High Viscosity Mixer for Colombia: Double & Triple Shaft Guide

Map Viscosity Bands to Shaft Configuration

Viscosity, not batch volume, decides the shaft set. Below about 100,000 cps a concentric double-shaft mixer (PCM) carries the product on a hollow low-speed anchor fitted with PTFE wall scrapers while a central high-speed disc disperses. Between 100,000 and 150,000 cps a parallel double-shaft unit (PM) separates agitation from dispersion for thixotropic coatings and liquid adhesives.

Past 300,000 cps you need a third axis. The PS triple-shaft mixer stacks anchor scraping, high-speed dispersion and an emulsifying or ribbon tool so silicone sealants and structural adhesives finish in one vessel. At 1,000,000 cps and above, only a planetary (PMX) kneads the mass; dual or triple planetary blades revolve around the tank and orbit their own axes, eliminating the dead center a single shaft leaves behind.

Why 60Hz Power Conversion Cannot Be an Afterthought

Colombia's industrial grid runs at 60Hz, typically 220V or 440V. A mixer built and tested for a different line frequency arrives with a motor that loses synchronous speed, a frequency inverter tuned to the wrong line, and a PLC cabinet wired for the wrong supply. The result is overheating, reduced tip speed and longer batch times.

POLYC sizes the drive motor, heavy gearbox and control cabinet for 60Hz before the vessel is crated. Hydraulic lifting columns, mechanical seals and the vacuum pump are all matched to the Colombian supply, so commissioning is a matter of connecting the incoming line rather than rewinding a motor.

Vacuum Deaeration and Batch Uniformity

High-viscosity batches trap air that becomes bubbles in the final sealant or coating. Running the mixer under vacuum pulls entrained air out while the blades work the mass. For pastes above 300,000 cps this step is what separates a smooth, shelf-stable product from one that blisters in application.

We fit a vacuum cover and mechanical seal rated for the operating temperature on the PS and PMX series as standard. The same vacuum path supports feeding additives through a drop port without breaking the seal, keeping the batch closed and clean.

Planning Explosion-Proof Configurations for Solvent Formulas

Solvent-based adhesives and coatings release vapors that demand isolated electrical enclosures. Treating this as a retrofit after delivery is expensive and often impossible without re-certifying the panel.

We specify explosion-proof configurations available upon request for the motor, control cabinet and any exposed switching, and we document the hazard class with your engineering team before production starts. That way the unit arrives in Colombia ready for the solvent line rather than waiting on local modification.

Sea-Worthy Packaging and Colombian Commissioning

A multi-shaft mixer is a heavy, precision assembly. We anchor the drive shaft, hydraulic column and seal inside a fumigated, reinforced timber crate and supply the commercial invoice, packing list, certificate of origin and bill of lading for Colombian customs.

After arrival, our Wuxi engineering team shares wiring diagrams, video calibration walkthroughs and remote consultation so your local technicians complete commissioning. Bilingual coordinators handle written communication in Spanish so specifications do not get lost in translation.

How POLYC Compares With Other Chinese Mixer Makers

We compare only what each maker states publicly. Confirm exact terms on a formal quotation.

Which Setup Fits Your Product

Manufactured In-House in Wuxi

POLYC runs a 9,000 m2 plant in Wuxi where CNC machining, dynamic balancing of disperser shafts, hydraulic assembly and tank welding happen under one roof. Vertical integration is what lets us hold tight tolerances on the anchor-and-disc geometry that decides whether a high-viscosity batch stays uniform, and it is what lets us build to 60Hz and explosion-proof requirements without outsourcing the critical steps.

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