The KZP rotary hook-type shot blasting machine is particularly suitable for the surface treatment and deburring of aluminum parts, the descaling of forgings, and the desanding of c
The KZP rotary hook-type shot blasting machine is particularly suitable for the surface treatment and deburring of aluminum parts, the descaling of forgings, and the desanding of castings—especially for workpieces whose shapes and sizes make them unsuitable for tumbling.
Application
The 2-station hook turntable shot blasting machine is suitable for surface shot blasting and strengthening of batch workpieces; this machine is suitable for strengthening and removing oxide scale after heat treatment of gears, gear shafts, crankshafts, engine connecting rods, diaphragm springs, inner shells of artillery shells and other processed parts, so that the surface of the workpiece reaches silver gray, and has the effect of eliminating stress and improving the adhesion of the surface coating; the shot blasting process can also be used to increase surface pre-stress on the above workpieces, improve fatigue strength, and achieve the purpose of shot blasting strengthening and cleaning.
Design and operating sequence
The equipment requires no pit and features a main structure consisting of a rotating blast chamber and a stationary outer housing. The rotating chamber is divided into sections for the blasting process and for loading/unloading. Each section is equipped with a rotating hook from which the workpiece is suspended; as the workpiece rotates into the blasting zone, a drive mechanism causes it to spin while being blasted, ensuring thorough cleaning. The loading and unloading area is open, allowing for the unloading and loading of workpieces at one station while others are being processed in the blasting station. After blasting, the abrasive media passes through a separation unit to remove impurities before being recirculated into the blast wheel.
Structural design features
The shot blasting chamber is lined with highly wear-resistant material. A unique sealing design prevents shot leakage during the blasting process. Safety switches installed at the loading and unloading openings ensure the equipment shuts down completely if a workpiece becomes jammed. A rear access door facilitates the maintenance and inspection of the chamber and the blast wheels.
Equipment Composition and Structural Features
The machine primarily consists of a shot blasting unit, a cleaning chamber assembly, a hook assembly featuring both revolution (with 3-station or 2-station indexing) and rotation (at the blasting station), an abrasive circulation system (including a screw conveyor, elevator, separator, and flow control device), a door assembly, a dust removal system, and an electrical system.
Cleaning Chamber
The cleaning chamber is configured with two stations arranged within a 360-degree layout: a loading station and a shot-blasting station. After a workpiece is hung on the hanger at the loading station, the rotating chamber carries it into the operating zone of the blast wheels. High-speed abrasive media projected by the blast wheels form a fan-shaped stream that strikes the workpiece evenly, effectively cleaning or strengthening all its surfaces. While cleaning is in progress, workpieces can be conveniently loaded at the loading station, and processed workpieces can be unloaded at the unloading station. Spilled abrasive media and debris removed from the workpiece surfaces are collected by the chamber hopper and fed into a screw conveyor; the screw conveyor transports the mixture to a bucket elevator, which lifts it to a separator. Fine dust is drawn by a fan through ducting into a dust collector, where it is filtered by bags; clean air is exhausted into the atmosphere, while dust and broken media fall into a waste bin. Separated, usable media enter a small storage hopper below, where they are manually inspected to determine whether to return them to the circulation system or discard them into the waste bin. The separated, high-quality media are redistributed to the two blast wheels via a flow control device, enabling the media to be recycled.
KZP Rotary Table Hook Shot Blasting Machine
Delivery:
9 weeks +
Technology:
shot blasting
Applications:
Cleaning, deburring, trimming
Industry:
Casting/Forging
Process:
Batch Production
Advantage
Practical application has demonstrated that this machine offers high flexibility and strong reliability.
Fast operating speed; minimal time spent on auxiliary processes.
Low maintenance costs and low risk of failure.
Minimal scrap and low shot-blasting loss.
Features
The shot blasting chamber features a unique design that maximizes the use of shot rebound.
Facilitates automatic workpiece loading and unloading using robots or robotic arms.
Application
Surface treatment and deburring of aluminum parts
Descaling of forgings
Desanding of castings
Widely applicable
The KZP rotary hook-type shot blasting machine is particularly suitable for the surface treatment and deburring of aluminum parts, the descaling of forgings, and the desanding of castings—especially for workpieces whose shapes and sizes make them unsuitable for tumbling.
Efficient and precise
Equipped with a robot, the machine can be integrated into a continuous production line to link various manufacturing units. Performance data (batch counts, shot-blasting hours, fault location, etc.) can be monitored and displayed.
Design and Operation
This machine requires no foundation. The main unit comprises a rotary blast chamber (divided into two or three compartments), a shot-blasting unit, and an abrasive separation unit. Each compartment is equipped with a rotating hook assembly designed to receive the hook carrying the parts to be cleaned. The machine features an open loading area, allowing parts to undergo shot-blasting in one compartment while loading and unloading operations take place in another.
A unique sealing design prevents abrasive leakage from the top, sides, and bottom of the blast chamber. An access door at the rear of the unit facilitates maintenance and inspection by the operator.
Thinner, more powerful, and designed specifically for aluminum products.
Qingdao KEEJOO Group has launched a new, compact shot blasting machine specifically designed for aluminum applications. Like other models in the KZP rotary hook series, this new unit features two blasting chambers that form two semi-cylinders rotating around a vertical axis. This design not only enables simultaneous loading/unloading and blasting but also ensures more efficient use of space and the two blast wheels.
KZP Specification
KZP-2-3/8
KZP-2-3/9
KZP-2-5,5/12
KZP-2-8,5/15
KZP-3-6/11
Maximum load capacity (kg)
150
150
300
600
300
Maximum swing diameter (mm)
300
300
550
850
600
Maximum hook height (mm)
800
900
1200
1500
1100
Number of blast wheels
2
2
2
2
2-4
Power of each shot blasting unit (kW)
5.5 (4)
3.75
5.5
7.5
5.5-15
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.
Selected Case Studies of KEEJOO Brand Shot Blasting Machines
Hook-type shot blasting machine manufactured for Cummins Engine Company
Hook and monorail conveyor shot blasting machine manufactured for Siemens
Hook through-type shot blasting machine for Doosan Heavy Industries
Hook-type shot blasting machine manufactured for Komatsu Shantui
Large-scale hook-type shot blasting machine for Caterpillar (USA)
Hook-type shot blasting machine for wind power fans, manufactured for Collett & Fil
Large-scale shot blasting machine dedicated to the nuclear power industry, manufactured for Shentong Valve
To date, we have successfully delivered over 1,000 sets of hook-type shot blasting machines both domestically and internationally, maintaining a clear industry-leading position.
......
A large listed domestic agricultural equipment group phased out its outdated shot blasting machines in the past two years and fully adopted hook-type shot blasting machines independently developed and manufactured by Qingdao KEEJOO Group. Up to now, the group has purchased a total of 58 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.
4Step-action pneumatic AB doors or continuous light curtain sensing system.
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.
1. Two sets of light curtain sensors are installed at the inlet and outlet, respectively; used in pairs, the sensor density can be selected based on workpiece size.
2. When a workpiece enters the blast chamber, the inlet light curtain detects its arrival, triggering a delayed start of the blast wheel. A light curtain sensor is also installed at the outlet; when the sensors at both the inlet and outlet detect no workpieces, the flow valve automatically closes immediately to prevent "air blasting" (blasting without a workpiece present).
5
Automatic overhead conveyor System
1. One set of automatic closed-loop overhead conveyor system.
2. One set of tooling system, fabricated by welding wear-resistant steel rods after heat treatment (design can be customized based on specific customer requirements).
3.Variable frequency speed control, allowing speed adjustment according to shot blasting requirements.
5.1
Y‑shaped guide rail and automatic hanger changeover system
1. One set of Y-track trolley systems enables continuous operation across two workstations. A pneumatic valve controls the track-switching mechanism. While one hoist unit is engaged in the shot-blasting process, the other is used for loading and unloading.
2. Two sets of tooling systems, fabricated by welding wear-resistant steel rods after heat treatment (designs can be customized to meet specific customer requirements).
3. Two sets of hoist systems featuring a four-section telescopic framework and a chain electric hoist mechanism, ensuring excellent stability.
6
Sorting 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.
7
Electrical 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)
8
Dust collector
1.Pulse-jet cleaning system
2.Precision filter cartridge filtration system
3.High-efficiency three-stage dust removal
4.Optimized and upgraded Donaldson (USA) dust removal technology system
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.
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.
High-end Shot Blasting Unit Manufacturing Workshop
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.
