Mont Stubline d.o.o. is a mechanical engineering company from Stubline (Belgrade area, Serbia), specialised in design, manufacture and installation of equipment for biogas plants – with a strong focus on double-helix (HEX) biomass heat exchangers.
Since 2011, we have been supplying leading EPCs and operators with HEX systems and related steelwork: from thermal and mechanical design, through fabrication and testing, to delivery and site installation. In-house engineering, proven QA procedures and close cooperation with our clients result in robust, reliable HEX units tailored to each specific plant.
Double-helix heat exchangers engineered as pressure equipment to EU standards, with full material traceability and controlled fabrication.
Qualified welding procedures, VT/PT inspections, pressure testing and complete documentation, including thermal design and operating guidelines.
From concept to long-term operation, we support clients with HEX know-how, process integration and service for stable performance in heavy-duty biomass.
Double-helix modules installed on biogas and anaerobic digestion plants in Denmark, Sweden, Germany, UK, France, Poland, Faroe Islands and Ukraine, with new projects in Canada, Finland and Spain.
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