Hydraulic Double Shaft Disperser for High Viscosity Liquid Mixing and Dispersion

Product Overview

This hydraulic double shaft disperser is a high-performance mixing system designed to efficiently disperse, emulsify, and homogenize medium to high-viscosity liquid materials. The dual-shaft configuration, each equipped with precision-machined dispersing discs, generates intense shear forces that rapidly break down agglomerates and achieve uniform particle distribution. By employing a robust hydraulic lifting mechanism, the unit offers smooth and stable vertical adjustment, enabling quick vessel changes and precise positioning for optimal mixing results across various batch sizes.

Engineered for demanding industrial environments, this disperser finds primary application in the production of paints, coatings, printing inks, adhesives, and specialty chemicals. Its design minimizes air entrapment during operation, preserving product quality and preventing oxidation or foaming—critical for sensitive formulations. The integrated variable frequency drive provides accurate speed control, allowing operators to fine-tune shear energy input according to the viscosity and rheology of the processed material.

Built with a heavy-duty frame and high-grade stainless steel components, this system ensures long-term reliability and consistent performance even under continuous high-speed operation. The optional explosion-proof configuration meets stringent safety standards, making it suitable for hazardous areas where flammable solvents or dusts are present. With its combination of advanced engineering, robust construction, and user-friendly controls, this unit delivers a cost-effective solution for achieving high-quality dispersions in rigorous production settings.

Key Features

• High-Shear Twin-Shaft Design: Two independently mounted dispersing discs rotate at high speeds to create multiple shear zones within the mixing vessel. This dual-action intensifies the mechanical forces responsible for particle size reduction, ensuring rapid and uniform dispersion of pigments, fillers, and additives. The design also promotes material turnover, preventing dead zones and improving overall mixing efficiency.
• Hydraulic Lift with Precision Control: The integrated hydraulic lifting system allows effortless vertical movement of the disperser head with micrometer-like accuracy. This feature simplifies vessel loading and unloading, supports ergonomic operation, and maintains consistent immersion depth—crucial for reproducible batch results. The heavy-duty cylinder and seals are rated for millions of cycles, guaranteeing maintenance-free operation over the equipment's lifespan.
• Variable Frequency Drive (VFD): The advanced VFD provides stepless speed regulation from a gentle 50 rpm for initial wetting up to the maximum 2800 rpm for intensive high-shear dispersion. The digital control panel displays real-time rpm and allows presetting operating parameters, enabling recipe management and reducing setup time. This precise control over tip speed directly translates to better product consistency and energy savings.
• Minimal Air Entrainment: The dispersing head’s specially engineered geometry reduces vortex formation and air suction, a common problem in high-speed mixers. By minimizing air incorporation, the system prevents unwanted foaming and oxidative degradation, resulting in denser, more stable end products. This is especially beneficial for coatings and inks where pinhole-free films and clear transparency are required.
• Explosion-Proof Safety System: Available with ATEX-certified motors and electrical enclosures, this system is fully compliant for operation in Zone 1 and Zone 2 hazardous areas. Intrinsic safety barriers, flame-proof junction boxes, and anti-static grounding ensure operator protection when processing solvent-based or combustible materials. This configuration aligns with global industrial safety regulations, mitigating risk and insurance liabilities.
• Stainless Steel Construction: All product-contact parts are fabricated from high-grade stainless steel (304 or 316), chosen for their exceptional corrosion resistance and inertness to a broad range of chemicals. The non-porous surfaces are easy to clean and sterilize, preventing cross-contamination between batches. The rigid frame and motor housing further protect internal components from the harsh chemical environments typical of dispersion processes.
• Versatile Vessel Compatibility: The system accommodates a wide range of mixing containers, from small 10-liter pails to large 500-liter totes, thanks to the generous 800 mm lifting stroke and adjustable dispersing disc diameter (100–200 mm range). Quick-clamp disc mounts enable fast changes between different disc sizes, optimizing shear profiles for varying viscosities and batch volumes without extensive downtime.
• Quick-Change Dispersing Discs: The shaft-mounted disc hubs allow tool-less swapping of dispersing discs in under a minute, enabling rapid transition between different shear profiles or batch sizes. This flexibility reduces downtime and makes it practical to optimize dispersion for diverse product lines.
• Integrated Safety Interlocks: All lifting and rotation functions are interlocked to prevent operation when the disperser is in an unsafe position. Limit switches, overload protection, and a failsafe emergency brake ensure operator safety and protect the equipment from misuse.
• Low Total Cost of Ownership: Designed with sealed bearings, beltless direct-drive transmission (on select models), and wear-resistant shaft seals, this disperser minimizes routine maintenance requirements. The modular component layout allows easy access for inspections and part replacements, reducing service time. Combined with energy-efficient VFD technology, this translates to a lower overall operational expenditure compared to conventional hydraulic dispersers.

Applications

The versatility of this twin-shaft hydraulic disperser makes it an indispensable tool across many manufacturing sectors. The table below highlights representative applications and their specific benefits.

Technical Specifications

To address varied production demands, this disperser is offered in nine power configurations. The table below outlines the performance specifications for each variant. All models share a common maximum speed of 1400/2800 r/min, a dispersing disc diameter range of 100–200 mm, and an 800 mm lifting stroke.

Beyond the core specifications, each unit incorporates a suite of standard features that enhance usability, safety, and adaptability.

System Features

All models are thoroughly tested at the factory to ensure performance meets specified parameters before shipment.

Why Choose This Product

• Industry-Leading Reliability: Engineered for 24/7 operation with oversized bearings, direct-drive motors, and wear-resistant materials, this disperser delivers consistent performance over decades. Many units remain in service after 20 years with minimal downtime, a testament to superior build quality and design.
• Precision Dispersion Control: The combination of variable frequency drive and hydraulic height adjustment enables fine-tuning of shear intensity and dispersion zone, leading to repeatable particle size distributions batch after batch. This level of control reduces reliance on downstream milling and improves yield.
• Custom Engineering Services: Our team works closely with you to tailor the disperser to your process—whether it’s integrating automated PLC controls, adding vacuum or pressure capabilities, or designing custom dispersing tools. We deliver solutions, not just equipment.
• Global Safety Compliance: Explosion-proof certifications (ATEX, IECEx) and compliance with CE and other regional standards ensure safe and legal operation worldwide. This proactive approach to safety protects your workforce and simplifies project approvals.
• Responsive After-Sales Support: From commissioning and training to rapid spare parts supply, our global service network ensures your production stays online. We offer maintenance contracts and remote diagnostics to minimize unplanned downtime.
• Proven Return on Investment: Reduced energy consumption, lower maintenance costs, and higher throughput make this disperser a financially sound choice. Compared to competitive models, users report 15–30% shorter cycle times and longer service intervals, directly boosting profitability.

For manufacturers seeking a reliable, high-performance dispersion solution, this hydraulic double shaft disperser represents the pinnacle of engineering and value. Contact us today to discuss your requirements and explore how we can customize a system for your specific needs.