Hammond Expanders is the world’s largest producer of pre-blended expanders for automotive and industrial lead-acid battery applications. Battery expanders are specialty organic chemical formulations that function at the negative plate of lead-acid batteries to extend battery life and improve cold-crank capability. For more than 70 years, Hammond has been involved in the development and production of expander products. This experience has allowed the company to develop the most extensive product line in t
he industry with over 80 formulations currently manufactured for various battery applications. Our expander products are currently manufactured in both Hammond, IN and Gateshead, UK.
Hammond Expanders find their primary use in lead-acid battery supplied to major automobile manufacturers throughout the world. In addition expander are used in the supply of the replacement SLO/engine starting sector of the battery market. Expander technology also finds application in industrial batteries where it offers extended life for rechargeable, no-emission power applications. Hammond Expanders additional market segments include standby power, valve-regulated power and hybrid/electric vehicles.
As the industry leader, our state-of-the-art research and development center is equipped with the latest in analytical test equipment including x-ray diffraction, Inductively coupled plasma, differential scanning calorimetry, and thermo gravimetric analysis as well as bitrode and Maccor testing equipment. In addition to R&D, Hammond’ reputation for providing technical support and customer service is respected throughout the battery industry. Our company has always focused the product development and technical support efforts on helping our customers to build a better battery.
