Large Batch Horizontal Sand Mill 60L 37kW For South America Pigment Paste

The HSS360 horizontal sand mill is a 360-litre high-output unit built for pigment paste and industrial coating producers in Brazil, Argentina, Chile and Colombia who run long campaigns of a few products rather than many short batches. A 132kW motor drives a heavy disc rotor with a large media charge, delivering 400 to 3200 kg/h while keeping specific energy per tonne low enough to compete on cost. The chamber is designed for circulation grinding in a loop with a large holding tank, and the screen area is sized so that high flow does not translate into high back pressure. Wear is managed through hardened discs and replaceable chamber inserts, and the grinding zone can be reconditioned in place rather than shipped back to the factory. Campaign changeover is supported by a sloped drain, full-flow flush connection and a quick-release screen, which matters when a plant runs iron oxide, titanium dioxide and organic pigment through the same mill in sequence. In the workshop it runs as a horizontal agitator bead mill, and every sand mill duty from pre-dispersion to fine grinding passes through the same closed chamber.

• Large Batch Throughput: 360L chamber with a 132kW drive delivers up to 3200 kg/h, so a single mill can carry a plant's full campaign schedule
• Low Specific Energy: optimised rotor and media loading reduce kWh per tonne, the figure that decides competitiveness on commodity pigment paste
• Quick Campaign Changeover: sloped drain, full-flow flush and quick-release screen shorten cleaning between iron oxide, TiO2 and organic pigment campaigns
• Wear-Managed Grinding Zone: hardened discs and replaceable chamber inserts absorb abrasive pigment wear and can be renewed without returning the machine to the factory
• Mechanical Reliability At Scale: rigid frame, oversized bearings and a balanced rotor keep vibration low through continuous multi-shift operation
• Process Safety Interlocks: chamber temperature, barrier pressure and drive load are interlocked so the mill stops safely before a seal or bearing failure damages the batch

South American pigment and coating producers use the HSS360 horizontal agitator bead mill for iron oxide and titanium dioxide paste, organic pigment dispersion, industrial maintenance coating and solvent ink. The usual arrangement is a circulation loop with a 6 to 12 m³ holding tank and a high-shear pre-mixer, with the mill running until laser diffraction confirms the target D90. Because the same equipment often handles several pigment families in a season, plants schedule campaigns around cleaning rather than around grinding capacity, and the drain and flush design is chosen to keep that cleaning predictable. Remote diagnostics help plants that are far from a service centre to resolve drive or seal issues without waiting for a site visit.

Each HSS360 horizontal sand mill is built in an ISO 9001:2015 certified plant and tested for 72 hours under load on a reference pigment paste; the shipment report covers vibration, bearing temperature, seal leakage, flow rate, specific energy and fineness. Chambers are pressure tested at 1.5 times working pressure, rotors are dynamically balanced, and disc and insert dimensions are checked against a drawing-based checklist. Documentation includes electrical schematics, cooling and flush piping diagrams, an English operation and maintenance manual, a recommended spare-part list and material certificates for wetted parts. The 12-month warranty excludes media and wear parts, wear parts are stocked for ten years, and commissioning support covers alignment, media charging, first-batch validation and operator training, with remote diagnostics available for the life of the machine.