About Us

Máy dập nổi cửa

The metal door production line has always been one of the most important items in HARSLE’s business. We will customise all the machines for the whole production line according to the customer’s needs, from the most important hydraulic press for pressing metal door panels to the smallest intelligent door locks for the finished security doors. We can help our customers to choose the most suitable ones. For customers who have purchased a metal door production line, we also arrange for our engineers to visit the factory to guide production and help customers to start making money as soon as possible.


Customer Praise


Country of Sale

door production line

Door Production Line

HARSLE is first professional steel door production line machine manufacturer in China, we have made more than 50 successful cases in the world for customers. We are not only the machine manufacturer, but also the technical service provider, we offer coordinated services to help customers run the business in a better way.

Lịch sử phát triển


Established Nanjing HARSLE Machine Tool Co.,Ltd., engaged in the production, sales and maintenance of sheet metal machinery such as bending machines, shearing machines, punching machines, and hydraulic presses.



Provide customers with a complete set of machines for metal door processing, metal sink processing and other production lines, and have signed cooperation agreements with overseas agents to provide our customers with better services.



The annual sales of both domestic and foreign trade have exceeded 10 million dollars. More and more customers trust us and to work with us, and we have also provided them with the most suitable products. With strong export volume and excellent customer feedback, it was selected as a certified supplier by Made-in-China.com.


Our company's main products: press brake, shearing machine and hydraulic press have obtained the utility model patent certificate certified by the State Intellectual Property Office. In the following years, the CNC press brake produced by our independent company obtained the appearance design patent certificate certified by the State Intellectual Property Office.


The press brake and hydraulic presses produced by HARSLE have obtained CE certification. We Participated in the 6th India BLECH Exhibition in the same year and attracted many overseas customers to place orders on the spot with high-quality machines and professional explanations.


The punching machine and shearing machine produced by our company have successively obtained CE certification. In the same year, the company participated in the Dubai exhibition and passed the ISO9001:2015 quality system certification.

Why Choose HARSLE

Choosing HARSLE means choosing good machine, good quality and good service.

Phát video về harsle

Fabrication Equipment

HARSLE has both experienced senior engineers and innovative young engineers, all of them are committed to building better machines.


Our Services



365 ngày một năm, 7x24 giờ mỗi tuần và hỗ trợ dịch vụ qua điện thoại đường dây nóng của công ty (+ 86-25-56200956).



E-mail service support is available 24 hours per day, 365 days per year. E-mail: support@harsle.com



The company established a technical support and response center, set up a dedicated person to carry out 7x24 hours on duty.


On Site(charge)

Khi cần thiết, công ty sẽ cử các kỹ sư kỹ thuật có kinh nghiệm đến tận nơi để cung cấp dịch vụ cho người dùng.

HARSLE CE Certificate

In line with EU CE standards, the quality of the machine is guaranteed



HARSLE sales are experienced and friendly, so feel free to contact us when you have question about the machine


Bộ phận uốn

Ivy Zhang

Bộ phận cắt

Sissi Zhang

Bộ phận đục lỗ

Wendy Xu

Froming Division

Grace Guo

Bộ phận cửa

Jimmy Chen

Bộ phận Laser

Sandy Xue

Shearing Machine Video

Video show is always the best to help customers to choose the right metal sheet shearing, So HARSLE endeavors to create the most attractive and useful videos for you to learn more about our hydraulic shear details in a better way.

HARSLE Y27-3000T/1500T Double Action Hydraulic Press Machine For Steel Door Embossing

HARSLE Y32-2500T Steel Door Embossing Machine

HARSLE 4500T Double-Action Hydraulic Steel Metal Door Embossing Machine, 3000T/1500T hydraulic press

Y32-2000T Single Action Steel Door Embossing Machine

HARSLE 2500T Steel Door Embossing Machine, Metal door pressing machine with PLC and Touch screen

HARSLE Double Action Hydraulic Steel Metal Door Embossing Machine

Frequently Asked Questions

If you have more questions, please click the button below to view.
What are the important contents of the door embossing machine?

Working features
Structure type
Drive system
Working medium
Common failuresDoor embossing machine is a special machine for making and forming patterns for security doors, steel doors, interior doors, stainless steel doors, iron doors, etc. In recent years, it has been popular among security door manufacturers, steel wholesale markets and other factories. The machine has the features of high efficiency, convenience, safety, energy saving, beauty and low cost. The surface of the embossing roller has a clear pattern to ensure the quality of embossing on the surface of metal sheet. Many of our experienced engineers have improved the design to make the machine simple in structure and excellent in performance. Easy to operate and easy to learn, a person can learn how to do it in just a few minutes.

What machines are needed for steel door production?

press brake, shearing machine, punching machine, door embossing machine, door frame embossing machine, door frame cutting machine, folding machine, hot press machine, transfer printing machine, laser cutting machine, CNC V-grooving machine.

You can visit this link to know more details:

What is the hot press machine?

A hot press machine is a device that heats two pre-fluxed and tinned parts to a temperature sufficient to melt and flow the solder, cure it, and form a permanent electro-mechanical connection between the
part and the solder. The heating up speed is selectable according to different products.

What is the thickness of a door?

Common thickness is one and three-eighth inches with the other options being 1.5. one and five-eighth, and one and three-fourth inches. Especially large or oversized varieties with a height over 90 inches or a width of over 36 inches tend to be thicker than the standard door sizes

How do you make a simple steel door?

1. Production preparation before steel structure processing
1) Technical preparation: drawing review, in-depth design, processing and production plan, process test.
2) Material preparation: procurement, inspection, storage.
3) Equipment preparation: transportation, processing, welding, painting, testing.
4) Labor organization preparation: special operation certificate, pre-job training, technical disclosure.

2. Manufacturing process of steel structure
1) Lofting, number material
① Lofting: The first process in the steel structure manufacturing process is to draw the entity of the product or the parts and components on the lofting table or at the scale of 1:1 according to the shape and size required by the product construction details or the parts and components drawings. On the flat plate, the process of obtaining the actual length and making the model.
② No. material: Draw the actual sample of the component on the steel according to the template, and mark various processing marks to prepare for the cutting and blanking of the steel.
2) Cutting: Cutting is to separate the shape of the parts of the staked and numbered materials from the raw materials. Commonly used cutting methods are: gas cutting, mechanical cutting) and plasma cutting.
3) Forming: According to the design requirements, the process method of bending the plate or section steel into a certain shape using processing equipment and certain tooling molds. Generally, there are two methods of cold bending and hot bending.
4) Correction: Steel will be deformed during storage, transportation, hoisting and processing, and steel and components that do not meet technical standards must be corrected. Correction methods: flame correction, mechanical correction and manual correction.
5) Edge processing: edge processing methods are: shovel edge, planing edge, milling edge and carbon arc gouging edge.
6) Hole making: including rivet holes and bolt holes, which can be drilled and punched. The allowable deviations such as hole-making accuracy and hole spacing should comply with the design and specifications.
7) Assembling: also known as assembling, assembling, and assembling, it is to assemble the processed parts and semi-finished components into independent finished products according to the requirements of the construction drawings. The methods of assembling steel structures include ground-sampling method, copy-copying assembly method, vertical assembly method, horizontal assembly method, and tire mold assembly method.
8) Welding: Welding is a key step in the fabrication of steel structures.
9) Milling end, drilling mounting holes and friction surface treatment
10) Rust removal, painting and numbering

3. Steel structure pre-assembly
Due to the limitation of the capacity of transportation and installation equipment, or in order to ensure the smooth progress of the installation, a plurality of finished components are set and assembled in the factory according to the space required by the design to check the connection between the parts, which is called pre-installation. assembled.

What are the types of folding machines?

Manual folding machine:
This series of manual folding machines is developed on the basis of summarizing the production and use of manual folding machines for many years. It integrates the advantages of various manual edge folding machines. A box or plate with four sides and one bottom. Moreover, a flange can also be folded on the upper part of the box. When all the upper dies are installed, the straight sheet can be folded.

Mechanical folding machine:
An edge folding machine is a machine that processes the edge of the product. For example, a lithium-ion power battery automatic folding, packaging and folding machine adopts a multi-station rotating cycle method. The lithium-ion power battery is folded and packaged through three stations. , has the characteristics of low cost, stable performance, high degree of automation, and convenient adjustment.

What does a folding machine do?

An edge folding machine is a machine that processes the edge of the product. For example, a lithium-ion power battery automatic folding, packaging, and folding machine adopts a multi-station rotating cycle method. The lithium-ion power battery is folded and packaged through three stations. , has the characteristics of low cost, stable performance, high degree of automation, and convenient adjustment.

The folding machine is a simple bending machine, which can be either manual or motorized. The easiest way to do this is to use a model with a bending radius to hold the steel plate firmly on the machine table. The protruding part of the material is placed on another table that can be rotated around the center of the bend radius. As the movable table rises, it bends the stainless steel to the desired angle. The stainless steel slides on the table when the bend is made. Therefore, to prevent scratching the stainless steel, the surface of the workbench must be smooth. In actual processing, the stainless steel surface is usually protected with a plastic film.

How do you manufacture a steel door?

What Is Galvanealed Steel?
Galvanised steel is a steel surface that's received a galvanized coating that has been annealed, which is a process of heating and allowing to cool slowly, to make it easy to paint.

How does the Steel Get Shaped?
Next the steel doors go through a process called Shearing. This process cuts the sheet metal to the specified size needed for manufacturing.

Spot Welding The Metal Doors
One of the most important parts of the metal door manufacturing process is called Spot welding. Spot Welding is used to attach hinge, closer and lock reinforcements within the body of the door, as well as securing any additional stiffeners.

After the steel shell is assembled, a core is then added to the door. The core is used not only to provide a more rigid door, but also allows for additional features such as energy efficient door insulation, bullet resistance and sound proofing. There are three types of door cores: Honey Comb core, the steel stiffened core, and finally the polystyrene core. While in past the honeycomb core was most popular, environmental efficiency in modern buildings has demanded that a polystyrene core door become an industry standard.

Finishing The Door With Some Edge Welding
Finally, after all the components of the door are assembled, the metal door is then placed through a machine called an edge welder. This automatic welder merges both of the edges of the two door halves into one finished product.

The next step is to move the door into the finishing room. Here workers grind the edges of the weld down to a smooth finish, and make any finishing touches by sanding imperfections and stains. The door is then inspected one last time for quality before being mounted to hangars and entering the painting booth.

Voice From Customers

Here's what customers around the world say about our door embossing machine.

We have an excellent after-sales technical team, which can be served according to customers requirements.

Exhibition Style

Since the company was founded, HARSLE has participated in various national and international exhibitions every year

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