Jul 15, 2026
When selecting solids control equipment, many customers ask: what is the difference between a desander and a desilter?
Although both are hydrocyclone-based separation devices, they serve different purposes in the drilling process.
A desander is typically the second stage of solids control equipment. It removes relatively larger particles, usually in the range of 44 to 74 microns. It helps reduce the load on downstream equipment and protects the system.
A desilter, on the other hand, is the third stage. It removes finer particles, generally between 15 and 44 microns, which cannot be separated by the desander.
Key differences include:
In many modern systems, both units are combined into a single machine called a mud cleaner, which integrates desander, desilter, and a bottom shaker.
Choosing the right equipment depends on your drilling conditions, mud properties, and required processing capacity.
Working with an experienced manufacturer can help you design the most efficient configuration.
February 28, 2024
Anonymous, On-site Drilling Engineer, Domestic Oilfield Operator
Zhongcheng’s mud circulation system has been running continuously at our Xinjiang desert site for 8 months, with no major breakdowns or costly operational halts. Its solid build and wear-resistant components have helped keep our maintenance and repair costs in check. In the harsh downhole conditions here, its durability reliably meets our daily operational needs.
January 15, 2025
Anonymous, Technical Project Lead, International Oilfield Service Provider
We had an urgent need for a custom mud zero-discharge system for a coalbed methane project, and Zhongcheng delivered. Their engineering team locked in the designand shipped the full system in 45 days, and it integrated perfectly with our existing ZJ50 rig. On-site commissioning even finished ahead of schedule. Their technical know-how and speed are exactly what we need for time-sensitive projects.
February 28, 2024
Anonymous, On-site Drilling Engineer, Domestic Oilfield Operator
Zhongcheng’s mud circulation system has been running continuously at our Xinjiang desert site for 8 months, with no major breakdowns or costly operational halts. Its solid build and wear-resistant components have helped keep our maintenance and repair costs in check. In the harsh downhole conditions here, its durability reliably meets our daily operational needs.
January 15, 2025
Anonymous, Technical Project Lead, International Oilfield Service Provider
We had an urgent need for a custom mud zero-discharge system for a coalbed methane project, and Zhongcheng delivered. Their engineering team locked in the designand shipped the full system in 45 days, and it integrated perfectly with our existing ZJ50 rig. On-site commissioning even finished ahead of schedule. Their technical know-how and speed are exactly what we need for time-sensitive projects.
