Josef Romberger Maschinenfabrik GmbH
About
Josef Romberger Maschinenfabrik GmbH, a Bavarian family firm with more than 120 years in mechanical engineering, designs and builds bulk material conveying equipment in-house and delivers turnkey installations from planning through on-site erection. Environmental and wastewater technology and sludge dewatering count among its stated core competencies. Screw conveyors lead the wastewater range in seven configurations - trough, tube, paddle, dosing, twin/multi-shaft, spiral, and cooling/heating - rated 0.1 to 400 m3/h at angles up to 90 degrees with fluid-tight, odor-tight, and gas-tight sealing, moving sludge from centrifuge discharge, screenings from bar screens, and grit at headworks. The wider catalog adds trough chain conveyors, bucket elevators, belt conveyors, feed hoppers, continuous shredders, the ECO STAR fermentation substrate dryer, biogas plant feeders, through- and circulation dryers, mixers, and sampling systems. It also serves the biogas, chemical, pharmaceutical, food, agricultural, and building materials industries.
Key Products
Transport bulk materials including sewage sludge, screenings, and grit in wastewater treatment plants; available in trough, tube, paddle, dosing, twin/multi-shaft, spiral, and cooling/heating variants with capacities 0.1-400 m3/h
Convey bulk solids and dewatered sludge horizontally or at inclines using chain-driven scrapers in enclosed troughs
Vertically lift bulk materials including sludge and screenings between process stages at wastewater treatment facilities
Transport bulk materials and dewatered sludge continuously over horizontal and inclined distances
Buffer and meter bulk material intake into downstream conveying and processing systems
Reduce particle size of organic substrate and solids in biogas and wastewater pretreatment processes
Dries fermentation residue from biogas digesters, reducing volume and enabling beneficial reuse of digestate
Meter and feed solid substrate into biogas digesters with controlled dosing for stable fermentation
Dry bulk materials including sludge and fermentation residues using continuous or recirculating hot air flow
Blend and homogenize bulk materials, slurries, and sludge in industrial and wastewater treatment processes
Extract representative samples from bulk material streams for quality control and process monitoring
Custom-engineered machinery for specific process requirements including sludge dewatering and wastewater treatment applications
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