In tunnelling, underground construction, and rock support applications, a high-quality shotcrete machine is mission-critical. The Normet Spraymec 8100 VC stands out as a premium, mobile, self-propelled spraying unit tailored for medium to large tunnel profiles. Its advanced features and robust design make it a top choice when precision, durability and mobility matter most. This review explores its specifications, on-site performance, and likely pricing considerations for the Indian market.
The Spraymec 8100 VC offers a maximum vertical reach of 14 meters, enabling spraying in large tunnel sections without repositioning. The concrete pump output for spraying operations is up to 30 m³/hour, with a theoretical casting capacity of up to 40 m³/hour in certain configurations. The machine also features a high-volume onboard air compressor (approximately 12 m³/min) to support wet-mix spraying, and is mounted on a carrier with four-wheel drive and four-wheel steering for maneuverability in restricted underground or tunnel environments. An integrated automation system called NorSmart provides real-time monitoring, data logging, and diagnostics of spraying parameters and boom movements. Sustainability is addressed via options for Stage V emissions engines, or battery-electric drive systems (in the "SD” variant) for underground sites requiring low emissions.
Contractors operating in underground construction report that the Spraymec 8100 VC delivers an impressive combination of mobility and output in confined conditions. Its remote-controlled spray boom allows precise application of shotcrete even in complex geometries. The automatic accelerator dosing and low-pulsation pump ensure consistent quality of sprayed concrete, reducing rebound and improving structural performance. Thanks to its compact carrier height (tramming height around 3.2 m) and steering flexibility, it can navigate tunnels with cross sections as low as 15-140 m², thereby minimizing repositioning downtime. For Indian conditions — where underground metro projects, tunnel linings and slope stabilisation often require high productivity — the machine’s capability to deliver up to 30 m³/h becomes a significant strategic advantage.
Normet has engineered the Spraymec 8100 VC with maintenance in mind: service points are centrally located, lubrication systems are optimised, and cleaning of the concrete hose & line is made faster. These factors matter in sites with limited logistics or harsh terrain, commonly found in India’s hilly infrastructure and tunnelling zones. The availability of both diesel and battery-electric drive options further allows contractors to adjust based on site constraints such as ventilation or emissions-sensitive zones.
Exact pricing for the Spraymec 8100 VC will vary by configuration, optional features (automation package, electric drive, accelerator tank size), and import duties. While a fully-equipped unit will carry a premium initial expenditure, the decision for many infrastructure contractors and rental firms hinges on performance per shift, uptime, and life-cycle cost. In India’s fast-growing tunnel and metro segment, the machine’s higher productivity and reliability often translate into lower cost per cubic metre sprayed — justifying the investment. (Detailed Indian pricing data was not publicly disclosed.
If your project involves tunnelling, underground metro corridors, slope stabilisation, or large-scale sprayed concrete applications — the Normet Spraymec 8100 VC offers one of the most capable solutions on the market. For smaller, infrequent shotcrete use, a less sophisticated unit may suffice. But for demanding, high-volume, quality-sensitive work streams in 2025, this machine delivers both capability and future-proof flexibility.
Meena Iyer is a construction site manager with more than 12 years of experience in infrastructure and commercial projects. She specializes in equipment planning, rentals, and maintenance scheduling. Through her blogs at Equipments Dekho, Meena shares practical advice and project-tested insights that help contractors save time and money.
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