30–50-tph-PE400x600-Jaw-Crusher-Production-Line
This solution is custom-tailored for the South African market, employing a two-stage, closed-circuit process featuring a "Jaw Crusher + Impact/Cone Crusher + Multi-layer Screening" configuration. The system boasts a rated processing capacity of 30–50 t/h and produces finished aggregates in four distinct size specifications: 0–5 mm, 5–10 mm, 10–20 mm, and 20–40 mm. The design strikes an optimal balance between investment costs, operational stability, and environmental compliance.
I. Overall Project Conclusions
This production line is capable of achieving continuous and stable operation under typical South African working conditions. It features low unit power consumption, produces finished aggregates with excellent particle shape, and entails low maintenance costs.
Designed and verified in accordance with the ISO 9001 Quality Management System and the technical requirements of the GB/T 14684-2022 standard for "Sand for Construction," this solution is ideally suited for regions in South Africa—such as Gauteng and Mpumalanga provinces—that are rich in river pebble resources.
II. Raw Materials and Product Conclusions
1. Raw Material Characteristics: Conclusions
River pebbles are medium-hard materials characterized by a high degree of roundness. Their crushing difficulty is higher than that of ordinary limestone but lower than that of basalt.
| Project Parameter | Value / Characteristic | Remarks |
| Material Type | Natural River Pebbles | Sourced via riverbed excavation |
| Particle Size Range | 100–500 mm | A small quantity >500 mm requires pre-treatment |
| Mohs Hardness | 6–7 | Medium-to-high hardness |
| Silt/Clay Content | 2%–5% | Recommended addition of a front-end grizzly screen for impurity removal |
Reference Standards: ASTM C33 / GB/T 14685-2022
2. Product Scheme: Conclusions
The system is capable of simultaneously producing four distinct grades of construction aggregates with well-balanced gradation, thereby meeting the relevant specifications and standards set by the South African Roads Agency and the Concrete Society.
| Finished Product Specifications | Application | Proportion (Typical) |
| 0–5 mm | Manufactured Sand / Fine Concrete Aggregate | 20%–25% |
| 5–10 mm | Road Pavement Base Course | 15%–20% |
| 10–20 mm | Coarse Concrete Aggregate | 30%–35% |
| 20–40 mm | Roadbed Fill Material | 20%–25% |
III. Process Flow Conclusion
Adopting a "Two-Stage Crushing + Single-Stage Closed-Circuit Screening" process represents the most cost-effective configuration scheme for operations with a capacity of 30–50 t/h.
1. Process Overview (Conclusion First)
PE500x750 Jaw Crusher
1. Primary Crushing: PE-500×750 Jaw Crusher—reduces raw stone (≤425 mm) to ≤100 mm;
PF1007 Impact Crusher
CS75 Symons Cone Crusher
2. Secondary Crushing: PF-1210 Impact Crusher or CS75 Cone Crusher—further reduces material to ≤40 mm;
3. Screening: 3YK-1548 Three-Deck Vibrating Screen—classifies four distinct finished product sizes in a single pass;
4. Closed-Circuit Loop: Oversized material is returned to the secondary crushing stage to maximize finished product yield.
2. Process Flow Diagram
Process Flow Diagram: 30–50 t/h River Pebble Crushing and Screening Station
Note: The equipment models listed above are recommended values and may be fine-tuned based on the specific site voltage requirements (380V/50Hz or 440V/60Hz).
IV. Equipment Selection Conclusion
1. Key Equipment List
| Equipment Name | Recommended Model | Key Parameters | Selection Rationale |
| Vibrating Feeder | GZD960×3800 | Processing Capacity: 50–100 t/h | Pre-screening + Uniform Feeding |
| Jaw Crusher | PE500×750 | Max. Feed Size: 425 mm | Mature and reliable technology; globally available spare parts |
| Impact Crusher | PF-1210 Rotor | Ø1250×1050 mm | Excellent product shape; low investment cost |
| Cone Crusher (Alternative) | CS75 Moving Cone Diameter | 900 mm | High wear resistance; suitable for high-hardness materials |
| Vibrating Screen | 3YK1548 | Screen Surface Area 4.8×1.5 m | Separates four distinct product sizes in a single pass |
2. Selection Summary
For the South African market, the "Jaw Crusher + Impact Crusher" combination is the primary recommendation, offering the shortest investment payback period. However, if the client places a higher priority on the service life of wear parts, the system can be upgraded to a Cone Crusher configuration.
V. Authoritative Data and Standard References
• Capacity Calculation Basis: GB/T 17671-1999 "Test Method for Strength of Cement Mortar" (Applied by analogy to crusher capacity calibration methods)
• Safety Regulations: OSHA 29 CFR 1926 Subpart O (Widely referenced at construction sites in South Africa)
• Environmental Standards: South Africa's *National Environmental Management Act* (NEMA) — Dust Emission Limits
About of Baichy Heavy Industry
Baichy Heavy Industry is a high-tech mining equipment company integrating R&D, manufacturing, sales, and after-sales service. Focusing on crushing, grinding, and mineral processing equipment, we provide professional solutions to our customers. We are ISO9001:2015 、certified, and our products include mobile crushing palnts, crawler crushing plant, construction waste crushing plants, jaw crushers, sand making machines, cone crushers, fine crushers, grinding mills, ball mills, etc., all with reliable performance to meet diverse project needs.
Our advantages:
• Professional pre-sales support: Free project design and comprehensive solutions to help you accurately select the right equipment;
• Comprehensive on-site service: Providing installation guidance and worker training to ensure smooth equipment commissioning;
• Reliable after-sales guarantee: A complete after-sales system, timely response to technical inquiries and equipment maintenance, ensuring long-term stable operation.
To protect your rights, please contact us through the following official channels for professional service:
Official Website Customer Service
https://wa.me/+8615093222637
Email: [email protected]
We are committed to providing high-quality equipment and full-cycle services to deliver comprehensive intelligent solutions for the global mining industry!
VI. Frequently Asked Questions (FAQ)
Q1: What is the actual hourly production output of this line?
A: Under standard operating conditions (medium material hardness, continuous feeding, and moisture content <5%), the system's stable production capacity is 30–50 t/h, with peak capacity reaching up to 55 t/h.
Q2: Given the voltage instability often experienced in South Africa, can this equipment adapt to such conditions?
A: Yes, it can. The motors can be customized for 380V/50Hz or 440V/60Hz operation; the electrical control cabinet features built-in soft-start and undervoltage protection functions, capable of accommodating voltage fluctuations of ±10%.
Q3: River pebbles are very hard; will they cause rapid wear on the equipment?
A: Yes, they will. However, in this solution, the blow bars of the impact crusher are made from high-chrome alloy (Cr26), and the jaw plates are made from Mn18Cr2; under normal operating conditions, their service life exceeds 800 hours.
Q4: How much space is required for the site?
A: The equipment itself occupies an area of approximately 30 × 15 meters. We recommend reserving an additional 200–300 m² each for the raw material stockpile and the finished product stockpile.
Q5: Is it possible to produce only two specific product sizes?
A: Yes. By adjusting the number of screen layers and the mesh aperture sizes on the vibrating screen, you can freely switch between producing 2 to 4 different finished product specifications.
Q6: Do you have any similar case studies?
A: Yes. In 2024, a 40 t/h river pebble processing line utilizing this exact same process was commissioned near Harare, Zimbabwe; it has been in operation for six months without any major malfunctions.
Q7: Is it convenient to ship the complete set of equipment by sea?
A: Yes, it is. The main processing line equipment can be loaded into one 40HQ container and one 20GP container; furthermore, the steel structural components feature a modular, disassembled design to help minimize shipping costs.
Q8: Is a large operating crew required?
A: No. The entire processing line requires a crew of only 3 to 4 people: 1 shift supervisor, 2 operators, and 1 maintenance technician (who may serve on a part-time basis).
