Company

About us

Water is both the life-giving element and a powerful force that needs to be controlled to be used to our advantage. Mirian Ronchi, the founder of Mac3, had the foresight to develop innovative systems that would simplify the control of liquid levels.

In 1981, the Mac3 float switch model was born, introducing an innovative and reliable product model that had never been seen before. Since then, we have been designing and manufacturing high-quality and innovative solutions for level control. We offer a wide range of float switches and electronic pump controllers for single and multiple pump sets automation.

Our commitment to innovation, expertise, and reliability has made us a valuable partner and has built a strong trust-based relationship with our Italian and international clients. This is our identity, as emphasized by our slogan: TRUST MATTERS.

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Where we come from

Mac3’s history is closely tied to the dedication of its founder, Mirian Ronchi (often referred to as “Dr. Ronchi”), to developing reliable and straightforward solutions for water resource management.

After the devastating flood in Florence in 1966, Ronchi established his first company, a wholesale distributor of heating and plumbing materials. In 1971, he designed the first float switch, which served as the precursor to the Mac3 float switch that was introduced to the market in 1981 and ultimately gave the company its name.

The early years of the company were defined by Ronchi’s expertise and passion, which were shared by the entire Mac3 team. In order to meet the growing demand, Mac3 moved to a new and larger factory. After 1995, the company began its expansion and internationalization process.

During this time, Mac3 obtained various quality and product certifications and began designing and producing a new range of electronic products.
In the last decade, Mac3 has focused on developing new control systems, such as web HelpDesk, which have allowed the company to enter the world of the Internet of Things. Additionally, the company has expanded its range of variable frequency drives to higher powers capacity and new sectors such as agriculture, solar pumping, swimming pools, and recirculation pumps.

Why choose us

At Mac3, we have a longstanding commitment to designing and manufacturing systems and devices for effective water resource management. We are proud to be chosen by numerous major players of the industry, not only for the quality of our products, but also for our customer-centric approach, adherence to commercial agreements, and transparent pricing policy.

  • Reliability: We guarantee 100% Made in Italy quality and meticulous oversight of the entire supply chain, from design to final testing.
  • Customer-first: Our top priority is understanding and meeting the specific needs of the companies that select us as their trusted technological partners, going above and beyond the role of a simple supplier.
  • Innovation: Our relentless pursuit of new challenges fuels the development of cutting-edge products that can swiftly adapt to the evolving dynamics of the hydraulic sector.

SILVANO PEDROLLO
Pedrollo SpA
"MAC3 is our go-to supplier for floats, which have consistently proven reliable and able to meet our customers' needs. The service is impeccable, thanks to their high level of professionalism, timeliness, and effectiveness in meeting our commercial and technical requirements. For its dynamism and innovation, I can consider MAC3 a very active supplier, capable of providing advanced products suitable for the increasingly demanding requirements of users."
ING. AMEDEO VALENTE
Lowara XylemGroup
"Mac3 is a long-standing supplier for Lowara and Flygt. From a product reliability perspective, the quality level has always been certainly excellent, as also evidenced by the parameters highlighted in our Vendor Ratings. In terms of service, there has always been a willingness to provide timely and accurate responses to our needs. Mac3 has always shown itself to be a company oriented towards innovation, evidence of this is the range of inverters that we have decided to adopt for our domestic pressurization systems, a product that, according to our assessments, is destined to represent the future."
Michele Leone
Grundfos & DWT
"Mac3 is a reliable supplier that has contributed to the growth of our company. Mac3's float switches can be considered the standard in our market sector. Dynamism and Innovation seem to be ingrained in the DNA of the president, Mirian Ronchi, who has had the ability to instill these positive characteristics throughout Mac3."
Giuseppe Speroni
Speroni SpA
"MAC 3 is our main supplier of float switches. The products, as well as being internationally recognized, are very reliable, and the flexibility of production, including customizations, is unrivaled. Innovation is always present, as is the dynamism of the company."
Jerzy Sznajder
PompArt
"Mac3 is one of our most important suppliers."
Udo Nacke
X Con
"Mac3 is the live evidence to disprove the occasionally heard pretension. Italian companies "don't work that hard" or "work less efficiently" etc. Mac3 has, from the very beginning, been very hard and efficiently working. Quality of the products has always been excellent. And "Mr. Mac3", Dott. Mirian Ronchi, has not only been one of the best inventors and managers but also a personality of charisma, warmth and last but not least humour that can’t be found very often."
Myle T.Tran(Ms.)
Koshin Ltd.
"Mac3 is a very important supplier, the quality is very good and even when we found the defective goods, you replied promptly. Also we've been so pleased to your kindly encourage when it was happened the earthquake."
Nelson Urbano Meza
Koslan
"Mac3 has been a strong partner and a very good friend of Koslan. We feel Mac3 close to us, no matter the distance between our companies, with is Post Sales Services. We think the success of Mac3 has built over the base of its philosophy; new solutions for the same problem."
Shaun Nelson
Eurotec
"Mac3 is our most important, valued and strategic suppliers: is a partner in our business. We have built our reputation on the Mac3 reputation of being a quality orientated and trusted supplier."
Kappanoszki Erika
NIVELCO
"The quality and customer service is prime, the service is fast, flexible and responsive."
Jadwiga Buchta
Metalchem
"MAC3 is for us very reliable supplier of float level switches."
SILVANO PEDROLLO
Pedrollo SpA
"MAC3 is our go-to supplier for floats, which have consistently proven reliable and able to meet our customers' needs. The service is impeccable, thanks to their high level of professionalism, timeliness, and effectiveness in meeting our commercial and technical requirements. For its dynamism and innovation, I can consider MAC3 a very active supplier, capable of providing advanced products suitable for the increasingly demanding requirements of users."
ING. AMEDEO VALENTE
Lowara XylemGroup
"Mac3 is a long-standing supplier for Lowara and Flygt. From a product reliability perspective, the quality level has always been certainly excellent, as also evidenced by the parameters highlighted in our Vendor Ratings. In terms of service, there has always been a willingness to provide timely and accurate responses to our needs. Mac3 has always shown itself to be a company oriented towards innovation, evidence of this is the range of inverters that we have decided to adopt for our domestic pressurization systems, a product that, according to our assessments, is destined to represent the future."
Michele Leone
Grundfos & DWT
"Mac3 is a reliable supplier that has contributed to the growth of our company. Mac3's float switches can be considered the standard in our market sector. Dynamism and Innovation seem to be ingrained in the DNA of the president, Mirian Ronchi, who has had the ability to instill these positive characteristics throughout Mac3."
Giuseppe Speroni
Speroni SpA
"MAC 3 is our main supplier of float switches. The products, as well as being internationally recognized, are very reliable, and the flexibility of production, including customizations, is unrivaled. Innovation is always present, as is the dynamism of the company."
Jerzy Sznajder
PompArt
"Mac3 is one of our most important suppliers."
Udo Nacke
X Con
"Mac3 is the live evidence to disprove the occasionally heard pretension. Italian companies "don't work that hard" or "work less efficiently" etc. Mac3 has, from the very beginning, been very hard and efficiently working. Quality of the products has always been excellent. And "Mr. Mac3", Dott. Mirian Ronchi, has not only been one of the best inventors and managers but also a personality of charisma, warmth and last but not least humour that can’t be found very often."
Myle T.Tran(Ms.)
Koshin Ltd.
"Mac3 is a very important supplier, the quality is very good and even when we found the defective goods, you replied promptly. Also we've been so pleased to your kindly encourage when it was happened the earthquake."
Nelson Urbano Meza
Koslan
"Mac3 has been a strong partner and a very good friend of Koslan. We feel Mac3 close to us, no matter the distance between our companies, with is Post Sales Services. We think the success of Mac3 has built over the base of its philosophy; new solutions for the same problem."
Shaun Nelson
Eurotec
"Mac3 is our most important, valued and strategic suppliers: is a partner in our business. We have built our reputation on the Mac3 reputation of being a quality orientated and trusted supplier."
Kappanoszki Erika
NIVELCO
"The quality and customer service is prime, the service is fast, flexible and responsive."
Jadwiga Buchta
Metalchem
"MAC3 is for us very reliable supplier of float level switches."
SILVANO PEDROLLO
Pedrollo SpA
"MAC3 is our go-to supplier for floats, which have consistently proven reliable and able to meet our customers' needs. The service is impeccable, thanks to their high level of professionalism, timeliness, and effectiveness in meeting our commercial and technical requirements. For its dynamism and innovation, I can consider MAC3 a very active supplier, capable of providing advanced products suitable for the increasingly demanding requirements of users."
ING. AMEDEO VALENTE
Lowara XylemGroup
"Mac3 is a long-standing supplier for Lowara and Flygt. From a product reliability perspective, the quality level has always been certainly excellent, as also evidenced by the parameters highlighted in our Vendor Ratings. In terms of service, there has always been a willingness to provide timely and accurate responses to our needs. Mac3 has always shown itself to be a company oriented towards innovation, evidence of this is the range of inverters that we have decided to adopt for our domestic pressurization systems, a product that, according to our assessments, is destined to represent the future."
Michele Leone
Grundfos & DWT
"Mac3 is a reliable supplier that has contributed to the growth of our company. Mac3's float switches can be considered the standard in our market sector. Dynamism and Innovation seem to be ingrained in the DNA of the president, Mirian Ronchi, who has had the ability to instill these positive characteristics throughout Mac3."
Giuseppe Speroni
Speroni SpA
"MAC 3 is our main supplier of float switches. The products, as well as being internationally recognized, are very reliable, and the flexibility of production, including customizations, is unrivaled. Innovation is always present, as is the dynamism of the company."
Jerzy Sznajder
PompArt
"Mac3 is one of our most important suppliers."
Udo Nacke
X Con
"Mac3 is the live evidence to disprove the occasionally heard pretension. Italian companies "don't work that hard" or "work less efficiently" etc. Mac3 has, from the very beginning, been very hard and efficiently working. Quality of the products has always been excellent. And "Mr. Mac3", Dott. Mirian Ronchi, has not only been one of the best inventors and managers but also a personality of charisma, warmth and last but not least humour that can’t be found very often."
Myle T.Tran(Ms.)
Koshin Ltd.
"Mac3 is a very important supplier, the quality is very good and even when we found the defective goods, you replied promptly. Also we've been so pleased to your kindly encourage when it was happened the earthquake."
Nelson Urbano Meza
Koslan
"Mac3 has been a strong partner and a very good friend of Koslan. We feel Mac3 close to us, no matter the distance between our companies, with is Post Sales Services. We think the success of Mac3 has built over the base of its philosophy; new solutions for the same problem."
Shaun Nelson
Eurotec
"Mac3 is our most important, valued and strategic suppliers: is a partner in our business. We have built our reputation on the Mac3 reputation of being a quality orientated and trusted supplier."
Kappanoszki Erika
NIVELCO
"The quality and customer service is prime, the service is fast, flexible and responsive."
Jadwiga Buchta
Metalchem
"MAC3 is for us very reliable supplier of float level switches."
SILVANO PEDROLLO
Pedrollo SpA
"MAC3 is our go-to supplier for floats, which have consistently proven reliable and able to meet our customers' needs. The service is impeccable, thanks to their high level of professionalism, timeliness, and effectiveness in meeting our commercial and technical requirements. For its dynamism and innovation, I can consider MAC3 a very active supplier, capable of providing advanced products suitable for the increasingly demanding requirements of users."
ING. AMEDEO VALENTE
Lowara XylemGroup
"Mac3 is a long-standing supplier for Lowara and Flygt. From a product reliability perspective, the quality level has always been certainly excellent, as also evidenced by the parameters highlighted in our Vendor Ratings. In terms of service, there has always been a willingness to provide timely and accurate responses to our needs. Mac3 has always shown itself to be a company oriented towards innovation, evidence of this is the range of inverters that we have decided to adopt for our domestic pressurization systems, a product that, according to our assessments, is destined to represent the future."
Michele Leone
Grundfos & DWT
"Mac3 is a reliable supplier that has contributed to the growth of our company. Mac3's float switches can be considered the standard in our market sector. Dynamism and Innovation seem to be ingrained in the DNA of the president, Mirian Ronchi, who has had the ability to instill these positive characteristics throughout Mac3."
Giuseppe Speroni
Speroni SpA
"MAC 3 is our main supplier of float switches. The products, as well as being internationally recognized, are very reliable, and the flexibility of production, including customizations, is unrivaled. Innovation is always present, as is the dynamism of the company."
Jerzy Sznajder
PompArt
"Mac3 is one of our most important suppliers."
Udo Nacke
X Con
"Mac3 is the live evidence to disprove the occasionally heard pretension. Italian companies "don't work that hard" or "work less efficiently" etc. Mac3 has, from the very beginning, been very hard and efficiently working. Quality of the products has always been excellent. And "Mr. Mac3", Dott. Mirian Ronchi, has not only been one of the best inventors and managers but also a personality of charisma, warmth and last but not least humour that can’t be found very often."
Myle T.Tran(Ms.)
Koshin Ltd.
"Mac3 is a very important supplier, the quality is very good and even when we found the defective goods, you replied promptly. Also we've been so pleased to your kindly encourage when it was happened the earthquake."
Nelson Urbano Meza
Koslan
"Mac3 has been a strong partner and a very good friend of Koslan. We feel Mac3 close to us, no matter the distance between our companies, with is Post Sales Services. We think the success of Mac3 has built over the base of its philosophy; new solutions for the same problem."
Shaun Nelson
Eurotec
"Mac3 is our most important, valued and strategic suppliers: is a partner in our business. We have built our reputation on the Mac3 reputation of being a quality orientated and trusted supplier."
Kappanoszki Erika
NIVELCO
"The quality and customer service is prime, the service is fast, flexible and responsive."
Jadwiga Buchta
Metalchem
"MAC3 is for us very reliable supplier of float level switches."
SILVANO PEDROLLO
Pedrollo SpA
"MAC3 is our go-to supplier for floats, which have consistently proven reliable and able to meet our customers' needs. The service is impeccable, thanks to their high level of professionalism, timeliness, and effectiveness in meeting our commercial and technical requirements. For its dynamism and innovation, I can consider MAC3 a very active supplier, capable of providing advanced products suitable for the increasingly demanding requirements of users."
ING. AMEDEO VALENTE
Lowara XylemGroup
"Mac3 is a long-standing supplier for Lowara and Flygt. From a product reliability perspective, the quality level has always been certainly excellent, as also evidenced by the parameters highlighted in our Vendor Ratings. In terms of service, there has always been a willingness to provide timely and accurate responses to our needs. Mac3 has always shown itself to be a company oriented towards innovation, evidence of this is the range of inverters that we have decided to adopt for our domestic pressurization systems, a product that, according to our assessments, is destined to represent the future."
Michele Leone
Grundfos & DWT
"Mac3 is a reliable supplier that has contributed to the growth of our company. Mac3's float switches can be considered the standard in our market sector. Dynamism and Innovation seem to be ingrained in the DNA of the president, Mirian Ronchi, who has had the ability to instill these positive characteristics throughout Mac3."
Giuseppe Speroni
Speroni SpA
"MAC 3 is our main supplier of float switches. The products, as well as being internationally recognized, are very reliable, and the flexibility of production, including customizations, is unrivaled. Innovation is always present, as is the dynamism of the company."
Jerzy Sznajder
PompArt
"Mac3 is one of our most important suppliers."
Udo Nacke
X Con
"Mac3 is the live evidence to disprove the occasionally heard pretension. Italian companies "don't work that hard" or "work less efficiently" etc. Mac3 has, from the very beginning, been very hard and efficiently working. Quality of the products has always been excellent. And "Mr. Mac3", Dott. Mirian Ronchi, has not only been one of the best inventors and managers but also a personality of charisma, warmth and last but not least humour that can’t be found very often."
Myle T.Tran(Ms.)
Koshin Ltd.
"Mac3 is a very important supplier, the quality is very good and even when we found the defective goods, you replied promptly. Also we've been so pleased to your kindly encourage when it was happened the earthquake."
Nelson Urbano Meza
Koslan
"Mac3 has been a strong partner and a very good friend of Koslan. We feel Mac3 close to us, no matter the distance between our companies, with is Post Sales Services. We think the success of Mac3 has built over the base of its philosophy; new solutions for the same problem."
Shaun Nelson
Eurotec
"Mac3 is our most important, valued and strategic suppliers: is a partner in our business. We have built our reputation on the Mac3 reputation of being a quality orientated and trusted supplier."
Kappanoszki Erika
NIVELCO
"The quality and customer service is prime, the service is fast, flexible and responsive."
Jadwiga Buchta
Metalchem
"MAC3 is for us very reliable supplier of float level switches."
SILVANO PEDROLLO
Pedrollo SpA
"MAC3 is our go-to supplier for floats, which have consistently proven reliable and able to meet our customers' needs. The service is impeccable, thanks to their high level of professionalism, timeliness, and effectiveness in meeting our commercial and technical requirements. For its dynamism and innovation, I can consider MAC3 a very active supplier, capable of providing advanced products suitable for the increasingly demanding requirements of users."
ING. AMEDEO VALENTE
Lowara XylemGroup
"Mac3 is a long-standing supplier for Lowara and Flygt. From a product reliability perspective, the quality level has always been certainly excellent, as also evidenced by the parameters highlighted in our Vendor Ratings. In terms of service, there has always been a willingness to provide timely and accurate responses to our needs. Mac3 has always shown itself to be a company oriented towards innovation, evidence of this is the range of inverters that we have decided to adopt for our domestic pressurization systems, a product that, according to our assessments, is destined to represent the future."
Michele Leone
Grundfos & DWT
"Mac3 is a reliable supplier that has contributed to the growth of our company. Mac3's float switches can be considered the standard in our market sector. Dynamism and Innovation seem to be ingrained in the DNA of the president, Mirian Ronchi, who has had the ability to instill these positive characteristics throughout Mac3."
Giuseppe Speroni
Speroni SpA
"MAC 3 is our main supplier of float switches. The products, as well as being internationally recognized, are very reliable, and the flexibility of production, including customizations, is unrivaled. Innovation is always present, as is the dynamism of the company."
Jerzy Sznajder
PompArt
"Mac3 is one of our most important suppliers."
Udo Nacke
X Con
"Mac3 is the live evidence to disprove the occasionally heard pretension. Italian companies "don't work that hard" or "work less efficiently" etc. Mac3 has, from the very beginning, been very hard and efficiently working. Quality of the products has always been excellent. And "Mr. Mac3", Dott. Mirian Ronchi, has not only been one of the best inventors and managers but also a personality of charisma, warmth and last but not least humour that can’t be found very often."
Myle T.Tran(Ms.)
Koshin Ltd.
"Mac3 is a very important supplier, the quality is very good and even when we found the defective goods, you replied promptly. Also we've been so pleased to your kindly encourage when it was happened the earthquake."
Nelson Urbano Meza
Koslan
"Mac3 has been a strong partner and a very good friend of Koslan. We feel Mac3 close to us, no matter the distance between our companies, with is Post Sales Services. We think the success of Mac3 has built over the base of its philosophy; new solutions for the same problem."
Shaun Nelson
Eurotec
"Mac3 is our most important, valued and strategic suppliers: is a partner in our business. We have built our reputation on the Mac3 reputation of being a quality orientated and trusted supplier."
Kappanoszki Erika
NIVELCO
"The quality and customer service is prime, the service is fast, flexible and responsive."
Jadwiga Buchta
Metalchem
"MAC3 is for us very reliable supplier of float level switches."

What they say about us

We are honored to have been chosen by numerous major companies in the industry, who have recognized us as a valuable partner known for providing know-how and reliability. Our commitment is the supply of high-performance products specifically designed to simplify work processes. Thanks to our longstanding commitment to trust and reliability, we have successfully cultivated robust relationships with both our Italian and international clients.

Our Mission

At MAC3 we prioritize efficient management of electricity and water consumption through the use of control systems for levels and pressures and liquids (water).

We fulfil this commitment by actively pursuing sustainability, encouraging a culture of innovation, and promoting personal and professional growth for all stakeholders. We aim to provide exceptional service and quality in both tangible and intangible ways, as well as adopting positive relationships.

Our Vision

At Mac3, we understand that conducting business involves having a positive impact on the economy and society by cultivating a positive and supportive work environment where individuals can reach their full potential and establish relationships based on respect and trust.

We aim to create long-term value through transparency, a sense of responsibility, and a culture of innovation and action, all while meeting the needs of our stakeholders.

Our Values

In Mac3, there is a strong focus on customer and personal orientation, which are true strengths for individual and collective growth. Our production is characterized by innovation and active participation. Efficiency, professionalism, and commitment complete our set of values, along with transparency and fairness, within a work environment where ethics are at the core of everything. Furthermore, we pay constant attention to environmental respect, as evidenced by the assessment of the environmental impact of our processes and products.

Staff

At Mac3, we strive for evolved and precise performance that guarantees success for all.

We also invest our time and creativity in research, making us an experienced team with over 40 years of expertise in the field. Partnering with us ensures that you will have a dedicated team working alongside you at the highest level.

40 years of experience
in the industry since 1981

Innovative products
100% MADE IN ITALY

Tailored assistance
every step of the way

Process control
for quality products

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