Also known as an impact crusher, it is a common mineral processing equipment primarily used for crushing various types of sand and gravel and processing them into sand. In aggregate production lines, sand makers typically serve as tertiary crushers, primarily producing manufactured sand. They can reduce any stone material no larger than 20mm to particles smaller than 5mm. Widely applicable across sectors such as metallurgy, building materials, railways, highways, water conservancy, and chemical industries, the finished product features a three-dimensional polyhedral shape with well-rounded particles. This equipment stands as the core machinery for professional manufactured sand production.
Working Principle of Sand Making Machine
Material falls into the feed hopper and enters the high-speed rotating impeller through the feed opening. Inside the impeller, it is rapidly accelerated to dozens of times the gravitational acceleration. It is then ejected at high speed from the impeller, First, it collides with another portion of material that has rebounded and is freely falling. Together, they strike the material lining or impact blocks, rebounding at an upward angle to hit the top of the vortex chamber. Their direction of motion changes again, deflecting downward to collide with material ejected from the impeller's flow channels, forming a continuous curtain of material. Thus, each piece of material undergoes multiple impacts, friction, and grinding within the vortex crushing chamber. The crushed material is discharged through the lower outlet.
Structure of sand maker machine
The structure of sand making machines varies depending on the type. The vertical shaft impact sand making machine is widely used and primarily consists of a feed hopper, distributor, vortex crushing chamber, rotor assembly, main shaft assembly, base, transmission system, and motor.
Feed Hopper: Typically cylindrical in structure, the feed hopper primarily conveys material from the feeding equipment into the sand making machine. It features wear-resistant rings with excellent durability to prevent damage to uncrushed material due to friction.
Distributor: The distributor's main function is to screen crushed material, separating qualified fine particles. Unqualified material is redirected back into the crusher for further processing until the required fineness is achieved.
Vortex Crushing Chamber: The vortex crushing chamber is typically a ring-shaped space formed by two cylindrical sections. The impeller rotates at high speed within this chamber, where material can accumulate to form a material lining. The primary crushing process occurs within this vortex chamber.
Impeller Body: The impeller body is typically mounted at both ends of the bearings. Through high-speed rotation, it evenly disperses material from the impeller center to all areas, subjecting the material to intense impact and friction to achieve crushing.
Main Shaft Assembly: The main shaft assembly is mounted on the base. It transmits power from the motor via a V-belt and supports the rotational movement of the impeller. The main shaft assembly consists of a bearing housing, main shaft, bearings, etc.
Base: The base is usually mounted on a support frame or directly on the foundation. It carries the vortex crushing chamber, main shaft assembly, motor, and transmission. The base has a central quadrilateral prism space, with the main shaft assembly in the center and discharge channels on both sides. The motor is located in the longitudinal section of the base.
How to Choose the Right small sand making machine for You
Sand maker machine are the core equipment in sand production plants, and their quality and performance directly impact production efficiency and product quality. Therefore, selecting the appropriate sand making machine is crucial for investors in sand production facilities.
1. Based on Production Requirements
Different types of sand maker machines suit varying production needs. Before selecting equipment, thoroughly understand your production requirements and choose the suitable machine type.
2. Based on Production Capacity
Production capacity is a key parameter of sand making equipment, determining its efficiency and output. Therefore, when selecting a sand maker machine, choose based on production requirements and budget.
3. Based on Quality and Durability
Quality and durability are vital indicators for sand making equipment, affecting both production efficiency and service life. Thus, prioritize equipment with superior quality and durability when making your selection.
4. Based on After-Sales Service
After-sales service is a critical consideration for users. Robust support ensures worry-free operation, enables prompt issue resolution, and minimizes downtime risks.
Selecting the appropriate sand-making machine requires evaluating multiple factors, including production requirements, capacity, quality and durability, and after-sales service.
Sand making machine price
The price of sand making machines is primarily influenced by factors such as machine structure, production capacity, core configuration, material quality, manufacturing process, and whether the machine is mobile. Significant price variations exist among different types of sand making machines due to differences in technological complexity. Higher production capacity, larger equipment size, greater motor power, and increased material costs all contribute to higher prices. The configuration level of core components like bearings, motors, and wear-resistant parts also significantly impacts the quotation. Branded manufacturers typically command higher prices than smaller factories due to superior quality and more reliable after-sales service. Additionally, fluctuations in raw material costs (e.g., copper), transportation and installation fees, and customized requirements all contribute to the final price.
FAQ
Q: What materials are suitable for sand making machines?
A: Sand making machines are primarily used for sand production and shaping of medium to high hardness materials such as river pebbles, granite, basalt, limestone, quartzite, iron ore, and construction waste. Different models have varying requirements for material hardness and feed size, allowing selection based on raw material characteristics.
Q: Can the output particle size of the small sand making machine be adjusted?
A: Yes. Output particle size is typically controlled by adjusting the rotor speed, crushing chamber clearance, and feed rate. For finer particle size requirements, screening equipment can be used in conjunction.
Q: What causes excessive vibration in the sand maker?
A: Abnormal vibration is typically related to unstable foundations, rotor imbalance, bearing damage, or metal contamination in the feed material. Shut down the machine for inspection and troubleshooting before restarting.
Q: What should be done if the sand maker produces excessive powder?
A: Excessive powder may result from excessive rotational speed, low material moisture content, or insufficient crushing chamber clearance. Appropriate solutions include reducing rotational speed, adjusting material moisture content, or increasing crushing chamber clearance.
Q: What causes bearing overheating in sand makers?
A: Bearing overheating is typically caused by insufficient or degraded lubricant, improper bearing installation, or rotor imbalance. Timely inspection of lubrication status and bearing condition is crucial.
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