Shot Blasting Machine and Sandblasting Machine

Core Definition and Working Principle of Shot Blasting Machine

1. Core Definition: Shot blasting equipment is the operating machine for the shot blasting process and belongs to cold processing equipment. It works by converting mechanical energy into kinetic energy without relying on chemical reactions or high temperatures.

2. Working Principle:

Pellet Feeding System: Conveys pellets (media) to the high-speed rotating shot blaster (impeller).

Accelerated Projection: The blades of the shot blaster eject pellets at an extremely high linear velocity to form a fan-shaped pellet flow.

Workpiece Impact: High-speed pellets continuously strike the surface of the workpiece, generating powerful impact force.

Composition and Structure of Shot Blasting Equipment

A complete set of shot blasting equipment usually consists of the following five major systems:

Core Definition and Working Principle of Sandblasting Machine

1. Core Definition: Sandblasting equipment is the core machinery for surface treatment processes and belongs to cold processing equipment. Essentially, it operates by converting pneumatic energy into impact energy.

2. Working Principle: The sandblasting process is mainly divided into two types: "suction type" and "pressure type".

Power Source: The equipment relies on externally supplied compressed air for power.

Accelerated Abrasive：

Suction Type: When compressed air flows through the spray gun at high speed, negative pressure is generated to "suck" abrasives into the gun, which are then ejected along with the airflow.

Pressure Type: Compressed air first enters a sealed pressure tank to "push" the abrasives inside into the sand delivery pipe, and the abrasives are then sprayed out at an extremely high speed.

Workpiece Impact: The high-speed abrasive jet continuously strikes the workpiece surface, producing cutting and impact effects.

3.Main Components:

Power System: Serving as the core component, it includes external air compressors as well as pressure regulating valves, solenoid valves and other parts installed on the machine, which are used to control and supply high-pressure air.

Sandblasting System: It consists of pressure tanks (pressure-feed type) or sand hoppers (suction type) for storing abrasives, sandblasting guns and nozzles (usually made of wear-resistant boron carbide material), acting as the executive parts for abrasive spraying.

Working System: Namely the sandblasting cabin or workshop, where workpieces are processed. For automatic models, it also includes workpiece conveying devices such as conveyor belts and turntables.

Dust Removal System: Composed of dust removal fans and dust collectors, it is designed to extract and filter dust generated during operation,ensuring a clean working environment.

Shandong Kaitai is a leading enterprise in the global shot blasting and peening equipment industry. Its intelligent complete sets of shot blasting and cleaning equipment hold a domestic market share of approximately 41% and an international market share of around 23%, ranking first in both markets. Kaitai boasts representative high-end products in two major categories: shot blasting machines and sandblasting machines.

Shot Blasting Machine: The King of Batch Processing Efficiency

Kaitai's shot blasting machines excel in high efficiency and automation. Their core component is the self-developed shot blaster, whose technology reaches the world-leading level.

Representative Products and Applications:

Q37 Series Integrated Hanger Shot Blasting Cleaning Machine: Suitable for batch rust removal and surface strengthening of small and medium-sized castings, forgings and other workpieces. It features integrated functions, plug-and-play use and easy operation, which can effectively improve the fatigue strength of workpieces.

Robotic Shot Blasting Machine: Specially designed for complex-shaped castings such as engine cylinder blocks and cylinder heads. Precisely controlled by the PLC system, it can adapt to different workpieces and achieve dead-angle-free cleaning.

Sandblasting Machine: The "Industrial Beautician" for Complex Components

The sandblasting machine marks a crucial breakthrough for Kaitai in its transition from "following others" to "taking the lead". The shot blasting and cleaning equipment independently developed by Kaitai has filled the gap in intelligent metal surface cleaning equipment. Its self-developed intelligent sandblasting cleaning robot has filled the domestic market gap and replaced imported products.

Representative Products and Applications:

B20S Intelligent Sandblasting Cleaning Robot: A star product of Kaitai, it has been selected into the "High-quality Shandong Brands" list. Its core advantages are as follows:

- Intelligent and Flexible: Adopting eight-axis linkage and AI vision guidance technology, it operates as flexibly as a human arm and precisely processes large complex curved surfaces such as high-speed train car bodies and aircraft.

- Remarkable Cleaning Effect: It delivers thorough cleaning and forms compressive stress on the workpiece surface, extending the service life of workpieces by 10 to 15 times.

- Ultra-high Efficiency: Taking the cleaning of train carriages as an example, the whole process is fully automated, with an efficiency 50 times that of manual operation.

FAQ

1.What is a shot blasting process?

Shot blasting — sometimes referred to as wheel blasting — uses a centrifugal wheel inside a large machine to clean surfaces. 

2.What is the difference between sandblasting and shot blasting?

Shot blasting is an automated, high-velocity mechanical process using metal shot for heavy-duty cleaning and surface hardening (peening), while sandblasting (or abrasive blasting) typically uses compressed air to propel varied media (sand, glass, walnut shells) manually for cleaning or finishing. Shot blasting is faster and better for large-scale, deep cleaning, whereas sandblasting offers more versatility and precision for smaller or delicate jobs

3.What material is used in shot blasting?

Shot blasting materials such as Steel Shots, Steel Grit,Garnet Steel Shot, Aluminum Shot, Stainless Steel Cut Wire Shot, Lead Shot, Zinc Shot etc. these materials are available as per IS or SAE Specifications.

4.Is shot blasting a good job?

The advantages come thick and fast – it's efficient, and highly effective at getting the worst of corrosion up and away. Shot blasting is fantastic at cleaning up metal surfaces that have suffered from oxidisation (rust), and which may be dotted with debris and dirt.

5.Does shot blasting remove rust?

Unlike sandblasting, which relies on compressed air, shot blasting delivers a more aggressive and efficient cleaning action, making it ideal for heavy-duty applications. Key Uses: Removing rust, mill scale, or debris. Deburring sharp edges for safer handling.