Huatao Group-Vibrating Screen Technology Solution and Service для карьера & Горнодобывающая промышленность с 2008 года.
Material Properties Define Excitation Force
Particle Size : Coarse materials (e.g., ores) require low-frequency, high amplitude (5-8mm); fine powders (e.g., chemicals) need high-frequency, low amplitude (2-4mm).
Density & Moisture : High-density or sticky materials demand 30%-50% higher excitation force (e.g., iron ore screening <000000>ge;40kN).
Throughput Dictates Power
Formula: Excitation Force (kN) = Screen Load (tons) × 1.5~2.5 safety factor.
Example: 10 tons/h throughput → 15-25kN exciter + 5.5kW motor.
Parameter | Applications | Red Flags |
---|---|---|
Frequenz | Fine screening: 25-50Hz | High frequency risks bearing overheating—ensure enhanced cooling. |
Amplitude | Large particles: 6-8mm | Excessive amplitude shortens screen mesh life. |
Typ | Eccentric weights for heavy-duty; electromagnetic for precision | Hydraulic/pneumatic systems cost more and require complex maintenance. |
Material : Carbon steel (standard use) vs. stainless steel (corrosive/high-temperature environments).
Sealing : IP65 rating for dustproofing—mandatory in mining!
Bearings : SKF/FAG brands (2x lifespan, +30% cost).
Mounting Hole Alignment : Measure screen bolt holes—custom brackets needed if deviation >2mm.
Dynamic Balance Test : Avoid resonance; recalibrate if noise exceeds 85dB.
Variable Frequency Drive (VFD) : Cuts energy costs by 20% for fluctuating materials (+USD 420 cost).
Remote Monitoring : Add sensors to track bearing temperature/vibration anomalies in real time.
Factor | Economy Model | High-Performance Model |
---|---|---|
Exciter Cost | USD 2,100/unit | USD 3,900/unit |
Maintenance Cycle | 3 Monate | 6 Monate |
3-Year Efficiency | USD 7,000 | USD 4,900 (30% savings) |
Low-Price Scams
: Exciters
Vague Compatibility : Reject suppliers who omit installation blueprints!
Poor After-Sales : Brands with <1-year warranty have 40% failure rates.