LE90R Small portable core drill rig is a compact boring machine developed for diamond core drilling, soil investigation and geological exploration. Installed on a robust steel drag skid, the complete unit integrates the power system, four-speed transmission, drill head, hoist, hydraulic slide base, control tank, drag pulleys and four-pole mast.
A 15 HP diesel engine is supplied as the standard power source, while alternative power options can be selected for different working environments. The drill head and planetary hoist are both driven through the four-speed transmission, allowing operators to adapt the drilling and lifting speed to changing ground conditions.
Twin hydraulic feed cylinders provide continuously adjustable drill-head movement and an upward thrust of up to 5,580 kgf at 103 bar. The drill head can be swiveled for angle drilling, while the hydraulic slide base offers 370 mm of movement toward or away from the borehole. Three drag pulleys make it easier to reposition this portable diamond core drilling rig between drilling points.
► Application:
The LE90R portable core drill rig is suitable for:
1. Diamond core drilling
2. Soil and geotechnical investigation
3. Geological exploration
4. Rock and soil core sampling
5. Mineral exploration drilling
6. Foundation site investigation
7. Construction ground surveys
8. Vertical and inclined borehole drilling
9. Difficult-access and confined-site drilling operations
► Features:
1. Compact, skid-mounted design for convenient transportation
2. Suitable for diamond core drilling and soil investigation
3. Standard 15 HP diesel engine with optional power configurations
4. Four-speed transmission for the drill head and hoist
5. Planetary hoist with manually operated brake and clutch
6. Twin hydraulic cylinders for smooth, adjustable drill feed
7. Maximum upward thrust of 5,580 kgf at 103 bar
8. Swiveling drill head for vertical and inclined drilling
9. Engine-driven variable-displacement vane pump
10. Maximum hydraulic pressure of 103 bar
11. 30 L hydraulic oil tank with integrated controls
12. Hydraulic slide base providing 370 mm drill movement
13. Steel drag skid with three pulleys for borehole-to-borehole movement
14. Reinforced four-pole mast with approximately 5.6 m lifting height
|
Drill Head |
Drilling Capacity |
100m (NW Casing) |
|
Type |
Spindle type, hydraulic feed |
|
|
Drilling Angle |
360° |
|
|
Operation Side |
(R) Right-Standard, (L) Left-Optional |
|
|
Spindle Bore |
92mm(NW Casing) |
|
|
Feed Stroke |
500mm |
|
|
Spindle Speed |
91/340/524rpm, 77rpm (reverse) |
|
|
Spindle Torque |
79/21/14kgf-m, 93kgf-m (reverse) |
|
|
Thrust |
5,580kgf (at hydraulic pressure 105kg/cm²) |
|
|
Chuck |
Manual, 3-jaw type |
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|
Main Clutch |
Single plate, dry disc type |
|
|
Transmission |
Sliding gear, 3 forward & 1 reverse |
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|
Hydraulic |
Pump |
Vane type, variable volume |
|
Delivery Capacity |
25 litre/min. at 1,500 rpm |
|
|
Maximum Pressure |
105kg/cm² |
|
|
Hoist |
Type |
Planetary gear, operated by over-centre cam hand lever |
|
Hoisting Capacity |
1,500kg |
|
|
Rope Speed |
17/65/101m/min. (average) |
|
|
Drum Capacity |
Dia.10mm wire rope x 35m long (or Dia.12mm x 25m) |
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|
Retraction |
Hydraulic |
Slide 370mm |
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Power Unit |
Condensing Diesel Engine |
15HP at 2,400 rpm |
|
Motor |
AC380V, 15kW |
|
|
Mast |
Type |
4-pole, mounted on skid, with bracing at 3 levels |
|
Construction |
Steel pipes Dia.60mm (front) and Dia.48mm (rear) |
|
|
Sheave Size |
Dia. 280mm |
|
|
Weight (mast) |
170kg |
|
|
Dimension (mast) |
1,250mm W x 1,260mm L x 5,750mm H |
|
|
Weight |
With Skid & Engine H16 |
1300kg |
|
Machine Dimension |
W x L x H |
1,140mm x 2,186mm x 1,585mm |
+86-18538591025
sales@leadcrete.com
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