High-Performance Desilter for Advanced Drilling Fluid Management
ZC Series Desilter: Enterprise-Grade Third-Stage Solids Control Solution
The ZC series Desilter serves as the third-stage solids control device in multi-stage mud purification systems, engineered specifically for deep and ultra-deep well drilling operations. This critical equipment effectively separates particles ranging from 15 to 44μm, delivering a robust processing capacity of 60 to 240m³/h.
Our units, which are produced by Shaanxi Xixian New Area Zhongcheng Machinery Manufacturing Co., Ltd., have high wear-resistant polyurethane hydrocyclones that provide outstanding dependability and endurance under harsh conditions. The clamp connection design reduces downtime during maintenance operations by enabling quick installation and removal.
Our units are approved by TÜV and BV, certified to ISO 9001/14001/45001 standards, and come with a one-year guarantee, installation instructions, and extensive technical support. For safe transportation to drilling sites across the globe, each unit is expertly packaged with plastic film, rainproof tarpaulins, and optional pallets or wooden crates.

Understanding Desilter Technology in Drilling Operations
One of the most enduring problems in drilling is the buildup of ultra-fine solids in drilling fluids, which is addressed by this specialist solids management unit. This device targets those troublesome fine materials between 15 and 44 microns, whereas shale shakers collect large cuttings and desanders remove medium-sized particles.
If these tiny particles are allowed to circulate, the qualities of your drilling fluid will be compromised. They raise the density of the mud above what is required. They hasten the deterioration of your downhole tools and pumps. They raise operating expenses and lower penetration rates.
This equipment solves this through precisely engineered hydrocyclones. These cone-shaped devices create centrifugal force that separates solids from liquids. The cleaned fluid returns to your active system. The solids discharge for proper disposal or further processing.
This third-stage separation is essential for maintaining optimal drilling fluid performance. It protects your downstream equipment. It extends mud life and reduces replacement costs. Most importantly, it keeps your drilling operations running efficiently.
Core Applications Across Drilling Sectors
Oil and Gas Drilling Operations
Your deep-well and ultra-deep well projects demand exceptional mud quality. Our desilter hydrocyclone units excel in both water-based mud (WBM) and oil-based mud (OBM) recovery applications.
In offshore platforms, they manage weighted mud systems under challenging conditions. They prevent differential sticking caused by excessive solids loading. They maintain the delicate balance of mud properties that keeps your drill string moving freely.
For onshore operations, these units integrate seamlessly into complete Solids Control Systems. They work continuously to preserve your expensive drilling fluids while removing formation cuttings.
Horizontal Directional Drilling (HDD)
Trenchless drilling projects in urban environments require efficient bentonite recycling. Our equipment processes heavy slurry loads typical of HDD operations.
You can recycle and reuse drilling fluids rather than constantly mixing fresh batches. This reduces your material costs significantly. It also minimizes waste disposal expenses and environmental impact.
The compact design fits easily on congested job sites. The low-noise operation meets urban noise restrictions.
Mining and Geothermal Applications
Complex mineral recovery circuits benefit from consistent equipment performance. These units handle high-solid-concentration feeds without clogging or performance degradation.
Geothermal drilling operations, with their elevated temperatures, demand equipment that withstands thermal stress. Our polyurethane hydrocyclones maintain structural integrity at temperatures up to 120°C.
Technical Specifications and Performance Parameters
| Model |
ZCQJ/100×4 |
ZCQJ/100×8 |
ZCQJ/100×10 |
ZCQJ/100×12 |
ZCQJ/100×16 |
| Hydrocyclone Diameter (mm) |
100 |
| Hydrocyclone Qty (piece) |
4 |
8 |
10 |
12 |
16 |
| Working Pressure (MPa) |
0.2~0.45 |
| Separation Particle Size (μm) |
15~44 |
| Capacity (m³/h) |
≤60 |
≤120 |
≤150 |
≤180 |
≤240 |
| Applicable Bottom Shaker |
ZCZS/TR |
Shaker Screen Size: 600×1120mm; Motor: 0.8kW |
| ZCZS/T |
Shaker Screen Size: 585mm×1165mm; Motor: 0.8kW |
| Liquid Inlet DN (mm) |
100 |
125 |
150 |
150 |
150 |
| Liquid Outlet DN (mm) |
125 |
150 |
200 |
200 |
200 |
| Matching Centrifugal Pump (kW) |
45 |
55 |
55 |
55 |
75 |
| Theoretical Weight (kg) |
600 |
700 |
1230 |
1250 |
1950 |
| Dimension (mm) (L×W×H) |
1500×1150×2000 |
1500×1150×2200 |
1630×1140×1980 |
1800×1650×2400 |
2800×1780×2400 |
Superior Design Features and Competitive AdvantagesPremium Anti-Corrosion Construction
Your equipment faces constant exposure to abrasive drilling fluids and corrosive additives. Our desilters incorporate specially developed high-strength alloys resistant to complex medium erosion.
The high wear-resistant polyurethane hydrocyclones deliver extended service life. You replace components less frequently. You reduce maintenance costs and inventory requirements.
Exceptional Separation Efficiency
The precisely engineered vortex finder minimizes turbulence within each hydrocyclone. This maximizes separation efficiency at the critical D50 cut point.
You achieve cleaner drilling fluids with lower residual solids content. Your mud maintains designed properties longer. Your downstream equipment experiences less wear and fewer failures.
Modular Manifold Design
The flexible configuration allows you to scale capacity by adding or removing hydrocyclones. Match the equipment precisely to your project requirements.
The manifold ensures uniform fluid distribution across all cones. Each hydrocyclone operates at optimal efficiency. You avoid the performance loss that occurs with uneven flow patterns.
Operational Stability
Compact and balanced construction minimizes vibration during operation. The low-noise design creates a safer, more comfortable work environment.
The low failure rate reduces unplanned downtime. Your drilling operations continue smoothly without interruptions for equipment repairs.
Rapid Maintenance Access
Stainless steel locking clamps enable quick hydrocyclone replacement without special tools. Your maintenance team completes routine inspections and component changes efficiently.
The simple assembly and disassembly process reduces the technical skill level required. You need less specialized training for your maintenance personnel.

Professional Installation and Comprehensive Support Services
Installation and Commissioning
Our technical team provides detailed installation guidance tailored to your specific site conditions. We supply complete engineering drawings, flowcharts, and component diagrams.
Professional commissioning ensures your unit operates at peak efficiency from day one. We verify all performance parameters and train your operators on proper operation procedures.
Technical Documentation Package
You receive comprehensive operation and maintenance manuals in your preferred language. These documents detail routine maintenance procedures, troubleshooting guides, and performance optimization techniques.
Our technical support extends beyond installation. We provide ongoing consultation to help you maximize equipment performance and drilling fluid quality.
Warranty and After-Sales Commitment
Every desilter comes with a 1-year comprehensive warranty covering manufacturing defects and component failures. Our responsive service team addresses warranty claims quickly to minimize your downtime.
We maintain adequate spare parts inventory for rapid shipment. Critical wear components ship within 3 days for in-stock items.

Quality Certifications and Compliance Standards
Shaanxi Xixian New Area Zhongcheng Machinery Manufacturing Co., Ltd. maintains rigorous quality management systems. Our production adheres to:
- ISO 9001 Quality Management System for consistent manufacturing excellence
- ISO 14001 Environmental Management System for sustainable production practices
- ISO 45001 Occupational Health and Safety Management System for workplace safety
- HSE Standards for health, safety, and environmental protection
- TÜV and BV Certification validating product quality and performance
- API RP 13C Compliance ensuring compatibility with international drilling specifications
These certifications demonstrate our commitment to delivering reliable, high-performance equipment that meets global industry standards.

Frequently Asked Questions
Q1: What operating pressure should I maintain for optimal performance?
A1: Keep the feed pressure between 0.25 and 0.35 MPa, or around 75 to 80 feet of head. For efficient particle separation, this pressure range guarantees the right centrifugal force. Regularly check your pressure gauge and modify the feed pump's speed as necessary.
Q2: Why is my unit discharging in a rope pattern instead of a spray?
A2: A roping discharge indicates the apex is overloaded with high solids concentration or partially plugged. Try increasing the apex orifice size or reducing feed density. This discharge pattern signals the hydrocyclone cannot process the current solids loading effectively.
Q3: How long do polyurethane hydrocyclones typically last?
A3: High-quality polyurethane cyclones typically have a service life of 1,000 to 2,000 operating hours. The actual duration is determined on the solids loading and abrasiveness of the mud. Cyclones should be routinely inspected for internal step wear or pitting that suggests replacement is necessary.
Q4: Can I use this unit when drilling with weighted mud?
A4: Yes, but exercise caution. It will remove barite particles (5-75 microns) along with undesired solids. Many operators bypass the unit when using weighted mud or install an underflow shaker to recover and return barite to the active system.
Q5: How do I know when hydrocyclone apex orifices need replacement?
A5: Keep an eye on the solids content and discharge pattern. Properly sized apexes have probably worn large when they start to produce muddy, watery discharge rather than comparatively dry solids. When the apex opening diameter is 20–30% larger than the manufacturer's standards, replace it.
Q6: What maintenance schedule should I follow?
A6: Inspect hydrocyclones daily for wear, secure mounting, and proper discharge patterns. Check manifold connections weekly for leaks. Replace worn apex and vortex finder inserts based on inspection findings. Perform thorough cleaning and inspection every 500 operating hours.
Q7: How does this unit integrate with my existing solids control system?
A7: This equipment installs downstream of your desander and upstream of centrifuges in a typical four-stage system. Feed pumps transfer drilling fluid from the mud tank through its manifold. Cleaned fluid returns to the active system while separated solids discharge for disposal or further processing.
Global Logistics and Secure Packaging
We understand that equipment must arrive at your drilling site in perfect condition. Every unit receives professional packaging designed for international transport.
Our standard packaging includes heavy-duty plastic film protection, waterproof tarpaulins, and secure strapping. For overseas shipments or particularly sensitive equipment, we provide optional pallets or custom wooden crates.
We maintain strong partnerships with reliable logistics providers. Convenient access to Tianjin and Shanghai ports ensures efficient international shipping. In-stock units ship within 3 days. Custom-configured orders typically deliver within 15 days.

Why Choose Zhongcheng Machinery Manufacturing
With over 30 years of machinery manufacturing expertise, we bring deep industry Knowledge to every product we design. As a direct manufacturer, we control every aspect of quality and can offer competitive factory-direct pricing.
Our 6,300 square meter production facility in Xingping City produces approximately 200 complete mud circulation systems annually. This substantial capacity ensures we can meet your project timelines without compromising quality.
We offer flexible customization of dimensions, configurations, and motor brands. Whether you prefer domestic or international component suppliers, we adapt to your specifications.
Our comprehensive product range means you can source your entire solids control system from a single trusted supplier. We provide integrated solutions rather than forcing you to coordinate multiple vendors.
Contact Our Team Today
Ready to improve your drilling fluid management with a high-performance desilter? Our experienced technical team is ready to discuss your specific application requirements and recommend the optimal configuration.
Contact Us at oliver@zcgukong.com for technical specifications, pricing information, and delivery schedules. Let us help you enhance drilling efficiency and reduce operational costs.