In addition to a wide selection of blowers fabricated of materials to meet customer specifications and demanding environments, there is a separate series of Power Mizer® blowers with cast iron casings and cast aluminum impellers, which incorporate new concepts in high efficiency blower design. Spencer blowers range in size from fractional horsepower Vortex® Regenerative blowers all the way up to 2000 HP Power Mizer blowers.

Spencer also has extensive design expertise in heavy-duty vacuum systems, including central vacuum systems and mobile vacuum systems with broad industrial, and commercial  applications.

Besides standard products, Spencer specializes in custom designs targeted for such challenges as handling corrosive and toxic gases at very high temperatures and/or pressures. Spencer has an extensive Development Laboratory for customer testing and research including material conveying. There is a unique, diverse database of information about product and material conveying ranging from tennis balls to pharmaceutical tablets, capsules and powders in manufacturing processes. Complete computer resources are available including finite element analysis. Testing capabilities include ASME code testing and UL certified leak testing.