Core Parts of Vertical Shaft Impactor (VSI)
High Wear Resistance · High Stability · Compatible with Various VSI Sand Making Equipment
Product Overview
The core parts of vertical shaft impactor are key components that determine the sand making efficiency, finished product particle shape and equipment operation stability. Shandong Hengtai Intelligent Manufacturing provides a full set of high-wear-resistant core parts, which are precisely processed and strictly tested, and can be perfectly matched with various types of VSI sand making machines to meet the needs of high-intensity production conditions.
Core Parts Details
1. Impeller
Main Functions
The core rotating part of VSI, accelerates and ejects materials at high speed to collide with guard plates and impact blocks for crushing and sand making.
Directly determines:
• Crushing efficiency
• Finished sand particle shape
• Equipment operation stability
Maintenance Tips
Regularly check wear, cracks and bolt tightness
Avoid uneven feeding to prevent dynamic balance damage
Prohibit hard impurities such as metal blocks from entering
Replace wear-resistant liners periodically
2. Throwing Head
Main Functions
Installed on the impeller, it is the executive part that directly contacts and ejects materials. Its wear resistance directly affects sand making output and consumable cost.
Maintenance Tips
Choose high-hardness wear-resistant alloy material
Ensure uniform spacing and stress during installation
Replace when wear exceeds 1/3 of original thickness or cracks occur
Avoid uneven throwing affecting sand quality
3. Upper Flow Guide Plate
Main Functions
Guides materials to enter the impeller evenly, optimizes feeding trajectory, prevents local excessive wear of impeller caused by direct material impact, and reduces airflow turbulence during feeding.
Maintenance Tips
Regularly clean material accumulation to prevent blockage
Check wear condition and replace when severely worn
Calibrate angle during installation to ensure accurate material guiding
4. Lower Flow Guide Plate
Main Functions
Works with upper flow guide plate to conduct secondary guiding of rebounded materials after impeller ejection, improves crushing efficiency, and protects the inner wall of the machine body.
Maintenance Tips
Avoid long-term material accumulation on the plate surface
Regularly check the gap with the impeller
Excessive gap causes material backflow; too small gap may cause collision
Replace when worn to the specified thickness
5. Circumferential Guard Plate
Main Functions
Installed inside the circumference of the VSI body, withstands high-speed material impact to protect the body shell; forms a "rock-on-rock" crushing environment through material rebound, improves sand making efficiency and finished product quality.
Maintenance Tips
Symmetrical installation, can be rotated or reversed periodically
Avoid body exposure due to local severe wear
Must replace when perforation or excessive wear occurs
Regularly check fixing bolts to prevent loosening and falling off
Frequently Asked Questions (FAQ)
Q1: What are the main core parts of the vertical shaft impactor?
The core parts mainly include impeller, throwing head, upper flow guide plate, lower flow guide plate and circumferential guard plate. These parts directly determine the sand making efficiency, finished sand particle shape and the overall operation stability of the equipment.
Q2: What is the function of the impeller in the vertical shaft impactor?
The impeller is the core rotating part of the sand making machine. It accelerates and ejects materials at high speed to collide with the circumferential guard plate and impact block to achieve crushing and sand making. Its performance has the greatest impact on output and stability.
Q3: What are the most common problems of the impeller in daily use?
Common problems include excessive wear, cracks, loose bolts and damaged dynamic balance, which are mostly caused by uneven material feeding, entry of metal impurities or failure to replace wear-resistant liners in time.
Q4: Why is the replacement frequency of the throwing head relatively high?
The throwing head is the part that directly grabs and ejects materials. It bears high-frequency impact and strong wear for a long time, and its wear rate is faster than other parts, so it is a normal wearing part.
Q5: How to judge that the throwing head needs to be replaced?
When the wear of the throwing head exceeds 1/3 of the original thickness, or cracks and deformation occur, it should be replaced immediately. Otherwise, it will lead to uneven throwing and affect sand making efficiency and finished sand quality.
Q6: What is the main function of the upper flow guide plate?
The upper flow guide plate is used to guide materials to enter the impeller evenly, optimize the feeding trajectory, avoid local severe wear of the impeller caused by direct material impact, and reduce airflow turbulence during feeding.
Q7: What is the difference between the lower flow guide plate and the upper flow guide plate?
The lower flow guide plate mainly undertakes the rebounded materials after impeller ejection, conducts secondary guiding, improves crushing efficiency, and protects the inner wall of the machine body. The two need to be used together.
Q8: Why is it necessary to focus on checking the gap between the flow guide plate and the impeller?
Excessive gap will lead to material backflow and reduced efficiency; too small gap may cause collision and damage to the impeller or flow guide plate. Therefore, it is necessary to check and adjust regularly.
Q9: What is the function of the circumferential guard plate in the sand making process?
The circumferential guard plate is installed inside the circumference of the machine body, used to withstand high-speed material impact to protect the body shell, and forms a "rock-on-rock" crushing environment through material rebound to improve sand making effect.
Q10: Can the circumferential guard plate be reversed or rotated for use?
Yes. The circumferential guard plate is usually designed symmetrically, and can be rotated or reversed regularly, which effectively extends the overall service life and reduces replacement costs.
Q11: Can the core parts be customized according to different sand making machine models?
Yes. The core parts of the vertical shaft impactor support customization according to different equipment models, rotor structures and working conditions to ensure assembly accuracy and service life.
Q12: How to extend the service life of the core parts of the vertical shaft impactor?
It is recommended to do the following: prohibit metal impurities from entering the equipment; ensure uniform feeding and avoid uneven loading; regularly check wear and tightness; replace wearing parts in time according to working conditions. This can significantly improve the service life of parts and reduce overall operation costs.
Contact Us
For Customization Quotation, Model Matching or Technical Support of VSI Core Parts
Phone: +86 182 8866 4797
Email: ht6234nibin@gmail.com
Address: Intelligent Equipment Manufacturing Industrial Park, Linyi High-tech Zone, Linyi City, Shandong Province