02 Mold

Mould design

Topwell has a complete range of injection moulding machines which enables us to fulfil the distinct scope of our customers’ stipulation. We have a comprehensive manufacturing set up with flair to design, manufacture & mould contributes to our ability to provide full systems solutions.

Topwell's Engineers use 2D & 3D software to proceed the CAD / CAM processes, we need the 3D drawings for making the mold according to the profile of the parts and the 2D drawings to specify the dimensions & tolerances of the molded parts. Customers can provide ProE Part File; STEP; Parasolid or IGES file format for the 3D part file; and DWG; DXF or SLDDRW file formats for the 2D drawings.

Mold Design Computer Aided Design

Once we receive the Purchase Order from customers, we take immediate actions on two parts, Well-trained 3D Part Engineers use the 2D & 3D software as to:

1.Check the interferences and undercuts of the 3D files; if there is any interference and / or undercut, we instantly inform customer and ask whether they will resend the modified drawing to us or we should modify the part  ourselves according to customer's instruction.

2.Define and add the shrinkage rate to the 3D part file.

3.Define the Parting Line of the mold into Cavity Side; Core Side; Slides or lifters; inserts and copper electrodes.

4.Modify the insufficient draft angles for proper ejection of the molded parts; redraw all these parts then send to the CNC Programming section.

5.If the draft angle is not enough for ejection, we usually ask the customer for a larger draft angle then modify the 3D file according to customer's instruction.

Mold Design Engineers

We usually deeply study the part files from customer then perform our analysis as to:

Ensure that there is no undercut on the part; any interference on mold actions, sufficient draft angle for the surface textures or part ejection.

Design the proper mold actions according to the need. Determine the best injection gate location; best gate type; best gate section area for the part and well balance on the runner for Multi-Cavity mold.

Determine the water cooling and its location, ensure heat transfer is enough that the mold temperature on the Cavity side and Core sides should be as even as possible and make sure that no conservation of heat partially on the cavities or cores.

Make sure that there is enough Air Venting on the mold and for sure no air trap Burn marks when Molding with High Speed.

3D Mold Layout

Topwell provides the 3D Mold Layout to the customer if required.

Computer Numeral Control Programming Section

CNC programmers will proceed with the following procedures after receiving the files from the Mold Design Engineers and Parting Engineers:

Compile the CNC programs according to the Modified Part Files.

Perform the tool paths for CNC Milling and / or EDM Wire Cutting, make sure no error or interference exist in the programs.

Send the checked programs via intranet and distribute printed copy to the CNC Machining Section for machining the Steel Inserts or Copper Electrodes. Or send the program via intranet and distribute printed copy to the EDM Wire Cutting Section for EDM Wire Cutting.

Mold Flow analysis

Topwell Molud design Engineers use Mold Flow for analysis of the gate best position and fill in state. Moldflow provides definitive results for flow, cooling, and warpage along with support for specialized molding processes. We usually conduct Mold Flow to avoid any errors of mold construction and optimised design.

Hard Moulds

Topwell is a one stop for the right solutions of product design and development.

Our engineering professionals have extensive experience offering and implementing production tooling. For parts devised with purpose of functional use of compact tolerances ,testing requirements and high volume production our experts use hard tooling as soft tools have minimal scope for design or dimensional alterations after the completion of tooling.

Soft tools cannot match the durability of a hard tool.

Mould making

We carry out professional manufacturing activities related to Plastic Mould, along with mould flow analysis to get the perfect moulds. The tool rooms has capabilities of producing high precision multi- cavity injection moulding tools ranging from small and medium sizes to large size tools.

Soft Moulds

We have specialized Engineering & design divisions that offers an extensive range of services at every step from concept to manufacturing.

To manufacture a lower volume of parts, we commonly use the urethane process with silicone moulds which produces parts from silicone. It allows relatively cheap tooling, for high number of parts, and enables us to use the intended production material .

Once the Soft tooling mould developed, we complete the R&D Testing , then proceed to Tooling/Mould production.

2K Mould

A two-shot mold, double injection, or 2K mold, is an injection molding technique that allows different materials to be blended into one object. This method may be used to give plastic products a plush or rubber feel, add color to a part, or create products with various performance qualities.

Molds might have a single cavity or several cavities. Multiple cavity molds can produce pieces with the same geometry or with distinct geometries in each cavity.

Since aluminum has poor mechanical qualities and is vulnerable to wear, distortion, and damage from the injection and clamping pressures, it is not recommended for high-volume manufacturing or components with tight dimensional tolerances. Steel molds are more costly than aluminum molds while being more robust and precise.

The form and features of the component, the materials used for the part and the mold, and the characteristics of the molding machine all need to be carefully designed for the injection molding process.

Why make silicone molds?

Because silicone has many advantages, it is a strong choice for model making. With silicone molding, you can easily make custom designs.

The silicone mold itself is extremely durable, so you can reuse it without worrying about breaking. Compared to the organic component of rubber, the inorganic component of silica gel has a higher resilience to high temperatures, cold, chemical exposure and even fungi. TOPWELL has 27 years of research and development and production experience in silicone mold design, mold production and processing, and mass production of silicone products.

We have the strength and confidence to serve each of our customers.

Topwell Spring Development Limited (TOPWELL) has more than 27 years of expertise and experience in manufacturing Injection Molds. Over the years we have manufactured Molds of various sizes and complex to the satisfaction of our customers.

Due to our ability to maintain extreme fine tolerances coupled with extensive Plastic Injection molding expertise, the development of tooling and manufacturing components has turned out to be one of our various strength points.

Die cast tooling

Die casting is a method of casting liquid die forging, a process done on a dedicated die casting die forging machine.

Its basic process is: the liquid metal is first cast at low speed or high speed into the mold cavity, the mold has an active cavity surface, and it is pressed with the cooling process of the liquid metal, which not only eliminates the shrinkage and porosity defects of the blank, but also makes the internal organization of the blank reach the broken grain in the forged state.

The comprehensive mechanical properties of the blank have been significantly improved. TOPWELL in mold design; 27 years of experience in production and processing; It can produce and process different kinds of die casting molds and die casting parts of different materials.

high-precision mould

mold is a precision manufacturing mold used to produce a variety of high-precision parts. It has the following characteristics:

Precision size control: The high-precision mold adopts advanced manufacturing process, which can realize the precise control of the size of the parts and ensure that the dimensional accuracy of the product reaches the micron level.

Excellent surface quality: The surface finish, roughness and shape accuracy of the high-precision mold have reached a high level, making the surface quality of the produced parts excellent and reducing the difficulty of the subsequent processing process.

High durability: The high-precision mold is made of high-performance materials, which has good wear resistance, corrosion resistance and fatigue resistance, and improves the service life of the mold. Strong anti-interference ability: In the design process, the high-precision mold fully considers the various external factors that may be affected by the parts in the production process, so that it has a strong anti-interference ability.

Easy operation and maintenance: high-precision mold structure design is reasonable, easy to operate, easy for workers to operate. At the same time, the maintenance work of the mold is also relatively simple, which is conducive to improving production efficiency.

Strong adaptability: High-precision molds can be customized according to production needs to meet the production needs of different products. At the same time, the mold has good versatility and can adapt to a variety of production processes and environments.

Energy saving and environmental protection: In the process of manufacturing and use of high-precision molds, we pay attention to energy saving and environmental protection, reduce energy consumption and reduce waste emissions, which is in line with the current development trend of green manufacturing.

In TOPWELL, our company attaches great importance to high-precision mold, with the continuous upgrading and transformation of the manufacturing industry, the market demand for high-precision mold will continue to grow. In the future, TOPWELL high-precision mold will develop in the direction of more precision, more intelligent and more environmentally friendly, and our company will continue to vigorously develop the development of high-precision mold; It is also a strong support for us to win customer orders.

TOPWELL was founded in 1996; Focusing on the injection mold industry for more than 20 years. We are in the study of blow molding processing production of plastic containers, mature technology, and tough strength. To meet the needs of a large number of orders, our company has successively added more than 600 advanced injection molding machines, 16 bottle blowing machines, and more than 40 fully automatic assembly equipment; established a dust-free workshop; and obtained ISO9001 quality management system certification and patent certificate. This ensures that product qualification rates and production efficiency continue to improve.

Relying on the industry's leading production concepts and 27 years of accumulated experience in mold manufacturing and plastic container production, we have successfully developed a variety of products that meet market demand. From cosmetics, industrial containers, PET plastic bottles, sports bottles, cosmetic bottles, plastic wine glasses, health care product bottles, Christmas gift food containers, and precision medical blowing accessories, we are widely involved and constantly innovating.

At the same time, we have also developed a series of plastic-blowing and injection-molded parts for toys and cartoons. To produce high-quality products, we have introduced a large-scale fully automatic high-speed bottle-blowing machine. Now we can accept orders of up to 15 million pieces, and the minimum order quantity is only 10,000 pieces. In terms of raw material selection, we insist on using imported raw materials from the United States, Europe, Japan, and South Korea, such as PE, PP, PVC, PETG, PS, PLA, PC, ABS, etc.

As an experienced and dynamic company, TOPWELL will continue to lead the development of the injection mold industry and join hands with customers to create a better future!

Plastic Injection Moulding

TopWell is recognised as one of China’s leading Plastic Injection Moulders.

We have 20 years of rich experience building plastic injection moulds and providing end-to-end tooling solutions for various range of industries. We have advanced and sophisticated high precision machines, which enables us to make close tolerance injection moulds under competitive lead-times. We Manufacture Plastic Moulds and supply Moulded Components of high standard quality which are exported all around the world.

To serve this purpose we have up to date injection moulding facilities along with required tool manufacturing set up.

Plastic Mold Manufacturer and Assembling

Computer Numerical Control Machining & Computer Aided Manufacturing.

After receiving the checked program files and printed copy from CNC Programming Section, get the assigned Steel, Copper and Mold Base from the Warehouse; Milling Section or Grounding Section then will start the proper processing.

After mounting the Steel; Copper or Mold Base onto the CNC Machining Centre or CNC Machine, calibrate the related co-ordinates, seting the Datum.

Loading the related program to the machine and double check all the information, such as Mold Number; Steel Insert Number or Copper Electrode Number.

This is to be sure that all the parts and accessories in house are having their own marking numbers and all of them are traceable.

After machining is complete, Parts and Accessories will be sent to QC Department to inspect the critical dimensions before being released to EDM and / or Wire Cutting Sections for further processing.

Electrode Discharge Machining

When QC inspectors complete the dimensions check, electrodes will be sent to Polishing Section to polish away the surfaces to their requirements then released to the EDM Section.

EDM Technicians will check the number of the Work Piece (Steel Insert; Beryllium Copper and others), the Copper Electrodes , Set up Data Sheet and the EDM program number, to ensure all these items belong to the same job order.

the work piece onto the EDM Machine and calibrate and reset the Datum, input the EDM program and Set  according to the requirement. Double check the above then start the testing procedures, confirmed the tested EDM position and the settings are correct then start EDM process.

During the EDM processing, frequently checking the flow of the fluid to ensure no deposition of carbon on the work piece or no undercut was made. Check the dimensions of the work piece with measuring instrument or gauge during EDM process if necessary.

EDM Wire Cutting Section

EDM Wire Cutting Section will handle all the Wire Cutting Works such as Pockets; Inserts; Lifters; Slides; Slots and Holes. All these processes must be conducted according to the drawings and requirements previously released by the Engineering Department and under the monitoring of our strict Quality Control System.

Fitting and Assembling

Fitting and Assembling Section is responsible for the final completion of the mold, all the Cavity & Core Inserts; Slides & Lifters; Parts & Accessories; Screws & Pins and other components must be fitted and assembled by the technicians of this section. They reflect the ability; capability; quality of the mold manufacturing and represent the reputation of the company.

Plastic Mold Manufacturer

Topwell is capable of building 500 to 1000 sets of molds per annual, about 25% of them are Bi-material / Double Injection Molds and about 35% are Hot Runner Mold.