Contact Us


Michael Schaefer

Vice President of Operations

Mike@sicrankshaft.com

Michael‘s hands on method of business management has shown in the growth and productivity of the business in its day to day operations. He is dedicated to providing his machinist with the modern technology and training. This investment ensures product superiority and results in customer satisfaction.

Michael served on the Board of Directors for Engine Rebuilders Associations, AERA, from 1995-2005; he has also served as a test writer of the ASE certification. He is very involved in his community and is an active member of his church congregation.  Michael has volunteered his time as a treasurer for the Red Bud Fire Department for 21 years.. While he enjoys traveling, Michael is also a Harley Davidson motorcyclist and scuba diver.

Jeremy Schaefer

Production Manager

Jeremy@sicrankshaft.com

Jeremy oversees our manufacturing personnel and machinery to achieve the precision and quality our clients expect. He is a well-seasoned, experienced machinist who has been well trained in all aspects of the equipment utilized by our shop. Jeremy is our top CNC programmer, and while working with SURFCAM, he programs our CNC machining centers.

Outside of work, Jeremy is an avid outdoorsman with hobbies including hunting, fishing and camping. He is married with three children, participates as a Cub Scout den leader and assists on coaching his children's sports teams.


Glenn Linnertz

Shop Manager

Glenn@sicrankshaft.com

With his warehouse management experience, Glenn is committed to promoting an environment that accentuates quality and customer service. Glenn maintains direct relationships with clients and promptly portrays all needs and concerns to the shops machinists. He works in the most efficient ways to make sure that all of the operations of the shop perform to the best of its capabilities.  Glenn is involved in his community, currently serving as a City Alderman for the City of Red Bud and has for 9 years.

Glenn is married and while in his spare time, he enjoys hunting, fishing and spending time with his grandchildren.




Lisa Koester

Purchasing Manager

Lisa@sicrankshaft.com

Lisa brings experience and personal skills to her position as a point of contact to each customer. She is responsible for ensuring a timely and accurate purchase of materials and supplies for the office and shop to make sure every order is done precisely. Lisa has been known to find the best price for freight and she is dedicated to making sure every client receives the best customer service.

Lisa is married and has two children, on the weekends her family enjoys camping, boating, fishing, horseback riding together and working in the yard.  She enjoys volunteering her time at her local church, her children's schools and her children's sports teams.


Sarah Schaefer

Accounting Manager

Sarah@sicrankshaft.com

Sarah exceeds in helping each client with all questions about billing and she is committed to guaranteeing accuracy. Sarah also conducts business with our vendors and merchants to make sure all payments are received in a timely and agreeable manner. While working with client accounts, Sarah also takes on the responsibility of our in house information tech for all our machinery and office computers.

Sarah is married has three young children,in which she loves to spend time with.  She participates in Cub Scouts as the Popcorn Kernel and volunteers her time at the local school helping the teachers in the classroom.  In her spare time she enjoys hunting, fishing and camping with her family.