Impact Detacher FSZJ

IMPACT DETACHER FSZJ ( DISRUPTOR) 

IMPACT DETACHER FSZJ ( DISRUPTOR) is to break down conglomerates of semolina which have been created 

during the head reduction grinding processafter grinding, the sifting efficiency can be improved after the 

materials are smashed; besides, it can kill pests, prevent the development of ovum and larva, and ensure 

granular or powder materials are unconsolidated, free of arching. 

The rotor of this machine which rotates at a high speed smashes endosperm flakes, helping in detaching. 

As for sheet materials produced after grinding, the sifting efficiency can be improved after the materials 

are smashed; besides, it can kill pests, prevent the development of ovum and larva, and ensure granular 

or powder materials are unconsolidated, free of arching.

　　Characteristics:

　　1、It is small in size, with a small area occupied.

　　2、Material processing is conducted in a closed way, and no flying dust is found.

　　3、It can be installed on ceiling, wall or ground.

　　4、Electronic laser is adopted for accurate feeding, and electrostatic spraying process is adopted, 

       so the surface color is bright and no discoloration occurs for a long time.

　　Technical parameters:

Direct-Coupled Impact Mill1. Equipment Function and Application Scope:

The Direct-Coupled Impact Mill is a new product successfully developed by our company in 2000 and has been 

granted two national patents. It is currently widely used in the wheat milling industry to pulverize pure endosperm 

particles separated by high-deck screens or flour cleaners after grinding by roller mills. It can also be used to 

pulverize granular materials such as corn, feed, pigments, resins, and ores.

This product holds two national patents. Counterfeiting will be prosecuted!

2. Structural Features of the Direct-Coupled Impact Mill:

2.1 Wuxi Hasen impact mill features direct coupling (rotor shaft directly connected to motor shaft) with a 

rotational speed of approximately 2900 r/min. It boasts a simple structure, low cost, stable performance, 

minimal wear parts, low failure rate, and extended service life.

2.2 It employs steel billet carbide pins with wear resistance hundreds of times higher than standard steel 

pins. Extensive testing and practical application have demonstrated that under conditions ensuring consistent 

milling efficiency, the service life of these carbide pins exceeds 10 years. Since the pins are the only 

wear-prone and maintenance-required components (excluding the motor), a 10-year pin lifespan 

effectively means the mill requires no maintenance for a decade.

2.3 Our company manufactures two specifications of direct-drive impact mills: FMFZ59-1 and FMFZ53-1. 

These impact mills can be equipped with motors of varying power ratings to meet the diverse needs of 

large, medium, and small-scale flour production lines.

3. Application Scenarios for Direct-Coupled Impact Mills:

3.1. Installed after the flour cleaner or high-deck screen, the direct-coupled impact mill can assume 

part of the existing milling line's fine grinding tasks for 1st and 2nd heart flour. This effectively 

extends the roller length of the front heart mill, widening its processing capacity.

3.2. Wuxi Hasen Direct-drive impact mills can be installed in the primary grinding system to 

process soft coarse flour (8XX/12XX particle size) separated after re-screening, primary 

grinding, and residue grinding. This also functions as widening the primary grinding section.

3.3. Replace the 4th-stage fine roller mill or all roller mills following the 3rd-stage mill.

3.4. Add impact mills to the existing re-screening system in the flour milling line.

3.5. Replace the high-impact loosening mill installed after the existing single- or double-

heart roller mill in the flour milling line with a direct-drive impact mill.

3.6. Replace the 7-heart roller mill (i.e., the so-called “heartless mill”) with a direct-

drive impact mill.

3.7. Add one impact mill to the bran milling system for impact grinding of finished bran 

to enhance overall flour yield or increase middlings output.

Among the seven application scenarios above, we recommend prioritizing the first three options.

4. Performance Advantages of Direct-Coupled Impact Mills:

4.1. The FMFZ 59 impact mill achieves a direct extraction rate of approximately 60% for soft 

coarse flour with particle sizes of 8XX/12XX (approximately double that of roller mills grinding

 similar materials). Wuxi Hasen Equipped with a 22kW or 30kW motor, the impact mill 

achieves a throughput of 2.5–3.5 t/h (equivalent to three pairs of grinding rollers), with 

electricity consumption for producing the same flour quantity being over 10% lower than roller mills.

4.2 The FMFZ 53 impact mill achieves a direct extraction rate of approximately 50% for 

soft coarse flour with particle sizes of 8XX/12XX (over 50% higher than roller mills grinding

 similar materials). When equipped with a 15kW or 18.5kW motor, the impact mill 

achieves an output of 1.5–2 t/h, with electricity consumption for producing the same 

amount of flour being over 5% lower than that of roller mills.

5. Structure and Working Principle of Direct-Coupled Impact Grinding Equipment:

Wuxi Hasen structure of the direct-coupled impact grinder is shown in the figure:

 apart from the two major components—the housing and cover plate—the rotor

 and stator are the two key parts.

Wuxi Hasen rotor consists of a disc-shaped rotor plate equipped with 3 to 6 rows of 

square-section pins (12 to 48 pins per row) and a hub fixed at the rotor plate's center. 

The rotor is directly coupled to the motor shaft via this hub. The stator comprises a 

disc-shaped stator plate equipped with 3 to 6 rows of square-cross-section pins 

(20 to 72 pins per row), secured to a disc-shaped cover plate using inner and outer rings of screws.

During operation, the motor drives the rotor to rotate at high speed. Material enters the 

direct-drive impact mill through the feed port on the cover plate. The airflow from pneumatic

 conveying and the centrifugal force from the rotor's rotation force the material through the

 gap between the rotor and stator discs, then discharge it through the outlet port on the

 housing. During this process, the pins mounted on the high-speed rotating rotor disc 

deliver intense impacts to the material passing through the narrow gap between them

 and the stator pins. Since the gap between the rotor pins and stator pins in the 

direct-drive impact mill is only 1–1.5 mm, the intense impact of the pins can Impact 

a significant portion of wheat endosperm into flour.

Therefore, under certain specific conditions, it can replace roller mills as a key flour-making

 equipment. As the rotor diameter increases, the impact intensity of the pins during operation

 also increases. Therefore, larger-sized direct-drive impact mills achieve higher flour extraction rates.

Direct-Coupled Impact Detacher Mill Main Technical Parameters：

Note: Since equipment output is closely related to numerous variables such as feed particle size,

 wheat hardness, material quality, and motor power rating, the output figures provided in the table are 

for reference only.

7. Installation and Commissioning

7.1 Due to the high precision in manufacturing and assembly of impact mills, and given their 

structural characteristics, foreign objects that cannot be crushed by the pins entering the 

equipment will inevitably cause severe damage to the entire machine, potentially rendering 

it unusable. 

Furthermore, over 90% of foreign objects encountered in flour production lines 

are steel components. Therefore, each impact mill sold by our companyWuxi Hasen is equipped 

with a permanent magnet cylinder. Note: Every sales contract explicitly requires users to install the

 supplied permanent magnet cylinder near the mill in the feed chute or conveying pipe. 

Failure to do so will result in the user bearing full responsibility for any equipment damage 

and associated losses.

7.2 All impact mills manufactured by our company undergo complete installation and 

commissioning prior to shipment. Users need only connect the pipelines to conduct trial runs. 

However, Wuxi Hasen to prevent foreign objects entering the equipment during transportation

 and installation, manually rotate the motor to inspect it before powering on for trial runs. 

Only proceed if no abnormal noises are detected. Before powering on for trial runs, perform a

 “spot start” to verify the rotor's rotation direction (the rotor should spin in a direction that

 flings material toward the discharge port).

Only after confirming the correct rotation direction should the equipment be powered

 on for formal trial runs. The trial run duration should be no less than 30 minutes. 

After confirming no abnormal noises during the trial run, material feeding may commence.

8. Operation and Maintenance

8.1 Before commissioning a new machine, manually rotate the motor fan blades to turn the 

impact mill rotor. If abnormal noises are detected during manual operation, notify our 

company to dispatch personnel for inspection and repair. Under no circumstances should

 the machine be powered on until abnormal noises are confirmed absent.

8.2 After confirming no abnormal noises during the power-on test run, material feeding 

may commence. During the material feeding test phase, closely monitor changes in motor

 current and machine operating sounds to prevent motor burnout caused by severe material blockage.

8.3 The impact mill must be started under no-load conditions. Any material inside the machine

 must be cleared before restarting. Wuxi Hasen To ensure no material remains inside the housing, 

stop feeding before shutting down the equipment. Run the machine under no-load conditions

 for 2 minutes before powering off.

8.4 If persistent metallic grinding noises occur during startup or operation, immediately 

shut down the equipment. Adjust the axial position of the rotor shaft to eliminate 

the grinding sound.

8.5 The impact grinding mill components and overall assembly exhibit high precision. 

Users should avoid disassembling the machine 

except for motor maintenance. When disassembly is unavoidable, ensure rotor and

 stator pins are not struck or impacted. Unauthorized removal, replacement, or 

repositioning of pins is strictly prohibited.

8.6 After ten days of normal operation following installation, measure the no-load 

current and operating current for each impact mill. Record these values meticulously

 in the equipment technical archives.

Whether the operating current falls within 75% to 95% of the motor's rated current 

is a critical criterion for evaluating the appropriateness of equipment selection and 

motor power matching.

Wuxi Hasen The magnitude and variation of the difference between operating current 

and no-load current serve as key indicators of equipment performance. After 

maintenance, measure the operating current and adjust the rotor's axial position

 to ensure the operating current equals or exceeds the pre-maintenance value.

9. Wear Parts List

Impact Grinder with 11kW, 15kW, or 18.5kW Motor --- 60x85x12 Frame-

Type Rubber Oil Seal HG-492-67 --- 1 piece

 Product Advantages of Hasen Impact Detacher

All structural components of every type of impact loosening machine produced by our company 

Wuxi Hasen can be replaced individually without affecting others. This achieves meticulous, 

simplified, and efficient equipment maintenance.

Both the high-impact loosening machine and impact grinding machine feature threaded hub tops. 

These threads adjust the vertical position of the rotor disc on the motor shaft, enabling 

precise control over process outcomes and facilitating versatile applications.

1. The equipment housings and cover plates are cast from cast iron, offering excellent wear 

resistance and a long service life (over 20 years).

2. All rotor hub bores utilize a through-hole machining process, enhancing product precision 

and facilitating installation and maintenance.

3. All housing and cover plate castings employ lost-foam casting technology, resulting in uniformly 

flat surfaces, consistent wall thickness, and an aesthetically pleasing, minimalist appearance.

4. The rotor pin shafts inside the product are made of 45# steel. Wuxi Hasen The quenching process

 applied to 45# steel achieves over three times the wear resistance compared to surface carburizing, 

extending the pin shaft service life to approximately 8-15 years.

5. An oil seal device is added to the motor shaft section inside the housing, effectively reducing dust

 ingress into the motor and significantly extending its service life.

6. This product features high output and low energy consumption.

7. Fully pre-commissioned at the factory, eliminating the need for on-site adjustments 

and ensuring user-friendly operation.

8. Except for routine motor maintenance, the machine requires no servicing for 8 years

from Wuxi Hasen .

9. No wear-prone components; all parts (excluding the motor) have a service life of approximately 8-12 years.

10. Easy maintenance with low repair costs (all structural components across our equipment types 

are interchangeable and replaceable independently).

11. Turntable balanced using a hard-supported dynamic balancer, achieving technical vibration 

parameters below 100mg.

12. ZJ43 standard impact powder loosening machine employs 5mm and 6mm thick steel plates 

for upper and lower layers.

13. The fixed plate and rotating plate of the ZJ43 Heavy-Duty Impact Powder Loosening Machine

 are constructed from 8mm thick steel plates with machined annular grooves. The pin shafts are 

manufactured from quenched 45# steel, achieving a hardness exceeding 55 HRC (alternatively, 

our patented alloy pin shafts may be used), significantly enhancing wear resistance and ensuring 

long-term stable equipment performance.

Alternatively, alloy pins can be used, extending powder retention time by over three times.

14. The fixed plate and rotating plate of the ZJ51 Heavy-Duty Impact Powder Loosening Machine 

are constructed from 8mm thick steel plates with machined annular grooves. Pins are manufactured

 using quenched 45# steel to achieve a hardness exceeding 55 HRC (alternatively, our patented alloy 

pins may be used), substantially enhancing wear resistance and ensuring long-term operational stability.

Alloy pins may also be employed, extending powder retention time by over threefold Wuxi Hasen .

15. The ZJ53 impact mill features a fixed plate made of 10mm thick steel plate and a rotating plate made

 of 12mm thick steel plate, both machined with annular grooves. The pins utilize our patented alloy 

pins (up to 324 pins), significantly improving wear resistance while extending powder retention time 

by 3-5 times. This ensures long-term stability in equipment performance.

16. The ZJ59 impact mill features a 10mm thick steel plate for the fixed disc and a 12mm thick steel

 plate for the rotating disc, both machined with annular grooves. The pins utilize our patented 

alloy pins (numbering up to 438), significantly enhancing wear resistance while extending powder

 retention time by 3-5 times. This ensures long-term stability in equipment performance.

17. The equipment is equipped with live flanges at the inlet and outlet, facilitating the connection 

and installation of inlet and outlet piping.

18. Under normal wear conditions during operation, the equipment is easy to maintain with 

extremely low maintenance costs.

19. Under normal wear conditions during operation, the equipment requires no maintenance.

20. The equipment adopts a direct motor connection installation mode, Wuxi Hasen making 

operation and maintenance convenient and significantly reducing workload across all aspects.

Thanking you for your attention!

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WUXI HASEN IMPORT AND EXPORT CO.,LTD