Building the future is a collective endeavor, a journey that requires vision and courage. By embracing the potential for something better, taking calculated risks and learning from experience, a future product can be built that is both meaningful and impactful.
With a strong network of more than 100 dealer branches across the U.S., Cimline maintains a direct connection to the end users every day. These dealers are more than distribution points; they are essential partners in support, service and product feedback. Acting as the eyes and ears in the field, dealers help Cimline understand the evolving needs of those performing the demanding work of pavement maintenance. That feedback laid the foundation for the redesigned Cimline M4™ 410-gallon crack seal melter. Cimline brought together a team of dealers and high-usage end users to inform every phase of the project. By prioritizing input from those who rely on these machines daily, the M4™ development effort was grounded in real-world experience. The goal was simple: deliver a machine that is more robust, more intuitive and more efficient, ultimately saving time and money on every job.
Key components for this redesign included better agitation with a full agitator sweep; an oil-filled central heating tower which allows material to heat up faster; a combustion chamber box with a new angle so heat reaches the material pumps faster; pumps that are outside of the tank, allowing for easier access and faster repairs; material recirculation which is constant through the plumbing, ensuring material stays up to temperature; an optional hydraulic conveyor with a 100 amp alternator, which doesn’t draw power away from the material pumps or agitators; dual generators that ensure there is enough power for all running parts and options on the machine; and a re-designed cylindrical material vat, which helps to ensure material doesn’t get stuck in the tank.
Once everyone agreed upon the final requirements, engineering worked on drawings of each component, making sure the new items would be functional, cost-effective and aesthetically pleasing. The project then moved into the manufacturing phase.
Manufacturing involves a variety of steps and processes to get to a finished product. Piece by piece, parts start to gather from the raw steel processing portion of the plant. While the pieces gather, the structural tube welded steel frame is designed for strength, stability and long life, setting the new M4™ apart from the competition.
The new 410-gallon cylindrical tank is engineered for durability and efficiency. The tank has the highest heat transfer rate in the industry, making the material put into it melt the fastest. The finished tank weldment is designed to bolt on and off the trailer frame.
No part goes unprotected prior to assembly. Each piece goes through the in-house paint booth, giving it the signature black and/or green color, followed by a clear protective coating to give it a nice shine. The components continue to come together in the assembly process which begins as the trailer frame sealant tank, fluid tanks and rear cabinet are installed. As the manufacturing process nears completion, options are added. Some of those include: a plastic engine cover, dual wands, an on-board toolbox and a fire extinguisher. All Cimline’s M-Series™ options are designed to bolt-on both new machine builds and field units to allow customizable performance.
Finally, the M4™ prepares to roll out the door. All decals are installed on the machine and the operating manual is placed in the special document storage container. Every Cimline melter undergoes quality checks throughout production and a full run up prior to shipping. Quality checks include everything from tightening bolts to checking electrical wiring connections and the various gauges to strapping down hoses and anything that could come loose during shipping.
This machine was introduced and showcased at the World of Asphalt Show in St. Louis, MO in March 2025. There was a lot of buzz generated by the media and the attendees. After the show, the machine went to a dealership for field testing, to ensure it meets the demands of today’s asphalt repair contractors who were involved in the original design phase. Field testing involves demonstrating the machine at various dealerships and with end contractors using the machine, ensuring the quality and ease of use. Training materials are also created or updated based on feedback from the demos, the dealerships and the contractors. Many training videos and user manuals are also translated into other languages, ensuring usability by just about anyone tasked with operating an M4™.
Training is another key pillar of the Cimline success in connecting with people and users. Cimline Academy, launched in 2020, continues to provide comprehensive instruction for dealers and end users alike. Sales professionals are trained in customer engagement and live demonstrations, while service technicians receive detailed guidance on evaluation, troubleshooting, repair and operation. Training includes in-person sessions, hands-on practice, and both physical and digital resources to support ongoing education.
Cimline takes great pride in all the machines it designs and manufactures. All Cimline crack seal machines, routers, mastic melters, longitudinal joint sealers and emulsion kettles are proudly manufactured and/or assembled in Plymouth, MN.
For more information, please visit www.cimline.com or call 877-841-0848.
