooth operation. Secure the gear rack firmly to prevent movement during operation.

3. Adjust Tension

Adjust the tension of the gear rack to ensure optimal performance and avoid excessive wear.


1. Regular Cleaning

Keep the gear rack clean to prevent the accumulation of debris that could impact its performance.

2. Lubrication

Regularly lubricate the gear rack to minimize friction and wear.

3. Inspect and Replace Worn Parts

Regularly inspect the gear rack for signs of wear and replace any damaged components.

4. Avoid Overloading and Improper Use

Ensure that the gear rack is not subjected to loads beyond its capacity and avoid improper use that could damage the rack.

5. Regularly Inspect and Maintain Other Related Components

Check other system components regularly to ensure they are in good condition and do not adversely affect the gear rack.

Plastic Gear Rack Installation

How to Select the Right Plastic Gear Rack

1. Load Capacity

Determine the load capacity required for your application to select a gear rack that can handle the expected forces.

2. Gear Module

Choose the appropriate gear module to ensure compatibility with the corresponding gear and achieve the desired motion.

3. Rack Length and Dimensions

Select the correct length and dimensions of the gear rack to fit the specific requirements of your system.

4. Material Selection

Consider the environmental conditions and choose a material that provides the necessary resistance to chemicals, moisture, and other factors.

5. Accuracy Requirements

Ensure the gear rack meets the accuracy standards required for precise operation in your application.

6. Environmental Conditions

Evaluate the operating environment and select a gear rack that can withstand temperature variations, humidity, and other environmental factors.

7. Manufacturer Reputation and Quality

Choose a reputable manufacturer known for producing high-quality gear racks to ensure reliability and performance.

8. Cost-Effectiveness

Consider the cost-effectiveness of the gear rack, balancing quality, performance, and price to make an informed decision.


EVER POWER is a leading manufacturer of gear racks in China, equipped with over 100 professional rack production and testing equipment. The company offers a wide range of products, including standard and non-standard racks, with lengths up to 3000MM and module ranges from M1 to M30, British CP, and American DP. To meet the demands of high-end customers, EVER POWER has introduced advanced rack milling and grinding machines from Germany, ensuring precision up to DIN6n25 standards.

The company's products are exported to numerous countries including Spain, the Netherlands, the United States, South Korea, Turkey, and Russia. EVER POWER is committed to quality, timely delivery, and customer satisfaction, with a focus on developing new products and resolving technical issues. The company adheres to the principles of quality first, timely delivery, and credit first, welcoming cooperation with business partners worldwide.

EVER POWER offers various rack products such as Gear Rack For Door Opener, gear rack for elevator, rack and pinion steering, metric gear rack, and more. Customers are encouraged to inquire about customized products tailored to their specific needs.

EVER POWER primarily serves domestic steel rolling mills, shipyards, precision machine tool factories, automation machinery factories, and various distribution companies. The company's products are also exported to Western Europe, the Middle East, Southeast Asia, and other regions. With a workforce of hundreds of employees, including many engineers, and fixed assets of 20 million yuan, EVER POWER has an annual output value of 50 million yuan. The company produces a wide range of racks, including standard and non-standard straight racks, helical racks, double-sided racks, cylindrical racks, and various inch racks, with precision levels up to 7 to 9.

EVER POWER's products support a variety of industries, including horizontal directional drilling rigs, the military, large and medium-sized machine tools, automatic skylights, marine, steel mills, coal mines, petroleum, woodworking machinery, flame cutting machines, engraving machines, automated assembly lines, and more.

EVER POWER maintains a strict quality management system, equipped with a series of precision measuring instruments and 16 full-process production monitoring systems. The company operates 30 fully automatic precision CNC rack-specific machine tool assembly lines and more than 20 general-purpose machine tools, ensuring considerable competitiveness in the industry.

Gear Rack Factory
Gear Rack Factory