BEST STEEL SECURITY DOOR SUPPLIER
Top Quality Steel Security Door Manufacturer In China
What is Steel Security Door
Steel security doors, sometimes also referred to as steel doors or security doors, are primarily made of cold-rolled steel sheets and galvanized sheets. The interior filling can vary according to different usage needs, including options like honeycomb paper, honeycomb aluminum, rock wool, and perlite. There are mainly three surface treatment methods: powder coating, heat transfer printing, and PVC lamination. In the last two years, there has also been demand for cast aluminum materials. Steel doors first developed in China, which has supplied 80% of the steel doors worldwide. Tongyu Door Industry has been exporting steel doors globally since 2007, and by 2024, has exported over 100,000 sets of steel doors to more than 60 countries. Below, we will provide a detailed introduction to steel doors.
STEEL SECURITY DOOR SRUCTURE
The structure of a steel door mainly consists of two parts: the door leaf and the door frame. The door leaf is divided into different thicknesses and steel plate also have
different steel thicknesses. The inside of the door leaf is a steel structure, then different fillings are added ( this depends on your requirements, the usage site, and the filling materials different). The door frame is divided into external hemming with inward opening, external hemming with outward opening, internal hemming with inward opening, and internal hemming with outward opening. Additionally, To meet different needs, the door frame can also be made flat, that is, without edging.
Powder coat Fnish
Powder coating on steel doors is a very common surface treatment method. Generally, the color appears solid without patterns. It can be smooth or have a granular texture, mainly used for lower-end locations.
Heat transfer painting
Heat transfer painting involves transferring different wood grain patterns onto the door surface through heat using transfer paper. The color and pattern can vary, available in glossy or matte finishes. Considering the cost, this treatment is slightly more expensive than powder coating, ranging between $5 to $8.
Door Panel
Steel doors mainly consist of the door leaf and door frame. The picture shows the production process of the door leaf. The door in the picture is the highest-end model we call “Carmen”. The door’s steel plate is galvanized, mainly used in high-end places like villas.
Door Frame
The video shows part of the door frame production, which is the production of ordinary door frames. Door frames are made by bending according to different sizes, then welding, and afterwards powder coating or thermal transferring. The color of the door frame can be the same as the door leaf or different, depending on the customer’s needs. Some customers may choose thermal transfer for the door leaf and powder-coated black for the frame.
Steel Door Filling Material
Different filling materials can endow security doors with various functions. The use of materials is flexible, allowing you to choose different filling materials based on your needs. Of course, there is a difference in price among different materials.
Honeycomb Filling
Honeycomb paper filling is a type of filler commonly used in low-end commercial projects. We use high-quality honeycomb paper that ensures strong support for the door leaf’s steel plate, resulting in a smooth and even door surface.
Rock wool Filling
Rock wool is a fire-resistant filling material that is often used in fire doors. It is cost-effective and provides fire protection, making it a popular choice for many commercial projects.
Aluminum honeycomb
Honeycomb aluminum serves a similar purpose to honeycomb paper, providing support for the door’s steel plate. It offers higher strength and support compared to honeycomb paper, ensuring a flatter and smoother steel plate on the door leaf.
Perlite board
Perlite is a type of volcanic glass that has been processed by humans. It typically comes in white or gray and has excellent thermal insulation and fire-resistant properties. It is commonly used in venues that require a higher level of fire protection.
The Advantages of Security Doors
High Security: Compared to standard doors, security doors are made of steel, offering a higher level of protection. They usually come equipped with multi-point locking systems and reinforced hinges, effectively preventing lock picking and forced entry.
Durability: Materials used in security doors, such as steel plates and cast aluminum, possess excellent corrosion resistance and wear resistance, thus having a longer lifespan and being able to withstand various types of wear and tear from daily use.
Diverse Designs: Tongyu security doors offer a variety of styles to meet the needs of different architectural styles and personal preferences. Whether you prefer a modern minimalist style or a traditional classic style, you can find a suitable security door design.
Fire Resistance: Some security doors also feature fire resistance, which can help prevent the spread of fire to some extent, providing additional safety for residents.
Sound Insulation: Our security doors are designed with sound insulation in mind, effectively reducing noise intrusion from the outside and offering a quieter living environment.
Easy Maintenance: Due to the characteristics of the materials, security doors are generally easy to clean and maintain, requiring no complex upkeep.
High-Grade Materials
Cold rolled steel
- Cost-Effectiveness: Cold rolled steel plates are relatively lower in cost, making them suitable for large-scale production and helping reduce overall manufacturing costs.
- Processing Performance: Cold rolled steel plates have good processing performance, making them easy to cut, bend, and shape, ideal for manufacturing complex-shaped door panels.
- Surface Smoothness: The surface of cold rolled steel plates is smoother, allowing for direct application of paint or film without additional surface treatment steps.
- Strength and Hardness: Cold rolled steel plates have higher strength and hardness, providing good structural support, suitable for doors requiring high strength.
Galvanized steel
- Rust Resistance: The most significant advantage of galvanized steel plates is their excellent rust resistance. The galvanized layer effectively protects the steel plate from corrosion, extending the product’s lifespan.
- Sacrificial Anode Protection: When the galvanized layer is damaged, zinc acts as a sacrificial anode, corroding before the iron, thus protecting the steel base. This feature is known as sacrificial anode protection.
- Environmental Adaptability: Galvanized steel plates are suitable for various environments, especially in humid or corrosive conditions, where their corrosion resistance is even more prominent.
- Paint Adhesion: After surface treatment, galvanized steel plates can provide good paint adhesion, making the paint layer more uniform and durable.
- Fire Resistance: Galvanized steel plates are not easily combustible at high temperatures, possessing certain fire resistance properties, making them suitable for the production of fire doors.
Security lock system
Whether it’s a standard security door or a Cast steel door, we all use high-standard security lock systems. Besides the lock points on the side, there are lock points at both the top and bottom of the door panel, effectively ensuring the safety of the house.
Different Usage Scenarios
Steel security doors are widely used in various types of houses due to their numerous advantages, including theft prevention and safety, durability, design diversity, sound insulation and fire resistance, and ease of maintenance.
Apartment
Safety Concerns
In high-density living areas like apartments, safety is one of the main concerns for residents. The durability and strength of steel security doors play a crucial role in preventing unauthorized entry, offering a sense of safety to the inhabitants.
Aesthetic Appeal
Modern steel security doors come in a variety of designs, catering to different decorative styles. They not only ensure safety but also enhance the overall look of the apartment buildings.
living Homes
Customization Options
Steel security doors can be tailored to meet the specific needs and preferences of homeowners, balancing personal taste with security requirements.
Durability and Cost Savings
The high durability of steel materials ensures that these doors can be used for a long time, reducing the frequency of replacements and saving costs for homeowners.
Warehouse
The primary requirement for warehouse doors is security. A good security door can effectively prevent theft and resist violent damage. Tongyu steel doors are made from high-quality materials, and the locks are high-security multi-point anti-theft locks. Tests have shown that it would take a professional locksmith more than an hour to open one.
Schools
Enhancing Campus Security
For schools, where the safety of students is a priority, steel security doors significantly improve the level of security on campus.
Reducing Maintenance Costs
Their durability and ease of maintenance help schools save on repair and replacement costs.
Hotels
Creating a Safe Lodging Environment
The core of the hotel business is to provide guests with a comfortable and secure place to stay. Steel security doors play a key role in enhancing guests’ sense of safety.
Building Guest Trust
Installing high-quality steel security doors signals to guests that the hotel values their safety, helping to build trust and satisfaction.
Hospitals
Ensuring Patient and Staff Safety
In hospitals, where the environment is complex and security cannot be overlooked, steel security doors ensure the safety of patients and staff.
Meeting Special Security Needs
Hospitals have special security needs, like the safe storage of drugs and medical equipment. Steel doors offer added protection for these sensitive areas.
Additionally, the use of antibacterial paint on these doors can prevent the spread of bacteria.
Villas
Emphasizing Privacy and Security
Villa areas, known for their higher demand for privacy and security, find an ideal solution in steel security doors, which offer excellent protection against external intrusions.
Matching High-End Design
Villa owners often have high aesthetic standards. The versatile designs of steel security doors can perfectly complement the luxurious designs of villas.
Why Choose TongYu To your Partner?
As a manufacturer with more than 17 years of experience in wooden door and steel door manufacturing, TongYu can provide you with a full range of interior door manufacturing services. In the past 20 years of business development, we have continued to innovate and summarize, making Tongyu Door Industry’s products popular. Widely praised.
For a project or a need, you will enjoy wholehearted service from the moment you contact us. We provide free price calculations, style design, hardware recommendations, and professional suggestions for reference. We ensure that all inquiries will be answered within 24 hours, and the fastest will be answered within 2 minutes, and we have online inquiry services or telephone contact services. TongYu looks forward to your Contact.
Frequently Asked Questions
Yes, we can customize the size according to your actual needs.
Yes, we will send you a drawing of the opening direction before production to ensure that the door is installed correctly.
Normally, it needs to be installed by professional installers. If there are no installers available, we will provide installation instructions.
The minimum order quantity for standard steel security doors is 30 sets, and the minimum order quantity for Cast steel doors is 10 sets.
Usually we only accept 30% deposit and balance before shipping
We will help you book the container and help you arrange shipping. just give the sea port name which is nearest you, we also can help you to check the shipping cost for reference.
