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Tunnel-type machine is designed for plates, beams, pipes, and structures requiring single-pass cleaning. Conveyorized movement and multiple blast wheels ensure fast, uniform surface preparation.
The Airless Shot Blasting Machine - Tunnel Type is a continuous, high-production system for cleaning long or flat components such as plates, structures, pipes, beams, and sections. Components pass through the blast chamber on a conveyor while multiple blast wheel units clean the whole surface in a single pass.
This is the parent tunnel system, offered in three conveyor configurations to suit the job: roller conveyor for plates and beams, belt or chain conveyor for heavy or irregular fabrications, and diabolo rollers that rotate pipes and round jobs for full circumferential cleaning. It suits fabrication lines that need uninterrupted production, fast throughput, and reliable surface preparation before painting or coating.
Available Configurations
*Advanced machine for cold forging, railway boogie work and shot pinning needs
Smart Process Overview
Components are loaded onto the inlet conveyor and carried into the blast chamber. Inside the tunnel, several high-speed shot blasting turbine units set at optimized angles throw abrasive onto the surfaces from every side.
The conveyor keeps moving so the whole length of the part is exposed to the stream for complete, even cleaning. For pipes or round jobs, diabolo rollers rotate the component as it passes, so the full circumference is reached.
Used abrasive falls into the hopper and is recovered through screw conveyors, a bucket elevator, and an air wash separator for reuse. The dust collector extracts dust and fines, and cleaned components exit on the outlet conveyor ready for the next process.
Built With Precision Components
Blast Wheel Units
10 HP to 30 HP high-efficiency turbines arranged in a multi-wheel layout for complete coverage.
Blasting Chamber (Tunnel)
Heavy-duty chamber with manganese steel liners and replaceable wear plates.
Conveyor System
Roller, chain, or diabolo roller conveyor with VFD-controlled speed.
Abrasive Circulation System
Longitudinal and cross screw conveyors, bucket elevator, and air wash separator.
Dust Collection System
Bag filter or cartridge-type dust collector with pulse jet cleaning.
Sealing System
Rubber curtains at entry and exit to prevent abrasive leakage.
Electrical Control Panel
PLC-based system with safety interlocks and operational controls.
Engineered Output Parameters
The Airless Shot Blasting Machine - Tunnel Type is built for continuous mass production, where long and flat components need efficient cleaning in a single pass. It delivers high productivity, repeatable finish quality, and reliable automated handling.
Because it comes in roller, belt, and diabolo versions, one tunnel platform covers plates, heavy structures, and pipes alike. Its easy integration with painting and coating lines makes it a preferred choice for modern fabrication plants.
Industrial Solutions
The Tunnel Type suits continuous blasting of long and structural components.
Shot blasting of plates and sheets
Cleaning of beams, channels, and angles
Surface preparation before painting
Pipe external cleaning
Rust and scale removal from structural parts
Pre-treatment before coating or galvanizing
Industrial Solutions
The Tunnel Type brings the efficiencies of a continuous line to heavy fabrication.
Advanced Engineering Highlights
Customization options are available based on production requirements.
Additional System Enhancements
Enables centralized control, real-time monitoring, and seamless automation for efficient blasting operations.
Allows speed adjustment to match production, keeping blasting quality consistent and processing time controlled.
Automates material handling to reduce manual effort, improve safety, and lift overall productivity.
Separates contaminants from reusable media to hold performance and extend abrasive life.
Monitors abrasive level continuously for uninterrupted blasting and stable operation.
Keeps abrasive at the right level automatically, cutting downtime and holding efficiency.
Keeps the environment clean while stopping sparks from entering the system.
Clears leftover dust and abrasive from components after blasting for a clean surface.
Regulate abrasive flow automatically to hold blasting intensity and optimize media use.
Lowers operating noise for a safer workplace and compliance with noise standards.
Links blasting to coating so production flows continuously from clean to paint.
It is a continuous conveyorized blasting machine for cleaning plates, beams, pipes, sections, and structural components in a single pass.
Plates, sheets, beams, channels, angles, pipes, structures, and long fabricated components are ideal for this machine.
It provides continuous production, faster throughput, and uniform blasting quality in a single pass.
Yes, machines fitted with diabolo rollers are designed for rotating and blasting pipes or round jobs.
Common abrasives include steel shot, steel grit, and other suitable industrial blasting media.
Steel fabrication, shipbuilding, oil & gas, wind energy, construction, railways, and heavy engineering industries use these systems.
Yes, it includes screw conveyors, bucket elevator, and separator systems for continuous abrasive recovery and reuse.
Yes, the whole machine is built to order, with options such as SCADA controls, heavy-duty rollers, automatic loading systems, soundproofing, and coating line integration.