This utility model relates to a specialized sandblasting device designed for the treatment and strengthening of steel pipe inner surfaces. The equipment adopts a dedicated spray gun structure that enables efficient sandblasting inside steel pipes. By projecting abrasive materials onto the inner wall, the system effectively removes contaminants such as oil residues, corrosion rust, and old coatings including black paint. After treatment, the internal surface of the steel pipe presents a clean metallic appearance with increased surface roughness, which significantly improves the adhesion performance for subsequent coating, spraying, or painting processes.
The shot blasting machine is specifically designed to meet the operational and technical requirements of Party A for internal steel pipe cleaning and surface preparation. It serves as specialized equipment for sandblasting operations involving steel pipe inner walls.
The system is capable of processing multiple pipes simultaneously to improve operational efficiency. During operation, the machine can clean the outer surfaces of up to six steel pipes at the same time, while the inner wall sandblasting process is performed individually for each pipe to ensure thorough and uniform treatment.
This design ensures high cleaning efficiency, stable performance, and reliable surface treatment quality for steel pipe manufacturing and maintenance applications.
High-Efficiency Steel Pipe Inner Wall Sand Blasting System
The machine features an advanced engineering design, a well-structured layout, stable operation, and high working efficiency. By applying the sandblasting process, it effectively removes rust, oxide scale, and other contaminants from the inner surface of steel pipes, revealing the natural metallic finish of the material. This process prepares the pipe surface for further operations such as pipe drawing and pipe expanding.
At the same time, the cleaning process helps reduce internal stress within the workpieces and significantly improves the bonding performance for inner plastic lining, internal and external plastic coatings, and galvanizing layers. The improved surface condition enhances coating adhesion, increases resistance to coating cracking, and strengthens the overall durability of the protective layer.
Additionally, the machine contributes to better corrosion resistance of metal components and mechanical products, while also improving the fatigue strength of steel materials. By optimizing the surface treatment process of metal profiles, it helps extend the service life of the workpieces and ensures higher surface and internal quality standards.
PROJECT
QGN40-200
QGN200-600
QGN600-1200
Clean Length of Workpiece (mm)
2000–14000
2000–14000
2000–14000
Spray Gun Movement Speed (mm)
1500–2500
1500–2500
1500–2500
Sanding Amount (kg/h)
2000
2000
2000
Initial Loading Quantity (kg/h)
4500
4500
4500
Air Volume (m³)
3000
3000
3000
Ventilation Volume Total Power (kW)
35
55
160
Main Product
Company Profile
Mastering the Art of Shot Blasting Solutions Pioneering Expertise: We are a leading manufacturer specializing in automated shot blasting machine and surface treatment equipment for steel pipes. With over 20 years of experience in manufacturing shot blasting machines, currently we are China's sole manufacturer of automated shot blasting machines for steel pipes, as well as inner and outer wall shot blasting machines for steel pipe, inner and outer wall sandblasting machines for steel pipe, and inner and outer grinding machine for steel pipes etc. We provide complete solutions for surface cleaning, rust removal, and coating preparation.
Comprehensive Product Range: We offer a full spectrum of solutions—mixing, cleaning, and dust collection equipment—with nearly 20 different models designed to meet diverse industrial needs. Our products are trusted by customers both domestically and internationally.
Internationally Certified Quality: Our operations are certified under ISO 9001:2015 etc, possesses strong R&D capabilities and have been granted multiple patents, guaranteeing that our products consistently meet the highest international standards for quality and reliability.
Our company has completed the technical documentation review (UDEM Machinery Directive Attestation of Conformity) in accordance with the requirements of the EU Machinery Directive 2006/42/EC. The product complies with the related standards required for CE certification (EN ISO 12100:2010, EN 60204-1:2018).
Global-Ready Logistics: Strategically located with immediate access to a major seaport, international airport, and highway networks, we ensure fast and cost-effective delivery to clients across the globe.
Customer-Centric Philosophy: Guided by the principle of 'Quality First, Customer Foremost', we are dedicated to providing superior products and unparalleled service, building lasting partnerships based on trust and mutual success. We are actively expanding our international presence and look forward to providing world-class shot blasting machine and service to clients worldwide.
Certifications
Customer Group Photo
Exhibition
Packaging & Shipping
Frequently Asked Questions (FAQ)
Q: What kind of workpieces can your shot blasting machine handle?
Handles steel plates, profile steel, castings, structural parts, hardware, aluminum profiles, and supports customized models for special shapes and oversized workpieces.
Q: What are the differences between different types of shot blasting machines (crawler/hook/pass-through) and how to choose?
Crawler type suits small parts in batches; hook type for large/heavy parts; through type for assembly line operation, recommended based on size, output, and process needs.
Q: How long is the service life of your shot blasting machine, what are the consumable parts, and is the replacement cost high?
Design life is 8-10 years. Consumables include blaster blades, sleeves, and plates, made of durable high-chromium alloy, with low replacement cost and easy operation.
Q: Do you support customised non-standard shot blasting machines?
Yes, the production plan is customizable based on workpiece size, capacity needs, site conditions, and automation.
Q: Does the environmental protection standards of the shot blasting machine meet the requirements? Will it cause dust pollution?
Equipped with a pulse cloth bag dust collector. Dust emission is below national standards; noise and dust meet standards. Environmental protection reports available.
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