Baichy Heavy Industrial Machinery Co., Ltd
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1. Soft Materials: Feed size < 40 mm (e.g., limestone, shale). Since these materials are relatively soft, initial crushing occurs easily the moment they enter the crushing chamber; therefore, the allowable feed aperture can be slightly larger.
2. Hard Materials: Feed size < 35 mm (e.g., granite, basalt, river pebbles). Due to their high hardness and strong abrasiveness, the feed size is reduced to protect the rotor's wear parts and to prevent blockages or excessive wear.
• Deep-Cavity Rotor Design: Features an optimized discharge port and internal structure, increasing material throughput by approximately 30% and ensuring high crushing efficiency.
• Superior Product Shape: The finished sand exhibits a cubic shape with extremely low content of needle-like or flaky particles; it features a rational gradation and an adjustable fineness modulus, making it highly suitable as aggregate for high-performance concrete.
• Extended Wear Part Lifespan: Employs a "stone-on-stone" working principle, which minimizes direct contact between the material and the wear parts; critical components are constructed from highly wear-resistant materials, resulting in longer maintenance cycles.
• Convenient Maintenance: Equipped with a hydraulic lid-opening mechanism that facilitates easy inspection and replacement of internal rotor components, thereby minimizing downtime.
• Eco-Friendly Design: The equipment features excellent sealing capabilities; when paired with a dust removal system, it effectively controls dust pollution while operating with relatively low noise levels.
| Model | VSI-8518 | |
|---|---|---|
| Capacity (t/h) | Cascade and Center Feeding | 200-260 |
| Center Feeding | 100-130 | |
| Feeding Size (mm) | Soft Material | <40 |
| Hard Material | <35 | |
| Rotation Speed (r/min) | 1520-1690 | |
| Power of the Double Motors (kw) | 180-220 | |
| Overall dimension L*W*H (mm) | 4140*2280*2425 | |
| Power Source | 380v:50hz | |
| Vibrating Sensor | Inspection Scope:0.1-20mm/s, it can be adjusted continuously. | |
| Hydraulic Lubrication Station | Power of Double Oil Pump | 2x0.31kw |
| Safety | Double oil pumps make sure supply of oil with; Stop automatically without oil flow or oil pressure; Water cooled; Heating start the motor in winter. | |
| Overall Dimension L*W*H (mm) | 820x520x1270 | |
| Power of Oil-Box Heater | 2kw | |
| NO. | Product Name | Model | Quantity |
|---|---|---|---|
| 1 | Hopper | LC4000×6000 | 1 |
| 2 | Vibrating feeder | ZSW1142 | 1 |
| 3 | Jaw Crusher | PE750×1060 | 1 |
| 4 | Cone Crusher | CS220 | 1 |
| 5 | Vibrating Screen | 3YK1860 | 1 |
| 6 | Sand Making Machine | VSI 8518 | 1 |
| 7 | Vibrating Screen | 3YK2460 | 1 |
| 7 | Sand Washing Machine | XL1150×9m | 1 |
| 7 | Sand Dewatering Machine | YTS2252 | 1 |
| 7 | Belt conveyor | B1000 | 2 |
| 7 | Belt conveyor | B800 | 1 |
| 8 | Belt conveyor | B650 | 4 |
| 9 | Belt conveyor | B500 | 2 |
The VSI-8518 sand-making machine occupies a central position within the entire sand production line, typically serving as the tertiary (final) crushing equipment. It does not merely serve to break down stones; its core functions can be summarized in the following five aspects:
1. Product Particle Shaping (Core Function): The stone materials produced by upstream crushing stages (such as cone crushers) often contain a significant proportion of elongated or flat, needle-like and flaky particles. The VSI-8518 eliminates these sharp edges and angles through high-speed, "stone-on-stone" impact.
2. Converting Crushed Stone into Manufactured Sand: It receives material from the secondary crushing stage (typically sized at 35mm to 40mm or smaller) and utilizes a high-speed rotating rotor to generate immense kinetic energy, subjecting the material to high-frequency impacts within the crushing chamber.
3. Controlling Gradation and Fineness Modulus: By adjusting the rotor speed and the volume of "waterfall feed," the VSI-8518 can alter the proportion of particles within specific size ranges (0.15mm to 5mm) in the final product.
4. Selective Crushing (Enhancing Aggregate Strength): VSI crushing features a "selective" mechanism; specifically, weaker particles within the material—those with a loose structure and lower strength—are preferentially shattered into extremely fine powder under the force of high-speed impact.
5. Increasing Overall Line Throughput: The "waterfall feed" mode you mentioned allows a portion of the material to bypass the rotor entirely, entering the crushing chamber directly to participate in the impact process. This method not only boosts the VSI unit's own processing capacity but also reduces wear and tear on the rotor.
Upstream: Receives 35mm/40mm material from a cone crusher or impact crusher.
Current Stage (VSI-8518): Performs particle shaping, sand production, and preliminary classification.
Downstream: The output material proceeds to a vibrating screen. Qualified sand (0–5mm) is screened out and sent to a sand washing machine, while unqualified coarse material (>5mm) is returned to the VSI-8518 for further cyclic crushing. It can be said that without the shaping and sand-making capabilities of the VSI-8518, the output would be merely "crushed stone fines"—rather than what constitutes truly "high-quality manufactured sand."
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