The VIBRO-MAC is a machine virtually unmatched in ability to manufacture vibrated dry cast products. VIBRO-MAC offers producers a versatile, high production system to make such products and shapes as eliptical, arch, round, pre-bed, jacking and PVC protective-lined pipe, box culverts and manhole products. Steel end ring, tongue and groove, profile gasket, confined O-ring, bevel and big bell R-4 pipe can also be produced on one or more of the machine's stations.

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Technical Service Tips

Quality

Quality is the hallmark of Besser machinery. Highly skilled staff at Besser in Sioux City, Iowa, follow stringent quality guidelines during the design, manufacture, assembly and testing of the equipment. All Besser equipment is manufactured with precision machinery, ensuring consistent quality. This attention to detail translates into a versatile, time-tested dry cast machine with a reputation built on years of service and reliability.

Durability is an equally important reason for the outstanding productivity of the VIBRO-MAC. The isolation base frame and conveyor support column are designed to be part of the machine foundation, adding rigidity and stability. VIBRO-MAC form sets are of rugged, heavy-duty construction to ensure accuracy in manufacturing and a long service life.

VIBRO-MAC offers the ultimate in dry cast flexibility. Machines may be installed in a new or existing building, at floor level or in a pit. Models are offered for maximum product diameters of 120" (3000 mm), 144" (3600 mm) and 156" (4000 mm) and are available for 8’ (2.5 m), 12’ (3.5 m) and 16’ (5 m) product lengths. Machines can be configured for  multi-station operation and different shapes or sizes can be made alternately. Attachments may be either core strip or form strip, with either electric or hydraulic vibration.

Features

Holding Hopper

Material is fed into a holding hopper fabricated with rounded corners to reduce sticking or bridging of concrete. The hopper is equipped with an adjustable feed gate on the front and a clean-out gate in the rear.

Conveyor Assembly

Concrete travels to the distribution head on a reversible contoured troughing conveyor belt designed to efficiently transport more material with less loss.

The stainless steel material distribution chute, which rotates in either direction, ensures a free flow of material directly into the form set. Spillage is reduced, as is cleaning and maintenance time. The tracking roller on the end of the chute follows any contour or shape of product for exact placement of concrete.

Cap positioner assemblies hydraulically press the top header ring into the concrete for maximum compaction of the spigot, eliminating the need for a special presshead assembly in each size. Assemblies are mounted on the form for core strip, or in the core for form strip.

VIBRO-MAC forms are suspended off  of the floor by centering and isolation mechanisms. Vibration is isolated and all the energy is retained in the form set. Forms are self centering in the isolators, and each isolator has a quick-change feature.

Hydraulic core strip lift cylinders on each station assist the bridge crane when removing the core and pipe from the form by helping overcome the friction bond between the product and the form. This reduces bridge crane requirements.

Pneumatically-actuated retractable feet on the core lock underneath the pallet to carry the pallet and reinforcing cage to the machine. The feet also support the finished pipe and joint ring set as they are transported to the curing area.

One floor-mounted pedestal-type jib crane is supplied per station for placing headers into forms.

Energy-efficient rotary electric vibrators incorporate roller bearings with close-clearance retainers to offer exceptional loadbearing characteristics and extended lube intervals for low maintenance and long life. Adjustable eccentric weights allow force adjustment from zero to maximum for precise vibration control.

Computerized Tracking System

An optional computerized tracking system provides automatic distribution chute and conveyor tracking for feeding various round and non-round pipe and box culvert profiles.