Airless Shot Blasting Machine - Roller Conveyor Type

Airless Shot Blasting Machine - Roller Conveyor Type

The Tunnel Type Airless Shot Blasting Machine is a continuous, high-production roller conveyor shot blasting machine designed for cleaning long or flat components such as plates, fabricated structures, pipes, beams, channels, and sections. It is engineered for uninterrupted production where components require efficient surface preparation in a single pass.

Components move through a blasting chamber or tunnel on a conveyor system while multiple high-speed blast wheel units project abrasive media from optimized angles. This ensures uniform cleaning, rust removal, descaling, and coating preparation with high productivity.

Available Configurations

  • Roller Conveyor Type
  • Belt / Conveyor Type Diabolo
  • Roller Type (for pipes and round jobs)

For sheet, plate, and other flat components that have a length

Smart Process Overview

Working Principle

Components are loaded onto the inlet conveyor and moved into the blasting chamber. Inside the tunnel, multiple shot blasting turbine units positioned at calculated angles project abrasive media at high velocity onto the component surfaces.

Continuous conveyor movement exposes the entire surface to the abrasive stream for complete cleaning. For pipe applications, diabolo rollers rotate the job during blasting to ensure full circumferential coverage.

Used abrasive falls into the hopper and is recovered through the screw conveyor, bucket elevator, and air wash separator. Clean abrasive is reused, while dust and fine particles are extracted through the integrated dust collector system. Cleaned components exit through the outlet conveyor ready for painting, coating, or further processing.

Built With Precision Components

Main Components

1

Blast Wheel Units

10 HP to 30 HP high-efficiency turbines arranged in a multi-wheel configuration for full blasting coverage.

2

Blasting Chamber (Tunnel)

Heavy-duty chamber lined with manganese steel liners and replaceable wear plates.

3

Conveyor System

Roller, chain, or diabolo roller systems with VFD-controlled speed for different component types.

4

Abrasive Circulation System

Includes longitudinal and cross screw conveyors, bucket elevator, and air wash separator for abrasive recovery.

5

Dust Collection System

Bag filter or cartridge-type dust collector with pulse jet cleaning system.

6

Sealing System

Rubber curtains at entry and exit points to prevent abrasive leakage.

7

Electrical Control Panel

PLC-based control system with interlocks and safety features.

Custom Engineered Mechanism

Roller Conveyor Blasting Configuration

The Roller Conveyor Type uses motorized rollers to move components smoothly through the blasting chamber for continuous cleaning and efficient processing. It is ideal for plates, beams, H/I sections, and structural fabrication materials requiring uniform surface preparation. This configuration is widely used for stable handling of long and heavy components.

It is the most common type due to its reliable performance and easy integration with production lines. High throughput and consistent blasting quality make it a preferred industrial solution.

Why Choose a Tunnel-Type Machine

The Tunnel Type Airless Shot Blasting Machine is ideal for continuous mass production requiring consistent blasting quality. It is best suited for long, flat, and structural components where fast throughput and repeatable surface preparation are critical.

Its high efficiency, multi-wheel blasting system, and easy integration with automatic coating or painting lines make it a preferred solution for modern fabrication facilities.

Related Industries You May Like

Explore a wide range of industries where shot blasting plays a critical role in improving surface quality, durability, and production efficiency. From automotive and foundry to fabrication and heavy engineering, Jinil's solutions are designed to meet diverse application needs, ensuring reliable surface preparation, consistent finishing, and optimized performance across demanding industrial environments.

Complete Support Portfolio

Applications

The Tunnel Type Airless Shot Blasting Machine is suitable for continuous blasting of large and long components.

1

Shot blasting of plates and sheets

2

Cleaning of beams, channels, and angles

3

Surface preparation before painting

4

Pipe external cleaning

5

Rust and scale removal from structural parts

6

Pre-treatment before coating or galvanizing

Operational Performance Benefits

Advantages

The Tunnel Type Airless Shot Blasting Machine offers several productivity and operational benefits.

  • Continuous high-production system
  • Uniform surface finish in a single pass
  • Suitable for long and heavy components
  • Reduced material handling time
  • Easy integration with painting lines
  • Efficient abrasive recycling
  • Low operating cost per ton

Advanced Engineering Highlights

Design Features

Customization options are available based on production requirements.

  • Multi-stage blasting zones
  • Pre-heating or drying section integration
  • Automatic thickness detection system
  • Heavy-duty roller design for high loads
  • Pipe rotating synchronization system
  • Integration with the primer coating line

Additional System Enhancements

Optional Features

  • Continuous production system
  • High throughput in sqm/hr or tonnage output
  • Uniform blasting quality
  • Suitable for heavy fabrication components
  • Multi-wheel blasting arrangement
  • Conveyorized automated operation

Optional Accessories

The machine can be upgraded with accessories based on production needs and application requirements.

PLC with HMI & SCADA Integration

Enables centralized control, real-time monitoring, and seamless automation for efficient and optimized blasting operations.


Variable Conveyor Speed (VFD)

Allows speed adjustment based on production requirements, ensuring consistent blasting quality and controlled processing time.


Automatic Loading and Unloading System

Automates material handling to reduce manual effort, improve safety, and enhance overall productivity.


Magnetic Separator for Abrasive Cleaning

Separates contaminants from reusable abrasive media to maintain consistent performance and extend media life.


Abrasive Level Sensor

Monitors abrasive levels continuously to ensure uninterrupted blasting and stable operational performance.


Auto Abrasive Replenishment System

Maintains optimal abrasive levels automatically, minimizing downtime and ensuring continuous efficiency.


Dust Collector with Spark Arresto

Ensures a clean environment while preventing sparks from entering the system for improved operational safety.


Air Blow-Off System

Removes residual dust and abrasive from components after blasting for a clean and ready surface.


Auto Shot Flow Control Valves

Regulates abrasive flow automatically to maintain consistent blasting intensity and optimize media consumption.


Soundproof Enclosure

Reduces operational noise levels, improving workplace safety and ensuring compliance with noise standards.


Conveyor Synchronization with the Painting Line

Integrates blasting with coating processes to enable smooth, continuous production flow and improved efficiency.


Frequently Asked Questions

Clear answers to common questions about Jinil's shot blasting machines, surface preparation solutions, and engineering support—helping you make informed decisions with confidence.
1. What is a Tunnel Type Airless Shot Blasting Machine? +

A Tunnel Type Airless Shot Blasting Machine is a continuous conveyorized blasting system used for cleaning long, flat, or structural metal components in a single pass.

2. What components can be processed in this machine? +

It is suitable for plates, sheets, beams, channels, angles, pipes, fabricated structures, and long heavy components.

3. What is the advantage of a roller conveyor shot blasting machine? +

A roller conveyor shot blasting machine offers continuous production, faster handling, and uniform blasting quality for long components.

4. Can pipes be blasted in this machine? +

Yes, machines with diabolo roller systems are designed for pipe rotation and full external blasting coverage.

5. Which industries use tunnel-type shot blasting machines? +

Steel fabrication, shipbuilding, oil & gas, wind energy, construction, railways, and heavy engineering industries commonly use these machines.

6. Does the machine recycle abrasive media? +

Yes, the machine includes screw conveyors, a bucket elevator, and a separator for continuous abrasive recovery and reuse.

7. Can the machine integrate with painting lines? +

Yes, it can be synchronized with coating, painting, and primer application lines for automated production flow.

8. Can the machine be customized? +

Yes, options such as SCADA controls, heavy-duty rollers, thickness detection, pre-heating zones, and automatic loading systems can be provided.