Shot blasting machine for gates and risers (vibratory pass-through shot blasting machine); also known as a shot blasting machine for foundry returns.
Application
The vibratory-conveying shot blasting machine is used to remove surface rust and other impurities from materials such as casting returns.
Features
· High-efficiency, high-power blast wheel offering high abrasive flow rates and quick replacement of wear parts.
· Features a two-stage magnetic separation system that ensures cleaner casting surfaces, reduces dust pollution, and lowers the load on the dust collector, while also extending the service life of wear parts.
· Abrasive-sand separator achieves a separation efficiency of over 99.5%.
· The vibrating blast chamber is lined with imported high-manganese steel plates for long service life.
· Uses a vibrating conveyor system to reduce labor intensity.
· Fully automatic PLC control with fault display and alarms (in Chinese); blast times for different workpieces can be preset, allowing for simple push-button operation.
· Comprehensive and scientifically designed safety protection system.
· High productivity.
This machine is equipped with the HAI Ocean Surge® direct-coupled high-efficiency blast wheel (German design with independent patents, Patent No.: ZL 2015 2 0702933.5).
The blast wheel serves as the core of a shot blasting machine, and its design dictates the overall equipment performance. The HAI Ocean Surge® blast wheel comes as standard for this unit. The H-series blast wheels deliver superior blasting performance. Available in multiple sizes and material options, H blast wheels enable flexible application across diverse manufacturing processes.The casing is lined with curved, multi-layer labyrinth-style sealing plates; the hot zone features a thickness of 70mm, ensuring excellent sealing performance and a uniform distribution of the projected abrasive media over an expanded coverage area. The internal design allows for the adjustment of abrasive trajectories, thereby enhancing blasting efficiency and minimizing self-wear. Additionally, a specialized dynamic design boosts efficiency by 30% compared to standard blast wheels.
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We have delivered over 1,000 sets of hook shot blasting machines for domestic and overseas clients to date, maintaining an industry-leading track record......
A major domestic listed agricultural equipment group has phased out its old-style shot blasting machines over the past two years, switching entirely to crawler-type shot blasting machines developed and manufactured by Qingdao KEEJOO Group; the group now operates a total of 58 such units.....
The various shot blasting machines manufactured by Qingdao KEEJOO Group for European clients are highly acclaimed and well-received!
Introduction to the Components of the Shot Blasting Machine
1Blast wheel
The blast wheel and motor adopt Germany-joint developed high-efficiency HP technology. Compared with conventional old-style blast wheels, this design eliminates multiple friction loss links, lifting motor efficiency by 20%, cutting down fault points and slashing maintenance costs by 50%.
It features a more compact footprint than traditional blast wheels, supports arbitrary installation angle arrangement, and enables far easier inspection and maintenance.
Constant blasting performance is maintained throughout operation, free from inconsistent and fluctuating cleaning quality seen on conventional units.
Blades and all wear-resistant consumables are manufactured in Taiwan via high-chromium investment precision casting, delivering outstanding abrasion resistance. Their service life ranges from 1,200 to 4,000 hours, 3–4 times longer than ordinary casting materials.
Blast wheel impeller: Treated with carburizing wear-resistant alloy. The impeller hub is one-time finished by high-precision CNC machining centers for ultra-high dimensional accuracy, ensuring perfect dynamic balance during high-speed rotation, low vibration, low noise and extended service life.
Equipped with SKF bearings imported from Sweden.
Fitted with genuine Siemens motors.
German Schenck dynamic balancing tester is applied to guarantee precise high-speed dynamic balance of impeller hubs.
2Abrasive flow valve
1. Semi-automatic flow control system for regulating the flow of abrasive media into the blast wheel, featuring manual adjustment of the steel shot flow rate.
2. Fully sealed structural design, featuring a lockable inspection opening and equipped with two bearings.
3. A manual shut-off valve is installed above each flow valve; this can be closed to stop the flow of media from the hopper, thereby facilitating maintenance of the flow valve.
3Blasting chamber
1. The shot blasting chamber is constructed from welded manganese steel.
2. Manganese steel protective plates are installed in the "hot zone" of the chamber—specifically covering three-quarters of the area directly exposed to the blast stream—to prevent steel shot from striking the chamber's outer walls; these plates are suspended for easy installation, removal, and replacement.
3. A three-layer sealing structure is installed at the top to prevent steel shot from leaking out during the blasting process.
4Pneumatic Door AB
1. The shot blasting chamber features a compact structure and a sealed design based on German technology, ensuring that abrasive media does not scatter during operation.
2. The door utilizes an automatic opening and closing mechanism controlled by pneumatic cylinders.
3.Employing specialized processes and technology, the door is more reliable than conventional designs; it resists deformation and maintains its sealing integrity for 20 years—overcoming the performance degradation typical of traditional sealing methods after just six months.
5Automatic Loading System / Automatic Unloading System
1.Charging door
The charging door is constructed from welded steel and features a high-manganese steel protective plate with a labyrinth-style guard design. It is driven by an electric trolley with a link chain (equipped with a safety pin) and includes a detection switch to monitor the door's position.
2. Feeding machine
The charging machine consists of a support frame, a carriage, and a link-chain drive mechanism. Protective plates are mounted on both sides of the frame, with control buttons installed on one side. The frame supports a pivoting arm; when the drive mechanism is activated, the material hopper ascends along the internal channel of the arm. Simultaneously, the arm rotates around its pivot point, causing the hopper—during its ascent and rotation—to tilt toward the cleaner's feed opening and discharge the material into the drum.
A rotary proximity switch is located at the drive shaft end to limit the upper travel limit of the hopper, while a proximity switch signals the completion of the movement once the hopper has descended.
Discharge system
1. An automatic unloading mechanism: Workpieces that have undergone shot blasting are discharged from the blast chamber, fall onto the automatic unloading mechanism, and are then conveyed into a collection bin by a vibration device.
2. An anti-drop, vibration-dampening rubber pad is installed on the unloading mechanism; it effectively prevents impact between the parts and the damping plate, providing excellent protection.
6Sorting system
1. One mesh screen separator is connected to the bucket elevator and mounted above the magnetic separator. Fine materials pass through the screen for filtration and then enter the magnetic separator. Coarse materials and impurities are conveyed by the screen screw conveyor to the rear outlet and discharged through the discharge pipe.
2. It precisely separates qualified intact shot, broken shot and dust to maintain uniform blasting media.
3. All-welded structure equipped with multiple well-designed internal compartments for air flow guiding. A swing-open maintenance door is installed on the front side for regular inspection and maintenance. Air inlets are arranged on the door to supply air for dust classification.
4. Adopts adjustable multi-stage baffles to regulate the uniformity of falling shot curtain.
5. Two stationary magnets are fitted at the upper part and another two at the lower part respectively, which realize fine separation of intact steel shot and fragmented shot, ensuring stable quality of blasting media.
6. A storage bin is connected at the bottom. Sorted qualified shot flows into the bin for storage and cyclic reuse.
7Electrical control cabinet
1.Siemens PLC and touch screen
2. Siemens variable frequency drive (VFD) for speed control
3. Schneider low-voltage electrical components
4. Shot blasting time controller
5. AirTAC pneumatic components
6. Ammeter for flow monitoring
7. 1 lighting fixture
8. Dedicated constant-temperature air conditioning unit (optional)
Standard configuration： |
| 1 | Electrical cabinet: This model comes standard with a cooling fan; air conditioning is available as an option. |
| 2 | Programmable Logic Controller (PLC): Siemens (other brands available as options upon customer request) |
| 3 | Touchscreen: Siemens (other brands available as options upon customer request) |
| 4 | Variable Frequency Drive (VFD): Inovance (China) — (Specific brands can be designated upon customer request; we recommend our domestic brand, as its quality is on par with or superior to Siemens.) |
| 5 | Power supply voltage: AC 380V, three-phase five-wire system |
| 6 | Low-voltage electrical components: Schneider (other brands available upon customer request) |
| 7 | Pneumatic components: ARITAC series (other brands available upon customer request) |
| 8 | Wires and cables |
| 9 | Qingdao KEEJOO Group can also customize various non-standard shot blasting machines according to your requirem |
Qingdao KEEJOO Group comprises three subsidiaries and an international business division, standing as a leading Asian manufacturer of high-end shot blasting and peening machinery, as well as environmental protection equipment. The company has introduced and developed over 100 types of shot blasting and peening machines for cleaning and surface strengthening; more than 20 of these products have filled gaps in the domestic market. Its products are utilized by renowned enterprises such as ThyssenKrupp, Siemens, FAW-Volkswagen, Cummins Engine, Dongfeng Motor, Weichai Power, Sinotruk (Jinan), China High-Speed Rail, Bombardier, Chery Automobile, North Benz, Hitachi Nuclear, Sany Heavy Industry, Fuji Heavy Industries, Tangshan Gear, Aisin (Japan), Alstom (France), Doosan (South Korea), and Caterpillar (USA). With exports reaching 49 countries—including Spain, France, the USA, South Korea, Japan, Singapore, Australia, and Russia—the company enjoys an excellent global and domestic reputation.
In recent years, by introducing and assimilating advanced technologies from companies such as Germany's AGTOS, KEEJOO has achieved a world-class level in product design. The company's high-efficiency, direct-drive shot blasting wheel—representing the best of Asian technology in this field—has garnered praise and recommendations from customers in Europe and the Americas.
The company was among the first in China's casting machinery industry to obtain ISO 9001, German TÜV, EU CE, French BV, and North American FCC certifications, as well as import-export rights. By introducing and further optimizing technologies from Germany, the United States, and other regions, the company has enhanced product performance and accelerated the phase-out of outdated technologies, earning recognition from new and existing customers worldwide.
Next step？
Spare Parts and Consumables
We provide high-quality replacement parts with extended service lives. As a major supplier of spare parts in the industry, we offer rapid global delivery, helping you avoid the need for large inventories and preventing production downtime.
Equipment Upgrade
We will keep you updated on the latest technology upgrades so you can decide whether to incorporate them into your equipment's routine maintenance to ensure optimal service life.
Equipment Modernization and Upgrading
