ELGi's LD Series - 3 to10 Hp - Two Stage Direct Drive Reciprocating Air Compressor LD series reciprocating air compressors are designed to offer time-proven reliability at low operational speed and assure minimum direct cost with high energy savings. The reciprocating air compressors are ideal for customers looking for a significant impact on power, cost, low noise capacity, small air demands, and long-running capacity of more than 8 hours a day. The ELGi reciprocating air compressors are reliable and come with a unique integrated drive and a highly efficient IE2 6 pole motor. They are suitable for automobile, textile, food & beverages, paint shot, plastic manufacturing, CNC operation, and metal fabrication sectors.