Editorial Technical Reference

Rock Bolting Rig

This page explains how Rock Bolting Rig is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A specialized drilling machine used to install rock bolts for ground support in mining, tunneling, and civil engineering applications.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Rock Bolting Rig

Definition
A rock bolting rig is a heavy-duty, mobile drilling machine specifically engineered for installing rock bolts, which are long anchor bolts used to stabilize rock formations and prevent collapse in underground excavations. These rigs are essential in mining operations, tunnel construction, slope stabilization, and other geotechnical engineering projects where ground support is critical for safety and structural integrity. They typically feature hydraulic or pneumatic drilling systems, automated bolt insertion mechanisms, and precise positioning capabilities to work in challenging underground environments. The rig's design focuses on reliability and efficiency, with components such as high-strength steel frames, hardened alloy components, and industrial-grade hydraulic systems. Key parameters include a drilling depth of 3–6 meters, a hole diameter range of 32–64 mm, a drilling speed of 0.5–2.0 meters per minute, and a torque capacity of 150–300 Nm. Bolt installation time averages 30–60 minutes per bolt. Operating pressure is 1.0–1.6 MPa, air consumption is 3–6 m³/min, rotation speed is 100–300 rpm, and feed force is 10–20 kN. The rig's overall dimensions are 2500×800×1200 mm, with a weight of 800–1200 kg. Noise level at the operator position is ≤95 dB(A) (ISO 11201), and hand-arm vibration at the handle is ≤2.5 m/s² (ISO 5349). These values are reference ranges and must be verified for the specific model and application. The rig operates by drilling a hole into the rock face using a rotary-percussive or rotary mechanism, then inserting a rock bolt (typically a steel rod with expansion shells or resin anchoring systems). The installation system may rotate the bolt to mix resin cartridges, expand mechanical anchors, or tension the bolt to create a secure anchor point. Hydraulic or pneumatic power provides the necessary force, while control systems manage positioning, depth measurement, and installation parameters. For procurement, verify model-specific specifications, standards compliance, and suitability for your rock conditions with the legal manufacturer or supplier.
Working Principle
The rock bolting rig operates by first drilling a hole into the rock face using a rotary-percussive or rotary drilling mechanism. Once the hole reaches the required depth, a rock bolt (typically a steel rod with expansion shells or resin anchoring systems) is inserted into the hole. The rig then activates the bolt installation system, which may involve rotating the bolt to mix resin cartridges, expanding mechanical anchors, or tensioning the bolt to create a secure anchor point. Hydraulic or pneumatic power systems provide the necessary force for drilling and bolt installation, while control systems manage positioning, depth measurement, and installation parameters.
Common Materials
High-strength steel, Hardened alloy components, Industrial-grade hydraulic systems
Technical Parameters
ParameterTypical rangeNotes & selection driver
Drilling DepthRequired3–6 metersMaximum achievable drilling depth for bolt installation
Hole Diameter RangeRequired32–64 millimetersRange of hole diameters the rig can drill for different bolt sizes
Drilling SpeedRequired0.5–2.0 meters/minuteAverage drilling rate in typical rock conditions
Torque CapacityRequired150–300 Newton-metersMaximum rotational force available for drilling and bolt installation
Bolt Installation Time30–60 minutesAverage time to install a single rock bolt including drilling
Air Consumption3–6 m³/minAt operating pressure.
Rotation Speed100–300 rpmAdjustable for different rock conditions.
Feed Force10–20 kNEnsures effective penetration.
Overall Dimensions (L×W×H)2500×800×1200 mmCompact for underground mobility.
Weight800–1200 kgDepends on configuration and options.
Noise Level≤95 dB(A)At operator position.ISO 11201
Vibration Level≤2.5 m/s²Hand-arm vibration at handle.ISO 5349

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Drilling Boom
    Provides positioning and support for the drilling mechanism, allowing precise hole placement
    Material: High-strength steel with hydraulic actuators
  • Rotary-Percussive Drill Head
    Combines rotational and impact forces to drill holes in rock formations
    Material: Tungsten carbide drill bits with hardened steel components
  • Bolt Feeder Mechanism
    Automatically feeds rock bolts into drilled holes and positions them correctly
    Material: Steel construction with hydraulic or pneumatic actuators
  • Hydraulic Power Unit
    Provides hydraulic power for drilling, positioning, and bolt installation operations
    Material: Steel housing with hydraulic pumps, valves, and reservoirs
  • Operator Cabin
    Protected enclosure for the operator with control systems and environmental controls
    Material: Steel frame with safety glass and climate control systems
  • Dust Collection System
    Captures and filters drilling dust to maintain air quality in underground environments
    Material: Steel ducting with filtration media
  • Control Systems
    Manage positioning, hole depth and bolt installation parameters.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rock Bolting Rig.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 25 MPa hydraulic system pressure
flow rate: 30-120 L/min hydraulic flow
temperature: -20°C to +50°C
slurry concentration: Up to 40% solids by weight for grouting applications
Media Compatibility
✓ Hard rock formations (granite, basalt) ✓ Coal mine strata ✓ Tunnel lining in sedimentary rock
Unsuitable: Underwater or submerged applications without specialized sealing
Sizing Data Required
  • Maximum drilling depth (meters)
  • Rock hardness/strength (MPa or UCS)
  • Required bolt diameter and type (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Hydraulic cylinder seal failure
Cause: Contamination from rock dust and debris entering hydraulic fluid, combined with high-pressure cycling causing seal degradation and extrusion
Drill head bearing seizure
Cause: Inadequate lubrication due to dust ingress and water contamination, leading to abrasive wear and eventual thermal seizure under high torque loads
Maintenance Indicators
  • Audible grinding or knocking from drill head during operation
  • Visible hydraulic fluid leaks at cylinder connections or excessive drift in boom positioning
Engineering Tips
  • Implement proactive hydraulic fluid analysis program with particle counting to detect contamination before component damage occurs
  • Establish regular drill head bearing lubrication schedule using high-temperature, waterproof grease with dust seals inspection and replacement

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI/ASME B30.27 - Material Hoists DIN 21520 - Rock Bolting Equipment

Quoted from the published standard.

Manufacturing Precision
  • Bore Diameter: +/-0.05mm
  • Parallelism of Mounting Surfaces: 0.15mm
Quality Inspection
  • Ultrasonic Testing for Structural Integrity
  • Load Testing to 125% Rated Capacity

Manufacturers of Rock Bolting Rig

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Jiangxi Siton Machinery Manufacturing Co., Ltd.
Jiangxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources
KAMACH MINING
Jiangxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
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Manufacturing capability
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Inspection readiness
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Supplier transparency
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Frequently Asked Questions

What is the typical drilling depth range for a rock bolting rig?

According to the directory reference, the drilling depth range is 3–6 meters. However, this is a general range and the actual maximum depth depends on the specific model and rock conditions. Always verify with the manufacturer or supplier for your application.

What standards are referenced for noise and vibration levels?

The noise level is referenced to ISO 11201, with a maximum of 95 dB(A) at the operator position. The hand-arm vibration level is referenced to ISO 5349, with a maximum of 2.5 m/s² at the handle. These standards are for verification purposes; compliance must be confirmed by the manufacturer.

How does the rig install rock bolts?

The rig drills a hole, inserts the rock bolt, and then activates the installation system. This may involve rotating the bolt to mix resin cartridges, expanding mechanical anchors, or tensioning the bolt. The specific method depends on the bolt type and the rig's configuration.

What are the key parameters to consider when selecting a rock bolting rig?

Key parameters include drilling depth, hole diameter range, drilling speed, torque capacity, bolt installation time, operating pressure, air consumption, rotation speed, feed force, dimensions, weight, noise level, and vibration level. These are reference values; confirm them with the manufacturer for your specific needs.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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