Shot Blasting Machine

Home > Shot Blasting Machine

Wire Mesh Belt Conveyor Shot Blasting Machine

A wire mesh belt conveyor shot blasting machine is a specialized industrial equipment designed to clean, strengthen, and surface-treat various workpieces through the high-velocity projection of metallic or non-metallic abrasive particles. The core mechanism integrates a wire mesh belt conveyor system with a shot blasting chamber, enabling continuous processing of workpieces as they move through the machine. The wire mesh belt, typically made of stainless steel or high-carbon steel, ensures uniform conveyance of parts while allowing abrasive media to pass through, facilitating thorough blasting from multiple angles.

This machine is widely applied in industries such as automotive, aerospace, metal fabrication, and foundries to remove rust, scale, paint, and other surface contaminants. It also enhances surface roughness for better coating adhesion or achieves shot peening effects to improve material fatigue resistance. The conveyor system’s design—with adjustable speed, tension, and mesh size—makes it suitable for diverse workpiece shapes, from small components like screws to larger parts such as engine blocks or structural steel sections.

technical consultation

Video

Working Principle and Mechanical Structure

Principle of Operation

The shot blasting process relies on the kinetic energy of abrasive particles accelerated by turbines or centrifugal wheels. When workpieces are placed on the wire mesh belt, they enter the blasting chamber, where high-speed abrasives impact the surface. The wire mesh design allows spent abrasives to fall through, collecting in a hopper below for recycling. Key operational steps include:

1. Loading and Conveyance: Workpieces are loaded onto the belt, which transports them through the blasting zone at a controlled speed.

2. Abrasive Projection: Blasting wheels (typically 4–8 in number) rotate at 2,000–3,000 RPM, flinging abrasives at velocities up to 80 m/s.

3. Surface Treatment: Impacts remove contaminants and modify the surface microstructure, with the belt’s movement ensuring uniform exposure.

4. Abrasive Recycling: A recovery system (including elevators, separators, and ducts) cleans and recirculates abrasives, while dust collectors remove particulates.

Mechanical Components

Wire Mesh Belt System: Constructed from interwoven wires, the belt resists wear and heat, with tensioning mechanisms to prevent sagging.

Blasting Chamber: Lined with wear-resistant manganese steel or rubber, the chamber houses blasting wheels and deflectors to optimize abrasive flow.

Abrasive Media System: Includes storage hoppers, separators (to remove dust and broken particles), and conveying augers.

Dust Extraction Unit: High-efficiency filters (e.g., cartridge or bag filters) maintain air quality and comply with environmental standards.

Control Panel: PLC-based systems allow adjustment of belt speed, blasting pressure, and recycling parameters for process customization.

Types and Applications in Industries

Major Types Based on Design

1. Through-Type Shot Blasting Machine: Features a straight-through belt design for continuous processing of long workpieces (e.g., pipes, beams).

2. Cabinet-Type Shot Blasting Machine: Enclosed cabinets with smaller belts, suitable for batch processing of small parts.

3. Multi-Chamber Shot Blasting Machine: Segmented chambers for sequential blasting, cleaning, and drying, ideal for high-volume production.

4. Customized Systems: Tailored designs for unique workpieces, such as curved belts for irregular shapes or inert gas chambers for sensitive materials.

Industrial Applications

Automotive Sector: Processes engine components, chassis parts, and wheels to remove casting residues and prepare surfaces for painting.

Aerospace Manufacturing: Cleans and peens turbine blades, landing gear parts, and structural alloys to enhance fatigue strength.

Metal Fabrication: Treats welded structures, sheets, and forgings to eliminate scale and improve aesthetic quality.

Foundry Industry: Deburrs and cleans castings after molding, reducing post-processing labor.

Construction and Mining: Processes heavy machinery parts, pipes, and steel plates to resist corrosion in harsh environments.

Advantages, Limitations, and Technical Innovations

Key Advantages

High Efficiency: Continuous conveyor operation enables throughput of up to 10 tons/hour, depending on workpiece size.

Uniform Treatment: The wire mesh belt ensures 360° exposure, eliminating blind spots compared to manual blasting.

Cost Savings: Recyclable abrasives (lasting 50–100 hours) and automated processes reduce labor and material costs.

Process Consistency: PLC control maintains precise parameters, ensuring repeatable surface finishes (e.g., roughness values of Ra 1.6–25 μm).

Environmental Friendliness: Closed-loop systems minimize abrasive waste, while dust collectors reduce air pollution.

Limitations and Challenges

Initial Investment: High costs (US$50,000–$500,000) due to complex mechanical and electrical components.

Maintenance Requirements: Frequent replacement of wear parts (blasting wheels, belt wires, chamber liners) every 1,000–3,000 hours.

Workpiece Restrictions: Delicate or thin-walled parts may require special fixtures to prevent deformation from abrasive impact.

Noise and Vibration: Operational noise levels exceed 85 dB, necessitating soundproofing in production facilities.

Technological Innovations

Intelligent Control Systems: Integration of IoT sensors to monitor abrasive flow, belt tension, and machine health in real time.

Energy-Efficient Blasting Wheels: High-efficiency turbines with variable frequency drives (VFDs) reduce power consumption by 20–30%.

Advanced Abrasive Media: Ceramic or composite abrasives with longer lifespans (2–3 times that of steel shot) and reduced dust generation.

Modular Design: Interchangeable blasting modules allow quick reconfiguration for different workpiece types, minimizing downtime.

Maintenance, Safety Protocols, and Future Trends

Maintenance Best Practices

Routine Inspections: Daily checks of belt tension, wheel alignment, and abrasive levels to prevent operational failures.

Wear Part Replacement: Scheduled replacement of blasting wheel blades (every 500 hours) and belt segments (every 1–2 years).

System Cleaning: Weekly removal of abrasive buildup in hoppers and separators to maintain recycling efficiency.

Lubrication: Regular greasing of conveyor rollers and tensioning mechanisms to extend component life.

Safety and Regulatory Compliance

Personal Protective Equipment (PPE): Operators must wear hearing protection, eye shields, and respiratory masks.

Emergency Stop Systems: Quick-acting switches and interlocks to halt operations in case of malfunctions.

OSHA and CE Standards: Compliance with safety regulations for noise exposure, machine guarding, and dust emissions.

Lockout/Tagout Procedures: Protocols for isolating energy sources during maintenance to prevent accidental startup.

Future Trends

Integration with Industry 4.0: AI-driven predictive maintenance using machine learning to forecast component failures.

Eco-Friendly Designs: Water-based blasting alternatives or dry ice blasting for reduced abrasive waste.

Hybrid Processing Systems: Combination of shot blasting with robotic arm technologies for complex workpiece geometries.

Compact Footprint Models: Space-efficient designs for small-to-medium enterprises (SMEs) with limited production floors.

Basic Parameter

The wire mesh belt conveyor shot blasting machine has evolved into a critical asset for modern manufacturing, balancing efficiency, precision, and versatility. Its ability to handle diverse workpieces while maintaining consistent surface treatment makes it indispensable across heavy industries. As technology advances, innovations in automation, energy efficiency, and environmental sustainability will further expand its applications, solidifying its role in the future of smart manufacturing. Whether for deburring castings, peening aerospace components, or preparing surfaces for coating, this machine continues to drive productivity and quality in industrial processing.

Shot Blasting Machine

Home > Shot Blasting Machine

Wire Mesh Belt Conveyor Shot Blasting Machine

technical consultation

Video

Working Principle and Mechanical Structure

Types and Applications in Industries

Technological Innovations

Future Trends

Basic Parameter

Online Message

Hotline

+86-136 8495 9862

Coil Forming & Handling Equipment

Surface Treatment Equipment

Solutions

Application

About Us