LYM de Mexico, worldwide manufacturer and distributor of MESABI flexible core heat exchangers for all heavy-duty equipment. Manufacturing facilities in Mexico.

Individual Cooling Tubes held in Header Plates
with Rubber Seals that absorb stresses and thermal shock.

Seals allow damaged tubes to be removed and replaced in the
field, often without removing the heat exchanger from equipment.

With optional V-tube core (shown), tubes are arranged to create
open passages so dirt and debris can blow through core.

Mesabi Products

Steps to remove and replace tubes shown are for engine radiators. Other MESABI® products dismantle and reassemble in similar fashion. Entire procedure for replacing or cleaning tubes can be done by regular maintenance personnel without special skills, using only a simple hand tool and often without removing the heat exchanger from the equipment.


LYM de Mexico designs heat exchangers in all shapes, sizes and capacities for cooling water, oil or air. LYM engineers work directly with customers, OEMs, engine manufacturers and fan suppliers to build in MESABI® reliability. This includes working with OEMs in their plants and in the field to verify performance requirements.		Limited space for engine and oil cooling. “V-Pack” heat exchanger package. This frac truck powered by a 16V4000 Detroit Diesel rated at 3,000 horsepower had limited deck space. L&M engineers combined both engine and oil cooling in a common framework and fan – or “V-Pack”. The radiator forms one half of a “V”-shaped frame and the oil cooler the other half. Both share a horizontal fan at the top of the “V” which pulls air through the “V” and exhausts it upward and away from people and equipment.	Radiator external plugging. Relocate radiator to canopy. Komatsu® crawler tractor working in northern Alberta, Canada, oil sands was experiencing constant external plugging from oil and water-saturated sand. L&M engineers relocated radiator to top of canopy and placed a hydraulically-driven fan below the radiator to drive air upward and through the radiator. This design has also been used in equipment operating in landfills where radiators experience regular plugging from plastic and paper debris.