InfraStructures - November 2006 - BOMAG Upgrades Recycler/Stabilizer Models

BOMAG Upgrades Recycler/Stabilizer Models

BOMAG has improved key drive-train components on its 2 m rotor width asphalt recycler/soil stabilizers.

Both the MPH362-2 and MPH364-2 have been repowered with a 360 hp Cummins QSM11 Tier 3 Stage III EPA certified engine.

Other improvements include the use of a double reduction planetary rear drive system, which is propelled by a pair of axial piston, variable displacement motors. The drive system on previous models used a ring and pinion differential assembly.

The MPH362-2 is a rear-wheel drive machine, while the MPH364-2 boasts four-wheel drive to enhance performance on severe grades or in difficult traction conditions. An Automatic Power Adjustment System (APA) automatically adjusts forward travel speeds to match the application and material being processed.

Both models are available with one of three rotor configurations:

An asphalt recycler rotor designed to cut, pulverize and mix old and deteriorated asphalt pavement for reuse as road base material. The pulverized material may be mixed with a binding agent or additional granular material for improved road base performance. Maximum cutting depth is 30 cm.

A soil stabilizer rotor designed to mix lime, cement, fly ash, bituminous asphalt or other materials with soil in order to improve its compactability and load-bearing capacity. Maximum mixing depth is 35 cm with the stabilizer rotor.

For stabilization applications that require working at greater depths, a deep mix stabilizer is available with a maximum rotor cutting depth of 53 cm.

Each rotor - recycling or stabilizing - is 2 m wide and offers rotor speeds of 135 and 150 r/min. The recycler rotor features 168 bullet-shaped cutting teeth, while the stabilizer rotor offers 70 paddle-shaped teeth. The teeth are strategically positioned for uniform material pulverizing, sizing and mixing with minimum vibration and shock load to the rotor and drive components. A simple cutting tooth replacement process has an easy tap-in/tap-out design.

A unique hydrostatic relief system regulates shock absorption and eliminates the need for shear pins and other torque limiting devices in the rotor drive. This system reduces the possibility of damage to the equipment, minimizing downtime.

Source: BOMAG Canada