Product OverviewThe inclined drum shot blasting machine is a new model manufactured by our company, incorporating advanced technology from German firms. It features our company'
The inclined drum shot blasting machine is a new model manufactured by our company, incorporating advanced technology from German firms. It features our company's unique drum oscillation mechanism; during the blasting process, the drum not only rotates but also oscillates up and down, ensuring the workpieces inside are thoroughly agitated to achieve uniform cleaning results.
Applications
This machine is designed to clean workpieces prone to tumbling or falling, non-fragile parts resistant to impact damage, and castings, forgings, or weldments with shallow cavities, effectively removing surface sand and scale. It features PLC control and a high level of automation, allowing for either standalone operation or integration into a production line.
Featuring a unique drum oscillation mechanism, the drum not only rotates but also oscillates up and down during the shot blasting process. Consequently, the parts inside the drum are thoroughly agitated, ensuring uniform cleaning results.
Advantage 1: Efficient and uniform cleaning results.
Utilizing our company's unique drum-rocking mechanism, the drum not only rotates but also oscillates vertically during the shot blasting process. This ensures that the parts inside are thoroughly agitated without exception and that the steel shot is projected evenly, resulting in uniform processing.
Advantage 2: Capable of processing thin, small, and special parts.
The blast chamber features a simple design capable of cleaning standard castings and forgings, while also allowing for the damage-free processing of thin, intricate, or specialized parts.
Advantage 3: Simple and accurate loading and unloading.
Due to automatic and smooth movement, the product will not be scratched and can be put in and discharged gently and completely, making it easy to operate and manage.
Advantage 4: Simple maintenance
The drum and machine body feature a simple design, thereby reducing the number of wear parts (to half that of older models) and saving time and costs associated with maintenance.
Delivers efficient and uniform cleaning results; capable of processing thin, small, and specially shaped parts; features simple and precise loading and unloading; and requires minimal maintenance.
Uses and Features of Tilting Drum Machines
The tilting drum shot blasting machine is one of the standard cleaning equipment models recently developed by our company. It is designed to clean workpieces that can easily tumble, non-brittle parts resistant to impact damage, and castings, forgings, or welded components with shallow cavities, effectively removing surface sand and scale. The machine features Siemens PLC control and a high level of automation, allowing it to operate either as a standalone unit or as part of an integrated production line.
Compared to crawler-type shot blasting machines, this equipment delivers more uniform blasting results and offers greater energy efficiency. The inclined drum shot blasting machines manufactured by the company for clients such as Xi'an Aerospace, Ganzhou Getrag, ThyssenKrupp, Suzuki (Japan), and GM (USA) have been highly acclaimed.
CND-10、CND-I、CND-II This is a high-efficiency drum-type cleaning machine independently developed by our company. It features a high degree of automation and delivers excellent cleaning results, capable of operating either as a standalone unit or as part of an integrated production line. Because there are no moving parts relative to the workpieces within the tumbling zone, the design inherently eliminates issues common to traditional crawler-type shot blasting machines (such as the 32-series rubber crawler or GN-series metal crawler models)—specifically workpiece jamming, excessive wear on moving components (links, pins, track plates, sprockets, etc.), and frequent sudden failures like snapped links or cracked gearboxes caused by jams.
Years of practical use by numerous customers demonstrate that, compared to tumble-belt shot blasting machines, the tilting drum shot blasting machine incurs only one-fifth of the operating costs and requires one-tenth of the maintenance effort, making it the next-generation successor to the tumble-belt type.
CND-10F Tumble-Belt Shot Blasting Machine Manufactured for Kyowa (Japan)
CND-II type：Total Loading Capacity 400-1400Kg（CND-II Tilting Drum Shot Blasting Machine, Supplied to Hansgrohe – The World’s Top Sanitary Ware Brand from Germany）
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 is the heart of a shot blasting machine, and its design determines the performance of the entire system. The HAI Pengpai® blast wheel comes as standard equipment, delivering superior blasting performance. Available in a variety of sizes and materials, the H-series blast wheel ensures flexibility across diverse manufacturing processes. Its key advantages include enhanced blasting performance, reduced abrasive consumption, significantly extended equipment uptime, and effective noise reduction.
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.
Selected Cases of KEEJOO Roller Conveyor Steel Shot Blasting Machines
Tumblast Shot Blasting Machine Manufactured for Cummins Engine Company
Hanger Tumblast Shot Blasting Machine for Doosan Heavy Industries
Hanger Type Shot Blasting Machine Manufactured for Komatsu Shantui
Continuous Tumblast Pass-through Shot Blasting Machine Manufactured for Shandong Construction Machinery Factory
Large Tumblast Shot Blasting Machine Manufactured for Caterpillar, USA
Tumblast Shot Blasting Machine for Fan Parts Manufactured for Willet Colette
Special Large Nuclear Power Tumblast Shot Blasting Machine Manufactured for Shentong Valve
We have delivered more than 1,000 sets of tumblast shot blasting machines to domestic and overseas clients to date, ranking far ahead in the industry......
A major listed domestic agricultural equipment manufacturer has phased out its old-style shot blasting machines in the past two years and fully adopted tumblast shot blasting machines independently developed and produced by Qingdao KEEJOO Group, with a total of 26 units installed so far.......
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 no steel shot escapes 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 and resistant to deformation than conventional designs, maintaining an effective seal for 20 years—surpassing traditional sealing methods that typically degrade after 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. A mesh screen separator is connected to the elevator and positioned above the magnetic separator; fine material passes through the screen into the magnetic separator, while coarse material and impurities are conveyed by a spiral mechanism along the screen to the discharge port at the rear.
2. It is designed to finely separate usable shot, broken shot, and dust, ensuring the uniformity of the shot media.
3.Featuring a welded structure, the interior contains multiple carefully designed compartments for airflow guidance. An access door on the front allows for routine inspection and maintenance; this door is equipped with an air inlet to provide the necessary airflow for dust separation.
4. An adjustable multi-vane baffle structure is used to regulate the uniformity of the falling abrasive curtain.
5. Stationary magnets installed at both the top and bottom enable the fine separation of usable shot from broken steel shot, ensuring the consistency of the blast media.
6. A storage hopper is connected at the bottom; after separation, the usable shot flows into the hopper for storage and subsequent 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 requirements.
Specifications for the CND-II Tilting Drum Shot Blasting Machine Manufactured for SKF (Sweden)
No.
Item
QTY
Indicator
Parameter
1.
Workpiece being processed
Clean return furnace materials such as risers and overflow bars from electric furnace batching.
as well as various castings and weldments within the allowable size range
Max Single Workpiece Weight： 40 kg
Max Single Workpiece Size (Length) 500mm
2.
Cleaning Requirements
Reveal original metallic color; surface roughness Ra≤25um。
3.
Productivity
≮6T/h
4.
Blast wheel
1
Model：QGKT180-4RK
Blasting amount：480 kg/min Ejection velocity：85 m/s
Impeller Dynamic Balance Test：≤18 N.mm
Power：30 Kw
5.
Shot Media Used
S460 to S550 (cast steel alloy shot) HRC=40—45
6.
Initial Shot Loading Volume
～2 t
7.
Cleaning Drum
1
Loading Capacity：0.6 m3
Dimension (Diameter)：Φ1500 mm
Max. Loading Capacity：1500 kg
Rotary Drive Reducer Power 2.2KW*2
8.
Bucket Lift Tilt Unit
1
Adopts automatic feeding with a loading capacity of approximately 1.5 tons; Maximum Lifting Height 3.3m
Equipped with a 2.0T electric chain hoist; hoisting speed: 3 m/min, motor power: 3.7 kW.
Bucket lifting time: 32 s, maximum bucket loading capacity: 1.5 T.
9.
Bucket Elevator
1
Lifting Capacity：40 t/h
Power ：4Kw
10.
Vibrating Conveyor
1
Mptor power：1.5Kw
Conveying capacity :8t/h
11.
Separator
1
Separation amount：40 t／h
Air velocity in the separation zone：4～5 m／s
Waste Content After Separation：≤1%
Qualified Shot Content in Waste：≤1
12.
Screw conveyor
1
Conveying Capacity：40T/h
Reducer Power：3KW
13.
Hydraulic system
1
Operating pressure: 12 MPa
Hydraulic station motor power: 5.5 kW
Flow rate: 14.7 L/min
14.
Shot Control System
1
Model：QM Pneumatic gate valve
Max flow rate：500 kg/min
15.
Dust removal system
1
Total airflow: approx. 8,000 m³/h
Cleaning chamber: approx. 5,000 m³/h
Separator: approx. 3,000 m³/h
Fan model: 4-72-4.5A (7.5 kW)
16.
Dust emission concentration
≤50 mg/m3
17.
Equipment noise
≤85 dB
18.
Total Power
about 60KW
19.
Compressor control consumption
0.5 m3/min 0.5-0.6MPa
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.
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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.
