Resin Cartridge

I. Product Overview: Fully Certified Mine Support Materials

Shandong Ruiyu Mining Materials Processing Co., Ltd., located in Xintai City, Tai’an, Shandong Province, is a company specializing in the research, development, and production of mining materials. The company’s resin anchor grout has passed rigorous certification by the National Safety Mark Center for Mining Products and complies with the requirements of the MT146.1-2011 national standard.

This product is a paste-like bonding material formulated from unsaturated polyester resin, marble powder, and various additives in specific proportions. It is packaged in a two-component cartridge format, with the paste and curing agent separated by a specialized polyester film. This unique two-component packaging design ensures the product’s stability during storage. When in use, the film is broken by stirring with an anchor rod, allowing the resin and curing agent to mix thoroughly and undergo a cross-linking reaction, rapidly curing within a short time to form a strong anchoring force.

II. Key Advantages: Why Choose Shandong Ruiyu Anchoring Agent?

1. Compliant with Regulations, Safe and Reliable

Shandong Ruiyu’s mining resin anchoring agent holds a valid Mining Product Safety Mark Certificate (MA certification) and strictly adheres to national safety regulations for coal mine use. This certification serves as an authoritative endorsement of the product’s quality and safety, and is a prerequisite for procurement by mining operations.

2. Fast Curing Speed, High Construction Efficiency

The product offers multiple curing speed variants to meet the needs of different working conditions:

Fast Type: Gel time of 5–10 minutes, compressive strength of up to 22 MPa within 4 hours

Medium-speed type: Gel time 10–20 minutes, compressive strength reaches 20 MPa within 4 hours

Slow-speed type: Gel time 30–60 minutes, compressive strength reaches 30 MPa within 24 hours

This flexible curing speed design allows construction teams to select the most suitable anchor grout model based on roof conditions and cycle operation requirements.

3. High Early Strength and Strong Load-Bearing Capacity

Shandong Ruiyu Anchor Adhesive exhibits excellent early strength development characteristics: strength reaches 12–18 MPa within 30 minutes, 25–30 MPa within 4 hours, and 50–60 MPa within 28 days. This rapid strength development allows the anchor bolts to provide effective support resistance in the shortest possible time, significantly reducing the waiting time for support.

4. Micro-expansion Properties for More Reliable Anchoring

The product exhibits micro-expansion, with a linear expansion rate of 3‰. This property allows the grout to form a tighter bond with the borehole wall after curing, effectively compensating for curing shrinkage and significantly enhancing the long-term stability and reliability of the anchoring system.

5. High Market Recognition and Strong Export Capabilities

In May 2025, Shandong Ruiyu joined a delegation of mining equipment enterprises from Tai’an City to participate in the Vietnam Mining and Processing Technology Exhibition, successfully entering Vietnam’s largest support material supply chain system. Annual exports are projected to exceed 2,000 tons. In 2024, the company was selected as a winning bidder for the resin anchor grout procurement project of Hebi Coal & Power Co., Ltd., fully demonstrating the market competitiveness and industry recognition of its products.

III. Performance Indicators: A Comprehensive Overview of Technical Specifications

Product Specifications

Model: MSCKb (Resin Anchor Grout)

Packaging Specifications: Multiple options available, including MNH32/250; customizable to meet project requirements

Shandong Ruiyu Anchor Adhesive uses unsaturated polyester resin as the primary bonding material, combined with an organic peroxide curing agent (such as benzoyl peroxide, BPO) and an accelerator (N,N-dimethylaniline, DMA) to form an initiation system that ensures a stable and controllable curing reaction. Fillers are selected from moisture-free inert materials (such as calcium carbonate powder and quartz powder), effectively reducing resin shrinkage and enhancing bonding reliability.

IV. Application Scenarios: Comprehensive Mine Support Solutions

1. Coal Mine Tunnel Support

This is the core application area for Shandong Ruiyu Anchor Adhesive. In fully mechanized mining faces and tunneling operations, the product is used in conjunction with high-strength threaded steel resin anchors to form a combined support system consisting of “anchors, anchor cables, and metal mesh.” Anchor rod support functions through multiple mechanisms, including arch reinforcement, suspension, and composite beam action, effectively controlling roof separation and wall convergence in mine tunnels.

2. Non-Coal Mines and Tunnel Engineering

In metal mines, phosphate mines, as well as high-speed rail and highway tunnels, the product is widely used for the installation of system anchor rods and foot-locking anchor rods. Shandong Ruiyu also manufactures mining anchor cables (Specification: SKP18-1/1860, Safety Mark Number: MEF180005), which can be used in conjunction with the grout to form a more robust support system.

3. Equipment Foundations and Emergency Rescue Operations

In the securing of mining equipment foundations, temporary reinforcement of underground fracture zones, and emergency rescue operations, Shandong Ruiyu grout is often the material of choice for emergency support due to its rapid-setting and high-strength properties. Its micro-expansion characteristics make it particularly suitable for anchoring equipment foundation bolts.

4. Building Reinforcement and Infrastructure

The product is also widely used in building reinforcement, highway repairs, foundation anchoring, and component anchoring, demonstrating excellent adaptability across multiple applications.

V. Proper Usage Methods and Precautions

To ensure effective anchoring, Shandong Ruiyu recommends the following standard construction procedures:

Hole Cleaning: Use compressed air or water to remove loose dust from the borehole and prevent water accumulation inside the hole.

Material Injection: Inject the selected anchoring agent into the bottom of the hole one by one according to the designed anchoring length.

Mixing: Activate the mixer to rotate the rod for 30±5 seconds, then advance it at a constant speed to the bottom of the hole

Curing: After removing the mixer, immediately wedge the rod at the hole opening; do not move it until cured

Tightening: For the fast-setting type, apply the support plate and tighten the nut after 7 minutes; for the medium-setting type, do so after 15 minutes

Storage Requirements: The product should be stored in a well-ventilated, moisture-proof warehouse at a temperature not exceeding 30°C.

VI. Choose Shandong Ruiyu to Strengthen Safety Measures

The mining resin grout produced by Shandong Ruiyu Mining Materials Processing Co., Ltd. has become a trusted choice in the field of mine support, thanks to its compliance with MA safety certification, technical advantages such as rapid curing and high strength, the reliable properties of micro-expansion, and export-grade quality standards.

The company not only strives for excellence in product quality but also provides comprehensive services in areas such as construction guidance and technical solution optimization. As mining depths continue to increase and geological conditions grow increasingly complex, Shandong Ruiyu will continue to innovate, providing superior product solutions to ensure safe mining operations.

For mining enterprises and engineering firms seeking high-quality resin grouts for mining applications, Shandong Ruiyu is undoubtedly a partner worthy of serious consideration. Choosing Ruiyu is not merely selecting a product; it is choosing a guarantee of safety.