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Plenty / Lightnin Mixer
Lightnin Mixer

LIGHTNIN has over 80 years of unrivaled experience in mixing technology, process knowledge, and technological innovation. LIGHTNIN enjoys a global reputation for durable, long-lasting mixers, agitators, aerators, and flocculators for fluid process systems. We offer a full spectrum of impeller designs for diverse applications. In addition, we offer a worldwide service network, mixer repair, gearbox repair, and replacement parts programs. Look to LIGHTNIN for knowledge, technology and service excellence.


EV Series

For single-purpose mixing applications

  • 1/4-, 1/3-, 1/2- and 3/4-HP models available
  • Lifetime grease-lubricated gearbox
  • Switch, cord and plug are standard - no need for hard wiring on single-phase TEFC motors
  • Oversized bearings provide superior shaft support
  • High-flow A310 impeller is standard
  • Available with LIGHTNIN's QAD validation support package
  • Backed by LIGHTNIN's 100% process guarantee

Choose from 3 mounting options:

  • Clamp mount
  • Plate Mount
  • Flange Mount



Series 10

Series 10 mixers deliver a superior combination of value and performance in a wide range of applications.

  • Available from 1 to 30 HP with speeds from 11 to 125 RPM
  • Choose from a wide variety of motor options, including explosion-proof and multiple-speed units
  • Compact design with fewer parts for easy installation and maintenance
  • Check, add or change oil without removing the safety guard
  • Largest output bearings in the size range provide unmatched L10 life (>> 100,000 hours)
  • Unique output shaft connection reduces shaft deflection to extend seal life
  • Longer shaft lengths accommodate a wider range of tank configurations
  • Leakproof reducer design


  • Open- and closed-tank models available
  • Choice of dry-running single mechanical seals or lubricated double mechanical seals
  • Optional seal pedestal design permits operation up to vessel temperatures of 400°F (approx. 200°C)
  • Optional angle riser brackets eliminate the need for baffles

Series 500/600

LIGHTNIN Series 500/600 Mixers are designed to provide rugged, dependable service and economy in a wide range of applications.

  • A simple design with fewer parts for minimum maintenance
  • Mechanical seal options cover a wide range of pressure and temperature requirements for wet- and dry-running applications. All are interchangeable for easy upgrade.
  • Integral open-tank mounting base is bolted directly to the mounting surface - no separate mounting plate needed
  • Horsepowers from 1 to 125 and speeds from 23 to 190 rpm

Choose from three models:

  • Series 500-Q: for open tank installations
  • Series 500-S: for mechanical seal applications
  • Series 600-S: for mechanical seal applications. Seals can be changed without removing the gear drive.
  • Non-contacting gas seals available with Series 500 and 600 Mixers

Series 70/80

70 Series Mixers - The Workhorse

The most specified and most proven mechanical design technology in the world makes LIGHTNIN Series 70 Mixers ideal for a wide range of applications.

  • Bearings are sized far beyond AGMA requirements for long service life
  • Mechanical seals are 100% factory tested and feature a cartridge design for easy, convenient replacement.
  • Helical change gears are easy to replace to meet new or changing processing requirements
  • Available in 1 to 200 hp with speeds from 16.5 to 280 rpm
  • Self-setting seals

80 Series Mixers - The Shock Absorber

LIGHTNIN Series 80 Mixers are recommended for processes with high fluid forces on the impellers, and long impeller shaft applications.

  • Bearings are sized far beyond AGMA requirements for long service life
  • Mechanical seals feature a cartridge design for easy, convenient replacement.
  • Helical change gears are easy to replace to meet new processing requirements
  • Available in 1 to 200 hp with speeds from 16.5 to 280 rpm
  • Self-setting seals

Series 98

98 Series Mixers optimize productivity and reduce downtime


  • IsoLoad design protects gearing from dynamic loads to extend gear life
  • Available from 20 to 150 HP with AGMA speeds from 20 to 100 RPM
  • Parallel shaft, double-reduction design provides maximum installation flexibility where there are overhead space limitations
  • Carburized and ground helical gearing for quiet operation and extended gear life
  • Integral dry well oil dam prevents lubricant from leaking down the mixer shaft
  • Integral positive displacement pump provides continuous lubrication; Forced lubrication system filters out contaminants to increase oil life
  • Integral mounting plate eliminates the need for an additional bolted plate; can be mounted on large threaded rods
  • Standard C-face motor and pedestal mount reduces assembly time


Series 700/800

The Super Powers

LIGHTNIN 700/800 Mixers are designed to provide reliable service in the largest, most demanding applications, from pharmaceutical fermentation and large-scale chemical processing to minerals processing and heavy sludge waste treatment.

  • Bearings are sized far beyond AGMA requirements for minimum maintenance and long service life
  • Heavy-duty motor mount is standard
  • Horsepowers from 25 to 3000 + and speeds from 230 to 11.4 rpm
  • Choice of replaceable cartridge seals
  • Largest ouput shaft per allowable torque for greater bending design & longer shafts.
  • Case carburized & ground helical-bevel combination gearing for unmatched efficiency, quiet running & long life

New design for 784/884 Mixers

  • Positive direct drive
  • Rugged housing designed for easy assembly and maintenance
  • Tapered roller bearings handle overhung shaft loads
  • Triple reduction gearing has robust AGMA service factor
  • Available on larger units to 1250 hp



Mixers for blending and prevention of solids build-up.

High-efficiency LVSES mixers are ideal for a variety of chemical processing, crude edible oil and petrochemical processing applications.

  • Choice of V-belts and tooth belts to accommodate metric frame and NEMA frame motors
  • Choice of four sizes optimized for the range of 2.2 to 55 kW
  • Fast and easy seal changes: No need to loosen motor support or remove belts, drive pulley and bearings to access mechanical seal
  • Oversized bearings provide  L10 life exceeding 100,000 hours
  • One-piece cantilever-design output shaft helps eliminate runout to increase seal life


  • Choice of standard and special reduction ratios
  • Product-lubricated single mechanical seals and barrier fluid-lubricated double mechanical seals are available
  • Packed gland stuffing box design available for paper stock service
  • Choice of V-belts and toothbelts accomodate metric frame and NEMA frame motors



For petroleum storage applications.

LSES Mixers combine heavy-duty construction and variable positioning for maximum flexibility in petroleum applications

  • Swivel-angle design provides full 60-degree angular movement
  • Available in 1 to 75 hp
  • High-efficiency A310 and A312 impellers provide 50% greater blending capacity that units with conventional propeller designs
  • Designed for fast, easy maintenance
  • Mechanical seal is easy to replace without draining the tank by use of a tapered shaft shutoff



  • Can be used as stand-alone mixers or in combination with tank/mixer systems
  • High-efficiency mixing action can reduce chemical consumption
  • Fast and inexpensive to install and operate
  • Virtually maintenance-free
  • No moving parts
  • Available for quick delivery - usually within 4 weeks
  • Sizes from 1 to 12 inches/25 to 300 mm
  • 316L stainless steel material of construction


  • Larger sizes available upon request
  • Custom polishes
  • High alloy elements available for use with aggressive chemicals
  • Coatings, finishes and polish
  • Injection and sampling ports
  • Sanitary fittings
  • Code Welding


Series 50

For corrosive environments.

Series 50 mixers are in a performance class with Alloy 20, Monel and Hastelloy C.

  • Reinforced thermoset polyester construction withstands temperatures to 250° F, pressures up to 150 psi and use with aggressive chemicals
  • Recommended for use in general chemical, petrochemical, hydrocarbon, refining, caustics and pulp and paper applications
  • The unique segmented design produces 50% more mixing action than standard-design static mixers
  • Segments can be individually aligned within each flight to customize the mixing action to your process requirements