Martin Machinery, Used & New Generators - 50kW to 2800kW, Quality reconditioned gensets Since 1976. Specializing in Cogeneration packages using Caterpillar, Guascor, GE-Jenbacher, MAN, Waukesha and more engines. Industrial - Commercial - Agricultural - Residential. Buy Direct From the Manufacturer and Save. Sales, Rental & Service. Standby/CO-GEN CHP/Prime Power - Diesel - Propane - Natural Gas - Methane Gas - Landfill Gas - BIO Gas.