100tph River Stone Crushing & Washing Line in Dominican Republic
This 100 tph production line, combining jaw crushing and wheel-bucket sand washing, represents the optimal solution for small-to-medium-sized quarries and river-based manufactured sand projects in the Dominican Republic. Tailored to the region's typical operating conditions—characterized by high-hardness river gravel and aggregates containing silt and clay—Baichy Heavy Industry utilizes a PE500x750 primary jaw crusher, a 2YK1548 precision vibrating screen, and an XSD2610 high-efficiency sand washer. This configuration enables the simultaneous production of shaped crushed stone and high-purity manufactured sand, boosting sand yield by 15% while keeping fine sand loss below 3%.
I. Three Major Challenges for Aggregate Quarry Owners in the Dominican Republic
Quarry owners operating in the Dominican Republic (including infrastructure hotspots like Santo Domingo and Punta Cana) typically face three critical risks:
100tph River Stone Crushing & Washing Line in Dominican Republic
1. High clay content and significant fine sand loss
Local river-dredged materials or raw river gravel often contain substantial amounts of clay. Conventional spiral sand washers require massive amounts of water and frequently wash away high-quality fine sand (0.15–0.5 mm) along with the wastewater. This results in poor sand gradation and non-compliant grading zones, causing ready-mix concrete plants to reject the material.
2. Equipment corrosion due to tropical heat and salt spray
The Dominican Republic has a tropical marine climate. Standard mining equipment exposed to this hot, humid, and saline environment is prone to steel structure corrosion and cracking; motors frequently burn out due to poor heat dissipation or moisture ingress.
3. 60Hz grid incompatibility
The standard grid frequency in the Dominican Republic is 60Hz. Importing standard 50Hz motor equipment directly causes motors to run at excessive speeds, leading to severe overheating, burnout, and operational downtime.
II. How to Convert Equipment Specifications into Net Profit?
We reject empty marketing hype; below is a breakdown of the technical advantages of the core equipment in this 100tph crushing and washing line and the resulting net profit for the customer:
| Core Equipment | Key Technical Features | Customer Benefits |
| PE500x750 Jaw Crusher | 55kW-60Hz customized Siemens/WEG motor; feed opening 500x750mm, discharge opening 50-100mm. | Reduces upstream blasting costs by 15%: Large feed opening directly accepts river cobbles up to 425mm; 60Hz customized motor eliminates VFD energy losses, saving approx. $3,000 in annual maintenance costs. |
| 2YK1548 Vibrating Screen | Double-deck screen design, 1.5x4.8m size; highly wear-resistant manganese steel mesh; 20° inclination angle. | Precise product gradation: Separates three types of high-value aggregates in a single pass (e.g., 0-5mm manufactured sand, 5-20mm crushed stone, >20mm oversize material), meeting local high-standard specifications for roadbeds and concrete. |
| XSD2610 Wheel-Bucket Sand Washer | Impeller diameter 2600mm, drive assembly features oil-bath sealing; bucket-style washing structure. | 20% price premium on finished sand, generating an extra $25,000 annually: Minimal sand loss and high cleanliness yield perfect 0-5mm high-quality construction sand; low water circulation loss and high wash-water recovery rate. |
| Heavy-Duty Anti-Corrosion Belt Conveyor | Steel structure features zinc-rich primer and heavy-duty anti-corrosion topcoat; IP65 outdoor protection rating. | Extends equipment lifespan by 5 years: Effectively withstands the Dominican Republic's hot, humid, and salt-spray environment; reduces the frequency of replacing idlers and conveyor frames, ensuring stable, uninterrupted production. |
III. Core Parameter Configuration Table for 100 tph Crushing and Sand Washing Line
The configuration for this 100 tph production line, operating under typical river pebble processing conditions, is as follows:
| Equipment Name | Model | Quantity | Motor Power (kW) | Processing Capacity (t/h) | Core Function |
| Jaw Crusher | PE500x750 | 1 unit | 55 | 45–100 | Primary crushing; rapidly reduces large river pebbles/limestone to 50–100 mm |
| Circular Vibrating Screen | 2YK1548 | 1 unit | 15 | 50-150 | Grading; precisely separates materials into 0–5 mm, 5–20 mm, and oversize fractions |
| Wheel-bucket Sand Washer | XSD2610 | 1 unit | 11 | 50-120 | Sand washing; removes soil and impurities from 0–5 mm manufactured sand and performs dewatering |
| Belt Conveyor | B500 / B650 / B800 | Several | Calculated by length | 100 | Connects equipment stages; enables automated material transport in closed- or open-circuit configurations |
IV. Process Flow Analysis: From Raw Material to High-Value Aggregate
1. Primary Crushing: Raw river pebbles (≤425 mm) are evenly fed into the PE500x750 jaw crusher for primary crushing, with the output size controlled at approximately 50–100 mm.
2. Screening (Closed/Open Circuit): The coarsely crushed material is transported via belt conveyor to the 2YK1548 double-deck circular vibrating screen.
① First Screen Deck (e.g., 20 mm): Retains stones larger than 20 mm; these are either conveyed back to the jaw crusher for re-crushing or stockpiled separately as large-sized aggregate.
② Second Screen Deck (e.g., 5 mm): Separates high-quality 5–20 mm crushed stone, which is discharged directly as graded aggregate.
③ The undersize material (0–5mm), rich in fine sand and soil, proceeds directly to the subsequent sand-washing stage.
3. Washing and Dewatering: The 0–5mm mixed material flows into the washing tank of the XSD2610 wheel-bucket sand washer. Driven by the rotating impeller, sand grains tumble and collide within the water, separating the sand from soil and stone dust. Once scooped up by the impeller and preliminarily dewatered, the qualified manufactured sand is conveyed to the finished product stockpile. Wastewater and trace amounts of sludge are discharged through the overflow outlet; these can be routed to a fine sand recovery system or a settling pond to facilitate water recycling.
100tph River Stone Crushing & Washing Line in Dominican Republic
V. Equipment Selection: Who is this solution best suited for?
✅ Recommended Scenarios
• Small-to-medium-sized river sand/gravel plants and manufactured sand processing plants (*Graveras*) in the Dominican Republic.
• On-site mobile or semi-stationary crushing stations for small-to-medium infrastructure, road, and bridge construction projects.
• Integrated washing, screening, and shaping production lines for medium-hardness limestone or medium-soft crushed stone.
❌ Scenarios to Avoid
• If the material consists of extremely hard basalt or granite (Mohs hardness > 8), relying solely on a jaw crusher for intermediate crushing will cause rapid wear of the jaw plates (it is recommended to add a CS75 or HP series cone crusher after the jaw crusher for secondary crushing before screening).
• If the required production capacity exceeds 200 tph, upgrading to a PE600x900 jaw crusher is recommended.
FAQ
Q1: For use in the Dominican Republic, are your motors directly compatible with a 60Hz power supply?
A1: Yes. For Latin American markets such as the Dominican Republic and Mexico, Baichy Heavy Industry supplies its entire equipment line with motors specifically configured for 60Hz operation as standard (with options including brands like WEG and Siemens Beide). The motor windings and pole counts are optimized for 60Hz conditions, ensuring stable, long-term, full-load operation on local 220V/440V/480V 60Hz power grids and preventing the overheating and burnout issues common with standard 50Hz motors.
Q2: In a 100tph production line, what advantages does the XSD2610 wheel-bucket sand washer offer over a spiral sand washer?
A2: Its greatest advantages are a high fine-sand recovery rate and extremely low power consumption. During the washing process, spiral sand washers create turbulence in the water flow due to the spiral's thrust, washing significant amounts of fine sand (0.15–0.5mm) into the settling tank; this results in resource waste and poor particle size distribution. In contrast, the XSD2610 wheel-bucket sand washer keeps fine sand loss below 3%. Additionally, the XSD2610 requires only an 11kW motor, offering power savings of over 40% compared to spiral sand washers of equivalent capacity.
Q3: How are the belt conveyors and vibrating screens protected against rust in tropical climates characterized by heavy rain and salt spray?
A3: To address the rainy and coastal salt-spray climate of the Dominican Republic, Baichy subjects all steel structures to sandblasting for rust removal (meeting the Sa2.5 standard) and applies a coating system consisting of a zinc-rich epoxy primer and a heavy-duty anti-corrosive polyurethane topcoat. Furthermore, all motors feature high outdoor protection ratings (IP55/IP65), and bearing housings utilize a fully sealed oil-bath design, effectively preventing corrosion of core mechanical components caused by rain and salt-laden air.
Q4: How many belt conveyors are required for this 100tph production line?
A4: In a typical configuration, a standard 100 tph crushing and washing line usually requires 5 to 6 belt conveyors: a feed conveyor, a conveyor from the jaw crusher to the screen, a return conveyor (for oversize material from the screen back to the crusher), a conveyor from the screen to the sand washer, a finished sand stockpiling conveyor, and a finished crushed stone stockpiling conveyor. We will design conveyor lengths and inclinations to maximize space efficiency based on your site's actual topography and stockpile layout.
Q5: The soil mixed with the river pebbles at our site is very sticky; can the XSD2610 wash it clean?
A5: If the soil content is within 10% and consists mostly of loose surface mud, the XSD2610 can achieve a cleaning efficiency of over 98%. However, if your raw material contains highly sticky red clay or mud-encrusted lumps, we recommend adding a trommel scrubber at the feeding stage or using high-pressure water jets for pre-washing before the sand washer to ensure optimal results.
Q6: What kind of after-sales support does Baichy provide in Latin America?
A6: We have established successful project references in Latin American countries such as the Dominican Republic and Mexico. We provide:
① civil engineering and foundation design drawings;
② rapid international direct shipping of 60Hz-compatible spare parts (jaw plates, screen mesh, sand washer bucket liners, conveyor belts);
③ 24-hour remote technical guidance in English and Spanish, with the option to dispatch Chinese engineers to the site for installation and commissioning assistance if necessary.
