Compound crushers demonstrate high efficiency in crushing hard materials such as shale, glass, ceramics, bluestone, and metallic ores. They are most extensively used in the production of manufactured sand and aggregate, as well as in the processing of metallic ores.

Capacity: 8-120 t/h
Feed Size: ≤100-220 mm
Output Size: ≤3 mm

The compound crusher for sale, designed and developed by Sandreck, serves the dual functions of fine crushing and coarse grinding. It is a stone crushing machine that utilizes both impact and grinding principles. Its innovative internal structural design allows for a high crushing ratio, and the output particle size can be adjusted as needed.

As a highly efficient piece of fine-crushing equipment, the compound crusher integrates the features of both hammer crushers and impact crushers. It offers significant advantages, including high production capacity, superior crushing efficiency, a large crushing ratio, minimal wear, low energy consumption, excellent sealing, stable operation, and ease of maintenance.

The vertical compound crusher boasts a high crushing ratio, reaching up to 30, and allows for flexible adjustment of the output particle size, which remains unaffected by the wear of blow bars or liner plates. Designed without screen bars, it is resistant to clogging, even when processing materials with high moisture or clay content. It incorporates an elastic adjustment mechanism that allows uncrushable objects to be discharged automatically, preventing damage to the equipment. The bearings are arranged horizontally, ensuring a longer service life and enabling the processing of high-temperature materials (such as cement clinker).

The compound crusher for sale serves as a core component in stone crushing and sand-making production lines. It is widely used across various sectors, including cement, construction materials, mining, metallurgy, refractory materials, coal, glass, ceramics, and power generation.

Compound Crusher Working Principle

When the compound crusher is started, the motor drives the pulley to rotate via V-belts. As the pulley turns, the main shaft rotates concentrically, causing the impeller—housed within the crushing chamber—to spin at high speed. The pulley is mounted on the vertical main shaft of the compound crusher.

Material enters the high-speed rotating impeller vertically from the top of the crusher. Under the influence of high-speed centrifugal force, the material collides with and is crushed by other material that has been distributed in an umbrella-like pattern around the impeller. Following these initial collisions, the material creates a vortex between the impeller and the crusher housing, leading to further impacts and friction that result in additional size reduction. Once the material reaches the desired particle size, it is discharged directly from the bottom of the unit.

Features of Compound Crusher

Capable of both fine and coarse crushing.
The compound crusher is relatively insensitive to the moisture content of the material, which can be as high as approximately 8%.
Designed without screen bars, it is less prone to clogging when processing materials with high moisture or clay content.
Optimized design of the rotor and crushing chamber creates a multi-stage, continuous crushing zone, ensuring efficient use of energy and space, thereby enhancing overall machine performance.
Features a unique throwing disc design, with throwing ribs and liners arranged in an alternating, circumferential pattern. Once the throwing ribs become worn, they can be repurposed as liners, significantly improving material utilization and reducing operating costs.
Operates smoothly with low noise and minimal vibration. Easy to operate, compact in footprint, and convenient for installation and maintenance.

Compound Crusher Applications

1) Cement Industry

Fine crushing of cement raw mix, limestone, clinker, and gypsum.
Commonly used in technical upgrades for existing cement plants; capable of processing high-temperature clinker and raw materials with relatively high moisture content.

2) Sand, Gravel, and Manufactured Sand

Processing of limestone, dolomite, weathered rock, and river pebbles to produce construction sand, base-layer materials, and roadbed aggregates.
Ideal for small-scale sand-making lines, enabling the production of fine materials in a single crushing stage and eliminating the need for secondary crushing.

3) Mining & Metallurgy

Crushing of medium-soft ores, including iron ore, phosphate rock, lead-zinc ore, and bauxite clinker.
Processing of metallurgical slag (blast furnace slag, steel slag) and refractory materials (magnesite, calcined flint clay/chamotte).

4) Coal & Power Plants

Crushing of lump coal and coal gangue; utilization of coal gangue for brick manufacturing; crushing of limestone for desulfurization in power plants.

5) Chemicals, Fertilizers, Glass, & Ceramics

Fine crushing of raw materials such as phosphate rock, chemical feedstocks, quartz, and feldspar—serving as a preparatory step for subsequent grinding processes.

6) Solid Waste Recycling

Crushing of construction waste, waste bricks, and concrete blocks to produce recycled aggregates (suitable for medium-soft construction waste).

Technical Parameters of Compound Crusher

Model	Feeding Size (mm)	Output Size (mm)	Main Shaft Speed (r/min)	Capacity (t/h)	Power (kW)
PFL-750	≤100	≤3,70-90%	800~1350	8~20	45
PFL-1000	≤120	≤3,70-90%	650~980	15~30	55
PFL-1250	≤150	≤3,70-90%	510~770	35~45	90
PFL-1500	≤180	≤3,70-90%	430~640	50~70	132
PFL-1750	≤200	≤3,70-90%	420~540	70~100	160
PFL-2000	≤220	≤3,70-90%	360~500	90~120	200