NEW PRODUCTS AND INNOVATIONS Normet reveals new range of spray robots 1 Apr 2014
Normet News Release
Finnish tunnelling equipment, construction chemicals and rock reinforcement specialist Normet introduces the first of its new generation of concrete sprayers – the SF series.
Normet’s Spraymc SF 050 range of mobile concrete sprayers

Normet’s Spraymc SF 050 range of mobile concrete sprayers

The Spraymec SF 050D is a diesel-hydraulic self-propelled mobile concrete sprayer that has been engineered to optimize concrete spraying in small and medium-sized tunnels. It offers a maximum vertical spraying reach of 9.3m, and is equipped with the well-known Normet SB 500 mining spraying boom for efficient spraying across a 6m x10m face on one setting.
The 050V is an electro-hydraulic alternative, while the 050DV features both diesel and electrically driven hydraulics. All three mobile sprayers require an external pneu-matic air supply for concrete spraying, and feature a concrete spraying pump with a pumping capacity up to 25 m3/hr, and the latest version of the Nordoser accelerator dosing system (Nordoser XI) with manual or electronic control (dosing synchronized with concrete output). The Nordoser system features:
  • low-pulsation spraying and pumping;
  • accurate and reliable accelerator dosing (control system automatically integrated into concrete output);
  • accurate spray boom and nozzle movements and positioning;
  • real-time control and fault diagnostics of the spraying process, including accelerator, concrete and ambient temperature measurement;
  • logging of all spraying process related data with USB data transfer and readiness for WLAN;
  • comprehensive vehicle fault diagnostics; and
  • operators multi-colour display for driving and concrete spraying
The Spraymec SF50 range also includes an onboard stainless steel accelerator tank with a 500 litre capacity, and the operator can control the spraying process via cable or, optionally, via radio remote control. With four-wheel drive, an articulated frame and a width of only 1.8m, all models in the Spraymec SF 050 series are easy to manoeuvre in narrow tunnels and capable of turning in a 4m wide drift.
The Spraymec 050D, which was unveiled at the recent 12th Australian Underground Operators Conference in Adelaide, comes with the Nordoser XI system enabling intelligent control of concrete and accelerator output allowing low pulsation concrete spraying. This feature gives more constant flow of concrete to the nozzle making it possible to produce a higher quality and more homogenous final lining structure than previously possible. Accelerator consumption is lower because there are fewer and smaller pulses in the jet coming out from the nozzle.
The Spraymec range features two other optional control systems for accelerator dosing; XH which is a manually adjusted hydraulically controlled system; and XE which is an electrically controlled system where accelerator dosing is synchronised automatically with concrete average output but without intelligent control of the concrete pump.
The new improved cabin has more space for the operator and the new dashboard features an LCD multi-information display (MID) that replaces previous separate gauges. An upgraded spraying boom, the SB 500B includes a strengthened structure and has larger diameter hydraulic cylinders to give more power for spraying operations
Normet adds D-Bolt to its range of support - TunnelTalk, Feb 2013

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