About STB Engineering

STB Engineering was founded in Stroud in 1969, pioneering the development of Dense Phase pneumatic conveying technology, silo manufacture and powder handling systems. The company established itself as the UK’s leading Bulk Materials Handling and Pneumatic Conveying Specialists.

Our early Dense Phase systems found favour with the likes of the Milk Marketing Board and the Polymer industries, where the need to transport high volumes of powders over long distances with minimal degradation was paramount. In addition, this type of conveying was more hygienic and was found to require far less maintenance than mechanical conveying techniques. Many of the early systems installed are still in operation today, performing to their original specification after 30 years’ continuous service.

At the time, cohesive powders had not been successfully conveyed using the Dense Phase method and in the early ‘70’s, STB became one of the first companies to market Pulse Phase conveying technology. This refinement of Dense Phase conveying made it possible to transfer cohesive products down a pipeline at low velocity by using an air knife to ‘cut’ the material into plugs.

In 1974, STB acquired a local fabrication company and embarked on an ambitious program to expand capacity to enable construction of one-piece silos up to 25m high by 4.2m diameter. STB are now one of the country’s leading authorities on silo design and manufacture.

By the late ‘70’s, STB had developed their range of Dilute Phase conveying – a relatively simple and low-cost conveying system aimed at the food and polymer processors. Several hundred of these systems have now been installed in applications as diverse as bakeries, pharmaceutical plants, confectionery manufacturers and tyre-makers.

More recently, there has been a trend towards vacuum systems and this has proven especially popular in the field of plastics and PVC extrusion. Today, the STB Vacuum Line Feed System feeds more major PVC extrusion plants in the UK and Ireland than any other type of system, bearing testament to its proven performance and reliability.

STB has also acquired complementary expertise in batching and weighing systems in the food, pharmaceutical, plastics, chemical and mineral industries. STB is the UK market leader in the supply of mixing plants to the polymer industry.

In 2023 STB Engineering Ltd began to offer weld overlay cladding services, with services including corrosion resistant cladding solutions for flange faces, ring grooves, flanges bores and much more, complimented by full NDT services, project management and full project documentation.

STB Pneumatically Conveying Free-flowing Powders
STB’s wealth of knowledge, coupled with over 50 years bulk materials handling experience, ensures technically assured results and performance time after time.
Food Storage and Discharge Solutions STB Engineering
Food Storage and Discharge Solutions STB Engineering
Bulk Materials Weighing STB Transfer Feeding
STB Engineering Bulk Storage Vessels
STB Engineering Bulk Storage Vessels
High Quality Hygienic Storage Solutions STB Silos
High Quality Hygienic Storage Solutions STB Silos
STB Medium Phase Conveying Systems Transfer
STB Experts in Batching Weighing Feeding Systems for the Food Industry