GN Separation has recently manufactured and shipped a batch of solids vacuum pumps for an overseas customer. The equipment will be deployed to transfer and recover sludge and other challenging materials under severe operating conditions.

Powered by compressed air, the pump generates vacuum to suck in materials and then discharges the collected medium to designated locations. Thanks to this working principle, it can process materials with high solid content, viscous sludge and other poorly flowing substances.

What makes this pump stand out? There are no electric motors or electrical components on the unit. This feature makes it an ideal choice for sites where reducing electrical equipment is a key requirement.

GN Solids Vacuum Pumps support a broad range of material transfer and cleaning applications. Typical scenarios include:

• Thickener de-sludging
• Tunneling and TBM construction
• Sump and shaft cleaning
• Tailings and ash pond cleanup
• Digester and pond maintenance
• Oil spill recovery and transfer
• Under-belt spillage removal
• Hazardous waste recovery
• Drilling mud and cuttings transfer
• Mining slurry transport
• Offal transfer

This pump is well suited for moving large volumes of sludge, muck and slime — materials that are difficult to process using traditional pumping systems. Its pneumatic design brings great flexibility for remote, wet, dirty and harsh job sites.

For sludge transfer and cleaning projects, pump selection depends on multiple factors: material properties, solid concentration, required throughput, suction distance, discharge distance and on-site installation conditions. GN Separation can recommend different pump models based on customers’ specific working conditions and transfer demands.

This shipment once again demonstrates GN Separation’s ability to deliver practical solid and sludge handling solutions to customers around the world. With extensive experience in sludge transfer, dewatering and solid control equipment, GN provides reliable support for wastewater treatment, tunneling, mining, oilfield, industrial and environmental projects.

If you are looking for a pneumatic sludge transfer pump to handle high-solids, viscous or hard-to-process materials, GN Separation can assess your application and recommend a tailored solution matching your operating conditions.

GN Supplies Two‑Phase Disc Stack Separator for Southeast‑Asian Seaweed Slurry Separation Project

GN Separation has recently delivered a two‑phase disc stack separator for a seaweed slurry separation project in Southeast Asia, delivering an efficient solution dedicated to clarification and fine solid‑liquid separation of seaweed slurry.

Deployed for this Southeast‑Asian project, GN’s two‑phase disc stack separator undertakes fine clarification of seaweed slurry. It is engineered to isolate fine solid particles from liquid media while discharging clarified liquid in a continuous manner. Benefiting from its high‑speed rotating bowl and disc‑stack assembly, this separator generates far greater centrifugal force than standard decanter centrifuges, which makes it well‑suited for scenarios demanding superior liquid clarification results.

GN’s two‑phase disc separator delivers a maximum centrifugal force of 12 000 G, in contrast to roughly 3 000 G produced by ordinary decanter centrifuges. Such elevated G‑force paired with high rotational rpm empowers the unit to efficiently trap tiny suspended solids and yield highly purified clarified liquid.

Material feed properties are critical considerations for disc stack separator procurement. Optimized for fine‑particle separation, the two‑phase disc stack separator requires feedstock with low solid concentration and absence of oversized particles. For most operating conditions, the optimal solid content stands at approximately 1 %, with a general upper threshold of 3 %.

Pretreatment becomes necessary for feeds carrying elevated solid fractions or coarse particles. A decanter centrifuge or alternative separation equipment can serve as the primary‑stage treatment, removing coarse particles and lowering solid load. The two‑phase disc stack separator then functions as the secondary clarification step to attain enhanced liquid clarity.

This hybrid separation setup enables process customization aligned with feedstock traits and target separation performance. For seaweed slurry processing, proper equipment selection elevates clarified‑liquid quality and stabilizes subsequent downstream workflows.

Beyond seaweed slurry processing, GN’s two‑phase disc stack separators serve diverse industrial sectors: vegetable‑oil refining, biotech‑pharmaceutical manufacturing, dairy and beverage production, biofuel processing, as well as marine oil purification. Units can be tailored in configuration to match varying material properties, throughput volumes and separation specifications.

This successful field deployment in Southeast Asia validates GN Separation’s expertise in delivering high‑speed centrifugal separation solutions for specialized liquid‑clarification tasks. Where process conditions call for it, GN integrates tailored pretreatment workflows with high‑G clarification technology to supply robust, cost‑effective separation solutions for clients across food, environmental, general industrial and bio‑processing industries.

GN Separation is pleased to announce the successful delivery of a 5-Deck Stack Vibrating Screen to an overseas customer, providing a compact and efficient solution for fine material screening, classification and dewatering.

Designed for demanding mineral processing and solids separation applications, the GN Stack Vibrating Screen combines a multi-deck configuration with high-frequency linear vibration. The 5-deck design enables multiple screening stages to be integrated into a single machine, providing high screening capacity while significantly reducing the required installation footprint.

GN Separation is glad to announce the successful delivery of a 5‑deck Stack Vibrating Screen to an overseas customer, delivering a high‑efficiency, space‑saving screening solution for rigorous solids‑processing operations.

The GN Stack Vibrating Screen leverages the dual‑motor self‑synchronization principle to drive steady linear movement of the full screen box assembly. This engineering delivers repeatable, reliable screening performance and enables stable running under round‑the‑clock operating conditions. Deployed for this overseas project, the 5‑deck setup consolidates multiple screening stages within a single unit. It greatly boosts total screening area and throughput, without demanding a large installation footprint.

Against traditional vibrating screen alternatives, GN’s multi‑deck stacked architecture delivers far higher throughput per unit floor space. It fits perfectly for sites constrained by limited layout space yet requiring high material feed rates and precise particle separation. Furthermore, its refined vibration assembly cuts power draw and dynamic loading, supporting consistent, energy‑efficient operation.

Polyurethane screen panels represent another key strength of this equipment. Featuring excellent wear resistance and elasticity, these panels mitigate screen blinding and material clogging throughout operation. Each individual screen box can accommodate two to three panels to match varied separation objectives. Panels are fastened via pull‑bolt assemblies: this guarantees secure mounting during runtime and simplifies on‑site replacement and routine maintenance work.

Durability and harsh‑environment adaptability stand as core priorities for overseas‑project equipment. GN subjects the unit to professional sandblasting followed by heavy‑duty anti‑corrosive paint coating to strengthen overall corrosion resistance. Surfaces that come into direct contact with process materials receive an extra polyurea resin wear‑and‑corrosion‑resistant overlay, defending against abrasive wear and chemical attack to extend total equipment service life.

The vibration system can be fitted with globally proven Martin or OLI vibration motors, granting dependable performance and extended trouble‑free runtime. Coupled with GN’s heavy‑duty structural build and low‑maintenance design, the Stack Vibrating Screen is purpose‑built for uninterrupted industrial duty.

Completion of this 5‑deck unit shipment underscores GN Separation’s competence in delivering tailored screening solutions for global clients — covering equipment layout configuration, screening media selection, surface protection treatment and complete system design. GN collaborates closely with end‑users: material properties, target throughput, separation specifications and site constraints are all evaluated to define the optimal equipment setup for each application.

Boasting compact footprint, superior screening efficiency, large handling capacity and robust operational stability, GN Stack Vibrating Screen is an ideal option for operators aiming to upgrade screening performance while optimising site layout and operational expenditure.

GN Separation keeps innovating and supplying professional solids separation equipment for customers across the globe, serving demanding sectors including mining, environmental remediation and general industrial processing.