Recently, a QG series steel pipe internal wall shot blasting machine customized for a Canadian 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 North American market and provides the customer with a professional internal wall cleaning solution for high-quality pipeline production.
This customer is a Canadian company specializing in the manufacture of oil and gas pipelines and industrial fluid transportation pipelines. Their products are widely used in oil and gas field development, urban pipeline network construction, and industrial fluid transportation. With the market's increasing demands for pipeline internal wall cleanliness and corrosion resistance, the customer has placed higher requirements on steel pipe internal wall cleaning processes.
Before introducing a specific case, let's briefly explain the applicable workpiece range of the QG series steel pipe internal wall shot blasting machine to help understand why the customer chose this model.
The steel pipe internal wall shot blasting machine uses a special spray gun or blasting head device to propel shot at high speed onto the inner wall surface of the steel pipe, effectively removing oxide scale, rust, welding slag, and other deposits. This professional internal cleaning method is particularly suitable for the following types of steel pipes:
**Oil and Gas Pipelines:** Oil and gas pipelines require a high degree of internal cleanliness. Shot blasting removes oxide scale and rust, providing a good adhesion base for the internal anti-corrosion coating.
**Fluid Transportation Pipelines:** In the chemical, food, and pharmaceutical industries, the cleanliness of the internal walls of fluid transportation pipelines directly affects product quality and pipeline lifespan.
**Boiler Tubes and Heat Exchanger Tubes:** Oxide scale on the inner walls of boiler tubes and heat exchanger tubes affects heat exchange efficiency. Shot blasting restores the cleanliness of the inner walls.
**Precision Pipes:** Hydraulic pipes, precision pipes, and other pipe materials that require high-quality internal surfaces.
**Structural Pipes:** Steel pipes used in building structures, bridge structures, etc., benefit from improved overall corrosion resistance after internal cleaning.
The client's existing equipment was an external shot blasting machine, capable only of treating the outer surface of steel pipes. Internal cleaning relied on chemical pickling, which presented the following problems in actual use:
**Inadequate Internal Cleaning:** Chemical pickling failed to thoroughly remove oxide scale and rust from the inner wall, affecting the adhesion of the internal anti-corrosion coating.
**High Environmental Pressure:** Pickling wastewater treatment was costly, creating significant environmental pressure and failing to meet increasingly stringent environmental regulations.
**Low Efficiency:** Pickling had a long cycle time, occupied a large area, and could not be integrated with the production line for continuous operation.
The client desired a new machine capable of mechanically cleaning the inner wall of steel pipes, replacing chemical pickling, improving cleaning quality while meeting environmental requirements.
Based on the client's steel pipe specifications and production needs, our technical team customized a QG series steel pipe internal shot blasting machine for them. The main configuration is as follows:
**Professional Internal Shot Blasting System:** Utilizing a specially designed internal shot blasting device, the machine propels shot at high speed onto the inner surface of the steel pipe through a spray gun. The device is adjustable according to the inner diameter of the steel pipe, adapting to the cleaning of different specifications.
**Steel Pipe Rotation and Propulsion System** The steel pipe rotates and propels forward at a uniform speed during cleaning, ensuring even impact on all parts of the inner wall and eliminating blind spots.
**Automatic Feeding and Discharging System** Equipped with an automatic feeding and discharging device, enabling automatic loading and unloading of steel pipes, reducing manual operation and improving continuous operation capability.
**Shot Recycling System** A built-in shot recycling device automatically recycles intact shot, while broken shot and dust are separated and discharged, reducing abrasive consumption.
**High-Efficiency Dust Removal System** Equipped with a high-efficiency dust collector, dust is collected promptly during operation, and emission concentrations meet local Canadian environmental standards.
After the equipment was put into operation, the customer's steel pipe inner wall cleaning quality significantly improved. Oxide scale and rust on the inner wall were thoroughly removed, achieving a surface cleanliness level of Sa2.5, providing a good adhesion base for the internal anti-corrosion coating.
Chemical pickling has been completely replaced, significantly reducing wastewater treatment costs and alleviating environmental pressure. Internal shot blasting cleaning is now integrated with the production line, resulting in a significantly shorter production cycle compared to pickling.
The client's technical manager stated, "This QG series steel pipe internal shot blasting machine has solved our long-standing problem of internal pipe cleaning. The cleaning effect is stable and reliable, operation is simple, and maintenance is not complicated; it has completely replaced the previous pickling process."
The QG series steel pipe internal shot blasting machine delivered this time, through its professional internal shot blasting system, steel pipe rotation and propulsion device, and automatic loading and unloading configuration, helped the client upgrade their steel pipe internal wall cleaning process, replacing chemical pickling with mechanical shot blasting, thus improving cleaning quality and environmental protection.
This case also further validates the professional value of steel pipe internal shot blasting machines in the manufacturing of high-quality steel pipes for oil and gas pipelines, fluid transportation pipelines, and other applications. Our company will continue to monitor the equipment's operation and provide timely technical support and after-sales guarantee for our clients.
A: The QG series steel pipe internal wall shot blasting machine is suitable for cleaning the internal surfaces of various steel pipes, including oil and gas pipelines, fluid transportation pipelines, boiler tubes, heat exchanger tubes, hydraulic tubes, precision tubes, and structural tubes. It effectively removes oxide scale, rust, and welding slag from the inner wall.
A: The QG series steel pipe internal wall shot blasting machine can be customized according to the customer's steel pipe diameter range. It can typically handle steel pipes with an inner diameter from 50mm to 800mm. Specific specifications can be confirmed with our technical team during the selection process.
**A:** After internal shot blasting, the oxide scale and rust on the inner wall of the steel pipe are completely removed, resulting in a uniform metallic luster and a cleanliness level reaching Sa2.5, providing a good adhesion base for the internal anti-corrosion coating.
**A:** Yes. The QG series internal shot blasting machine for steel pipes can be combined with the external shot blasting machine to form a synchronous internal and external wall cleaning production line, completing the full surface cleaning of the inner and outer walls of the steel pipe in a single pass, resulting in higher efficiency.
**A:** The QG series internal shot blasting machine for steel pipes requires a flat and solid ground foundation, and is equipped with a corresponding power supply and compressed air interface. The length of the equipment is customized according to the steel pipe specifications and production line layout. Specific installation conditions can be confirmed with our technical team during the selection process.
**A:** Yes. Our company can customize the shot blasting device specifications, conveyor system configuration, automatic loading and unloading scheme, and control system functions according to the steel pipe diameter, length, production requirements, and site conditions.
A: The QG series steel pipe internal wall 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 QG series steel pipe internal wall shot blasting machine, please contact our technical team.
