In 2016, CAT dealer Finning approached VMAC with a special request, Finning’s request was the manufacturer to modify its 6-in-1 multifunction power system to use a CAT engine. VMAC’s power system included the following: rotary screw air compressor, generator, welder, battery booster/charger and PTO with optional hydraulic pump.
“The existing power system was already popular with Finning mechanics who used it to service heavy equipment for customers. However, Finning mechanics naturally are more familiar and comfortable with CAT engines and prefer those over competing engines,” said Mike Pettigrew, VMAC’s marketing manager. “That’s what led to this new request.”
Finning contacted VMAC with Caterpillar’s engineering team to begin the process. There was also an application review of the VMAC multifunction design to ensure that the CAT engine specifications were met. After the review was conducted, the CAT C1.1 Industrial Engine was determined to be the best match as it met with the product dimensional requirements and had an ultra-compact size.
Noise reduction was another consideration as the Finning team had shown interest in receiving a quieter product from VMAC. “From 21 feet, our traditional multifunction power system produces 81.2 dB at high idle and 76 dB at low idle,” Pettigrew explained. “In comparison, the newer system with the CAT C1.1 engine produces 74.25 dB at high idle and 69.75dB at low idle. Reducing noise by more than six decibels helps protect workers’ hearing and creates safer jobsites.”