Suitable Paint Types: Medium-to-high viscosity automotive original equipment manufacturer (OEM) paints (e.g., metallic paints, varnishes), electrophoretic paints, primers, etc.
Advantages:
High-efficiency dual-head filling meets the large-scale demands of automotive production lines (e.g., filling hundreds of 5L/20L paint barrels per hour);
The stable conveying capacity of the rotor pump for high-viscosity paints (such as thick anti-corrosive coatings) ensures filling accuracy (error ±0.1%–±0.2%), avoiding coating quality issues caused by metering deviations;
Corrosion-resistant stainless steel material complies with the automotive industry's requirements for equipment hygiene and long-term durability.
Suitable Paint Types: High-viscosity zinc-rich epoxy paints, polyurethane anti-corrosive paints, thick marine coatings, etc.
Advantages:
The strong shear force and extrusion capacity of the rotor pump can stably transport paints with high solid fillers (such as zinc powder and mica), preventing sedimentation and delamination;
Anti-drip design and fully enclosed pipelines reduce paint volatilization and leakage, making them suitable for flammable and explosive anti-corrosive coatings (such as solvent-based paints);
The automated control system can monitor filling volumes in real time, meeting the strict batch consistency requirements of industrial anti-corrosive coatings.
Suitable Paint Types: Medium-to-low viscosity water-based latex paints, interior wall paints, exterior wall paints, etc.
Advantages:
Dual-head filling can simultaneously handle two different colors or specifications of latex paint (e.g., 1L/5L small packages), enabling flexible switching between production tasks;
The gentle pulsed delivery of low-viscosity materials by the rotor pump reduces foam generation (latex paint is prone to foaming, which affects painting results);
Compatible with various packaging specifications (from 1L small barrels to 20L large barrels), it can be quickly adjusted by replacing filling head accessories, suitable for coating enterprises with multi-product lines.
Suitable Scenarios: Small-batch, multi-variety production in 中小型涂料厂 (e.g., artistic paints, wood paint color mixing and filling).
Advantages:
The PLC control system supports rapid parameter adjustment (e.g., single-barrel filling volume, filling speed), suitable for customized needs with frequent formula changes;
Anti-drip valves and suction-back functions prevent paint waste during small-package filling and improve the appearance cleanliness of finished products;
Hygienic-grade stainless steel is easy to clean, meeting the environmental and equipment cleanliness requirements of home decor paints.
Suitable Paint Types: High-value heat-resistant paints, stealth coatings, aviation-specific anti-corrosive paints (wide viscosity range, some containing special fillers).
Advantages:
High-precision metering meets the strict standards for coating usage in military products (e.g., paint usage errors for missile compartment coating must be controlled within ±0.5%);
Fully sealed design and explosion-proof configurations (such as explosion-proof motor treatment) can handle flammable and explosive solvent-based military coatings;
High equipment stability is suitable for long-term continuous operation (e.g., 24-hour uninterrupted production), ensuring the delivery efficiency of military orders.
Suitable Scenarios: Can inner wall coatings, environmental paints for food packaging (must comply with FDA or national food-contact material standards).
Advantages:
Components in contact with paint are made of 316L stainless steel with polishing treatment, featuring low surface roughness (Ra≤0.8μm), no dead corners, and easy cleaning to avoid coating residue and contamination;
High automation reduces manual contact and cross-contamination risks, complying with the hygiene standards of the food industry.
Reason: High initial equipment investment (procurement cost 30%–50% higher than single-head models) and lengthy cleaning/maintenance times are unsuitable for small-batch trial production or R&D sampling.
Alternative Solution: Use manual or semi-automatic single-head filling machines (such as piston fillers) for lower costs and higher flexibility.
Reason: Small rotor pump clearances (0.1–0.3 mm) are prone to blockage by sand, pigment agglomerates, etc., requiring additional precision filtration devices (increasing costs).
Alternative Solution: Switch to centrifugal pumps or hose pumps, which have stronger particle tolerance.
Reason: Possible backflow or dripping when stopped (even with anti-drip valves), and rotor pumps have lower efficiency than centrifugal pumps in low-viscosity scenarios (volumetric efficiency difference of 10%–15%).
Alternative Solution: Combine with anti-backflow valves or choose a gear pump + rotor pump combination to optimize performance across different viscosity ranges.
When selecting this equipment, key evaluation factors include:
Material Characteristics: Prioritize medium-to-high viscosity paints (especially those with solid fillers or high added value); low-viscosity applications require auxiliary devices.
Production Capacity Requirements: Suitable for large-scale production with a daily filling volume ≥500 barrels (based on 5L), leveraging the efficiency advantages of dual-head filling.
Budget and Maintenance Capability: Accept higher initial investment and regular maintenance costs (e.g., replacing seals every 3–6 months). It is recommended to have a professional maintenance team or sign a maintenance agreement with suppliers.
With its combination of "high-precision metering + dual-head efficiency + wide viscosity adaptability," this equipment becomes a preferred solution for medium-to-large enterprises in industrial coatings, architectural paints, and other fields, particularly suitable for scenarios pursuing a balance between production capacity and quality.
