Advancing forward in excellence and innovation.

S2 Manufacturing proudly serves as the parent manufacturer and worldwide distributor of Aljon™, Ing. Bonfiglioli®, and Vammas—industry leading brands that provide heavy equipment to scrap metal recycling, waste management, and airport maintenance equipment industries.

Leading the industry in durable, powerful scrap equipment and landfill compactors.
Specializing in recycling and processing metal scrap, Bonfiglioli is known for simplicity and performance.

Delivering 40+ years of reliability helping remove snow from airport runways and taxiways.

Since 1963, Aljon has been the go-to manufacturer for their scrap equipment and solid waste compactors serving scrap metal yards, auto salvage recycle yards, and landfills. Aljon’s commitment to excellence has made them leaders in the industry.

Since 1963, Al-jon has been the go-to manufacturer for their scrap equipment and solid waste compactors serving scrap metal yards, auto salvage recycle yards, and landfills. Al-jon’s commitment to excellence has made them leaders in the industry.

Recognized in five continents as offering the best in price and quality mobile equipment for recycling and processing of metal scrap. Their “computer-less” simplicity and high-strength steel has elevated them to be a trusted brand worldwide.

Vammas has served airports since 1982 by providing powerful and reliable snow removal equipment vehicles. Their revolutionary vehicles clear runways within predictable timelines, resulting in high return-on-invesment for airports.

S2 Manufacturing operates under the robust financial umbrella of Equivu Capital, LLC, a partnership that solidifies our operations and empowers our plans for growth.

This ownership group provides S2 Manufacturing with financial stability and strategic guidance, allowing us to fortify our pathway toward achieving long-term goals. As a result, S2 Manufacturing is able to thrive, innovate, and evolve our brands effectively. Together, we are committed to building S2’s brand assets and positively impacting the needs of our staff or customers.

Meet our High-performance Leadership Team

Our priority is to maintain the highest level of excellence in all that we do, from ensuring every bolt is installed correctly to delivering unmatched customer service.
David H. Bradford
President & COO

David is responsible for the overall company’s performance and strategic vision

Tom Irwin
General Manager

Tom is responsible for increasing production capacity and facilitating company growth.

Operations Manager

Steve’s passion is conceptualization, design, manufacturing, and customer support.

Curt Spry
Scrap Sales Manager

Curt is responsible for the Midwest Territory and management of the entire Scrap Sales Team.

Greg Shockley
Solid Waste Sales Manager

Greg is responsible for managing sales for the Solid Waste division.

Jason Mills
Service Manager

Jason oversees all field service activities, new equipment deliveries, and service training.

Enza Lobberecht
Supply Chain Manager

Enza is responsible for leading the Supply Chain Team.

Kevin Johnstone
Parts Manager
Kevin currently oversees all aspects of the parts department.
Amber Beal
Accounting Manager

Amber is responsible for overseeing the day-to-day accounting operations.

Greg Martin
HR Manager

Greg is responsible for the full HR lifecycle and managing employee-related issues.

Lisa Gioacchini
Director, Financial Planning, & Analysis

Lisa is responsible for financial reporting, budgeting/forecasting, pricing, and various analyses.

Contact Us

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David H. Bradford
President & Chief Operating Officer
Biography

David is an experienced operations and people leader. As President of S2 Manufacturing, he is responsible for the overall company’s performance and strategic vision. He is a relationship driven individual that feels accountable not only to the company’s stakeholders, but also to the customers and employees that each business serves. David has previous experience working at John Deere for 22 years and 2.5 years Amazon, both with increasing roles of responsibility. Through these experiences, David has been associated with heavy equipment manufacturing and customer driven solution systems.

David holds both a BS and MS Degree in Mechanical Engineering from Kansas State University, Manhattan, Kansas.

Tom Irwin
General Manager
Biography

Tom has been in the manufacturing industry for 14 years. He began his career at Aljon working in the engineering department focused mainly on landfill compactor design.  Tom has held various positions while at S2 Manufacturing, most recently being promoted to General Manager in 2022.  In his current role, he is focused on increasing production capacity and facilitating company growth while building employee and customer satisfaction.​

Tom holds a BS Degree in Mechanical Engineering from Iowa State University. He enjoys spending time with his wife and three children on their small family farm.​

Steve Van Zee
Engineering and Operations Manager
Biography

Steve’s passion is making things, including conceptualization, design, manufacturing, and customer support. He has 30 years of experience in engineering and manufacturing in Central Iowa working for Vermeer Corp., Pella Corp., and Waard Metals. Steve has his degree in mechanical engineering from Dordt University in Northwest Iowa.

In his time outside of work, he enjoys being with family, outdoor activities, and doing home improvement projects. He appreciates being part of the S2 team working to grow the business and help meet the needs of their customers.

Curt Spry
Sales Manager - Scrap Division
Biography

Curt is a 34 -year veteran in the scrap industry, 30 years with Aljon. Curt started as a sales representative covering the Midwest territory. In 2005 Curt was promoted to Sales Manager for the scrap equipment product line. Today, Curt is responsible for the Midwest territory as well as his role as Scrap Sales Manager working with the sales, service and manufacturing teams to supply the scrap market with quality scrap processing equipment.

Curt is dedicated to his job and family, wife Michelle, daughter Sydney and two sons Bennett and Cooper. Curt enjoys spending time on the golf course with family and friends and attending sporting events.

Greg Shockley
Division Sales & Product Manager – Solid Waste Division
Biography

Greg is a heavy equipment professional with 32 years of industry experience in sales, service and dealer development. As Division Sales & Product Manager, he is responsible for all Sales activities related to the solid waste division. He works with engineering on current and future developments of the of Aljon compactor product line, as well as recruiting and the development of aftersales dealer partners. Having ample experience at both the OEM and dealer level, Greg has developed a passion for serving customers as a total solutions provider. Greg is married with 11 grandchildren.

Jason Mills
Service Manager
Biography

Jason is a results driven leader who has been with Aljon for over 26 years. He started his career in the paint department in 1997 and was later promoted to Service Technician in 2006. In 2014, he was promoted to Scrap Product Manager where he managed all aspects of the scrap product line and worked to implement significate improvements to the products. In the fall of 2019, Jason was promoted to Customer Service Manager. In his current role, he is responsible for overseeing all field service activities, new equipment deliveries, and service training. Jason has a passion for delivering world class customer service to all our Aljon customers.

Jason holds a BA Degree in English Literature from Buena Vista University. He enjoys spending time with family and friends and will occasionally take a ride on his trophy winning 2002 Harley Davidson motorcycle.

Enza Lobberecht
Supply Chain Manager
Biography

A determined discipline and responsible leader, Enza Lobberecht’s role as Supply Chain Manager has her leading the Supply Chain Team in these very tough and difficult supply chain times. Enza’s knowledge of the manufacturing industry and sourcing parts has been an asset to our company. She brings over 25 years of experience in supply chain management, including automation, lighting, and heavy machinery.

Enza holds a bachelor’s degree in business science from DeVry University in Chicago, Illinois

Kevin Johnstone
Parts Manager
Biography

Kevin started his career with Aljon in 1998 working on the landfill compactor product line. He was promoted to Landfill Compactor Supervisor in 2004. In this role, Kevin was responsible for leading the assembly team and ensuring that the machines were built to the highest quality standards possible. In 2017, Kevin joined the parts department, as he had a desire to work closely with our Aljon customers. Kevin currently serves as the Parts Manager where he oversees all aspects of the parts department. Kevin prides himself on delivering the highest level of customer satisfaction possible. He and his team are responsible for maintaining service parts inventory, elevating customer satisfaction, and ensuring customer equipment is up and running.

Kevin is married and enjoys spending time with family, friends, and the great outdoors.

Amber Beal
Accounting Manager
Biography

Amber has been with S2 Manufacturing for 2 years and has worked in all areas of accounting before moving into her current role. Amber brings a diversified perspective to the team with her background in accounting and software development and is responsible for overseeing the day-to-day accounting operations.

Amber is married with two sons and enjoys spending time outdoors on their family farm.

Greg Martin
Human Resources Manager
Biography

An accomplished professional, Greg Martin’s role as Human Resources Manager has him managing the full HR lifecycle, while influencing key stakeholders, engaging employees, resolving complex issues, and efficiently managing talent and organizational design. Greg has over thirty years of human resources, operations and management experience in retail and manufacturing. Greg is a graduate of Northern Illinois University.

Lisa Gioacchini
Director, Financial Planning, & Analysis
Biography

Lisa has been with S2 Manufacturing for 2 years and is responsible for financial reporting, budgeting/forecasting, pricing, and various analyses. She is a finance professional with over 30 years of experience in a variety of industries, including manufacturing, high-tech, and airline services. Lisa has a BS degree in Business Management from Southern New Hampshire University.

Lisa is married and has two sons. In her free time, she enjoys the beach, traveling, skiing, and spending time with family and friends; especially visiting with her young granddaughter.