A new paver, developed in Latin America, is said to be able to cope with harsh operating conditions and materials. The new JL900 model from LOCKS has been designed specifically to handle aggressive RCC or base materials paving duties.
Unlike conventional asphalt pavers, for which the bitumen acts as a lubricant, the JL900 is designed from the start to cope with these more aggressive applications. The screed features thicker and harder smoothing plates as well as a structure designed for the heavy-duty application. The screed benefits from a proprietary vibratory system which has a specific amplitude and frequency for compacting RCC or base materials. The tamper has a greater amplitude than on conventional asphalt pavers, which is said to ensure efficient pre-compaction.
Instead of using a chain-type material transport system, the LOCKS paver benefits from the fitting of a conveyor, said to deliver a constant and smooth flow. This is claimed to allow a more constant delivery of material than chain systems, while also reducing mechanical wear and boosting productivity.
Material finish is said to be high due to the weight of the screed and its heavy-duty construction. This is further assisted by the efficient vibration system and the high-amplitude tamper design. According to the firm, pre-compaction of up to 70% is claimed, varying according to particle size, moisture, and thickness.
The JL900 weighs 19tonnes, has a hopper capacity of 16tonnes and is said to be able to deliver up to 900tonnes/hour. Power comes from a Cummins QSB 4.5 diesel rated at 145kW and the machine also features Linde hydraulic components and electrics from Siemens.
