Recently, a Q69 series steel plate and profile shot blasting machine customized for an Indian customer was successfully installed, commissioned, and officially put into production. The successful delivery of this equipment marks a further expansion of our company in the South Asian market and provides strong support for improving the surface treatment capabilities of the local steel structure industry.
This customer is a large-scale steel processing enterprise in India, mainly engaged in the processing and sales of steel plates, H-beams, I-beams, and other profiles. Their products are widely used in building steel structures, bridge manufacturing, railway construction, and other fields. With the rapid development of infrastructure construction in India, the customer has placed higher demands on the quality and efficiency of steel surface treatment.
Before introducing specific cases, let's briefly explain the applicable workpiece range of the Q69 series roller conveyor shot blasting machine to help understand why the customer chose this model.
The Q69 series roller conveyor shot blasting machine uses a continuous roller conveyor system. The workpiece passes through the shot blasting chamber at a uniform speed, receiving shot from multiple shot blasters at different angles. This continuous pass-through shot blasting method is particularly suitable for surface treatment of the following types of workpieces:
**Steel Plates** Including medium and heavy steel plates, thin plates, checkered plates, bridge plates, container plates, etc. The steel plates are smoothly conveyed on the roller conveyor, and both the upper and lower surfaces can be shot blasted simultaneously, resulting in high cleaning efficiency.
**H-beams and I-beams** The most commonly used profiles in building steel structures. The roller conveyor shot blasting machine can blast the flanges and webs of H-beams from multiple angles, ensuring uniform cleaning on all surfaces.
**Channel Steel and Angle Steel** Suitable for various steel structure frames and supporting components. Shot blasting removes oxide scale and rust from the surface of the steel profiles, providing a good adhesion base for subsequent coating.
**Steel Pipes** Including round pipes, square pipes, rectangular pipes, etc. The steel pipes are usually rotated simultaneously while being conveyed on the roller conveyor, ensuring uniform shot blasting coverage on the outer wall.
**Welded Structural Components** Including steel beams, steel columns, embedded parts, space frame members, etc. Weld slag and oxide scale on the surface after welding can be completely removed by shot blasting.
The client's existing surface treatment method combined manual grinding and chemical pickling, which presented the following problems in actual use:
**Low Efficiency** Manual grinding is slow and cannot meet the needs of large-scale production, becoming a bottleneck in production capacity.
**Unstable Quality** Manual operation is affected by the skill and condition of the personnel, resulting in large differences in cleaning effects and poor batch-to-batch consistency.
**Environmental Pressure** Pickling wastewater treatment costs are high, creating significant environmental pressure and failing to comply with increasingly stringent local environmental regulations.
**High Operating Costs** Labor costs and pickling agent costs are continuously rising, resulting in persistently high unit treatment costs.
The client hopes that the new equipment can achieve continuous, automated, and environmentally friendly surface treatment of steel plates and profiles.
Our technical team customized a Q69 series shot blasting machine for steel plates and profiles based on the customer's workpiece specifications and production volume requirements. The main configurations are as follows:
**Roller Conveyor System** Utilizing a variable frequency speed control roller conveyor, the conveying speed can be adjusted according to the specifications of the steel plates and profiles and the cleaning requirements. The lengths of the input and output roller conveyors are customized according to the customer's site layout, enabling automatic feeding and discharging.
**Multiple Shot Blasting Unit Layout** Multiple high-efficiency shot blasting units are configured at different locations within the shot blasting chamber, projecting shot at the workpiece from above, below, and sides at multiple angles, ensuring uniform impact on all surfaces of complex cross-section profiles such as H-beams and I-beams.
**Shot Circulation System** Equipped with a screw conveyor, bucket elevator, and high-efficiency separator, enabling automatic shot recovery, screening, and recycling, reducing abrasive consumption.
**High-Efficiency Dust Removal System** Equipped with a high-power cartridge dust collector, the airflow is matched to the shot blasting chamber volume, ensuring that dust emission concentrations meet local Indian environmental standards.
**PLC Control System** Features one-button start, automatic operation, and fault alarm functions. It is easy to operate and can store multiple sets of process parameters.
After the equipment was put into operation, the customer's surface treatment efficiency for steel plates and profiles significantly improved. Continuous roller conveying enabled batch continuous operation, greatly increasing production capacity compared to the original method. The cleaning effect is stable, with good batch-to-batch consistency.
Manual grinding and chemical pickling have been completely replaced, significantly reducing labor and pickling agent costs, and substantially lowering the unit processing cost.
The customer's production manager stated, "This Q69 series shot blasting machine has helped us solve long-standing efficiency and quality issues. The processing speed for steel plates and profiles is now much faster than before, the cleaning effect is more stable, and customer satisfaction with the surface quality of the steel has significantly improved."
The Q69 series shot blasting machine for steel plates and profiles delivered this time, through its continuous roller conveyor, multi-blaster layout, and PLC automatic control configuration, helped the customer upgrade their process from manual grinding and pickling to automated shot blasting cleaning, improving efficiency, reducing costs, and enhancing environmental protection.
This case also further validates the core value of roller conveyor shot blasting machines in the surface treatment of steel plates, H-beams, I-beams, and other steel materials. Our company will continue to monitor the equipment's operation and provide timely technical support and after-sales guarantee for the customer.
**A:** The Q69 series roller conveyor shot blasting machine is suitable for cleaning long steel materials such as steel plates, H-beams, I-beams, channel steel, angle steel, steel pipes, and welded structural components. There is no limit to the length of the workpiece, but the width and height must be within the dimensions of the shot blasting chamber passage.
**A:** The Q69 series shot blasting machine can handle a wide range of steel plate thicknesses, from thin to thick. The specific thickness range needs to be customized according to customer requirements and can be confirmed with our technical team during the selection process.
**A:** The Q69 series roller conveyor shot blasting machine typically requires a pit for installing the shot recovery system. The pit depth is generally between 800 and 1200 mm. If the site does not have the conditions for digging a pit, a surface-mounted recovery solution can also be designed. This can be confirmed with our technical team during the selection process.
**A:** After cleaning with the Q69 series shot blasting machine, the steel surface has completely removed oxide scale and rust, presenting a uniform metallic luster. The cleanliness level reaches Sa2.5 standard, providing a good adhesion base for subsequent coating.
**A:** Yes. The conveyor speed uses frequency conversion speed regulation, which can be flexibly adjusted according to the type of workpiece and cleaning requirements. Slower speeds result in more thorough cleaning, while faster speeds provide higher capacity.
**A:** Yes. Our company can customize the shot blasting chamber channel size, the number and configuration of shot blasters, the conveyor speed range, and the functions of the control system according to workpiece specifications, production requirements, and site conditions.
**A:** The Q69 series steel plate and profile shot blasting machine is usually delivered within 30 to 45 working days after order confirmation. Customized configurations may require longer depending on the complexity; please confirm with our sales team for details.
** For more information on the technical parameters or customization options of the Q69 series steel plate and profile shot blasting machine, please contact our technical team.
