GR Infraprojects standardises on a fleet of 11 CFlo Combos for highway manufactured sand
GR Infraprojects, a listed Indian EPC company with about $880 million in annual revenue and a market value near $1.4 billion, operates a fleet of 11 CFlo Combo plants to keep manufactured sand quality steady as highway projects shift across states. The single-chassis Combo relocates from shutdown to on-spec production in roughly ten days, and its M-Sand costs about Rs 550 per tonne against Rs 2,000 for natural sand in Maharashtra.
Highway builders need consistent, IS 383 compliant manufactured sand at pace, but projects move. Conventional wet processing plants need heavy thickener foundations, large civil works and long mobilisation between sites, creating dead weeks with no revenue and risking quality drift with every relocation.
The CFlo Combo integrates all seven functions of wet processing on one patented single chassis: feeding, screening, classification, dewatering, water recovery, sludge handling and stockpiling. The water recycling system sits on the same self-standing chassis, so no heavy foundations are needed. The plant ships in standard containers, lands on simple pads without anchoring, and connects power, water, instruments and interlocks at marked plug-and-play points. In select projects, Combo shipped with precast pad segments that move with the machine.
Water is recycled up to 95% with zero liquid discharge, speeding water-use approvals at new sites. Noise stays under 80 dB, and Cloudlink remote support lets CFlo engineers check trends and fix many issues without a visit. Because every unit in the fleet shares core components, GR Infra keeps a single spares inventory and a unified maintenance schedule, with one trained crew handling disassembly, transport and recommissioning.
The choice has been stress tested at national scale: on Maharashtra's 701 km Samruddhi Mahamarg Expressway, contractors ran more than a dozen CFlo Combo plants, and nearly 45% of the expressway used sand produced by these units. GR Infra also saves 20-25 kg of cement per M45 concrete mix using CFlo M-Sand.
We studied CFlo technology in detail. In 2017 we took the first CFlo unit, then bought five more in 2017–18 and another five in the following years. M sand made from crusher dust using CFlo is superior to natural sand. Results are better. We save 20–25 kg of cement in M45 concrete. In Maharashtra natural sand costs about Rs 2,000 per tonne; CFlo sand costs about Rs 550 per tonne. The plant looks great. It is the Mercedes Benz of India.
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