8GN Caterpillar Type Abrator (metal type) fits for removing adhering sand, rust and oxidated layer on surface of castings, forgings and pressings. Inside casing is made of high-manganese and high-chrome guarding plate; checking gates are equipped at two sides to check, adjust and exchange caterpillar which is in highest flight in contrast with similar products in this industry. This equipment adopts one-disc curved impeller abrator with high speed, good energy-saving ability, high shot-blasting volume, wearable parts, good cleaning quality, short period, compacted structure, low noise, simple structure and good performance, fit for bearing factory, cast steel factory and thermal treatment workshop. This equipment is divide into two types: structure with feeding system and structure without feeding system.