Spinner Hanger Shot Blasting Machine for Continuous Surface Cleaning and Metal Preparation in Industrial Production Lines

A pass through monorail shot blasting machine is a continuous, high-efficiency surface treatment device. It conveys workpieces via an overhead monorail system through a sealed blasting chamber, where high-speed abrasive (shot, grit) impinges on the workpiece surface to remove contaminants and improve surface properties. It is widely used in batch and mass production lines of metal workpieces.

• Continuous and Automated Surface Cleaning
  • Realizes uninterrupted processing: Workpieces are mounted onto monorail hangers. They travel automatically into the blasting area, go through the blasting process and exit the chamber, requiring no manual handling during the whole operation.
  • Strong cleaning capacity: It can quickly remove rust, scale, oxide layers, welding slag, oil stains, and old paint films on the surface of workpieces. The cleaning uniformity is high, and the surface roughness can be controlled stably (generally Ra 1.6-6.3 μm).
• Surface Strengthening Function
  • Through controlled shot peening, the surface of metal workpieces (such as steel structural parts, castings, forgings) forms a residual compressive stress layer, which effectively improves the fatigue resistance and service life of the workpiece, and is suitable for parts subject to dynamic loads (e.g., automotive chassis parts, engineering machinery components).
• Adaptability to Workpiece Size and Shape
  • The monorail conveyor system accommodates workpieces with different weights, from tens of kilograms all the way to several tons. It can process a wide range of workpiece types such as structural parts, pipe fittings, hardware, plus small and medium castings and forgings.
  • All process parameters can be freely adjusted. Operators can set blasting speed, abrasive flow rate and monorail moving speed according to workpiece material and required surface finish, to meet different surface treatment standards.
• High Environmental Protection and Resource Utilization
  • Equipped with a sealed blasting chamber + dust removal system, which effectively collects dust and abrasive particles, reduces dust emission, and meets environmental protection requirements.
  • Integrated abrasive recycling system: The used abrasive is screened, separated (to remove impurities such as dust and oxide skin), and recycled, which reduces abrasive consumption and production costs.
• Compatible with Subsequent Process Linkage
  • It can connect directly to subsequent working procedures such as painting, spraying and electrophoresis to form a complete surface treatment production line. This raises overall production efficiency. Meanwhile, the textured surface created by blasting significantly strengthens the bonding strength of coatings.