Product Catalog

Features:

• An environmentally friendly solution Jennmar Virsbolt is a safe and environmentally friendly way to speed up your tunneling operation. Just add water, no need for chemicals or cement grout to anchor the bolt. It creates a better working environment without the need to use chemicals.
• High safety Jennmar Virsbolt is made of a steel with exceptional formability properties, ensuring a safe and reliable performance in different rock conditions.
• Instant load bearing when the hole is drilled, the folded rock bolt is inserted and expanded with water from a high-pressure pump. As soon as the bolt is expanded it squeezes tightly against the rock. The load is carried immediately — no waiting for grout or resin to harden
• Fast installation Jennmar Virsbolt expandable rock bolt is the fastest way to secure the rock roof when tunneling and mining in both soft and hard rock. The bolts are not sensitive to variations in drill hole diameter.
• Virsbolt+ — The difference between Jennmar Virsbolt and Jennmar Virsbolt+ is the elongation characteristics. Jennmar Virsbolt has a typical elongation A5 of 15 %. Jennmar Virsbolt+ has a typical elongation A5 of 30%, making this product a leader in expandable rock bolts.
• Corrosion protection Jennmar Virsbolt and Jennmar Virsbolt+ can be delivered with corrosion protection from a polymer alloy coating. This will save a step in your production and thereby time and money.