Sand making machines are specially designed to provide high-quality sand and aggregates for highways, high-speed railways, construction, hydroelectric dam construction and concrete batching plants.
This article will provide a detailed overview of these sand crusher machines to help you choose the right one.
1. VSI Sand Making Machine
VSI sand making machine(vertical shaft impact crushers) produces high-quality artificial sand by breaking down raw materials with a high-speed rotor and shaping them into sand-sized particles. The crushed stone products are adjustable between 1- 5 mm.
Processing capacity: 40-650t/h
Maximum feed size: ≤60mm
Applicable materials: high-hardness materials such as river pebbles, granite, basalt, iron ore, and low-hardness materials such as bluestone, weathered stone, limestone, dolomite, and gypsum. It is also well suited for processing materials with a high silica content, such as quartzite and glass.
Working principle: Crushing is primarily achieved through high-speed collisions between the materials. The mixed materials then strike the vortex liner, causing them to repeatedly bounce off, grind against each other, and undergo multiple impacts and reshaping within the vortex chamber, after which the qualified sand and gravel are discharged from the bottom.
Advantages of VSI sand making machine:
- The finished product is cubic in shape with uniform grain shape, suitable for the production of artificial sand.
- Adopts four impellers with throwing mouth, improves the material passing rate and increases the output by 30%.
- Improved lubrication and cooling integrated to ensure bearing temperature control and extend equipment life.
- The equipment adopts a self-circulation system, with low pollution emissions, in line with national environmental standards.
2. Vertical Shift Compound Crusher
The compound crusher adopts a hammerhead for graded crushing. It is suitable for medium-hardness stone sand-making processes like limestone. It can directly crush materials to a particle size of 3- 5 mm.
Processing capacity: 5-100t/h
Feed Size: ≤ 100mm
Output: 20-200t/h
Applicable materials: soft and medium-hard materials such as limestone, marble, construction waste, sandstone and ordinary river pebbles, granite and basalt as well as mineral slag.
Working principle: the vertical compound crusher drives the high-speed rotating rotor and hammer head through the motor. Materials fall into the crushing cavity from the top feeding inlet and are continuously impacted, struck, sheared and ground by the high-speed hammer. The crushed materials collide with the lining plate on the inner wall of the machine for secondary crushing, and fine materials are discharged from the bottom gap.
Advantages of vertical shift compound crusher
- The screen-bar-free design completely eliminates clogging issues, easily handling materials containing moisture, mud, and weathering.
- Integrating impact, shearing, and crushing effects, it boasts a large crushing ratio, directly processing raw stone into finished manufactured sand.
- The finished sand and gravel are cubic in shape with low needle-like and flaky content.
- Equipped with an automatic debris removal structure, it can discharge hard objects such as iron blocks, protecting the core rotor components.
- The vertical, compact structure allows for vertical material crushing from top to bottom. It occupies a small area, making it suitable for sand pits and sand and gravel production lines with limited space, resulting in low infrastructure investment.
3. Heavy Hammer Crusher
The heavy hammer sand making machine is very suitable for the production needs of large-scale sand and gravel fields. It achieves one-time crushing and molding without secondary operations, and a single machine is a complete production line.
Processing capacity: 60-3000t/h
Feed Size: ≤ 1000mm
Applicable materials: Heavy hammer crushers are suitable only for brittle materials with low to medium hardness. Such as limestone, bluestone, chalk, dolomite, marble, gypsum, coal, brick, tile, salt, construction waste without steel bars, and weathered pebbles.
Working principle: It primarily relies on impact energy to crush materials. Material is fed into the equipment through the upper feed inlet and is crushed through the impact, shearing, and grinding actions of the high-speed rotating hammers. A screen plate is installed below the rotor; particles smaller than the screen aperture size pass through the screen plate and are discharged.
Advantages of heavy hammer crusher
- Supports direct feeding of large-sized raw stones, eliminating the need for pre-treatment with a jaw crusher. Crushing and sand production can be completed in a single stage.
- Utilizes heavy-duty hammer impact crushing, providing strong crushing force and a large crushing ratio.
- The fineness of the output can be flexibly controlled by adjusting the grate gap, allowing for the production of sand and gravel of different specifications as needed.
- Specifically suited for medium-soft and medium-hard materials such as limestone, bluestone, coal gangue, weathered rock, and gypsum; both dry and wet materials can be processed.
4. Double Roller Crusher
The roller crusher crushes and shapes stones into sand-sized particles by compressing them between two rotating rollers. They are commonly used in sand plants for the tertiary crushing process. It’s suitable for fine crushing with a feed size less than 30mm and a finished product size requirement of> 5 mm.
Processing capacity: 10-200t/h
Feed size: ≤ 30mm
Applicable materials: river pebbles, mountain stone, limestone, iron ore, granite, weathered sand, and construction waste.
Advantages of double roller crusher:
- Cubic finished product: no secondary processing is required, saving working time and cost.
- Long service life and easy maintenance: wear-resistant liners on the grinding roller are replaceable.
- Less over-crushing phenomenon: the tooth shape, size, and arrangement on the roller surface can be changed with the nature of the material.
- High yield rate: the yield rate after shaping and crushing is almost 100%.
Whether you need to crush limestone sand, granite sand, basalt sand, Sandreck can provide solid sand-making machines and efficient sand production lines according to your raw material size, output size, output, stone hardness, etc. Feel free to contact us.
