Compact by Design, Tough by Nature: HDI™ Air Pak™ in Action

Abrasive conditions at high-output sand mine push equipment to the limit

As a full-service John Deere equipment dealership in the Southeast, Dobbs Equipment is the go-to service partner responsible for keeping its customers’ heavy-duty equipment running smoothly, even in the toughest conditions.

With limited tooling, American Materials Company (AMC), a high-output sand mine, is yet another business that relies on Dobbs to keep its mobile fleet up and running, which includes a lineup of several John Deere front loaders. Active since the late 1970s, AMC produces up to 3,000 tons of sand a day — which is enough to fill 200 school buses — and supplies topsoil, fill, concrete and mason sand for their customers in the Eastern Carolinas. Dobbs’ ability to respond quickly, often same-day or next-day, is essential to ensure plant throughput and keep the mine running at full capacity. Any delay in equipment repair can halt production, disrupt delivery schedules and impact AMC’s ability to meet customer demand within the given timeline.

But with abrasive conditions and constant wear on loaders’ pins and bushings, Dobbs was looking for ways beyond their skilled team of technicians to conquer tight turnaround times. That's where the HDI Air Pak comes in.

AMC requires responsive field support with advanced and efficient equipment

Dobbs’ technicians face more than just tough repairs at AMC’s sand mine. When they go to work every day, they are at battle with their environment, one that grinds down both their equipment and productivity. Sand infiltrates every crack and crevice and clogs up greasing systems, making frequent repairs to the John Deere loaders unavoidable. Just clearing a workspace of all the excess sand can take up to 30 minutes, which creates an obstacle for timely repair. That’s why having a consistent, endless air supply is crucial to remove debris from the equipment so repairs can be made. On top of this, service technicians face tooling limitations and constant pressure to minimize their downtime on the jobsite. Every minute lost to equipment failure or inefficient setup puts AMC’s production and customer commitments at risk.

To stay ahead, Dobbs’ technicians need to be responsive and equipped with a solution that is as tough and dependable as they are — built to perform in the harshest conditions and keep operations moving without delay.

HDI Air Pak’s all-in-one performance conquers extreme jobsite demands

Repairs in the mines mean hauling around multiple machines to get the job done: one for welding, another for compressed air and a third for power. The HDI Air Pak significantly simplified Dobbs’ operations. Its hydraulically driven, all-in-one design eliminates the need for separate compressors and welders, saving up to 400 pounds in weight on the work truck and reducing the equipment footprint by 54%. In addition, less gear means more valuable truck space to accommodate other essential tools and parts needed to complete tasks more easily. This results in fewer trips, faster setups and more efficient repairs, even in extreme weather.

Because of the constant sand exposure at the mine, weather resilience is key, and the HDI Air Pak is built for environments just like it. Its integrated and compact design is ideal for extreme environments — heat and cold, as well as remote and rugged environments. Designed with industry-leading technologies and weld quality, its reliability across harsh conditions ensures Dobbs can perform repairs without delay.

What really impressed Dobbs was the all-in-one performance the HDI Air Pak offers. Up to 325 amps of multiprocess welding power — including MIG, TIG, stick and air carbon arc gouging — at a 100% duty cycle, plus 40 or 60 cfm of air for uninterrupted tool use, meant fewer machines and more capability. Add 150 amps for battery charging, 300 amps for crank assist, and a 7,000-watt generator for auxiliary power, and Dobbs’ technicians can handle electrical issues on-site without delay, no extra equipment required.

“Being able to keep the truck running all day without worrying about running out of fuel in a standalone air compressor or generator makes all the difference in the world — endless air supply, constant use — it’s wonderful,” said Justin, a Dobbs service technician. “The HDI Air Pak unit is immediate, it’s consistent, there’s no delay and it performs well under many conditions. Overall, it provides a better end result.”

Simplified operation was another standout. A single digital panel controls all functions, reducing training time and setup complexity — especially helpful for newer techs. And with Auto-Set™ technology, Dobbs can count on consistent weld quality with fewer errors. Features like toolless maintenance and CAN bus connectivity also streamline service and fleet tracking, helping technicians stay efficient and reducing downtime across the board.

When considering safety, modular remote panels help reduce slip and fall risks by eliminating the need to climb into truck beds. This not only protects technicians but also helps maintain productivity by preventing avoidable injuries.

Experience the difference between falling behind and powering ahead

For Dobbs, it’s not just about fixing equipment; it’s about delivering uptime, every time. The efficiency of the HDI Air Pak has proven to be the ideal solution to amplify the Dobbs team’s need to provide AMC with fast, effective delivery and service. The all-in-one design has transformed field operations, equipping their technicians with a reliable machine that performs under the toughest circumstances. As a result, AMC benefits from reduced downtime, improved safety and a streamlined maintenance process that creates a more resilient operation. Together, Dobbs and the HDI Air Pak are helping AMC meet rising customer demand without compromise.