Neponset, IL – The global pioneer in industrial vibration technology has introduced a portable brushless precast concrete vibrator that outlasts competitors.

With a commitment to innovation, Martin Engineering worked closely with customers to design the MHF-1500 Brushless Concrete Form Vibrator. Precast concrete contractors and manufacturers requested a longer lasting vibrator with versatility and dependability. Observing the needs of the modern precast industry, along with months of designing and testing, resulted in a powerful vibrator that is simple to service in-house and portable with a longer equipment life.

“Traditionally, this type of motor is universal AC with internal brushes like a DC brushed motor,” explained Travis Miller, Global Engineering Manager of Flow Aids at Martin Engineering. “Those create heat if used on any high-duty cycle application that drives them to failure. By going AC to AC, we can eliminate the brushes and reduce the heat build-up.”

Brushless Vibration Technology 

The external VFD/Inverter converts the single-phase 110-120V 60Hz power to 3-phase 230V, 100Hz power in the electric rotary motor which runs at 6000 rpm producing 1500 pounds (680 kg) of force. This allows for a brushless environment where magnetic fields rotate in space for the rotor to follow, drastically lowering heat output which reduces wear and tear on internal components and extends the motor’s operating life.

The whole unit is sealed in a totally enclosed, non-ventilated (TENV) aluminum housing rated International Protection Marking (IP) 66 and National Electrical Manufacturers Association (NEMA) 4 with seals that comply with North American and EU standards. Durable O-rings between the end caps and the housing retain the tight seal, even during pressure washing.

The casing can be opened for easy maintenance in-house. By removing the weight covers, operators can adjust the vibratory unbalance to the required force needed for the application. Each MHF-1500 features oversized and permanently lubricated roller bearings contained in sealed ductile iron housings, adding to the long life of the unit.

Shop to Site Versatility 

“The sheer size and weight of some precast forms can be demanding on vibrators, so a powerful and consistent performance is key,” Miller pointed out. “In our research, we found that the difference in power needs between the construction site and the shop were largely the same.”

Although some operators had static forms that they used consistently, others preferred having a unit that they could transfer from one application to another. That’s why Martin Engineers designed an optional ductile iron wedge and a sturdy curved handle for easy portability and versatility.

Precast Concrete Dependability 

At the Martin’s Center for Innovation in Neponset, Illinois, every MHF-1500 vibrator goes through a two-tiered testing phase before final prep, as well as prior to shipping. This assures that the internal integrity and specified amplitude of each unit comply with the company’s tight tolerances. With over 75 years of experience setting the standard for industrial vibration, Martin Engineering retains a reputation for heavy-duty designs, personalized service, ready availability of parts and short turnaround on repairs.

“We listen to customers and design units to meet their needs,” Miller concluded. “Our philosophy is that, if we create the longest-lasting and most reliable product, the dividends will come in the form of customer loyalty.”

Visit Martin Engineering’s booth #N450 at World of Concrete 2024 on January 22-25 at the Las Vegas Convention Center. The booth is outside of the Cement Production Pavilion in the North Hall. Along with experiencing the MHF-1500 in person, there will be other products essential to the concrete industry featured, as well as experts on hand to answer questions.