Following on the heels of the highly successful LP6505 walk-behind duplex roller launched little over a year ago, Atlas Copco Construction Technique now introduces its “big brother”, 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. “Of course still fully hydraulic, both for vibration and traveling, but also with new attractively designed hoods. We are also using our new hydraulic oil cooler so that we can control temperature in hot working environments.”

“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 ever-popular LP6500 which dominated the market for twelve years,” states 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 same impressive features of the LP6505 have been incorporated into the LP7505. Under the flip-up hoods of these two hydraulic duplex rollers, performance and efficiency take centre stage. The LP7505 delivers an impressive 27.3kN centrifugal force per drum giving a total of 54.6kN which Stewart points out ensures high productivity for contractors.

The LP6505 and LP7505 are also no slouches when it comes to efficiency offering even more 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, water control. And we have the same low hand and arm vibration values as on the predecessor models,” comments 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; it reduces wear on components and increases the battery lifetime. Furthermore, polymer items such as seals and rubber retain their function which prevents the machine from leaking. Atlas Copco is currently the only manufacturer to deliver this type of hydraulic oil cooler.

Manual brakes have been replaced by new automatic hydraulic brakes in the drums which make 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.

Finally, from a service and maintenance point of view, the flip-up hoods of the LP6505 and 7505 duplex rollers ensure easier access to service points such as engine maintenance and battery charging. Stewart warns that the use of the wrong tool for the job can result in poor compaction and reduced equipment life. “We have a highly trained sales team to assist customers with selecting the correct products for their individual application needs.”

“Time is money for contractors. If the job can be done quicker with a reliable roller that costs less to maintain then contracts become more profitable. The LP7505 can deliver and along with the support offered by our network of service centres there is peace of mind for contractors and rental companies alike,” concludes Stewart.