Most of methods for marking specifications of injection molding machines use three methods: injection volume, mold clamping force, injection volume and mold clamping force expressed simultaneously.

This method uses 80% of theoretical injection volume (cm3) of standard screw of injection molding machine as injection capacity of injection molding machine.
However, this capacity changes with injection pressure and screw diameter selected when designing injection molding machine. At the same time, injection volume is closely related to performance and status of processed materials. Therefore, specifications of two injection molding machines cannot be directly determined using injection volume representation method. For example: XS-ZY-250, represents a pre-molded (Y) plastic (S) injection (Z) molding (X) machine with an injection capacity of 250cm3.

This method uses unit of maximum mold clamping force of injection molding machine as tons to express specifications of injection molding machine. Since mold clamping force will not be changed by other factors and can directly reflect size of products molded by injection molding machine, mold clamping force expression method is intuitive and simple. However, since mold clamping force cannot directly reflect volume of injection molded product, this method cannot express full capability and size of injection molding machine when processing products, and it is not convenient enough to use.

Expression method of injection volume and mold clamping force is international standard expression method of injection molding machines. This method uses theoretical injection volume as numerator and mold clamping force as denominator (injection volume/mold clamping force). Specifically expressed as SZ-□/□, S represents plastic machinery, and Z represents injection molding machine. For example, SZ-200/1000 represents a plastic injection molding machine (SZ) with a theoretical injection volume of 200cm3 and a mold clamping force of 1000KN.
Now let me give you an example to show you several marking methods of advanced foreign imported injection molding machines:

 

ENGEL large 2000T imported two-color injection molding machine

 

ENGEL large 1700T imported two-color through-shot injection molding machine

 

KS (KraussMaffei) large 1300T imported injection molding machine

 

LG/LS 1300T large imported single color injection molding machine

 

Imported 210 T Demag injection molding machine
Specifications of Chinese injection molding machines are compiled according to national standards. The first item in specifications of injection molding machine is category code, represented by S for plastic machinery; the second item is group code, represented by Z for injection; the third item is variety code, represented by English letters; the fourth item is specification parameters, represented by Arabic numerals. The third item and fourth item are generally separated by a horizontal line, which means they are expressed as: SZ□-□.
Now I will give you an example to show you several marking methods of domestic advanced injection molding machines:

 

Domestic JM Chen Hsong single color injection molding machine

 

Domestic leader Haitian single color injection molding machine

 

Domestic FCS FCS two-color injection molding machine