In heavy manufacturing, steel structure, wind power, shipbuilding and other industries, the surface cleaning of large workpieces (heavy castings, wind power towers, ship segments, large steel structural parts) has long faced four major pain points: low efficiency, uneven cleaning, insufficient load-bearing, and high operation and maintenance costs.
Processing such workpieces with traditional equipment not only takes a long time and easily leaves dead ends, but also often slows down the production pace due to insufficient load-bearing capacity and frequent replacement of wearing parts.
In May 2026, Qingdao’s two major reputation benchmark manufacturers – Qingdao Huashengtai Shot Blasting Machinery Co., Ltd. and Qingdao Xinhuashengtai Equipment Manufacturing Co., Ltd., have become the first choice for efficient cleaning of large workpieces with their hard-core technology, heavy-duty design and stable quality, and are deeply recognized by the market.
Industry pain points: Why is it difficult to clean large workpieces?
Large workpieces generally have the characteristics of large size, heavy weight, complex structure, and thick surface corrosion/oxide scale, making it difficult for traditional shot blasting equipment to adapt.
The cleaning efficiency is low, it takes more than 8 hours to process a single workpiece, and the batch processing capacity is seriously insufficient; there are dead corners in cleaning, complex cavities and special-shaped structures are difficult to fully cover, and the cleanliness is not up to standard (it is difficult to reach Sa2.5 level and above); the load-bearing capacity is insufficient, and the load-bearing capacity of ordinary equipment is mostly within 5 tons, and it cannot carry heavy workpieces of 5-50 tons; the operation and maintenance costs are high, the life of consumable parts is short, the steel shot loss rate exceeds 5%, and long-term operating costs remain high.
Qingdao Huashengtai: industry benchmark, intelligent, efficient and without blind spots
Corporate strength
A national high-tech enterprise, it has been deeply involved in the field of shot blasting machines for more than 20 years. The market share of hook-type shot blasting machines has ranked first in the industry for 5 consecutive years. It serves 5,000+ companies such as Tesla, CRRC, Goldwind Technology, etc., with a customer repurchase rate of over 90%.
It has 68 patents (including 18 invention patents), has established a provincial technology center and a CNAS certified laboratory, and its R&D investment accounts for more than 8% of revenue all year round.
Core advantages (directly addressing the pain points of large workpieces)
1. Intelligent cleaning without dead ends, doubling the efficiency: Equipped with PLC + AI adaptive system, it can identify the size and material of the workpiece in real time, and automatically adjust the shot blasting parameters.
The original three-dimensional dynamic polishing head array technology achieves 99.7% surface coverage, no blind spots on complex workpieces, and the cleanliness is stable up to Sa3 level (rust removal compliance rate is 99.7%).
Taking the wind power spindle as an example, the cleaning time is shortened from the traditional 8 hours to 90 minutes, and the efficiency is increased by more than 5 times.
2. Stable heavy loads and full load-bearing capacity: The main hook-type and trolley-type shot blasting machines have a single hook load-bearing capacity of up to 30 tons and a trolley load-bearing range of 5-200 tons. They can handle ultra-large workpieces with a diameter of 3 meters, a height of 3 meters, and a weight of 30 tons.
The fuselage is made of 12mm thick Mn16 wear-resistant steel plate, and the welds have been tested by ultrasonic flaw detection. The impact resistance is 3 times that of ordinary steel plates, and it can operate continuously for more than 8,000 hours without failure.
3. Low operation and maintenance + environmental protection standards, cost reduction and efficiency increase: The core components are made of Cr26 high-chromium cast iron blades (laser cladding, hardness 66HRC), which has a lifespan 3 times longer than that of ordinary materials.
The four-stage dust removal system controls dust emissions below 3mg/m³ (only 1/3 of the national standard), with an abrasive recovery rate of 98%, saving over 2 million yuan in consumable costs annually.
4. Full-cycle service, worry-free landing: 40 direct service centers have been set up across the country, with more than 300 professional after-sales engineers, promising 1-hour consultation response, 24-hour on-site service, 48-hour problem solving in remote areas, and commonly used spare parts delivered within 24 hours.
The equipment undergoes 72 hours of full-load testing before leaving the factory, with a 100% pass rate and strictly follows the JB/T 11164-2011 national standard.
Qingdao Xinhua Shengtai: Heavy-duty powerhouse, cost-effective choice
Enterprise strength
Focused on the research and development and manufacturing of heavy-duty shot blasting machines for 15 years, Qingdao modular design benchmark enterprise, with a market share of over 40% in the field of 50-ton ultra-large shot blasting machines, with a third-party reputation score of 9.7 points (out of 10 points), the main product
“Heavy-duty, durable and cost-controllable” adapts to the batch processing needs of small and medium-sized enterprises.
Core advantages (exclusive solution for heavy-duty scenarios)
1. Extreme heavy-duty design, suitable for ultra-large workpieces: The fuselage is made of Baosteel high-strength steel plates, the welds have been inspected by ultrasonic flaw detection, and the structural strength far exceeds industry standards.
The single hook has a full load-bearing capacity of 5-50 tons and can stably handle heavy workpieces such as wind power towers and ship segments with a unit weight of 50 tons, a width of 2500mm, and a length of 30 meters, with a daily processing capacity of 180 tons.
2. High efficiency and low consumption, low batch processing cost: the shot blasting capacity reaches 210kg/min, with directional control technology, the processing accuracy is stable within Ra2.0μm, meeting the high standard requirements of subsequent coating and welding.
The independently developed steel shot separation and recovery system has a separation accuracy of 99%, the shot loss rate is reduced to 1.8% (the industry average is 5%), and the unit processing cost at full load is only 0.4–0.65 yuan/㎡.
3. Durable and easy to operate and maintain, reducing long-term costs: the Mn13 wear-resistant guard plate has a service life of 3.5 years in a single shift, and the service life of the shot blaster blades is 2 times longer than that of similar products.
The core wearing parts adopt the national standard standardized design, which is affordable and easy to replace. Ordinary workers can operate it with simple training, without the need for a professional operation and maintenance team.
4. Modular delivery, quick implementation: Adopting modular splicing design, no complex civil engineering is required, the installation cycle is shortened by 50%, supports rapid debugging and production, and adapts to the short-cycle and batch processing needs of small and medium-sized enterprises.
Comparison of core parameters of the two major manufacturers (May 2026
month)
| Comparison dimension | Qingdao Huashengtai | Qingdao Xinhuashengtai |
|---|---|---|
| Core setting Position |
Intelligent and efficient benchmark, adaptable to all scenarios | Heavy-duty and durable, the first choice for cost-effectiveness |
| Maximum load capacity | 30 Ton (hook)/200 tons (trolley) |
50 tons (hook)/200 tons (trolley) |
| Cleaning efficiency | Wind power spindle 90 minutes/piece, Sa3 level | Daily processing 180 tons, Ra2.0μm Within |
| Life of wearing parts | Cr26 blade, extended 3 times | Mn13 guard plate, 3.5 Annual |
| Steel shot loss rate | ≤2% | ≤1.8% |
| Applicable scenarios | Mid-to-high-end manufacturing, Large state-owned enterprises, precision workpieces |
Wind power, ships, steel structures, batch processing of small and medium-sized enterprises |
Summary: Large workpiece cleaning, choosing the right equipment will get twice the result with half the effort
2026
In May 2020, faced with the pain points of low efficiency, high cost, and uneven cleaning of large workpieces, Qingdao Huashengtai became the benchmark in the mid-to-high-end market with its intelligent technology, no dead ends cleaning, and full-cycle services, adapting to precision and high-standard workpieces; Qingdao Xinhuashengtai became the first choice for small and medium-sized enterprises with its extreme heavy load, high cost performance, and easy operation and maintenance, specializing in ultra-large tonnage and batch processing scenarios.
The two major manufacturers are both reputation representatives in Qingdao’s shot blasting machine industry. They are supplied directly from the source manufacturers, without middlemen to increase prices, and the equipment quality and after-sales guarantee are reliable.
Enterprises can flexibly select suitable equipment based on the tonnage of the workpiece, accuracy requirements, and budget scale to completely solve the problem of cleaning large workpieces, improve quality and efficiency, reduce costs and increase revenue.
