A positive displacement blower, also known as a PD blower or rotary air blower conveys gas or air from the upper inlet port into the stage using two parallel rotary pistons. These are mounted within a housing also called a conveying chamber.
Our innovative PD blowers are state-of-the-art and best suited to maximize productivity and minimize energy costs for environmental applications.
Our HOFFMAN DEFENDER series of PD Lobe and Screw blower packages means reliability, extreme sturdiness, and compactness. In a competitive global market, our long history of supplying blower solutions to suit our customers' unique requirements sets us apart from the rest. Using modern machining systems and state-of-the-art production processes, our product range is constantly evolving. We offer local service capability, ensuring our advanced technology is backed by technical support.
In a competitive global market, our long history of supplying blower solutions to suit our customers’ unique requirements sets us apart from the rest.
Using modern machining systems and state-of-the-art production processes, our product range is constantly evolving. With a presence in over 50 countries, we offer local service capability, ensuring our advanced technology is backed by technical support.
Our positive displacement blowers are manufactured with innovative parts and designs. Moreover, our blowers are:
Rotary screw positive displacement blowers are uniquely designed. The specialized capabilities of the new screw units create exciting economic opportunities, and various applications around the world are confirming very impressive results.
Screw blowers are volumetric. This means it simply moves the air. It is not a kinetic-energy or dynamic machine, so it does not have to convert different types of energies. A plant’s variable working pressure is easy to handle with volumetric screw technology.
In addition, the belt drive of a screw blower ensures the right capacity for the application. It allows the installation of the motor that’s most suitable for the power absorbed by the compressor and therefore enables operation at peak efficiency.
Other reasons to consider screw blowers are their less complex design, ease of maintenance, and quieter operation. Screw blowers are also better suited for intermittent use with frequent stops and restarts, which can further promote efficiency in certain process situations.
Learn more about our HOFFMAN DEFENDER™ screw positive displacement blower by clicking the link below.
Our DEFENDER™ rotary lobe blower range has been redeveloped in line with our customers’ exacting requirements and is suitable with environmental conditions between 104° F to -13° F (40° C to -25° C).
You can count on the HOFFMAN DEFENDER™ PD blower to:
We enhance and add value to our customers, taking on challenges, innovating, and working together.
Learn more about our HOFFMAN DEFENDER™ lobe positive displacement blower by clicking the link below.
As a world leader in blowers and exhausters for different industries, we are committed to playing a vital role by saving energy and protecting the environment.
Our equipment, systems, and services are dedicated to helping customers optimize their processes performance.