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70 Series - Medium Torque Top Entering Mixer

Product Type:
Mixers And Blenders / Top Entry Mixers

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


70 Series Mixers


  • Wide Range of Power: Lightnin Series 70 Mixers cover the range from 0.75 - 150kW (1 - 200HP). They are available in both double and triple reduction gearing, and offer speeds from 280 down to 9 rpm.
  • Motor Mounting Options: The 70 Series is available with a choice of motor mounting options to support your needs. For units up to 30kw (40HP) our default motor pedestal helps ensure simple motor alignment. A motor bracket is available for all sizes.
  • Full Spectrum of Impellers: Series 70 Mixers offer a full choice of impellers in order to optimize your process results.
  • Variable Speed Drives: The Lightnin Series 70 mixers can be driven with a variable frequency drive where speed variations are needed.
  • Right Angle Gearbox Design: Due to the right angle gearbox the 70 Series can be installed where headroom may cause a restriction to other drives. Guaranteed Performance: Together we decide what mixing should do to optimize your process. Then we recommend the impeller, mixer speed, shaft length and other specifications. And we guarantee performance results that are backed up by our standard warranty.
  • Tested 100%: We employ a non-load test run on every Series 70 and Series 80 before they are shipped.


Our 70 Series now offers an extended choice of mechanical seals. Included as standards across our range are simple dry running single mechanical seals. Also available are double mechanical seals with integral bearings and of course our own Lightnin Cartridge seal. The extension of more mechanical seals across our range makes the 70 Series even more configurable to meet your needs - as standard.

  • Available with motor pedestals up to 30kw (40hp) to ensure motor alignment. Motor brackets are available for all sizes.
  • 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 0.75kw to 150kw (1hp to 200hp) with speeds from 9 to 280 rpm
  • Self-setting seals
  • All guarding meets OSHA and CE requirements and available options meet ATEX standards.

Change Gears
Easily replaceable, helical gears are standard, so speed changes are easily made to meet new process requirements. No special tools. No need to dismantle the mixer or remove it from the tank. Heavy wall pinions provide maximum protection against damage from accidental overloads.

Positive Direct Drive
Mixer shaft slides directly into the quill, where it is rigidly coupled by a key and keyway. This design is the veteran of millions of hours of mixing.

Coupling Guards
Coupling guards meet CE and OSHA standards and protect people from moving parts.

Spiral Bevel Gears
High-efficiency spiral bevel gear and pinion are quiet running. They are precision generated, match lapped, individually mounted and micrometer checked to make sure.

Motor Mount
Standard mounting assures positive alignment for flange or foot mounted motors. A machine earth grounding point is provided as standard.

Pedestal Cover
Personnel are protected from rotating parts by a guard design that meets CE and OSHA requirements.

Oil Dam
Leakage down the mixer shaft is avoided by an oil dam around the quill shaft.

Splash Lubrication
Rotating gears dip into the oil sump and assure a constant flow of oil to all surfaces. No need for pumps or piping.

Beyond AGMA
Bearings are sized far beyond AGMA requirements to minimize maintenance and provide long service life.

The replaceable cartridge design, a Lightnin original, is standard on Series 70 units. Light in weight. Easy to replace. Our design offers unrivaled convenience. Integral stuffing box and open tank designs also available. Each Lightnin Cartridge seal is still tested 100% prior to shipment and offers the very best in reliability while our other seal selection meet performance. Additionally we continue to supply low and high pressure stuffing boxes. All fits are dowel or rabbet to assure alignment. You’ll find this Lightnin design makes for easy repacking.



As part of our commitment to our Customers and their operations, SPX FLOW has introduced LightninLube™, a range of gear oil for our Lightnin Mixers. It is available to order with your new equipment or as a maintenance item throughout the life of your equipment. LightninLube is manufactured to AGMA Standard 8005-D94. Our synthetic oils are designed to give you a wide operating range and are available in ISO 100, ISO 150, ISO 220 and ISO 320 grades.


Medium Top Entry Mixers 70 Series (B-552) US