Screen-Sand Machine: Feed, Cut Size and Capacity
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The useful comparison is how the machine will split the actual feed into saleable fractions, including any washing step required by the product spec.
Provide feed grading, target fractions, required capacity, moisture and the site's available water and space.
The sand screening machine is mainly suitable for sand and gravel separation equipment in rivers, reservoirs, and coal yards. Its working principle is that a loader scoops raw material into the feeding hopper, passes it into the rotary screen, the rotary screen separates the raw material, sand is conveyed to the sand outlet, and stones are conveyed to the stone yard outlet, completing the work. This series of sand screening machines has a simple, economical, and practical structure and is easy to operate. Why choose a sand screening machine? First, simple, economical, and practical structure, low equipment investment cost, suitable for small and medium-sized sand and gravel yards and river sand mining operations. Second, easy operation, user-friendly, with low technical requirements for operators. Third, good separation effect, effectively separating sand and stones through the rotary screen with smooth discharge. Fourth, well-equipped supporting devices, standard with remote control and vibrator, improving work efficiency and anti-blockage capability. Fifth, complete model range, covering four specifications: 16-type, 20-type, 30-type, and 50-type, with working efficiency from 20 m³/h to 120 m³/h, meeting different scales of sand and gravel separation needs. The sand screening machine is mainly used for sand and gravel separation in river sand mining operations, reservoir dredging and sand processing, coal and impurity separation in coal yards, screening and classification of construction sand and gravel, and any work scenarios that require separating raw material by particle size. The users who need sand screening machines include river sand mining enterprises and individuals, reservoir dredging project contractors, coal yard operators, sand and gravel yards and aggregate producers, construction and road/bridge engineering units, equipment distributors and stockists, and overseas infrastructure and sand mining project purchasers. When should you choose or replace a sand screening machine? When river, reservoir, or coal yard operations require sand and gravel separation equipment; When simple-structured, low-investment, easy-to-operate screening equipment is needed; When old screening equipment is severely worn, has poor separation effect or insufficient processing capacity; When newly constructed small and medium-sized sand and gravel yards need economical and practical sand and gravel separation equipment; When export projects require sand screening machines compatible with overseas voltage and river/coal yard working conditions. How to choose a sand screening machine? Step 1: Confirm the application scenario. The sand screening machine is mainly suitable for sand and gravel separation in rivers, reservoirs, and coal yards. Step 2: Confirm work efficiency requirements. Choose 16-type for 20-25 m³/h, 20-type for 30-35 m³/h, 30-type for 60-80 m³/h, or 50-type for 100-120 m³/h according to the production line capacity requirements. Step 3: Confirm the overall dimensions and choose the corresponding model within the range of 5.0×1.2×2.1m to 9×1.55×3.2m according to the site size; Step 4: Confirm the hopper and conveyor belt dimensions and choose a 2.1×1.1m to 3.4×1.55m hopper and 540-1000mm wide conveyor belt based on the forklift specifications and material particle size; Step 5: Confirm the screen mesh and sieve hole dimensions, with screen sizes from 1.5×0.6m to 2.5×0.8m, and sieve hole sizes from 1cm-1.5cm (replaceable), selected according to the finished product granularity requirements; Step 6: Confirm the motor power, choosing a 4kW to 11kW motor based on processing capacity; Step 7: Confirm supporting devices, standard with wireless remote control and vibrator to improve operational efficiency; Step 8: Confirm the installation site, which should be flat, solid, and able to support the equipment weight and operational load.
Sand Screening Machine Specifications and Performance Parameter Table
| Model | Overall Dimensions (m) | Motor Power (kW) | Hopper (m) | Conveyor Belt (mm) | Screen Size (m) | Sieve Hole Size (cm) | Work Efficiency | Supporting Devices |
|---|---|---|---|---|---|---|---|---|
| Model 16 Sand Screening Machine | 5.0×1.2×2.1 | 4 kW | 2.1×1.1 | Width 540 | 1.5×0.6 | 1cm (replaceable) | 20 m³/h - 25 m³/h | Wireless remote control, vibrator |
| Model 20 Sand Screening Machine | 5.1×1.2×2.4 | 4 kW | 2.4×1.2 | Width 600 | 1.5×0.6 | 1cm (replaceable) | 30 m³/h - 35 m³/h | Wireless remote control, vibrator |
| Model 30 Sand Screening Machine | 7.5×1.45×2.65 | 7.5 kW | 3m×1.45m | Width 800 | 2.08 | 1.2cm (replaceable) | 60 m³/h - 80 m³/h | Wireless remote control, vibrator |
| Model 50 Sand Screening Machine | 9×1.55×3.2 | 11 kW | 3.4m×1.55m | Width 1000 | 2.5×0.8 | 1.5 cm (replaceable) | 100 m³/h - 120 m³/h | Wireless remote control, vibrator |
General Technical Parameter Table
| Parameter | Specification |
|---|---|
| Type | Sand Screening Machine (Sand and Gravel Separation Equipment) |
| Applicable Scenarios | River, Reservoir, Coal Yard Sand and Gravel Separation |
| Model | Model 16 / Model 20 / Model 30 / Model 50 |
| Dimensions | 5.0×1.2×2.1 m to 9×1.55×3.2 m |
| Motor Power | 4–11 kW |
| Hopper Size | 2.1×1.1 m to 3.4×1.55 m |
| Conveyor Belt Width | 540–1000 mm |
| Screen Size | 1.5×0.6 m to 2.5×0.8 m |
| Screen Opening Size | 1 cm–1.5 cm (replaceable) |
| Work Efficiency | 20–120 m³/h |
| Supporting Devices | Wireless Remote, Vibrator |
| Core Advantages | Simple structure, economical and practical, easy to operate, good separation effect |
Dimension Diagram and Key Dimensions: `[Image: /images/screen-sand-machine-dimension-drawing.webp]`
Material Table
| Component | Standard Material | Optional Material | Description |
|---|---|---|---|
| Rotating Screen / Mesh | High Manganese Steel, Carbon Steel | Stainless steel, wear-resistant steel plate | Core screening components, highly wear-resistant |
| Frame/Bracket | High-strength carbon steel | Hot-dip galvanized | Bear the self-weight and operating load of the equipment |
| Drive shaft | 40Cr/45# steel | Alloy steel | Quenching and tempering treatment, smooth transmission |
| Bearing | Self-aligning roller bearing | Double-row cylindrical roller bearing | Withstand heavy loads and impacts |
| Motor | Full copper coil motor | Explosion-proof motor | Standard three-phase asynchronous motor |
| Conveyor belt | Rubber belt | Steel wire rope core rubber belt | Wear-resistant, conveying materials |
| Hopper | Carbon steel | Wear-resistant steel plate | Bear raw materials, wear-resistant |
| Control box | Carbon steel/Stainless steel | Rainproof and dustproof type | Equipped with wireless remote control and vibrator |
Installation method: The sand screening machine needs to be installed on a flat and solid site or foundation. After positioning the equipment, adjust the level to ensure smooth operation of the rotating screen and conveyor belt; the hopper, conveyor belt, and rotating screen must be connected in order to ensure raw materials smoothly enter and complete sand and gravel separation; the motor and transmission parts must be connected to ensure coaxiality or suitable belt tension for smooth operation; the matching wireless remote control and vibrator must be correctly wired and debugged for remote control and blockage prevention; after installation, a no-load test run must be performed to check whether the rotating screen rotates smoothly, the conveyor belt operates normally, and whether there is abnormal vibration or noise, and to confirm that the screen holes are unobstructed; during load test operation, gradually increase the feeding amount, observe the separation effect and motor current, and ensure it does not exceed the rated current; during maintenance of the sand screening machine, all machinery must be completely stopped before performing maintenance; a dust removal system must be equipped to reduce dust pollution.
Application Scenarios Table
| Industry | Application | Recommended Configuration | Key Requirements |
|---|---|---|---|
| River Sand Mining | River Sand and Gravel Separation | Type 16–50 Sand Screening Machine | Simple structure, easy to operate, high work efficiency |
| Reservoir Dredging | Reservoir Sand and Gravel Processing | Type 20–50 Sand Screening Machine | High processing capacity, good separation effect |
| Coal Yard | Coal and Impurity Separation | Type 20–50 Sand Screening Machine, Vibrator | Not easy to clog, low dust |
| Sand and Gravel Yard | Construction Sand and Gravel Screening and Classification | Type 16–30 Sand Screening Machine | Smooth discharge, controllable particle size |
| Construction Site | On-site Sand and Gravel Separation | Type 16–20 Sand Screening Machine | Easy to move, simple to operate |
| Road and Bridge Projects | Sand and Gravel Aggregate Screening | Type 30–50 Sand Screening Machine | High processing capacity, efficient |
Note: The sand screening machine is mainly suitable for sand and gravel separation in rivers, reservoirs, and coal yards. The screen hole size is 1cm-1.5cm (replaceable) and can be adjusted according to material requirements. When servicing the sand screening machine, all machinery must be completely stopped before maintenance. Explosion-proof motors should be selected in explosive environments. For highly abrasive materials, it is recommended to use high manganese steel or wear-resistant steel plate screens.
## Technical FAQ
1. What is a sand screening machine?
A sand screening machine is mainly used for sand and gravel separation in rivers, reservoirs, and coal yards. This series of sand screening machines is simple, economical, easy to operate.
2. What is the working principle of a sand screening machine?
The forklift shovels raw material into the feeding hopper, which is conveyed into the rotary screen. The rotary screen separates the raw material; sand is conveyed to the sand outlet, and stones are conveyed to the stone yard. Work is complete.
3. What models of sand screening machines are available?
Sand screening machine models include 16-type, 20-type, 30-type, and 50-type.
4. What is the working efficiency of the sand screening machine?
The 16-type is 20-25 cubic meters per hour, the 20-type is 30-35 cubic meters per hour, the 30-type is 60-80 cubic meters per hour, and the 50-type is 100-120 cubic meters per hour.
5. What is the motor power of the sand screening machine?
The 16-type and 20-type use 4 kW, the 30-type uses 7.5 kW, and the 50-type uses 11 kW.
6. Can the sieve mesh size of the sand screening machine be changed?
Yes, the sieve mesh size is 1 cm-1.5 cm (replaceable) and can be adjusted according to material requirements.
7. What auxiliary equipment does the sand screening machine have?
Auxiliary equipment includes a wireless remote control and a vibrator.
8. What scenarios is the sand screening machine suitable for?
It is suitable for sand and gravel separation equipment in rivers, reservoirs, and coal yards.
9. What precautions should be taken when using the sand screening machine?
When repairing the sand screening machine, all machinery must be completely stopped before proceeding.
10. What are the dimensions of the sand screening machine?
The 16-type is 5.0×1.2×2.1 m, the 20-type is 5.1×1.2×2.4 m, the 30-type is 7.5×1.45×2.65 m, and the 50-type is 9×1.55×3.2 m.
11. What are the hopper dimensions of the sand screening machine?
The 16-type is 2.1×1.1 m, the 20-type is 2.4×1.2 m, the 30-type is 3×1.45 m, and the 50-type is 3.4×1.55 m.
12. What is the conveyor belt width of the sand screening machine?
The 16-type has a width of 540 mm, the 20-type 600 mm, the 30-type 800 mm, and the 50-type 1000 mm.
13. What is the screen size of the sand screening machine?
Models 16 and 20 are 1.5×0.6m, model 30 is 2.08m, and model 50 is 2.5×0.8m.
14. Does the sand screening machine require a foundation?
The sand screening machine needs to be installed on a flat and solid ground or foundation. After the equipment is in place, adjust the level to ensure smooth operation of the rotating screen and conveyor belt. The structure is simple and the foundation requirements are relatively low, but the site must be level and capable of bearing the weight of the equipment and operational load.
15. What are common faults of the sand screening machine?
Rotating screen blockage (high mud content in raw material or too fast feeding), conveyor belt deviation (uneven tension or damaged rollers), high stone content in sand (damaged screen or oversized screen holes), motor overheating (overload or unstable voltage).
16. What is the difference between a sand screening machine and a trommel screen?
Trommel screens are suitable for particle grading processes in various industries at home and abroad, featuring a small installation tilt angle, low blockage probability, low noise, less dust pollution, stable operation, high screening efficiency, and large output. Sand screening machines are mainly used for sand and gravel separation in rivers, reservoirs, and coal yards. They have a simple, economical, and practical structure and are easy to operate.
17. Can the sand screening machine be customized?
It can be customized in motor power, screen material (high manganese steel/stainless steel/wear-resistant steel plate), screen hole size, overall dimensions, conveyor belt width, supporting devices (wireless remote control/vibrator), explosion-proof motor, etc.
18. How to maintain the sand screening machine?
Regularly check the wear of the screen and replace in time; regularly check the lubrication of bearings and add or replace grease; regularly check the tension of the conveyor belt; regularly check if foundation bolts and connecting bolts are loose; regularly clean accumulated material and foreign objects inside the screen and rotating screen.
19. Does the sand screening machine comply with RoHS and REACH?
Standard equipment meets RoHS and REACH regulations and does not contain SVHC substances of very high concern. Refer to the product test report for specifics.
20. How to choose the model of a sand screening machine?
Determine applicability based on the application scenario (river channel, reservoir, coal yard), select the model corresponding to 20-120 cubic meters/hour according to the production line capacity requirements, choose the overall dimensions from 5.0×1.2×2.1m to 9×1.55×3.2m based on the site size, select the hopper and conveyor belt size according to the loader specifications and material particle size, and choose the sieve hole size according to the finished product granularity requirements.
Technical FAQ
What determines screen capacity?
Feed rate, bulk density, moisture, particle-size distribution, deck area and required separation cut all affect capacity.
Do I need washing or only dry screening?
Choose washing when clay or adhered fines affect product quality. Confirm water source, recycling and discharge treatment.
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