How to Choose KD-50 to KD-200 Purification Systems for Different Strata

Slurry treatment systems (KD series) are vital in trenchless and foundation engineering, as selecting the right unit directly impacts timelines and profits. When facing the KD-50, KD-100, and KD-200, how can contractors make a precise selection? The key lies in matching the strata material properties with the processing capacity requirements.

KD-50: The Flexible Choice for Small-scale Projects

If your project involves small slurry balance shields, rotary bored piling, or horizontal directional drilling (HDD) with low processing volume requirements, the KD-50 compact slurry separation system is the optimal choice.
Application Scenarios: Urban pipeline pipe-jacking, pile foundation construction in narrow areas.
Selection Logic: Relatively stable strata with extremely high requirements for equipment footprint. With its minimal physical dimensions and rapid deployment capability, the KD-50 minimizes transportation and installation costs.

KD-100: The Balanced Tool for Small and Medium-sized Projects

The KD-100 system is specifically designed for small and medium-sized pile foundations and shield projects, with a structure that emphasizes modularity.
Core Configuration: Equipped with a combination shale shaker and a 12″ diameter desander cyclone.
Selection Logic: When the sand content in the strata is high, the secondary purification advantage of the KD-100 becomes prominent. After coarse screening, the mud enters the desanding module where the pump set effectively removes sand, followed by fine screening for drying and discharge, balancing processing speed with purification precision.

KD-200: The Performance Benchmark for Large and Complex Strata

For large-scale diaphragm walls, trench cutters (double-wheel milling), or high-intensity shield tunneling, the KD-200 slurry treatment system provides stronger throughput and a more capable solution for challenging strata.
Application Scenarios: High water content, high clay content, or complex and variable strata environments.
Selection Logic: When the processing requirement is large (e.g., above 200m³/h) and the strata materials are complex, the KD-200 utilizes a wider screen surface and more powerful drive configuration to ensure no mud leakage or clogging under heavy-duty loads.

Selection Summary

Space Considerations: Choose KD-50 for extremely limited sites.
Sand Content: Choose KD-100 with the desanding module for thick sand layers.
Project Scale: Choose KD-200 directly for large diaphragm walls or high-capacity operations.

The KOSUN KD series supports full customization of electrical systems and D50 cut point designs. Regardless of the model selected, it ensures your project achieves maximum efficiency while remaining environmentally compliant.


The slurry separation system is an indispensable supporting facility in shield construction

The slurry separation system is an indispensable supporting facility in modern shield construction. Shield construction refers to the use of shield tunnel boring machines to excavate tunnels on railways, highways, subways, municipalities, water and electricity and other pipes. With the improvement of shield technology, the selection of equipment and technology of the slurry separation system in shield construction have put forward higher requirements.

slurry separation system
slurry separation system

The slurry separation system mainly includes a shale shaker, a cyclone screen device and a filter press device, the vibrating screen device and the cyclone screen device are connected, the cyclone screen device and the filter press device are connected, and the connection mode is stacked connection Or connect with conveying equipment. The KOSUN shield slurry separation system can perform different separation treatments according to different particle sizes, make full use of the favorable particles in the excavated soil, improve the self-making capacity of the system, and effectively realize the slurry separation system in the shield tunneling, and the separation latter water is re-injected into the muddy water system for circulation. The equipment can be flexibly adjusted according to different terrain conditions. The convenient construction operation reduces the trouble of the slurry separation system occupying a large area and reduces the pollution of the mud to the environment.

The modern slurry separation system pays more attention to environmental protection in design, and highlights the concept of environmental protection in various aspects such as pulping, slurry mixing, separation equipment selection, and waste discharge. KOSUN’s slurry separation system is built based on the previous construction experience at home and abroad and the high-standard rationalization suggestions put forward by customers. With scientific and technological innovation as the standard, the current situation of low separation level is improved by increasing the configuration standard of the desilting device, so that the separation particle size reaches about 15 microns, which greatly reduces the amount of slurry preparation and reduces engineering costs.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
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