SORG Group has successfully completed the reconstruction and redesign of the VN1 furnace for The Branch of Malaya – Vietnam Glass Limited, delivering a significant increase in production capacity while maintaining the existing furnace footprint.

Originally designed and supplied by SORG in 2011, the end-port furnace had operated continuously for more than 14 years before entering reconstruction. The project focused on increasing melting capacity from 280 to 340 tonnes per day for container glass production across all glass colours, while reusing as much of the existing tank steel structure as possible.

To achieve the higher output, SORG integrated a high-performance melting and barrier booster system, requiring extensive modifications to both the furnace steel structure and refractory design. The furnace geometry in the melting end basin and superstructure was redesigned to accommodate the upgraded operating conditions.

A key technical enhancement was the installation of the SORG Deep Refiner SDR®, designed to extend melt dwell time and maintain glass quality at increased throughput levels. This required modifications to the throat and riser areas on both the steel and refractory sides.

The upgraded glass conditioning system now includes a SORG STW distribution channel and four SORG 340S+® forehearths. SORG also supplied the required reconstruction components and SCADA system, while supervising steel and refractory construction, equipment installation, heat-up, filling, and commissioning.