SWS-200 Sand Screening Machine

Integral screen sand machine, also known as sand and stone separator, is suitable for sand and stone separation equipment in rivers, reservoirs and coal yards. It is composed of hopper, rack, reducer, conveyor belt, cylinder screen, engine or electric machine. The machine is simple in structure, economical and applicable, and easy to operate. It is divided into drum type sand sifter, water washing drum type sand sifter, vibrating screen type sand sifter and so on.

Product Overview
CATHAY sand screening machine is an innovative equipment integrating screening, washing, dehydration and fine sand recovery, specially designed for processing machine-made sand, river sand and sea sand. Through modular integrated design, a single device can complete the workflow of three traditional devices, reducing site occupancy by 60% and investment costs by 45%.

Core advantages
1. Four-in-one system
- Grading and screening: multi-layer vibrating screen (2-4 layers), grading accuracy 0.075-20mm
- Powerful water washing: double spiral grinding wheel, processing capacity 50-300t/h
- High-efficiency dehydration: high-frequency dehydration screen, finished sand moisture content <8%
- Fine sand recovery: cyclone + dehydration screen combination, recovery rate ≥95%
2. Energy-saving and environmentally friendly design
- Water circulation system: water consumption is reduced by 70% (only 1-1.5m³ water/ton sand)
- Zero pollution discharge: equipped with sludge filter press (optional)
- Noise reduction structure: overall noise ≤75dB
3. Intelligent control system
- PLC centralized control: one-button start and stop of all modules
- Fault self-check: real-time monitoring of bearing temperature, water pressure and other parameters
- Production statistics: automatic recording of shift production/daily production data
4. Durable structure
- Wear-resistant material: The screen plate is made of NM400 wear-resistant steel, with a service life of ≥18 months
- Anti-blocking design: Screen self-cleaning device
- Module quick change: Key component replacement time <2 hours

Technical parameters
| Module | Parameter details |
| Screening system | Vibration motor power: 2×7.5kW |
| | Screen surface size: 1800×4800mm |
| Sand washing system | Spiral diameter: Φ1500mm |
| | Processing capacity: 100t/h |
| Dewatering system | Dewatering screen area: 2.5m² |
| | Finished sand moisture content: ≤8% |
| Recovery system | Cyclone specifications: Φ350mm |
| | Fine sand recovery rate: ≥95% |

Compared with traditional solutions
| Indicators | CATHAY integrated machine | Traditional production line |
| Floor area | 200㎡ | 500㎡ |
| Installed power | 110kW | 180kW |
| Operators | 1-2 people | 4-5 people |
| Construction period | 3 days | 15 days |

Application scenarios
✔ Sand and gravel plant: cleaning and grading of machine-made sand aggregates
✔ Sand mining site: desludging and removing river sand/sea sand
✔ Construction waste: cleaning and recycling of recycled aggregates
✔ Mine tailings: resource utilization of fine particles