射芯机是采用覆膜砂制芯，适用于热芯盒和冷芯盒两种。射芯机的特点是应用两根导柱，开合模垂直分型，同时安装两副不同的模具，中间固定架可以双面安装定模，左右开合模（相当于双模架）。射芯机广泛应用于铸造行业中，用射芯机制造的型芯尺寸精确，表面光洁。射芯机工作原理是将以液态或固态热固性树脂为粘结剂的芯砂混合料射入加热后的芯盒内，砂芯在芯盒内预热很快硬化到一定厚度（约为5～10 mm) 将之取出，形成表面光滑、尺寸精确的优质砂芯成品。
The core shooter is made of coated sand and is suitable for both hot and cold core boxes. The characteristic of the core shooting machine is to use two guide pillars, open and close the mold vertically, and install two different sets of molds at the same time. The middle fixed frame can install fixed molds on both sides, and open and close the mold on both sides (equivalent to double mold frames). Core shooting machines are widely used in the casting industry, and the core size manufactured by these machines is precise and the surface is smooth. The working principle of the core shooter is to inject a core sand mixture with liquid or solid thermosetting resin as the binder into the heated core box. The sand core is preheated and quickly hardened to a certain thickness (about 5-10 mm) inside the core box, and then taken out to form a high-quality sand core product with a smooth surface and precise dimensions.
射芯机近年来应用比较广泛，由于使用射芯机造型可以省去高额的造型工工资。因为是多箱叠放浇注还能减少浇冒口的浪费，浇注后的覆膜砂溃散性很好，利于清砂。射芯机生产效率高，砂型尺寸精确，可适当减少加工量；操作简便，铸件成品率高。更多铸造厂更青睐于使用射芯机造型。
Core shooters have been widely used in recent years, as using them for shaping can save high molding wages. Because multiple boxes are stacked for pouring, it can also reduce the waste of the pouring riser, and the collapsibility of the coated sand after pouring is good, which is conducive to sand cleaning. The core shooting machine has high production efficiency, precise sand mold size, and can reduce processing volume appropriately; Easy to operate, high yield of castings. More foundries prefer to use core shooter modeling.
