1. Exploratory Drilling Services (PAN India)

MECL undertakes comprehensive subsurface exploration drilling across diverse geological terrains of India. Our capabilities include:
• Core and non-core drilling for coal, lignite, iron ore, copper, phosphorite, REE, and other mineral deposits.
• Deployment of high-capacity hydrostatic, rotary, DTH, and RC drill-rigs.
• High-quality core recovery and strict adherence to national and international exploration standards.
• Expert drilling operations undertaken by experienced field crews and geotechnical teams.

2. Repair & Maintenance Centres (RMC), Hingna & Ranchi
MECL operates two state-of-the-art Repair & Maintenance Centres dedicated to the overhaul and servicing of drilling equipment. Services include:
• Repair and refurbishment of conventional drill-rigs such as VOL-300, RD-100, KME-1000, RD-60, RD-30, Auger rigs, Vacuum Suction rigs, and hydrostatic drill-rigs.
• Maintenance and repair of high-pressure mud pumps including LMPS-125, LMPS-150, GPS-150, GPS-125, and LMPS series.
• Overhaul of auxiliary drilling equipment, trucks, and supporting machinery.
• Testing, calibration, and quality assurance to ensure ready-to-deploy performance for field operations.

3. Central Manufacturing Centre (CMC), Nagpur
The Central Manufacturing Centre supports MECL’s drilling operations through the in-house production of high-quality drilling accessories.
CMC manufactures:
• A complete range of core barrels (NQ, HQ, BQ)
• Various sizes of drill rods (NQ, HQ, BQ)
• Diamond bits, Reaming shells, TC bits, and special-purpose drilling tools
• Adaptors, hoisting plugs, overshot assemblies, and other critical drilling components

CMC ensures precision manufacturing supported by rigorous quality assurance and process monitoring.

The Central Manufacturing Centre (CMC), Nagpur is the backbone of MECL’s engineering and production capabilities. It is equipped with modern, high-precision plant and machinery designed to manufacture and refurbish critical drilling components with stringent quality control.

1. Induction Hardening Plant
A state-of-the-art hardening system used primarily for drill rod end hardening, subs, adaptors, and tool joints.
Key Features:
• High-frequency induction technology for precise heating
• Programmable heating & quenching cycles to achieve uniform hardness
• Improves wear resistance and extends service life of drill rods
• Inbuilt temperature control system for metallurgical consistency
Applications:
• Hardening of male & female tool joints
• Hardening of adaptors and subs
• Surface strengthening of drilling accessories subjected to high torque and rotational stress

2. CNC Turning Centres
Advanced CNC machines used for machining drill rod ends, subs, couplings, hoisting plugs, and precision drilling accessories.
Key Features:
• High accuracy machining (±0.02 mm)
• Multiple tool turrets for complex operations
• Ideal for thread cutting (NW/HW/PW/NQ/HQ/PQ)
• Ensures perfect concentricity and thread matching
Applications:
• Producing tool joints, adaptors, and connectors
• Machining of diamond bit blanks
• Precision threading for drill rod and core barrel components

3. Vertical Machining Centres (VMC)
Multi-axis machining systems used to manufacture intricate components requiring high dimensional accuracy.
Key Features:
• 3-axis/4-axis machining capability
• Automatic tool changers
• Ability to perform milling, drilling, tapping, pocketing & contouring
Applications:
• Manufacturing reaming shells, bit bodies, overshot jaws
• Fabrication of customized drilling tools
• High accuracy machining of complex profiles

4. Conventional Lathe Machines
Heavy-duty and medium-duty lathes used for general-purpose machining tasks.
Key Features:
• Suitable for roughing, turning & finishing
• Can machine long shafts, rod ends & cylindrical jobs
• Equipped for thread cutting and taper turning
Applications:
• Machining core barrels, drill extensions, casing pipes
• Repair work of worn-out components
• Manufacturing and resizing of couplings and connectors

5. Band Saw Cutting Machines
Industrial saws capable of precision cutting of alloy steel, rods, and billets.
Key Features:
• Smooth, burr-free cutting
• High-speed, accurate sizing of raw materials
• Essential for preparing drill-rod blanks
Applications:
• Initial sizing of steel tubes for drill rod manufacturing
• Cutting bars and billets for adaptors, subs & bits

6. Thread Gauges & Measuring Instruments
Precision metrology instruments ensure strict quality control.
Equipment:
• NW, HW, PW, NQ, HQ, PQ thread gauges
• Vernier calipers, micrometers, bore gauges
• Ultrasonic testers for crack detection
• Hardness testers for quality certification
Applications:
• Verification of thread accuracy
• Inspection of drill rod straightness
• Dimensional, hardness & integrity checks

7. Welding, Fabrication & Assembly Units
Dedicated workshops for heavy fabrication.
Capabilities:
• MIG/TIG/Arc welding
• Fabrication of core barrel assemblies, overshots, reaming shells
• Balancing & alignment operations

8. Hydraulic Pressure Testing Setup
Specialized testing unit for drill rods, core barrels & adaptors.
Features:
• Pressure testing up to 3000 PSI
• Leak detection and sealing verification
• Ensures field-ready performance of all manufactured tools

MECL operates an extensive fleet of advanced drilling machinery for diverse geological terrains and exploration depths.

1. Hydrostatic Drill-Rigs
KDR-1500
A high-capacity hydrostatic rig for deep exploration drilling.
Specifications:
• Depth Capacity: 1500 m (NQ)
• Hydraulic rotary head with high torque
• Automatic rod handling (optional)
• Suitable for deep mineral & hard-rock exploration
Applications: REE, copper, deep coal, multi-metal deposits
KDR-1000
Medium-to-deep drilling hydrostatic rig.
Specifications:
• Depth Capacity: 1000 m
• Smooth hydrostatic feed ensuring excellent core recovery
• Ideal for sedimentary as well as hard rock formations
Applications: Coal, lignite, iron ore, multi-metal
KDR-600
Compact and mobile hydrostatic rig for shallow to mid-depth drilling.
Specifications:
• Depth Capacity: 600 m
• Easy maneuverability in hilly & remote regions
Applications: Geotechnical, coal, shallow mineral exploration
DE-740
Proven rotary rig extensively used in coal/lignite exploration.
Specifications:
• Depth Capacity: ~1200 m
• High operational reliability
• Heavy-duty mast & rotary table
Applications: Coalfields, sedimentary basins
DE-710
Mid-range rotary rig suitable for core and non-core drilling.
Specifications:
• Depth Capacity: 900-1000 m
• Stable hydraulic feed
Applications: Exploration of coal, bauxite & limestone

2. Rotary/Mechanical Drill-Rigs
RD-100
Conventional mechanical rig for medium-depth drilling.
Specifications:
• Depth Capacity: 500–600 m
• Durable and easy to maintain
Applications: Coal, limestone, shallow metalliferous
KME-1000
Heavy-duty mechanical rig for deeper exploration.
Specifications:
• Depth Capacity: 1000 m
• Strong mechanical drive, suitable for hard formations
Applications: Hard rock drilling, metalliferous minerals
RD-60
Lightweight, mobile rig for shallow drilling.
Specifications:
• Depth Capacity: 300 m
Applications: Soft formations, preliminary surveys
RD-30
Ultra-light rig for weathered zone and soft soil drilling.
Specifications:
• Depth Capacity: 150–170 m
Applications: Shallow geological & geotechnical studies

3. Specialized Rigs
Vacuum Suction Drill-Rig
For soft/loose formations requiring uncontaminated samples.
Applications: Environmental drilling, soft soil sampling
Auger Drill-Rig
Designed for overburden and weathered rock.
Applications: Engineering/geotechnical surveys, shallow mineral search
RC (Reverse Circulation) Drill-Rig
For fast penetration and chip sampling in hard rock.
Features:
• Dual-wall pipe system
• Rapid sample recovery
Applications: Iron ore, base metals, gold

4. Mud Pumps
GPS-150
Heavy-duty, high-pressure mud pump for deep holes.
Features:
• Large discharge capacity
• Stable mud circulation
GPS-125
Medium-duty pump ideal for 500–700 m drilling.
LMPS-125
Light-duty pump for shallow hole drilling.
LMPS-150
Enhanced flow rate pump for medium-depth operations.