Pass Through Tunnel Type Roller Conveyor Shot Blasting Machine With Manganese Liner

Pass through tunnel type roller conveyor shot blasting machine with manganese liner for steel plates H beam pipes bars

The roller conveyor shot blasting machine is a high-efficiency surface treatment equipment that uses shot blasting media (steel shots, steel grit, etc.) to impact the surface of workpieces, combined with a roller conveyor system to realize continuous and automated processing of workpieces. It is widely used in industries such as machinery manufacturing, automotive parts, and steel structures due to its high automation, stable processing quality, and strong adaptability.

If these standard models don’t fit your needs, we can design tailor-made shot blasting machine according to your workpieces.

The core component of the machine is the roller conveyor system, which is composed of multiple groups of driving rollers and driven rollers. It can realize:

• Steady conveying: The rollers drive the workpiece to move at a controllable speed through friction, ensuring that the workpiece is evenly exposed to the shot blasting area without offset or collision.
• Adjustable speed: The conveying speed can be adjusted according to the workpiece size, surface roughness requirements, and shot blasting strength, matching the shot blasting efficiency to achieve the best surface treatment effect.
• Batch processing: It supports continuous feeding and discharging of workpieces, realizing unmanned operation in conjunction with automatic loading and unloading systems, and greatly improving production efficiency.

Equipped with multiple high-power shot blasting turbines (blast wheels), the machine has the following shot blasting capabilities:

• All-round surface coverage: The shot blasting turbines are arranged reasonably (usually on the upper, lower, and side of the conveyor line) to ensure that the shot blasting media can impact all surfaces of the workpiece (including the top, bottom, and sides), eliminating dead angles of treatment.
• Adjustable shot blasting strength: By adjusting the motor power of the shot blasting turbine, the flow rate of the shot blasting media, and the conveying speed of the workpiece, the shot blasting strength can be precisely controlled to meet different surface treatment requirements (such as removing heavy rust, light oxide scale, or just improving surface roughness).
• Cleaning of various surface contaminants: It can effectively remove oxide scale, rust, sand, welding slag, and oil stains on the workpiece surface, and at the same time, it can form a uniform rough surface on the workpiece surface to enhance the adhesion of subsequent coating (painting, spraying) and improve the coating quality and service life.

The machine is equipped with a closed-loop media recycling system, which realizes the reuse of shot blasting media and reduces production costs:

• Media separation: After shot blasting, the mixture of shot blasting media, dust, and debris is collected into the separator. Through screening, air classification, and other technologies, the reusable steel shots/steel grit are separated from the waste debris and dust.
• Dust removal and environmental protection: The supporting dust removal system (bag filter or cartridge filter) can capture more than 99% of the dust generated during the shot blasting process, meeting environmental protection emission standards and avoiding dust pollution to the workshop environment.

The roller conveyor shot blasting machine has good compatibility with workpieces:

• Applicable to flat and long workpieces: It is especially suitable for processing flat, plate-shaped, long strip, and profile workpieces (such as steel plates, H-beams, I-beams, angle steels, etc.). The roller conveyor can stably support and convey workpieces of different widths and lengths.
• Adjustable roller spacing: For small-sized workpieces, the roller spacing can be adjusted or auxiliary baffles can be added to prevent the workpiece from falling; for heavy workpieces, the roller is made of high-strength materials to ensure load-bearing capacity.

The roller conveyor shot blasting machine is widely used in industries that require large-scale, continuous surface treatment of workpieces, and its main application fields are as follows:

• Application scenarios: Surface cleaning and derusting of H-beams, I-beams, steel plates, box beams, and other steel structure components used in bridges, high-rise buildings, and steel workshops.
• Function: Remove oxide scale and rust on the surface of steel structures to ensure the anti-corrosion effect of subsequent painting, and extend the service life of steel structures in harsh environments (such as humid, corrosive).

• Application scenarios: Surface treatment of automotive chassis parts (such as frame beams, axle housings), agricultural machinery frames, and sheet metal parts.
• Function: Clean the surface of the workpiece after welding or casting, remove welding slag and burrs, and improve the surface finish and coating adhesion, which is conducive to the subsequent electrophoresis and painting processes of auto parts.

• Application scenarios: Surface descaling and roughening of metal plates (such as carbon steel plates, aluminum alloy plates) before coating or laminating.
• Function: Form a uniform rough surface on the plate surface, enhance the bonding force between the plate and the coating, and avoid coating peeling and blistering during use.

• Application scenarios: Surface treatment of long strip profiles (such as aluminum profiles, stainless steel profiles) and straight pipes (such as water supply pipes, oil pipelines).
• Function: Remove the oxide film on the surface of profiles and pipelines, improve the surface quality of products, and provide a good base for subsequent processing (such as extrusion, assembly).

• Application scenarios: Surface cleaning and strengthening of aluminum alloy structural parts of aircraft, high-speed rail bogie frames, and rail components.
• Function: Not only remove surface contaminants but also improve the fatigue strength of the workpiece surface through shot peening, enhancing the safety and reliability of key components under high-load operation.