Caterpillar Paving is introducing its AP1000E and AP1055E pavers, which replaced the earlier D-Series machines. The machines are said to be able to place smooth mats and deliver high-production as well as redirecting fumes away from operators. The AP1000E is a wheeled model while the AP1055E is the tracked version of the same basic machine. Productivity is provided in part through the heavy-duty screed designs offered, with customers able to choose between the AS2302C, AS3301C, AS4251C and AS4252C.