It's an economical high-speed forepolling method that advances by "digging 3 meters at a time" with ease.
The "SP-IF method" is an economical high-speed fore-poling that allows for easy work with "advancement of 3 meters at a time." A 2.5m hollow FRP bolt is connected to the rear end of a 4m self-drilling bolt, allowing for a total fore-poling length of 6.5m. It achieves a minimum of two layers of top-end bolt reinforcement at all excavation locations. 【Overview】 ○ Implemented for every three steel supports (advancing 3m at a time) ○ Narrow excavation while cutting away the subsequent FRP pipe ○ Striking the drive coupler to avoid damage to the FRP bolt ○ SP-IF excavation length: 3.0m For more details, please contact us or download the catalog.
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【Features】 ○ Achieves a minimum of two layers of top-end bolt reinforcement at all drilling locations. ○ In addition to the tip bit section, discharge is made from adjustment small holes near the drilling line. ○ The injection amount per bolt length is approximately 1.5 times that of conventional PUIF (achieving effective pre-top reinforcement with a similar injection amount per drilling length). ○ Changes the conventional cycle from every 1m to every 3m, enabling high-speed construction. ● For more details, please contact us or download the catalog.
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Our company does not seek unreasonable profits from our customers or society. We will always carry out our business activities with the purpose of our company's existence in ten years in mind. We will strive in product development and supply with the daily thesis of the simple condition required of suppliers: "How can we provide good products at a low cost?"