The sand-making machine is a new type of sand-making and crushing equipment that absorbs many years of research and development experience and technical concepts, adopts a new four-port impeller design structure and a special sealing structure to prevent oil leakage from the bearing cylinder, and has a number of national patent technologies.
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High capacity, excellent sand shape, high wear resistance, easy maintenance and reliable operation — the VSI sand maker suits construction, sand and gravel, cement and metallurgy.
The VSI sand making machine is a high-efficiency sand-making and shaping device developed by Baichy based on absorbing domestic and international technical experience and combining with the actual working conditions of the aggregate industry. The equipment features a four-impeller rotor structure design and a dedicated sealing structure to prevent oil leakage from the bearing housing. The entire machine incorporates multiple patented technologies.
• Feed size: 0–50 mm
• Capacity range: 60–600 t/h
• Model coverage: VSI-7611 / VSI-8518 / VSI-9526 / VSI-1140 / VSI-1145
• Power supply: 380V / 50Hz
The equipment combines both crushing and shaping functions, and is suitable for industries such as construction, aggregates, cement, and metallurgy.
vertical shaft impact crusher, sand crusher, vsi sand-making machine
vertical shaft impact crusher, sand crusher, vsi sand-making machine
vertical shaft impact crusher, sand crusher, vsi sand-making machine
vertical shaft impact crusher, sand crusher, vsi sand-making machine
Adopting central feeding combined with annular cascade feeding, the material undergoes multiple impacts and friction in the vortex crushing cavity. The finished manufactured sand exhibits a multi-angular cubic particle shape, with a reasonable gradation and adjustable fineness modulus. The content of flaky and needle-shaped particles is low, meeting high-standard construction sand requirements.
The optimized crushing chamber design and higher linear speed enable the material to gain greater kinetic energy within the cavity. Through stone-on-stone impact, efficient self-impact crushing is achieved with high energy utilization, resulting in relatively lower energy consumption at equivalent capacity.
The equipment can be switched between stone-on-stone and stone-on-iron working modes through simple adjustment: stone-on-stone mode is suitable for shaping and sand-making of medium-hard and harder materials with lower wear costs; stone-on-iron mode is suitable for sand-making of medium-hard and softer materials with higher crushing efficiency. It can also be used for fine crushing and shaping of material after primary crushing.
The core components of the crushing chamber adopt a modular design for convenient replacement. Key wear parts are made of high-strength wear-resistant alloy materials for a longer service life. The hydraulic opening device enables quick internal inspection and maintenance, effectively reducing downtime.
Baichy vertical shaft impact crushers are running in both stationary sand plants and mobile sand-making lines, handling different materials and product specifications.
The sand-making machine is composed of seven parts: a feeding hopper, a distributor, a vortex crushing chamber, an impeller body, a main shaft assembly, a base, a transmission device, and a motor.
The material falls vertically into the high-speed rotating impeller from the upper part of the machine. Under the action of high-speed centrifugal force, it will collide with another part of the material shunted around the impeller in the form of an umbrella. The material forms a vortex between the casings, collides and rubs each other many times, is crushed, and is directly discharged from the lower part to form a closed circuit for multiple cycles. After being controlled by the screening equipment, the finished product reaches the required particle size.
| Model | VSI-7611 | VSI-8518 | VSI-9526 | VSI-1140 | VSI-1145 | |
| CapacIty (t/h) | CaScade and Center FeedIng | 120-180 | 200-260 | 300-360 | 450-520 | 500-600 |
| Center FeedIng | 60-90 | 100-130 | 150-190 | 225-260 | 250-360 | |
| Feeding SIze (mm) | Soft MaterIal | <35 | <40 | <45 | <50 | <50 |
| Hard MaterIal | <30 | <35 | <40 | <45 | <45 | |
| RotatIon Speed (r/min) | 1700-1890 | 1520-1690 | 1360-1510 | 1180-1310 | 1180-1280 | |
| Power of the Double MotorS（kw） | 2×55 | 2×90 | 2×132 | 2×200 | 2×220 | |
| Overall DImenSIon LxWxH（mm） | 4100×2290×2350 | 4600×2280×2650 | 4600×2350×2850 | 5200×2600×3220 | 5500×2790×3320 | |
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A VSI (vertical shaft impact) sand making machine crushes and shapes material using two principles: stone-on-stone and stone-on-iron. Material drops into a spinning impeller, which flings it outward at high speed. The material hits a surrounding curtain of other material, creating a vortex where it collides and grinds itself down. The crushed material exits at the bottom and goes through screens until it reaches the desired size. The same machine both crushes and shapes.
Feed size goes up to 50 mm depending on model and material hardness — soft material can take 35–50 mm, hard material 30–45 mm. Total capacity across the series ranges from 60 to 600 t/h. For example, the VSI-7611 handles 120–180 t/h, while the VSI-1145 reaches 490–600 t/h in cascade-and-center feeding mode, or 250–310 t/h in center-feeding mode alone.
Use stone-on-stone for medium-hard to hard, abrasive materials used in shaping and sand making — the material grinds against itself, so wear parts last longer. Use stone-on-iron for softer materials where crushing speed matters more. The machine switches between the two modes with a simple adjustment.
It's widely used in construction, roads, water conservancy, metallurgy, and chemicals. Common applications include concrete sand, dry-mix mortar sand, road base aggregate, and embankment fill. It handles materials of varying hardness such as river pebbles, granite, and basalt.
Key wear parts (wear plates, flow plates, throwing heads, wear blocks) are made of high-strength wear-resistant alloy and are modular for easy replacement. A hydraulic device lifts the top cover so the chamber can be inspected quickly. The main shaft uses a thin-oil lubrication station with dual oil pumps that automatically shut down the machine if oil flow or pressure drops. It includes water cooling and a 2 kW heater for cold starts. A vibration sensor (0.1–20 mm/s) monitors machine condition.
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