Introduction
A single shaft high speed disperser is an industrial mixing and dispersing machine with a single high-speed shaft, used for the high-speed dispersion, the mixing, and the homogenization of the materials, and it is used in the paint, the coating, the ink, the chemical, and the many other industries. The single shaft high speed disperser consists of a shaft with a dispersing disc or a blade at the lower end, a drive system with a high-speed motor, a lifting mechanism, and a container holder, and it operates by the high-speed rotation of the dispersing disc, which creates the high shear in the material, dispersing the pigments and the agglomerates, and mixing the material, with features such as the adjustable speed, the lifting of the shaft, and the timer; the single shaft high speed disperser is used for the dispersion of the pigments and the fillers, for the mixing of the paints and the coatings, for the preparation of the pastes and the slurries, for the homogenization, for the dissolution, and for many other applications, and it is available in various capacities, from the laboratory models to the large production models; the single shaft high speed disperser is an essential equipment for the dispersion and the mixing in the industry. Single shaft high speed dispersers are used in the paint and the coating industry, in the ink industry, in the chemical industry, in the adhesive industry, and for many other applications. With their high-speed dispersion, single shaft high speed dispersers are essential for the efficient mixing.
Single-shaft High Speed Disperser LSSH-T2013
Single-shaft High Speed Disperser features a container capacity of 300 to 600L, aligning with the blade diameter for optimal shear and circulation. It has a robust stainless-steel constr...
Single-shaft High Speed Disperser LSSH-T2014
Single-shaft High Speed Disperser features a working travel of 1000mm, allowing the mixing shafts to move vertically across a wide range. The disperser offers sealed shafts, preventing c...
Single-shaft High Speed Disperser LSSH-T2012
Single-shaft High Speed Disperser a working travel of 1200mm, allowing the mixing shafts to move vertically across a wide range.The instrument is constructed from high-grade stainless st...
Single-shaft High Speed Disperser LSSH-T2011
Single-shaft High Speed Disperser features Φ280mm and Φ300mm dispersing blades, uniformly mixing medium to high-viscosity materials. It incorporates an integrated cooling system, preve...
Single-shaft High Speed Disperser LSSH-T2010
Single-shaft High Speed Disperser features an adjustable speed of 0 to 1450 rpm, providing precise control over mixing intensity to suit different material viscosities. It includes seale...
Standards
Complies with the above standards, but is not limited to them.
Features
1. Single shaft high speed disperser for rapid dispersion, mixing and homogenization of paints, coatings and chemicals.
2. High-shear disperser with single rotating shaft and saw-tooth disc for fast pigment dispersion and batch mixing.
3. Suitable for paint, coating, ink, adhesive, chemical, cosmetic, pharmaceutical and food manufacturing.
4. Includes drive motor, shaft, disperser disc (saw-tooth), vessel/clamp, controls, stand and operation manual.
5. Supports high-speed dispersion of pigments, fillers, resins and additives in paints, coatings, inks and pastes.
FAQ
Q1: What testing scenarios is this disperser mainly applied to?
A: The single shaft high speed disperser (high-speed disperser, HSD) is used in paint and coating manufacturing, ink and pigment production, adhesive and sealant manufacturing, chemical processing, cosmetics, pharmaceuticals, food, and composite manufacturing to perform rapid high-shear dispersion, mixing, and homogenization of liquid-solid systems (pigments, fillers, additives into resin/vehicle) using a rotating saw-tooth (cowles) disc at high tip speed (typically 20-30 m/s), creating shear and turbulence to break agglomerates and wet particles. It supports paint and coating production (pigment dispersion (TiO2, carbon black, colored pigments, extenders/fillers (calcium carbonate, talc, silica) into resin/vehicle - the HSD is the primary dispersion equipment for paint manufacturing; batch sizes from lab (0.5-5 L) to production (100-10000+ L)), ink production (pigment dispersion for offset, flexo, gravure, screen inks; high pigment loading concentrates), adhesive and sealant (filler dispersion (calcium carbonate, talc, fumed silica) into adhesives, caulks, sealants; thickener dispersion), chemical manufacturing (pesticide suspensions, fertilizer suspensions, catalyst dispersions, ceramic slurries), cosmetics (pigment dispersion for makeup (foundations, lipsticks, mascaras), filler dispersion for creams/pastes), pharmaceuticals (ointment/cream preparation, suspension formulation, API dispersion), food (paste/sauce mixing, pigment/additive dispersion, chocolate refining (alternative)), composites (filler dispersion for polymer composites, casting resins, BMC/SMC), and QC/R&D (lab-scale dispersers for formulation development, raw material evaluation, small batch production, scale-up studies).
Q2: What standards does the disperser comply with?
A: The single shaft high speed disperser follows relevant IEC, ISO, ASTM and GB/T standards including IEC 61010 (safety requirements for electrical laboratory equipment - for lab models), IEC 60204 (electrical equipment of machines - for production models), ISO 13849 (machine safety), applicable ATEX/IECEx for explosive environments (if processing flammable solvents - explosion-proof models required), and GB/T standards for dispersers/mixers. For production models, comply with OSHA/CE machinery directives, lockout/tagout, and safety guarding. Calibration includes speed (RPM) verification with tachometer, and timer accuracy. For pharma/food, follow GMP (equipment design for cleanability, 316L stainless steel, sanitary design) and FDA/EMA regulations. For paint/coating, no specific product standard but equipment must meet electrical and safety codes.
Q3: What is the warranty period for the whole disperser and key components?
A: The whole single shaft high speed disperser is covered by a 12-24 month warranty. The drive motor, gearbox/bearings, shaft, disperser disc, stand/frame, and controller are covered, while disperser disc (wear part - saw teeth wear over time, especially with abrasive fillers), seals/gaskets, bearings (wear), vessel (if included), and fuses are consumables/accessories. Damage from improper use, overloading (exceeding viscosity/volume/power - causes motor burnout, shaft bending), running dry (no liquid - disc/overheating), abrasive filler wear (silica, calcium carbonate wear disc and shaft), liquid ingress into motor/electronics, or unauthorized repair is excluded. Extended warranty and service contracts (preventive maintenance, bearing replacement) may be available. Motors last 10-20 years with proper use; discs/bearings need periodic replacement (1-5 years depending on usage/abrasiveness).
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained operators (especially production-scale models). We provide operation manuals, installation, and training. Proper setup (place disperser on stable floor/bench (production models are floor-standing with vessel clamp; lab models benchtop), ensure adequate clearance (shaft/disc must be properly positioned in vessel - disc 1-2 disc diameters above vessel bottom, centered; proper submergence (disc fully below liquid surface, typically 1/3 to 1/2 liquid depth from bottom - too high = vortex/air entrainment; too low = poor circulation/sedimentation), clamp vessel securely (prevents movement/vibration), verify electrical (proper voltage, grounding, dedicated circuit for high-power models; explosion-proof if solvents), material preparation (pre-mix resin/vehicle and liquid components first (add resin, solvent, additives to vessel), add pigments/fillers gradually (while disperser running at low-medium speed - do not dump all at once (causes dust, agglomerates, overload); use dust collection for fine powders), ensure formulation is within viscosity range for HSD (typically 100-50,000 cP; too viscous = poor circulation, motor overload; too thin = insufficient shear), operation (start at low speed (to wet powder, prevent splashing), gradually increase to high speed (target disc tip speed 20-30 m/s for dispersion; RPM depends on disc diameter: tip speed = pi x diameter x RPM / 60), disperse for specified time (typically 10-60 minutes depending on pigment, target fineness (Hegman gauge), viscosity; monitor temperature (high shear generates heat - exothermic; for solvent-based, heat can cause solvent loss/fire risk; for heat-sensitive materials, use jacketed vessel for cooling), monitor fineness (periodically check with grind gauge (Hegman) to determine dispersion endpoint - stop when target fineness reached (over-dispersion can reduce viscosity, cause pigment re-agglomeration, or wear equipment), avoid air entrainment (reduce speed if vortex draws air into batch (air bubbles cause defects, oxidation; use larger disc, lower speed, or baffle), post-operation (decrease speed gradually, stop, lift shaft, remove disc for cleaning, clean equipment immediately (before material dries/cures - use appropriate solvent/water; disassemble disc, shaft, seals for thorough cleaning; dried paint/ink is very hard to remove), maintenance (daily: clean disc/shaft/vessel after use, inspect disc for wear (saw teeth rounding = reduced shear - replace), check seals for leaks; weekly: inspect belt/gearbox (if belt-driven), lubricate bearings per manufacturer, check motor temperature; monthly: speed calibration (tachometer), bearing inspection, electrical check; semi-annually/annually: professional PM (bearings, seals, gearbox oil, motor), troubleshooting (motor overload/trips (overfilled vessel, too high viscosity, disc too large, material settled at bottom, bad bearing - reduce load, check viscosity, proper disc size, clear settled material, service), excessive vibration (shaft bent, disc unbalanced/worn, vessel not clamped, bearing failure - inspect/replace, clamp vessel, service), poor dispersion / target fineness not reached (disc too small, speed too low, time too short, pigment too hard to disperse, over-thick formulation - increase disc size/speed/time, adjust formulation, use bead mill for hard-to-disperse pigments (HSD is pre-disperser, bead mill for fine dispersion)), excessive heat (high speed too long, no cooling, high viscosity - reduce time/speed, use jacketed cooling, solvent loss control), material splashing/vortex (disc too high, speed too high, no baffles - lower disc, reduce speed, add baffles), and safety (rotating shaft/disc hazard (entanglement, shear - never reach into vessel while running; use safety guard/cover; lockout/tagout for maintenance; long hair, loose clothing, jewelry hazard), pinch/ Crush (shaft lifting/lowering mechanism - keep hands clear), dust hazard (pigment/filler powder addition - use dust mask, local exhaust, dust collection), solvent/fire hazard (solvent-based materials - use explosion-proof disperser, fume extraction, no ignition sources; proper grounding/bonding for static), noise (high-speed dispersers can be loud (>85 dB) - wear hearing protection), ergonomics (heavy vessel/material handling - use lifting aids), electrical (high-power models - proper grounding, lockout/tagout) are important for safe, effective dispersion.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Speed (RPM) calibration recommended every 6-12 months using calibrated tachometer (verify at multiple settings (low, medium, high); accuracy typically +/- 2-5% with VFD, +/- 5-10% for mechanical; if significantly off, service motor/controller). Timer accuracy (if equipped) every 6-12 months. For production/regulated use (pharma, food, ISO 9001), follow equipment maintenance schedules and maintain records (calibration certificates, maintenance logs, repair records). Disc wear inspection is critical (every batch or weekly - worn saw teeth reduce shear efficiency and dispersion quality; replace disc when teeth are visibly rounded or when dispersion time increases significantly). Bearing temperature/vibration monitoring (monthly or per PM schedule - indicates wear). Full preventive maintenance annually (bearings, seals, gearbox, motor, electrical). HSDs are industrial machines - regular maintenance ensures consistent dispersion quality and prevents downtime. For pharma/food GMP, equipment must be qualified (IQ/OQ/PQ) and maintained per SOPs.
Q7: Are supporting consumables universal?
A: Disperser disc (saw-tooth/cowles disc - replacement, specific to shaft diameter and desired disc size (various diameters available; material: stainless steel 304/316, carbon steel, abrasion-resistant coatings for abrasive fillers), shaft (replacement - specific to model), seals/gaskets (replacement - specific), bearings (standard industrial bearings - may be universal or specific), vessels (mixing cans/vessels - standard or specific; stainless steel, carbon steel, plastic for lab), clamps/stands, and cleaning supplies (solvents, scrapers, brushes) are available from industrial/lab supply companies, though discs, shafts, and seals are often disperser-specific (use OEM or certified compatible parts to ensure fit and safety). Long-term consumable cost includes disc replacement (periodic, especially with abrasive fillers), bearings/seals (every 1-5 years), and vessel wear.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes size/capacity (lab (0.5-5 L, 0.5-2 HP), pilot (5-50 L, 2-10 HP), production (50-10000+ L, 10-500+ HP)), motor/drive (fixed speed (simple, low cost) or variable speed (VFD/inverter - precise control, soft start, energy efficient; recommended), motor type (TEFC (totally enclosed fan cooled - standard), explosion-proof (XP - for solvent/flammable environments; ATEX/IECEx rated), washdown (stainless, for pharma/food)), shaft lift (manual (hand wheel - lab/small), hydraulic (smooth, heavy duty - production), electric (linear actuator), pneumatic), disc (diameter (typically 1/3 to 1/2 vessel diameter), type (saw-tooth/cowles (standard for dispersion), flat blade, high-viscosity blade, abrasion-resistant coated (for silica/carbon black)), material (304/316 stainless, carbon steel, carbide-tipped for extreme abrasion)), vessel (jacketed (heating/cooling with water/oil/steam), baffled (improves circulation, reduces vortex), vacuum/pressure (for degassing, oxygen-sensitive materials), sanitary (316L, polished, no dead legs for pharma/food), material (stainless 304/316, carbon steel, plastic (HDPE) for lab), controls (analog (dial, simple) or digital (PLC, touchscreen, recipe storage, data logging, RPM/temp monitoring, 21 CFR Part 11 for pharma), safety (shaft guard, emergency stop, overload protection, interlocks (vessel clamp interlock, lift interlock), lockout/tagout), accessories (extra discs (various sizes), vessels, clamps, dust collection cover, pumping/transfer, cooling/heating circulator, calibration certificate), certifications (CE, UL, ATEX/IECEx, ISO 13849, 3-A/SPI for sanitary), language and accessories. Additional discs, vessels, and accessories can be ordered separately.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes disperser (motor, shaft, disc, stand/frame, controls), vessel/clamp (sometimes), power cord, and instruction manual. On-site installation, commissioning, and operator training ARE typically included or strongly recommended for production-scale dispersers (industrial machines requiring electrical hookup, mechanical installation, safety verification, and user training; installation by manufacturer or certified technician is standard). For lab/benchtop models: self-installation is feasible (place on bench, clamp vessel, plug in, use) but initial training on proper technique (disc positioning, speed, material loading) is recommended. Always verify safety features and operation before production use.
Q10: What types of materials are compatible with this equipment?
A: The single shaft high speed disperser disperses/mixes various liquid-solid systems including paints and coatings (architectural (latex, alkyd, enamel), industrial (epoxy, polyurethane, automotive, coil, can, wood, marine), primers, undercoats, high-solids, water-based and solvent-based - pigment/filler dispersion into resin/vehicle; the HSD is the workhorse of paint manufacturing), inks (offset, flexo, gravure, screen, inkjet (pre-dispersion), pigment concentrates, colorants - high pigment loading dispersion), adhesives and sealants (caulks, adhesives (PVA, epoxy, polyurethane), sealants (acrylic, silicone, polysulfide), fillers (calcium carbonate, talc, fumed silica) dispersion), chemicals (pesticide suspensions (wettable powders, suspension concentrates), fertilizer suspensions, catalyst slurries, ceramic slurries, pigment pastes, carbon black dispersions), cosmetics (pigment dispersion for color cosmetics (foundations, lipsticks, eyeshadows, mascaras), filler dispersion for creams/lotions/pastes, nail polish), pharmaceuticals (ointments, creams, pastes, suspensions (API dispersion), topical formulations - GMP/sanitary design required), food (pastes, sauces, confectionery (chocolate, spreads), food colorant dispersion, additives - food-grade construction required), and composites (polymer composites, casting resins, BMC/SMC, filler dispersion for thermosets). NOT suitable for: Very high viscosity materials (>50,000-100,000 cP, e.g., heavy pastes, dough, rubber compounds - HSD cannot circulate high viscosity; use double planetary mixer, kneader, or extruder), very low viscosity with low solid content (insufficient shear - HSD needs some viscosity to transmit shear; for thin liquids, use high-shear mixer or homogenizer), materials requiring deagglomeration to sub-micron/nano size (HSD is a pre-disperser (typically achieves 10-50 micrometers fineness); for finer dispersion (<10 micrometers, nano), use bead mill, three-roll mill, or high-pressure homogenizer after HSD pre-dispersion), gas-liquid or liquid-liquid emulsification requiring fine droplets (HSD can do coarse emulsification but for fine emulsions use rotor-stator homogenizer or high-pressure homogenizer), shear-sensitive materials (high shear can degrade polymers, proteins, cells - use low-shear mixer), and materials with large solid particles that can damage disc (screen/grind first). IMPORTANT: Single shaft high speed disperser (HSD) fundamentals: (1) How it works: A motor drives a vertical shaft with a saw-tooth (cowles) disc at the bottom. The disc rotates at high speed (typically 500-5000 RPM, depending on size), creating a high tip speed (20-30 m/s). The saw teeth on the disc create intense shear and turbulence as they move through the liquid. Material is drawn from above and below the disc, flung outward by centrifugal force, creating a circulation pattern in the vessel (up the walls, down the center). This shear and circulation breaks pigment/filler agglomerates and wets particles with resin/vehicle. (2) Key parameters: - Tip speed: The most important parameter for dispersion. Tip speed = pi x disc diameter (m) x RPM / 60. Typical dispersion tip speed: 20-30 m/s. Below 15 m/s = insufficient shear (poor dispersion). Above 30 m/s = excessive heat, air entrainment, wear. - Disc diameter: Typically 1/3 to 1/2 of vessel diameter. Larger disc = more flow/circulation, lower RPM for same tip speed. Smaller disc = higher shear zone but less circulation. - Disc position: 1-2 disc diameters above vessel bottom, fully submerged (1/3 to 1/2 liquid depth from bottom). Too high = vortex/air entrainment. Too low = poor circulation, sedimentation. - Vessel: Baffles (3-4 vertical plates on vessel wall) prevent vortex and improve circulation. Without baffles, material spins in vortex with poor mixing. Jacketed vessel for temperature control. - Time: Dispersion time depends on pigment type, loading, target fineness. Typically 10-60 minutes. Monitor with grind gauge (Hegman) to determine endpoint. - Viscosity: Optimal for HSD is 100-50,000 cP. Too thin = no shear transmission. Too thick = no circulation, motor overload. (3) HSD vs other dispersion equipment: - High speed disperser (HSD): Pre-dispersion, 10-50 micrometers fineness, high throughput, low cost, versatile. Workhorse for paint/ink. - Bead mill / sand mill: Fine dispersion (<1-10 micrometers, nano), uses grinding media, higher energy, used after HSD for hard-to-disperse pigments (carbon black, phthalocyanine). - Three-roll mill: High shear for pastes/high viscosity, very fine dispersion, low throughput, for inks, cosmetics, electronics. - Rotor-stator homogenizer: Fine emulsification, high shear, for liquids/creams, lower viscosity. - Planetary mixer / double planetary: High viscosity, gentle mixing, for adhesives, sealants, composites. - High-pressure homogenizer: Nano emulsions, cell disruption, very high pressure. HSD is typically the first step (pre-dispersion) in a dispersion process, followed by bead mill if finer fineness is needed. (4) Common errors: - Overloading motor (too much material, too high viscosity, too large disc - causes tripping/burnout). - Wrong disc position (too high = air entrainment, too low = sedimentation). - No baffles (vortex, poor circulation). - Adding powder too fast (dust, agglomerates, overload - add gradually). - Running dry (no liquid - disc overheats, damages shaft/seals). - Over-dispersion (too long at high speed - heat, viscosity reduction, pigment re-agglomeration, energy waste; monitor fineness and stop at target). - Not cleaning immediately (dried material is very hard to remove, can contaminate next batch, damage seals). - Using wrong disc size (too small = poor flow; too large = overload, poor clearance). - Ignoring disc wear (worn teeth = poor dispersion; replace disc regularly). - For solvent-based materials without explosion-proof equipment (fire/explosion hazard - always use XP disperser and proper ventilation/grounding). (5) Scale-up: When scaling from lab to production, maintain constant tip speed (not constant RPM) and similar disc-to-vessel ratio. Power per unit volume and shear history should be comparable. Scale-up of dispersion is not trivial - pilot testing is recommended. (6) Safety: HSDs are powerful industrial machines. Key hazards: rotating shaft entanglement, material splashing (chemicals, solvents), dust (pigments), noise, electrical, fire (solvents). Proper guarding, PPE (safety glasses, gloves, hearing protection, dust mask), lockout/tagout, explosion-proof equipment for solvents, and training are essential.
Tips: For more details, quotes and customized solutions, please contact us anytime. We’re always ready to serve you professionally.