Following the successful launch of the LP6505 walk-behind duplex roller over a year ago, Atlas Copco Construction Technique has now introduced a bigger model, the LP7505.
“After a decade of success with our fully hydraulic duplex roller LP6500, we updated it to the LP6505, and now the LP7505,” says Kjell Helgesson, product & application specialist, Light Compaction at Atlas Copco.
“Since we sold the first LP6506 to the southern African market in September 2015, the unit has proved itself, building on the legacy of its predecessor, the popular LP6500 which dominated the market for 12 years,” says Neville Stewart, business line manager, Atlas Copco Construction Tools Division. “While there is already an established market for 750 drum rollers, the larger LP7505 is exactly what the market has been looking forward to; a fully hydraulic model that offers superior compaction capacity, a popular choice where there are demanding jobs but where the contractor does not want a ride-on roller. Moreover, the larger machine delivers better centrifugal force and the wider drum allows the unit to cover more ground. This means less passes and more time saved.”
All the features of the LP6505 have been incorporated into the LP7505. The LP7505 delivers 27,3 kN centrifugal force per drum, giving a total of 54,6 kN. The LP6505 and LP7505 also feature a number of new user-friendly features. The controls are conveniently situated where they can be easily reached by the operator. “The operator has easy access to throttle control, electrical starting box and water control. We have the same low hand and arm vibration values as on the predecessor models,” says Helgesson. A reduction in vibration reduces operator fatigue which makes for both a safer and more productive working environment.
Both machines have been fitted with new scrapers. Stewart explains that these more open scrapers reduce the risk of material getting stuck between the scraper and the roller and adhering to the drums which causes drag and ultimately slows down compaction.
The roller features a built-in hydraulic oil cooler which allows the machine to stay cooler for longer in hot working environments. Keeping the oil temperature down and the machine cool improves productivity and prolongs the life of parts which in turn delivers numerous time and cost saving benefits. Furthermore, polymer items such as seals and rubber retain their function. This prevents the machine from leaking. Atlas Copco claims to be the only manufacturer currently offering this type of hydraulic oil cooler.
Manual brakes have been replaced by new automatic hydraulic brakes in the drums which makes it easy to control. When the pressure goes down the roller brakes automatically and the brakes are released when pressure goes up. The location of the crank in the front of the roller eliminates the need for removing the roller from the trench when restarting after a break.
