Martin Engineering winds new class of robust, precast form vibrators

Cougar Concrete Form Vibrators utilize Class H windings and a rigid alloy frame to withstand maximum force output levels for longer sustained periods. The units’ external bolt patterns are compatible with conventional form brackets, creating a secure fit that allows the concrete to settle quickly for even distribution without air pockets.40 Cougariii 400

“Most concrete form vibrators have class F windings with a lower temperature rating,” says Martin Engineering Vibration Product Specialist David Ruggio. “Class H windings are able to withstand a higher internal temperature, allowing the units to run longer without having to be serviced or replaced as often.”

Housed in a totally enclosed, non-ventilated case, Cougar vibrators feature an electric rotary motor as large as 230-460 volts (3 phase/60 Hz), running at 3,450 rpm and producing as much as 3,000 lb. of force. They are rated for continuous duty at any setting—a performance feature attributable party to the class H windings, which are triple dipped and shock resistant, able to operate under sustained high internal temperatures.

Units feature oversized, greasable roller bearings contained in sealed ductile iron housings. Rated (International Protection Marking) IP 66 and (National Electrical Manufacturers Association) NEMA 4, the seals are compliant with standards in North America and Europe. Durable O-rings between the end caps and the housing retain the tight seal, even during pressure washing.


40 Cougari 400

The Cougar series offers robust models for a wide range of precast form vibration requirements, and include the transferrable mid-sized unit shown with bracket and handle. Class H windings equip the motors for continuous duty at maximum rpm.
40 Cougarii 400

“Large precast shapes put high demands on vibrators, due to the sheer size and weight of the forms required,” notes Ruggio. “In contrast, smaller operators can transfer a unit across many unique applications in a single day. The Cougar product line includes devices covering either of those specific needs.” 

Higher weight vibrators set on permanent brackets are supplied with grade 5 mounting bolts and compression washers to ensure a secure fit. Portable units engineered for projects that require the device to be swapped among multiple forms can weigh as little as 20 lb. The fully transferable mid-sized unit features a handle with a wedge in back that slides snugly into a V-shaped bracket specially designed to withstand heavy forces. The electric 115V, single-phase/60 Hz motor can be run as fast as 9,000 rpm, delivering 1,600 lb. of force. An optional speed control knob allows operators to fine tune the vibrator for each specific application, with eccentrics adjustable from 0-100 percent.

Designed and manufactured in Peru, Ill., every Cougar Concrete Form Vibrator goes through a two-tiered testing phase before final prep, and prior to shipping. This assures that the internal integrity and specified amplitude of each unit complies with the company’s tight tolerances. — Martin Engineering, Neponset, Ill., 800/544-2947;