Used 2019 Union Process QL-25 Circulation Attritor – 27.5-Gallon Grinding Tank, 250-Gallon Recirculation Tank & 40 HP Drive

Manufacturer Information

Union Process

Union Process manufactures industrial grinding, milling, and particle-size-reduction equipment, including Attritor grinding mills and circulation systems. Circulation Attritors are designed for wet grinding and dispersion applications in which a pumpable slurry is repeatedly circulated through a media-filled grinding chamber to achieve progressively finer and more uniform particle sizes.

This Union Process Model QL-25 was built in 2019 and includes a 27.5-gallon grinding tank and an approximately 250-gallon recirculation tank.

Description

Available for sale is a used 2019 Union Process Circulation Attritor System, Model QL-25, designed for continuous recirculating wet grinding, dispersion, and fine particle-size reduction.

The Attritor features a 27.5-gallon grinding tank and is driven by a 40 HP motor. The system includes an approximately 250-gallon recirculation tank equipped with an anchor stirrer and mixer, helping maintain product movement and consistency as material circulates through the grinding system.

Maximum stated pumping capacity is approximately 35 GPM, depending on the selected grinding media, slurry viscosity, solids loading, and other process conditions.

Electrical requirements are 460V, 60 Hz, 3-phase. Serial number is 190402, and the unit was built in 2019.

Potential applications include wet grinding and dispersion of coatings, inks, pigments, chemicals, minerals, metal oxides, and other compatible pumpable slurries requiring fine and consistent particle-size reduction.

Specifications

Typical Applications

• Wet grinding
• Fine particle-size reduction
• Pigment dispersion
• Slurry processing
• Media milling
• Coating production
• Ink manufacturing
• Chemical dispersion
• Mineral grinding
• Metal oxide processing
• Recirculation milling
• Homogeneous particle-size processing

Products This Attritor System Could Be Used For

• Paints and coatings
• Printing inks
• Pigment dispersions
• Specialty chemicals
• Mineral slurries
• Metal oxides
• Ceramic slurries
• Carbon dispersions
• Color concentrates
• Electronic material slurries
• Abrasive-compatible formulations
• Other pumpable wet-process slurries

Actual product suitability, throughput, final particle size, and grinding time depend on feed particle size, slurry viscosity, solids loading, grinding-media material and size, product chemistry, circulation rate, temperature, and desired final specifications.

Frequently Asked Questions

• What is the grinding tank capacity of the QL-25? The Union Process QL-25 has a stated 27.5-gallon grinding tank capacity.
• Does the system include a recirculation tank? Yes. It includes an approximately 250-gallon recirculation tank equipped with an anchor stirrer and mixer.
• What size motor drives the Attritor? The grinding system is driven by a 40 HP motor.
• What is the maximum pumping rate? The stated maximum is approximately 35 GPM, although actual flow depends on grinding media, slurry viscosity, solids loading, and process conditions.
• What types of materials can be processed? Potential applications include compatible coatings, inks, pigments, chemicals, minerals, metal oxides, and other pumpable slurries requiring wet grinding or dispersion.
• Can Aaron Equipment assist with shipping and logistics? Yes. Aaron Equipment can assist with rigging and loading coordination, domestic and international freight, customs documentation, and logistics planning for the Attritor, recirculation tank, and associated system components.