Lightnin (SPX FLOW)
Proven Mixing Technology for Demanding Applications
Siewert Equipment and F.R. Mahony proudly represent Lightnin®, a flagship brand of SPX FLOW, delivering industry-leading mixing solutions for municipal, industrial, and process applications.
Founded in 1923, Lightnin is globally recognized for its innovative mixer designs and deep application expertise across fluid processing industries. With its primary manufacturing facility located in Rochester, New York, Lightnin offers the added benefit of local manufacturing, responsive service, and reduced freight costs.
Siewert Equipment has partnered with Lightnin since 1961, supporting customers throughout Upstate New York. F.R. Mahony serves as the Lightnin distributor across New England, specializing in water and wastewater applications. Together, our teams provide unmatched regional coverage, technical expertise, and long-term support.
Siewert Equipment has worked with Lightnin since 1961.
Lightnin Retrofit of Competitor Mixer
Lightnin mixer demo at a Siewert Equipment mixing seminar
SR Mixers
Series 10 Mixers
Series 10 Mixers
MagMixer® MBE
LB2 LabMaster & BioMixer
LB2 LabMaster & BioMixer
LB2 LabMaster & BioMixer
LB2 LabMaster & BioMixer
Enhanced Classic Line (ECL) Mixers - Portable / Fixed Mount Mixers
Enhanced Classic Line (ECL) Mixers - Portable / Fixed Mount Mixers
Enhanced Classic Line (ECL) Mixers - Portable / Fixed Mount Mixers
Enhanced Classic Line (ECL) Mixers - Portable / Fixed Mount Mixers
Enhanced Classic Line (ECL) Mixers - Portable / Fixed Mount Mixers
80 Series Mixers
70 Series Mixers
70 Series Mixers
History of Lightnin (SPX FLOW)
Established over 100 years ago, Lightnin has built a legacy as one of the most trusted names in industrial mixing. As part of SPX FLOW, Lightnin continues to advance mixing technology through rigorous engineering, testing, and continuous innovation.
Lightnin mixers are designed to deliver reliable, repeatable performance in the most demanding environments—from wastewater treatment plants to pharmaceutical production facilities. With a focus on durability, efficiency, and process optimization, Lightnin solutions help customers improve mixing performance while reducing operational costs.
What Are Lightnin® Mixers?
Lightnin® mixers are engineered systems designed to deliver precise, efficient, and reliable mixing for a wide range of fluids and tank configurations. Available in top-entry, side-entry, bottom-entry, inline, and sanitary designs, Lightnin mixers are tailored to meet the exact needs of each application.
These systems support improved process consistency, enhanced treatment performance, and long equipment life across municipal and industrial markets.
Key Features:
- Engineered mixing solutions for specific process goals
- Proven designs backed by in-house testing and modeling
- Durable construction for continuous-duty applications
- Sanitary and seal-less options to prevent contamination
- Scalable solutions for small tanks through large basins
Lightnin Product Offerings from Siewert Equipment & F.R. Mahony
Surface & Subsurface Aeration Mixers
- Designed for municipal wastewater treatment applications, these mixers improve oxygen transfer and basin mixing efficiency.
SanStar® Series Sanitary Mixers
- Sanitary, sealed or seal-less designs ideal for pharmaceutical, biotech, and food & beverage processes—available for both small and large tank volumes.
In-Tank & In-Line Mixers
- Flexible configurations including top-entry, side-entry, bottom-entry, and inline mixers for industrial and process applications.
Mixing Design & Consulting Services
- Access to Lightnin’s in-house testing laboratory and application engineers to evaluate existing systems and identify opportunities for performance improvement.
Aftermarket Services
- Gearbox Replacement Exchange
- Conversion Mixer Exchange
- Reducer Mixer Exchange
- Support for Lightnin and competitive mixer models
OEM Replacement Parts
- Genuine Lightnin OEM parts to ensure optimal performance, reliability, and equipment longevity.
Industries That Rely on Lightnin Mixers
Lightnin mixing solutions are trusted across a wide range of industries, including:
- Municipal Water & Wastewater Treatment
- Pharmaceutical & Biotechnology
- Chemical Processing
- Petroleum & Refining
- Mining & Minerals Processing
- Pulp & Paper
- Food & Beverage
- And more
Benefits of SPX FLOW & Lightnin Solutions
SPX FLOW brands are built on a legacy of engineering excellence and customer-focused innovation. Benefits of Lightnin mixers include:
- Long-lasting, industrial-grade construction
- Engineered solutions tailored to your process
- Continuous investment in new product development
- Proven durability in demanding environments
- Global presence with sales in more than 150 countries
FAQ: Lightnin® Mixers
What are Lightnin mixers used for?
- Lightnin mixers are used in a wide range of applications including municipal water and wastewater treatment, pharmaceutical and biotech processing, chemical manufacturing, food & beverage production, mining, pulp and paper, and petroleum refining. They are engineered to deliver reliable and efficient mixing in demanding environments.
What types of Lightnin mixers are available?
- Lightnin offers top-entry, side-entry, bottom-entry, inline, surface, subsurface, and sanitary mixers. These configurations allow systems to be customized for specific tank sizes, process goals, and industry requirements.
Are Lightnin mixers suitable for wastewater treatment plants?
- Yes. Lightnin mixers are widely used in municipal wastewater treatment for aeration, solids suspension, and basin mixing. Their rugged design and proven performance make them ideal for continuous-duty wastewater applications.
Do Lightnin mixers support sanitary and hygienic processes?
- Absolutely. The SanStar® Series sanitary mixers feature sealed or seal-less designs that help prevent contamination and meet the needs of pharmaceutical, biotech, and food & beverage applications.
Can existing mixing systems be retrofitted with Lightnin mixers?
- Yes. Siewert Equipment and F.R. Mahony can evaluate existing systems and recommend retrofit or upgrade options using Lightnin mixers to improve performance, efficiency, and reliability without requiring a full system replacement.
What aftermarket services are available for Lightnin mixers?
- We offer comprehensive aftermarket support including gearbox replacement exchange, conversion mixer exchange, reducer mixer exchange, OEM replacement parts, and service support for both Lightnin and competitive mixer models.
Does Lightnin provide mixing design and consulting services?
- Yes. Lightnin offers mixing design support backed by in-house testing laboratories and experienced application engineers who can analyze your process and identify opportunities for optimization.
Where are Lightnin mixers manufactured?
- Lightnin’s primary manufacturing facility is located in Rochester, New York. This allows for responsive support, local service, and reduced lead times for customers in the Northeast.
What territories do Siewert Equipment and F.R. Mahony support?
- Siewert Equipment supports all of Upstate New York, while F.R. Mahony serves New England including Massachusetts, New Hampshire, Maine, Rhode Island, Connecticut, and Vermont.
How do I get help selecting the right Lightnin mixer?
- Our experienced application engineers will work closely with you to understand your process requirements and recommend the best-fit Lightnin mixing solution for your system.
Siewert Equipment & F.R. Mahony offers Lightnin Mixers in the following territories:
- New York (serving all Upstate NY) through Siewert Equipment, with offices and service centers in Rochester & Albany.
- New England (serving MA, NH, ME, RI, CT, and VT) through F.R. Mahony, with offices in Rockland and a service center in Oxford, MA.
For more information, follow this link to view our Lightnin Mixer customer testimonials.
Experts in Mixing Technology
Siewert Equipment and F.R. Mahony have been leading experts in pump systems, process equipment, and mixing technology since 1949. Our application engineers will be able to recommend the best-fit product for your specific application so that you get the mixing system that is suited for your needs.
Learn More About Lightnin
Watch these SPX Flow Lightnin mixing technology videos on our Siewert Equipment YouTube playlist:
Contact us below with any questions.
