Working Principle
SZ‑450D Mobile Heavy Duty Screening Plant is a track‑mounted heavy‑duty scalping screen designed for large, rugged materials. Its core operation includes:
-
Vibrating screen box with multiple decks: Material is fed via conveyor into a robust screen housing equipped with high‑frequency vibrators. The vibration shakes particles through layered meshes, separating them by size into three distinct fractions.
-
Independent discharge conveyors: Three dedicated belt conveyors separately carry off the screened sizes, maintaining clear stockpiles and minimizing material mixing.
-
Crawler mobility with self-contained power: Mounted on a track system, the unit can traverse rough terrain and be driven directly into work zones. It features both diesel and electric power systems, allowing on-site operation without external infrastructure.
Application
- Mining and Ore Pre‑Screening
Ideal for removing oversized material before crushing stages, improving crusher life and throughput efficiency. - Quarries and Aggregate Processing
Efficiently classifies rock, gravel, and crushed stone, producing multiple aggregate sizes on-site and reducing logistics costs. - Construction & Demolition Recycling
Sorts mixed debris such as concrete, bricks, and asphalt into reusable fractions, promoting circular material usage. - Coal and Industrial Waste Segregation
Handles heavy, abrasive materials like coal and industrial by-products, separating them cleanly by size for further processing or disposal. - Complex Terrain Worksites
Its tracked chassis makes it suitable for mountainous regions, narrow sites, or urban demolition zones—no need for groundwork or external support.
Video Presentation
Product Parameter
| Project | Name | SZ-450D-DP |
| Chain plate feeder | model | 1038 |
| Specification (mm) | 1000×3800 | |
| Processing capacity (t/h) | 200-500 | |
| Maximum feed particle size (mm) | <500 | |
| Operation speed of apron feeder (m/s) | 0.2m/s | |
| Drive Type | C | |
| Power (kW) | 11 | |
| Screen box | Screen model | 1548 |
| Screen box length X width (mm) | 5150×1550 | |
| Number of screen layers (layers) | 2 | |
| Screen mesh specification | Confirm the screen deck configuration based on the customer’s aggregate conditions | |
| Amplitude (adjustable or not) | 8 mm-10mm | |
| Drive Type | dual-power | |
| Power (kW) | 7.5×2 | |
| Unloading height (adjustable or not) | adjustable | |
| Finished conveyor belt | Drive Type | dual-power |
| Power (kW) | 9.2×2 | |
| Unloading height (adjustable or not) | 1550-3200 | |
| Length × Width (mm) | 4900×1600 | |
| Side conveyor belt 1 | Drive Type | dual-power |
| Power (kW) | 7.5 | |
| discharge height | 2560 | |
| Length × Width (mm) | 6700×1000 | |
| Side conveyor belt 2 | Drive Type | dual-power |
| Power (kW) | 7.5 | |
| discharge height | 2730 | |
| Length × Width (mm) | 6700×1000 | |
| Overall Machine Parameters | Overall weight (t) | 32 |
| Total working power (KW) | 59.4 | |
| Hourly fuel consumption of the complete machine (L/h) | 13-15 | |
| Transportation size (mm) | 14500x3750x3450 | |
| Working size (mm) | 14500x8000x3450 |
More Details
1. Engine
- Standard Configuration: Equipped with a branded engine meeting China National III emission standard.
- Optional Upgrades: Can be upgraded to China Stage IV, EPA Tier 4, or Euro V engines to comply with local environmental regulations.
2. Delivery Terms
| Item | Terms |
|---|---|
| Delivery Time | Approx. 20–25 working days after down payment |
| Warranty | 12 months |
| Spare Parts | A full set of wear parts will be provided with the machine, and long-term supply is guaranteed |
| Service & Support |
|
FAQ
Q1: How many different sizes can the SZ-450D produce?
A1: The SZ-450D heavy duty scalper screener features a 2-deck screen, allowing it to separate materials into 3 different sizes simultaneously. Custom configurations with additional decks are also available upon request to produce more size fractions.
Q2: Can the SZ-450D handle wet and sticky materials?
A2: Yes. For materials with high moisture or clay content, we can equip the SZ-450D with self-cleaning devices such as rubber balls or mesh brushes to prevent screen blinding and ensure consistent screening efficiency. The chain plate feeder also helps handle difficult materials.
Q3: What is the difference between a scalper screener and an inclined screener?
A3: A scalper screener (like the SZ-450D) is designed for pre-screening raw materials before crushing — it handles large feed sizes (up to 500mm) and removes oversized or undersized material to improve crusher efficiency. An inclined screener (like the SS-7018) is used for final sizing of already-crushed materials with more precise separation. Use the SZ-450D before the crusher and the SS-7018 after.
Q4: What is the capacity of the SZ-450D?
A4: The SZ-450D has a processing capacity of 200-500 TPH with a maximum feed size of 500mm. The actual throughput depends on material type, moisture content, and the desired size separation. Its chain plate feeder and robust screen box ensure reliable operation even with large, abrasive materials.
Q5: How is the SZ-450D transported between sites?
A5: The SZ-450D is mounted on a track-mounted crawler chassis and is self-propelled, allowing it to navigate rough terrain and be driven directly into work zones. For long-distance transport on highways, it can be loaded onto a low-bed trailer. Its transportation dimensions are 14500×3750×3450mm.
