Industry News & Updates
Stay informed with the latest developments in industrial metal manufacturing, mining technology, and company updates from CQ Rockbolt.
Resin Cartridges for Rock Bolts: Gel Time, Temperature and Storage Checks Before Ordering
A quotation for resin cartridges may list a diameter, length and setting-speed code. For a mining or tunneling buyer, those details leave several questions unanswered: Does the timing apply at the temperature underground? Does it fit the specified bolt and installation method? How much usable shelf life will remain when the shipment reaches the mine?When comparing resin cartridges for rock bolts, ask suppliers to identify the exact product, explain its timing conditions and document its storage requirements. This guide sets out the information to collect before ordering so that technical and commercial offers can be compared on the same basis.
Friction Rock Bolt Specifications: What Buyers Should Confirm Before Ordering
A friction rock bolt quotation is difficult to compare when it lists only a diameter, a length and a price. Buyers also need to know which product drawing applies, what is included, how the proposed bolt matches the drilling arrangement, and what the quoted performance figures actually describe.For mine engineers, technical buyers and ground-support distributors, the practical starting point is a clear specification package. This guide focuses on the slotted-tube friction bolt commonly described in product catalogues as a split set friction bolt. CQ Rockbolt lists this product family for underground mining and tunneling; the exact model and supply details should be confirmed against the current quotation.
Self-Drilling vs. Pre-Drilled Hollow-Core Rock Bolts: What Tunnel Contractors Should Confirm Before Ordering
Two quotations can describe threaded hollow rods, but still cover different installation tasks. One suggestion may be a self drilling system. Another possibility is to insert hollow bolts after drilling separate support holes.For tunnel contractors, this difference will affect the component list, equipment interfaces, and questions that need to be answered before purchase. The investigation of 'hollow anchor rods' alone leaves too much room for explanation.
Rock Bolt RFQ Checklist for U.S. Tunneling Contractors: What to Specify Before Requesting a Quote
A request for “rock bolts for a tunnel project” leaves the supplier with several unanswered questions. Which bolt system is specified? Does the quantity cover bars alone or complete assemblies? Is delivery required at a U.S. port, a warehouse or the jobsite?A useful request for quotation, or RFQ, gives rock bolt suppliers enough information to price the same scope and identify anything they cannot confirm. For the contractor, it also makes technical differences, missing accessories and delivery assumptions easier to compare before an order is placed.
Coal Mine Roadway Support Systems: How Rock Bolts, W-Straps, Mesh and Cable Bolts Work Together
Coal mine roadways are essential to safe, continuous underground operations. Their stability can be affected by changing geological conditions, mining-induced stress and excavation activity. As ground-control research increasingly focuses on the overall coordination and monitoring of support systems, rock bolts, W-straps, mesh and cable bolts should not be viewed as isolated components, but as elements that work together under site-specific mine conditions. This article explores their complementary roles in coal mine roadway support, while recognizing that support designs must be based on the conditions of each mine.
Five Major Advantages of Self-Drilling Anchors in Engineering Applications
In weak ground, fractured rock, loose soil, or rock masses with numerous joints, boreholes may narrow, shed material, or collapse. This can make it difficult to insert the anchor bar and may also affect subsequent grouting. Groundwater and changing strata add further uncertainty to construction.
What Is the Difference Between Rock Bolts and Cable Bolts, and When Is Each Used in Mining?
In underground mining, excavating a roadway or stope may cause the surrounding rock mass to loosen, separate, or deform. Both rock bolts and cable bolts can be used for ground support, but they differ in construction, load transfer, and engineering role. The key is not simply to ask “which one is stronger,” but to consider the extent of the rock that needs to be controlled, the available anchorage locations, and the conditions at the worksite.
2026 Autumn Canton Fair Advanced Manufacturing Trends: What New Opportunities Are Emerging for Mining Ground Support and Tunnel Anchoring Products?
The 2026 Autumn Canton Fair will become an important window for Chinese manufacturers to understand overseas sourcing demand. For companies involved in mining, tunneling and underground construction, the value of the fair is not limited to finding individual products. It also provides an opportunity to observe changes in engineering machinery, industrial equipment, mechanical basic parts, hardware tools and new materials.
Standards and Quality Requirements for Rock Bolts in Underground Mining and Tunneling Projects
In underground mines, tunnels, underground caverns, and slope excavation projects, rock bolts are among the most widely used components for rock mass reinforcement and ground support. They connect loosened shallow rock to deeper, more stable rock layers, improve overall rock-mass integrity, and limit the expansion of fractures and localized deformation. However, the performance of a rock bolt depends on more than the strength of the steel bar. It is also affected by ground conditions, support design, anchorage method, installation quality, field testing, and long-term durability. Therefore, rock bolt quality should be evaluated as part of a complete underground engineering support system.