
Chem-Pak Inc. is a full-service aerosol, liquid, and specialty packaging partner that has supported brands across North America since 1966.
Chem-Pak depends on equipment that can run reliably, adapt to changing packaging requirements, and support long-term customer demand. That need for dependable, serviceable automation is what has made Haumiller Engineering a trusted partner for decades.
“With Haumiller, you know you're getting the highest quality aerosol machinery on the market. It works the same, you know, day one as it does 10 years later.”
– Mike Duane, VP & General Manager of Chem-Pak
For Chem-Pak, equipment must keep up with changing product formats, actuator designs, and customer requirements without sacrificing uptime, operator safety, or finished product quality.
An out-of-spec can height, combined with the unique design of the trigger actuator, created several application challenges. The trigger needed to be applied securely, but without too much force, as this could damage the trigger during application. Haumiller needed to find a way to make the application run efficiently while protecting the integrity, appearance, and performance of the actuator.
Why actuator design matters in aerosol automation? Trigger actuators must be applied with enough force to sit properly without damaging the plastic component or affecting the finished package.

Chem-Pak’s experience with Haumiller gave them confidence to return when they needed a new machine. Haumiller supplied a custom capper with modern safety and operator-focused features, including door interlocks, tunnel guarding, pinch point protection, HMI controls, can tracking, fault visibility, and machine stop data. These updates gave Chem-Pak added safety and production visibility while maintaining the reliability they had come to expect from Haumiller equipment.
For this application, Haumiller developed a custom modification to its 4400 12-pocket capper, allowing Chem-Pak to run a unique product with a tall can and unique trigger actuator on a proven machine platform. The result allowed Chem-Pak to run an application that originally sat outside typical equipment parameters.
“To us, reliability and uptime is one of the most important things that we have on the floor. And so having our operators who can set up the machines, we can run it, and we can count on it being there for us day in and day out is really invaluable.”
– Mike Duane, VP & General Manager of Chem-Pak
To make the application work well, Haumiller worked closely with the cap designer to provide feedback on how the component would move through the machine and where force could be applied safely.
Haumiller successfully applied its Design for Assembly services, which drastically reduced project risk.
From there, Haumiller modified the standard 4400 capper design to accommodate the added height of both the can and actuator. The goal was not simply to make the component fit. The machine needed to apply the actuator consistently, avoid damage, and maintain proper performance in a production environment.

The project delivered value on multiple levels, from the specific actuator application to the broader long-term partnership between Chem-Pak and Haumiller.
Protected product quality
The modified 4400 capper allowed Chem-Pak to apply the trigger actuator without compromising the integrity of the component. By reducing the risk of actuator damage during application, the system helped protect the finished product before it reached the end user.
Extended equipment value
Haumiller continues to support Chem-Pak’s Lasta Tipper, which helps extend the value of legacy equipment that is still running efficiently in production. With proper maintenance provided by Chem-Pak, along with ongoing change part and part maintenance support from Haumiller, the machine remains a reliable part of the production environment decades after its original installation.
“We trust that the Haumiller machine, when it arrives, is going to work just the way that we discussed– and it does. And I think on Haumiller’s end, they know that we do our homework to make sure that we're giving them all the details they need to design a machine that's going to work for us.”
– Mike Duane, VP & General Manager of Chem-Pak

Have an aerosol packaging application that falls outside standard equipment specs? Haumiller designs, modifies, and supports automation systems built around real production challenges. Contact our team to discuss your next application.