The traditional limestone crushing process usually combines jaw crushers with cone crushers, but in practical applications, there are many problems - including low crushing efficiency, high powder generation rate, high energy consumption, uneven product particle size, and high infrastructure and operation costs.
Our company's newly developed limestone crushing production line adopts a combination of primary sizer and secondary sizer, which can effectively replace the traditional crushing system. This solution has the advantages of higher crushing efficiency, more uniform particle size control, lower energy consumption, and significantly reduced equipment investment and maintenance costs, providing a more efficient, economical and environmentally friendly solution for modern limestone crushing operations.

The advantages of the sizer crusher compared with traditional crushers

Overall dimensions / Floor space / Feeding height Compact structure, small floor area, convenient for existing line transformation and loader feeding.
	Product block rate / Material shape Compared with the cone crusher, the sizer crusher has a more concentrated particle size distribution of the output, approaching regular polyhedrons or circles, with the least fine powder, which is conducive to improving the screening qualification rate.
Maintenance and operation costs Compared with the cone crusher, the sizer crusher features low speed, less impact, and the ability to replace its teeth in sections. This results in longer service life of spare parts and shorter downtime. The maintenance and operation costs are lower.
Material force / crushing mechanism Compared with cone crushers, the sizer crusher adopts shearing + crushing + splitting (segmental crushing to reduce impact pulverization).

1. Advanced Crushing Principle
Utilizes a dual-shaft, low-speed shear and compression design that breaks limestone along natural planes, ensuring smooth crushing, less dust, and lower energy use.

2. Precise Size Control & High Lump Yield
Optimized tooth profiles enable precise discharge control for uniform shape and high lump ratio.

3. Strong Wet Material Adaptability
Low-speed rolling and an open chamber ensure stable operation with wet or sticky materials.

4. High Efficiency, Low Energy Use
Low-speed, high-torque drive boosts efficiency and cuts energy by 20–40% versus conventional crushers.

5. Compact & Space-Saving Design
Modular layout reduces system footprint to 60–70% of traditional setups, minimizing civil work needs.

6. Low Maintenance & Quick Replacement
T-slot modular teeth allow fast wear-part swaps. Interchangeable spares and 1.5–3× longer wear life cut downtime and cost

	Primary Sizer Crusher Material handling: Limestone, Aggregate, Stone, Sand and Gravel Feeding  size: 800mm-1500mm Product Size: ≤300 Typical Application: Primary crushing of raw ore reduces the size of the blocks
Secondary Sizer Crusher Material Handling: Limestone, Aggregate, Stone, Sand and Gravel Feeding  Size: 200mm-400mm Product Size: 50mm-150mm Typical Application: After rough crushing, shaping is carried out to control the final particle size distribution.

	Project Name: Guangxi Runhan New Materials Technology Co., Ltd Limestone Crushing Project
	Equipment Name: Primary Sizer Crusher, Secondary Sizer Crusher, Tertiary Sizer Crusher
	Handle Materials: Limestone
	Handling Capacity: 2300T/H
	Equipment Model: 2PLF150/300, 2PLF150/300, 2PLF120/350
	Compressiv Strength: 150Mpa
	Time: 2024.8
	In this project, we provided the customer with a primary sizer crusher, a secondary sizer crusher and a tertiary sizer crusher to form a crushing production line, achieving an output of 2,300 tons per hour. This significantly increased the customer's production capacity and reduced their operating costs.
	Project Name :Henan Jigang Dolomite Mining Co., Ltd Crushing Project
	Equipment Name: Secondary Sizer Crusher
	Handle Materials: Dolomite
	Handling Capacity: 500T/H
	Equipment Model: 2PLF120/200
	Compressiv Strength: 150Mpa
	Time: 2024.5
	This project is a renovation project for our client. The main task is to replace the existing impact crusher with a secondary sizer crusher. This change has reduced the amount of fine powder, improved the size of the product blocks, significantly decreased the amount of return material, and greatly enhanced the crushing efficiency.