News

Advantages

Low Cost
Topper leverages an offshore plastic mold making plant with a lower cost structure in order to offer lower pricing than Topper's competitors.

High Quality

Topper is ISO 9001:2008 certified, and Topper processing quality systems ensure that your parts are the highest quality possible for your applications.

Quick Turnaround

Topper offers three different shipping methods, including next day air, to accommodate your timing and budget requirements.

Online Quotes
Topper interactive online quotation system provides instant quotes for plastic mold making, injection molding, CNC machining and die casting.

Industry News

Classifications of Electroplating for Plastic Products

Posted: 10/28/2022 12:10:40
Hits: 21

In recent years, the application of plastic products has become more and more extensive due to the rapid development of social technology. In the process of manufacturing plastic products, the use of advanced electroplating plays a particularly important role. Studying the electroplating process of...

The Development Prospects of the Four Major Plastic Products

Posted: 10/12/2022 10:10:49
Hits: 16

With the rapid development of China's national economy, China will focus on the development of four major categories of agricultural plastic, packaging plastic, construction plastic and engineering plastic products in the future according to the national key development plan. Agricultural...

The Importance of Locations of Pouring Gates

Posted: 09/24/2022 09:09:42
Hits: 16

The pouring gate is the most critical part of the gating system, and its type and size are directly related to the quality of the product and the cost of the mold. There are many gate structures of injection molds, and different types of pouring gates have slightly different sizes, characteristics and...

The Design of the Injection Mold for LED Lamp Inner Shells (Part One)

Posted: 08/22/2022 05:08:19
Hits: 24

1. Mold Design One mold, two cavities, and two-parting three-plate type plastic parts plus runner product structure are adopted, the designed mold assembly structure and 3D effect are shown in Figure 1. Figure 1 The structure and shape of the mold (a) Assembly drawing of mold structure...

Design Analysis of LED Lamp Inner Shells Based on UG or MFI

Posted: 08/13/2022 03:08:49
Hits: 15

Bicycle LED lights are an important guarantee for the safety of cyclists at night. The inner shell for fixing the LED components is the core part of the lamp and is usually made of the ABS plastic by injection molding. The plastic parts of the inner shell usually have complex structure because they...

Low Carbon of Stamping Equipment

Posted: 07/19/2022 11:07:47
Hits: 16

In the stamping process, the forming equipment produces plastic deformation of the metal sheet through the action of its actuator. The energy consumption of the stamping process is represented by the power consumption of the stamping and forming equipment, and the carbon emission of the stamping process...

Optimization of the Stamping

Posted: 06/29/2022 01:06:26
Hits: 21

In the stamping process, the forming of the product will be affected due to the unreasonable design and selection of process parameters, forming defects such as wrinkles, cracks, and burrs. Optimizing the stamping process can reduce the generation of forming defects and improve the quality. At present,...

The Analysis of Energy Consumption of Stamping

Posted: 06/17/2022 07:06:41
Hits: 32

Sheet metal stamping parts are widely used in automotive, aerospace, electrical and electronic industries due to their advantages of light weights, high strength, low raw material consumption and high production efficiency. In recent years, the output of automobile stamping parts in China has grown...

Color Changes in Plastic Products Caused by High-temperature Molding

Posted: 05/13/2022 08:05:40
Hits: 68

When using color masterbatch to color plastic products, color changes may occur, thus affecting the quality of the product. Analyzing the mechanism of discoloration caused by the following factors provides a reference for plastic part manufacturers to correctly select raw materials and produce...

How to Prevent the Flow Mark for the Injection Molded Part?

Posted: 03/31/2022 09:03:59
Hits: 24

The reasons for the flow mark and the measures are as follows: (1) Ring-shaped flow marks occur on the surface of the plastic part due to poor melt flow, which centers on the pouring gate. When the low-temperature and high-viscosity melt with poor flow properties is injected into the cavity...

3D Printing Shortens the Molding Cycle of Gear Products

Posted: 03/29/2022 09:03:01
Hits: 13

The cooling of plastic products during injection molding is mainly completed by the mold cooling water channel, but the traditional cooling water channel is manufactured by machining processes such as milling machines. The water channel can only be a cylindrical straight hole, which cannot completely...

The Injection Molding Process of PC

Posted: 02/27/2022 09:02:28
Hits: 11

As we all know, PC is commonly known as polycarbonate, which has excellent mechanical properties, so it is commonly known as bulletproof rubber. PC has the characteristics of high mechanical strength, wide operating temperature ranges, good electrical insulation performance, good dimensional stability,...