Technical Details
Drilling Rig and Equipment
A Boart Longyear Deltabase DB051 has recently been purchased by the company. This rig is a rubber tracked, low ground pressure, self propelled unit offering the latest technology from one of the worlds leading drilling rig manufacturers. The rig is transported to site using a 4x4 support vehicle with a fully equipped box van trailer. As a result all the equipment and materials that may be required on a site can be transported without exceeding weight limits.
Some of the features that the drilling rig offers are detailed below:
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Self propelled drill rig with rubber tracks
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Compact dimensions of 2030x770x1470mm (LxWxH) to fit through most standard door openings
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Yanmar diesel engine (can be fitted with a Chalwyn valve and spark arrestor if required)
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Boart Longyear R32 Impactor rods providing a more robust alternative to standard window sampling rods. More resistant to fatigue failure and with rapid connect threads
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Simple and robust drive head for improved efficiency
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Hydraulic power take off to operate hydraulic hammer for breaking out and coring head for coring surface pavements
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Integral mast jack with 4.5 tonne pullout force, additional jack with 15 tonne pull back force
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Twin speed drill mast and feed system
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Low ground pressure with operational weight of approximately 900kg
Health and Safety Features
- Fully guarded mechanism
- ce approved rig
- Emergency stop buttons
- Fire extinguisher
- Health and safety file held on site including rig data, generic method statements, risk assessments and COSHH assessments for activities undertaken/materials used
Technical Specification
The figures in these tables have been calculated, based on field experiences and may be reasonably expected. Ratings are based on a vertical, straight, clean hole using 63.5kg drop weight. Actual drilling capacity will depend on exact methodology adopted, ground conditions and equipment used.
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Standard Drilling System
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Auto hammer
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Impact Rate
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1-30bpm
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Length of travel
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500 / 760mm
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Hammer Weight
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50 / 63.5kg
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Sampling Depth (approx.)
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10m
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Probing Depth (approx.)
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15m
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Duplex System
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Windowless sample diameters
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66, 76, 86, 101, 116mm
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Duplex casing diameters
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116, 128mm
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Rods
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R32 Impactor rods
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Dynamic Probing
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Standard drilling rods
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35mm probe rods
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Outer diameter
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35mm
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Wall thickness
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Solid bar
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Length
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1000mm
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Hydraulic System
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Pump
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Triple Stacked Casappa Gear Pumps
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Capacity
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3x15l/min
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Max Pressure
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15MPa
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Engine
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Yanmar Diesel
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Air cooled, electro start
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Displacement
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0.41l
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Power maximum
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7.4kW
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Drill Mast and Feed System
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Feed stroke
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1350mm
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Fast raise speed
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50mm/s
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Normal raise speed
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25mm/s
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Pull back force
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20kN
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Jack pull back force
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150kN
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Dimensions and Weights
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Approximate weight
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900kg
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Length
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2250mm
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Width
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770mm
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Height (mast folded)
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1360mm
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Height (mast raised)
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Up to 3200mm
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Coring Head
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Coring bit
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142mm
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Hydraulic motor
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Danfoss 100cc epicyclic gear motor
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Electric Diamond Coring Rig
Hilti bolt on DD200 110v electric coring rig with water flush
Petrol generator
Range of bit sizes
Rods to exceed 5metres