Lock bolt plate "Signal Washer"
Real-time status monitoring is possible! Visualization of ground strength and plates for rock bolts.
The "Signal Washer" is a plate developed to detect ground displacement caused by high earth pressure. It is set with a standard rock bolt, and when the axial force generated in the bolt exceeds a certain level, the coating of the special paint applied to the washer peels off, allowing for easy visual confirmation of deformation. 【Features】 ■ 24-hour real-time condition monitoring ■ Easy installation ■ Visual representation of condition changes ■ No electricity required ■ Patent registered ■ NETIS registered KT-180047-A *For more details, please refer to the PDF document or feel free to contact us.
basic information
【Specifications】 ■Outer diameter size: 150×150×t9mm (φ25mm, φ45mm) ■Weight: 1.5kg ■Material: SS400, S45C ■Surface treatment: One-sided epoxy-based special coating ■Surface protection: Treated with protective film *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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As a pioneer in post-installed anchors in Japan, KFC was established in 1965. We respond to customer needs with a consistent system from product development to sales and construction. Our business activities are centered around three main areas: construction fastening materials such as post-installed anchors, materials for tunnel excavation like rock bolts and auxiliary methods, and various construction works related to seismic reinforcement, safety measures, equipment, and refreshment.