China VSI Vertical Shaft Impact Crusher - Superior Performance from Leading Suppliers and Factory
Working Principle
In Kemai VSI series vertical shaft impact crusher, material of high speed is crushed by self-broken mutual friction. This type of impact crusher can not only be used for crushing but also for shaping of stones.
According to feeding method, the working of vertical shaft impact crusher can be divided into central feeding and central with cascade feeding; while the crushing method can be divided into “rock on rock’ and “rock on iron” according to material compressive strength. Therefore, there are four working forms: central with cascade feeding “rock on rock” and rock on iron”; central feeding “rock on rock” and rock on iron”.
Daily maintenance of VSI series vertical shaft impact crusher
(1) There should be special person responsible for the machine. Operators should be trained before operation, and also understand technical performance and familiar with the rules.
(2) Thin oil station use 35# bearing oil, oil amount is 150-190L. Change oil in 200hours first time, and then change oil every 1000 hours. When change oil, open the oil pipe, clean and dry it, change damaged seal mat.
(3) Driving V belt tensioning is moderate, make sure V belt strain evenly, motors in two sides are imbalanced, the electricity current is not more than 15A.
(4) Check hydraulic system frequently, maintain immediately if any abnormal conditions.
(5) Add calcium base grease to seal ring under bearing chamber regularly.
(6) Open the bearing tube and clean in 1000 hour’s normal running first time.
Technical parameters of VSI series vertical shaft impact crusher
| Model | VSI7611 | VSI8518 | VSI9526 | VSI1140 | |
|---|---|---|---|---|---|
| Capacity (t/h) | Central feeding with circular cascade feeding | 120-180 | 200-260 | 300-380 | 450-520 |
| Fully central feeding | 60-90 | 100-130 | 150-190 | 225-260 | |
| Max. feeding size (mm) | Soft material | < 35 | < 40 | < 45 | < 50 |
| Hard material | < 30 | < 35 | < 40 | < 45 | |
| Rotation speed (r/min) | 1700-1890 | 1520-1690 | 1360-1510 | 1180-1310 | |
| Model of Motor | Y250M-4 | Y280M-4 | Y315M-4 | Y315L2-4 | |
| Double motor power (KW) | 2×55 | 2×90 | 2×132 | 2×200 | |
| Overall dimension (L×W×H) (mm) | 3600×2248×2533 | 4378×2350×2667 | 4640×2650×2800 | 5570×2900×3000 | |
| Weight (t) | 10 | 12 | 16 | 25.6 | |
| Power supply | AC380V, 50Hz | ||||
| Lubrication Hydraulic Pressure station | Rate of flow (L/min) | 6 | |||
| Double oil pumps motor's power (KW) | 2×0.31 | ||||
| Safety Assurance | Double oil pumps assure enough oil supply; Switch off automatically without oil flow or oil pressure. Lower the temperature with cool water in summer raise the temperature with motor in winter. | ||||
| Overall dimension (L×W×H) (mm) | 820×520×1270 | ||||
| Power of oil Tank Heater (kW) | 2 | ||||
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Frequently Asked Questions (FAQ)
What is the crushing mechanism of the VSI series vertical shaft impact crusher?
A: The crusher works by accelerating material to high speeds, causing it to be crushed through self-broken mutual friction. This design is highly effective for both material crushing and stone shaping.
What are the feeding and crushing methods available for this equipment?
A: The crusher supports two feeding methods: central feeding and central with cascade feeding. Depending on the compressive strength of the material, it can perform two crushing methods: "rock on rock" and "rock on iron". These combine into four distinct working configurations.
What are the lubrication oil specifications and changing intervals?
A: The thin oil station uses 35# bearing oil with a capacity of 150-190L. The oil should be changed after the first 200 hours of operation, and subsequently every 1000 hours of running.
What safety assurances does the hydraulic lubrication station provide?
A: The system features double oil pumps to guarantee sufficient oil supply and automatically shuts down if no oil flow or pressure is detected. Additionally, it regulates temperature by using cooling water in summer and a heater in winter.
What are the motor specifications for the VSI9526 model?
A: The VSI9526 model is equipped with a Y315M-4 model motor, providing a double motor power of 2×132 KW to handle high-capacity crushing tasks.
How often should the V-belt and bearing tube be checked?
A: The driving V-belt tension should be checked to ensure even strain, keeping the motor current imbalance under 15A. The bearing tube should be opened and cleaned after the first 1000 hours of normal running.