For HDD engineering, stable mud quality directly determines construction safety. That’s why it is an essential role which a mud recycling system plays. GN Solids Control is regarded as an always reliable and professional manufacturer in this field internationally. Just in the past week, GN Solids Control helped a client from Middle East to design a trailer mounted mud recycling system and also put it into reality. 

1.Economically and environmentally, the trailer mounted mud recycling system delivers obvious benefits. It cuts fresh water and bentonite consumption by 60%–85% compared with once-through mud disposal methods. In environmentally sensitive zones such as riverbanks and wetlands, closed-loop recycling avoids uncontrolled slurry discharge and helps contractors meet local environmental regulations on suspended solids and soil contamination. Its compact footprint fits cramped urban HDD sites where traditional large mud pits are impossible to set up. Compared with skid systems, trailer units save auxiliary lifting equipment and shorten idle time between consecutive bore sections, improving overall project advance rate.

2.There are also practical technical constraints requiring proper matching. The treatment capacity of the trailer system must align with the HDD rig’s mud pump flow rate; under-sized units cannot keep up with mud return volume and cause overflow. Operators need to select screen mesh and cyclone combinations according to formation conditions: sandy ground requires stronger desander performance, while clay strata focus more on fine-solids control. Regular inspection of screen panels, cyclone liners and pump seals is mandatory under continuous field vibration and abrasive slurry erosion.

In summary, the trailer mounted mud recycling system combines mobile deployment capability with multi-stage solids-control technology. It solves the unique fluid management challenges of HDD, balancing borehole stability, mechanical protection, waste reduction and site flexibility. As trenchless projects grow longer and environmental supervision tightens, this type of mobile mud treatment unit will continue to be a key technical enabler for safe, low-cost and sustainable HDD construction worldwide.

Good news comes that GN Separation just delivered a lot of big bow decanter centrifuges, 5 sets of GNLW764 decanter centrifuges were successfully commissioned at a new client’s jobsite in overseas, which is a new land mark of GN. And this time, again, the big bowl centrifuges are used for a mining tailing slurry separating application.

Previously, most of such works were done by filter presses,but nowadays, more and more big bowl centrifuges with large treating capacities are invited into this kind of work, replacing the filter pressess, and of course, the end users have their reasons to do so, which include but not limited to following:

1.The most prominent advantage is continuous automatic operation. A filter press works in batch cycles: filling, pressing, cake discharging and cloth cleaning, which requires frequent pauses and manual supervision. In contrast, a big bowl highspeed centrifuge separates solids and liquid by strong centrifugal force. It can run 24 hours continuously with stable feeding, even when the feed concentration fluctuates. This feature greatly improves processing capacity and reduces labour input, which fits largescale mining production lines well.

2.Secondly, decanter centrifuges avoid filter cloth clogging problems. Fine mineral particles in tailings easily blind filter cloths, lowering filtration efficiency and forcing regular cloth replacement and high consumable costs. Centrifuges have no filter media; separation relies on rotation instead of filtering. They perform steadily on slimy, finegrained tailings without frequent shutdowns for washing or part replacement, cutting longterm maintenance expenses.

3.Besides, big bowl centrifuges occupy a much smaller footprint. A filter press system with the same throughput needs a large area for plate frames, hydraulic stations and cake conveyors. The compact structure of centrifuges simplifies civil construction and saves plant space, especially for mines with limited workshop land. The recovered clarified water can be sent back to the production circuit directly, reducing freshwater intake and easing the pressure on tailings ponds.

GN Separation to Showcase Advanced Mining Separation Solutions at Bauma Shanghai 2026, Connecting Global Mineral Processing Professionals.

1. Influence of BAUMA, Shanghai. As part of the globally recognized bauma exhibition network originated from Munich, Germany, the event follows the long-standing success of the flagship bauma Munich, which has served as the definitive industry marketplace for over 70 years, bringing together more than 3,500 exhibitors and hundreds of thousands of professional visitors from across six continents. Beyond Germany, the bauma network has expanded to cover key growth markets worldwide, including bauma CONEXPO INDIA, which connects the fast-growing South Asian mining and infrastructure sector, M&T Expo in São Paulo, serving the extensive Brazilian mineral processing and mining community, and the newly launched bauma SAUDI ARABIA in Riyadh, which taps into the Middle East’s multi-billion-dollar mining and construction investment pipeline.

2. Who is GN Separation. Against this backdrop, GN Separation is positioning its proven mining equipment manufacturing strength at the center of its exhibition presence. The company has built a full industrial ecosystem covering in-house R&D, precision machining, full-scale performance testing and after-sales technical support tailored specifically for the mining sector. Unlike general-purpose separation equipment suppliers, GN designs every product line to withstand the extreme operating conditions found in hard rock mining, coal preparation, graphite concentrate processing, leach circuit management and tailings dry stacking projects.

3. What GN will Show at BAUMA.  At Bauma Shanghai 2026, GN will present three core mining processing systems that have already demonstrated measurable operational improvements at active mine sites worldwide, including GN Mining Vibrating Screen, GN Coal Sump Slurry Treatment Unit and GN mining ecanter Centrifuge. GN Separation’s participation at Bauma Shanghai 2026 reflects the company’s ongoing commitment to bringing application-proven, efficiency-focused separation technology to the global mining industry.

The exhibition will provide an opportunity for visiting mining professionals, project engineers and purchasing managers to discuss their specific process challenges directly with GN’s technical team, review full performance data from reference sites and explore custom-engineered separation solutions that can help unlock higher plant productivity and lower operational costs

October 11, 2026 — Tianjin, China

GN Separation, a leading global provider of drilling fluid processing and solids separation equipment, has announced the successful completion and factory acceptance testing of a fully customized 5-stage solids control system, purpose-built for a large-scale coalbed methane (CBM) development project operated by an international energy contractor. The milestone further solidifies the company’s position as one of the few suppliers worldwide capable of delivering fully integrated, application-specific mud conditioning solutions tailored to the unique operational challenges of CBM exploration.

Unlike standard 3- or 4-stage mud recycling systems designed for conventional oil and gas drilling, the new 5-stage system adopts a progressive separation architecture engineered specifically to address the well-documented complexities of CBM operations: high volumes of fine coal cuttings, reactive clays, entrained gas, and strict wellbore stability requirements in fragile coal seam formations. The full workflow combines high-G linear motion vibrating screen, a dedicated vacuum degasser, hydrocyclone desander, hydrocyclone desilter, and variable-frequency high-speed decanter centrifuge into one cohesive, skid-mounted package, delivering consistent removal performance for particles across the full 2 μm to 200 μm size range that dominates CBM drilling fluid streams.

According to the project engineering team, every core component of the system was designed, manufactured, and performance-verified in-house, ensuring full process compatibility and eliminating the performance mismatches that frequently occur when operators assemble multi-stage systems from mismatched third-party equipment. The system is certified to ATEX and CE standards, making it fully compliant with European and international hazardous area operation regulations, and features a modular layout that allows rapid on-site assembly without extensive custom fabrication work.

The company’s track record in CBM and unconventional gas development extends across multiple continents, with previously delivered systems now in active operation across India, Europe, Africa, and major domestic unconventional basins.