rubber silicone gasket of die cut and mold press technology comparsion

Traditional die-cutting is a cutting technology of silicone rubber gasket in the late processing. Die-cutting technology can make silicone rubber gasket into die-cutting plate according to pre-designed graphics for cutting, so that the shape of silicone rubber products is no longer limited to right angles. The traditional die-cutting knife is combined into die-cutting plate according to the design requirement of product. Under the action of pressure, the silicone rubber dense sheet is cut into the desired shape or cutting mark. Die pressing technology is the use of line knife or line pressing die, through the action of pressure on the sheet metal to produce line marks, or the use of rolling wheels on the sheet metal to roll out line marks, so that the sheet metal can be bent in a predetermined position. Usually die-cutting and indentation technology is the combination of die-cutting cutter and line-pressing cutter in the same template, in the die-cutting machine at the same time die-cutting and indentation processing technology, referred to as die-pressing.

Die pressing is a kind of production technology which can make the sheet metal directly deformed by the force of the conventional or special punching equipment, and obtain the product parts with certain shape, size and performance. Sheet metal, mold and equipment are the three elements of stamping process. According to the stamping temperature, it can be divided into hot stamping and cold stamping. The former is suitable for silicone rubber processing with high deformation resistance and poor plasticity, while the latter is carried out at room temperature, which is commonly used for sheet metal stamping. It is one of the main methods of metal plastic processing (or pressure processing), also belongs to the material forming engineering technology.

The die used for stamping is called stamping die, or die. Punching die is a special tool for batch processing silicone rubber material into required blanking parts. The punching die is very important in stamping. Without the punching die that meets the requirements, the batch stamping production will be difficult; without the advanced punching die, the advanced stamping process will not be realized. Stamping process and die, stamping equipment and stamping materials constitute the three elements of stamping processing, and only when they are combined can stamping parts be obtained.

Rubber silicone gasket Die cut process has the following limitations:

In cases where the gasket is a uniform thickness with no contours, a die cut gasket may work. Keep in mind that sometimes, if the part is too thick or the size of contours is too small when compared to the thickness, a die cut gasket may not be possible.
Another limitation of die cut gaskets is thickness tolerance – we have seen instances where a molded gasket with tighter thickness tolerances was necessary given the stack-up height and components in the mating parts.
Finally, die cut gaskets that are more than 0.125″ thick will likely have a dished shape along the edges and the thicker the material, the more pronounced the dish shape will be. “As shown in the drawing below, the ‘dish’ effect is a concavity of die-cut edges (due to the squeezing of the material by the pressure of the cutting die). The width ‘W’ (or length) at the top and bottom surface are slightly greater than the width ‘W-X’ at the center.”

Die cut gasket photo show:

Mold press photo show:


Shenzhen Qiguang Technology Co.,Limited is a leading Chinese manufacturer in the field of silicone and rubber products.We have own mold house which can make the mold by ourself. The range of our product line, good quality and competitive prices have made us one of the fastest growing companies of its kind in China. Our silicone rubber products comply with ROHS,SGS & FDA standards; and many of our products have been exported worldwide, such as USA. Canada, and Europe countries, The best price and quality is our aim for market;

Our main products is as follows;  
(1)Silicone rubber products,such as gasket,washer,shock damper,shock absorber,vibration damper,rubber bumper,rubber damper,silicone rubber bushing,silicone rubber stopper,silicone rubber plug,silicone rubber feet,silicone rubber base,silicone  rubber keypad,silicone rubber wristband,silicone rubber bush ,O ring ,Hand grip or handle ,vibration damper,Anti -slip pad,rubber sleeve,rubber bellows,rubber grommet,rubber bushing,rubber tube,waterproof gasket,rubber bunge,rubber bowl,rubber cover etc Vulcanized silicone rubber products

(2)Adhesive bumpers,such as bumpons,anti-slip pad,rubber foot with adhesive tape,rubber feet, bumpers, self adhesive rubber feet, vinyl bumpers and silicone feet etc;

All of our products are made with newly material,so please don’t worried about the quality; Welcome to negotiate and guide with us,so as to mutual benefit and make progress together in future.If you need,Please don’t hesitate to contact us anytime!


Production Equipment:we have 15 sets of Vulcanizing machines,2 sets of cut machines and 2 sets of mixing machines,Meanwhile,the work-time of machine is 24 hours,so please rest assured about the lead time.

Mold House:we have own mold house,which mold time and mold cost is good in market,and we have design terms,so we can make sure everything is prefect when the mold is ready.Meanwhile,the mold will be free to keep over for ever.

Test Equipment:The quality will be control by our QC department,When the finished product is made, our workshop staff will do two tests, and then the business staff will do a depth test to ensure that each product is as perfect as possible.


Contact Qiguang Tech

Qiguang Tech is a professional Rubber and Silicone parts development and manufacturing in Shenzhen, China

Focus on the development and manufacture of rubber silicone products more than 10 years.

Our advantage is Customize all kinds of rubber and silicone products

Address:  Qianyesong Technology Park, No. 4, Jincheng Road, Fucheng’ao, Pinghu Street, Longgang District, Shenzhen, Guangdong, China (Mainland)   


Mobile : 86-13669519751

Phone: 0086-755-84552919





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