Gerneral injection molding machine is currently the most widely used, process the thermoplastic of the single-stage, single-station injection molding machines, gerneral injection molding machine can be screw also can be plunger, but the screw is the main, which it can be horizontal type, vertical type also can be angle type, the horizontal type is the mainly. General injectin molding machine according to working ability、injection and clamping part’s structure hydraulic and electric control feature to detailed classification.

By injection molding machine capability classification: gerneral injection molding machine capability classification mainly by clamping force injection capacity to decision.  Injection capacity is the maximum injection colume to represent, therefore, general injection molding machine have large, medium and small.

By clamping mechanism feature classification: accoding to clamping mechanism can devided into institutional, hydraulic and hydraulic institutional.

By injection parts structural characteristics classification: injection molding machine can according to injection cylinder classification such as single injection cylinder and double injection cylinder. Can according screw devide into general motor or servo motor driven screw and high-speed or low-speed.

By hydraulic system feature classification:injection molding machine hydraulic system can according valve class system divided into conventional valve system, proportional ans servo valve system, cartridge valve system, also can be divided into accumulator system and non-accumulator system.

By injection molding machine control system classification: according to injection molding machine control loop nature and feature can divided into routine control, open loop control, closed-loop control.