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HDD50 - 5 1/4" Pilot Holes

  • Overview
  • Specifications
  • Systems
  • System Components
  • Parts list
  • Lubrication
  • Documents

Overview

HDD50 Pilot Hammer Overview2
The Mincon HDD50 Hard Rock Pilot Hammer is designed around proven technology to perform at the top end of the performance scale compared to other tools on the market. While providing the most complete range of pilot hammers, Mincon also provides their world class design and technology including:

Key Features and Benefits

  • Dual steering point design incorporating slanted drill bit and 2° bent sub provides more responsive steering capabilities while transitioning in and out of rock formations.
  • High frequency hammer cycle transmits less vibration that can be detrimental to sensitive electronics. Rock formations fracture into smaller pieces which are easier to flush out of the bore hole. Less Stress Transmits to pipe joints and gearbox assembly reducing maintenance requirements to drill. Provides the most effective steering in any pneumatically powered HDD system.
  • High pressure/high volume compressed air powers drilling operations and requires minimal torque and feed pressure loads on drill machine increasing overall life of drill.
  • Shorter body design compared to competitive models allows for easier steering in the bore hole and less rotational stresses on hammer body.
  • Existing locating electronics (DCI, Subsite, or WIRELINE) can be used with no additional cost to the contractor.
  • Support Station delivers compressed air mixed with a water/polymer (5-9 gal/min) and rock drill oil (2-4 pints/hr) to operate the drilling cycle resulting in minimal environmentally friendly clean up. Can be used on environmentally sensitive locations using Mincon Envirosafe RDO biodegradable rock drill oil.

Specifications

HDD50 Pilot Hammer Specifications
Specifications Metric Imperial
Hammer Outside Diameter 103mm 4.06"
Hammer Length (Sonde Backhead Shoulder to Chuck) 2007mm 79"
Backhead Spanner Flat Size 96mm 3.78”
Drill Bit Shank Type HDD50
Pilot Bit Size 133mm 5.25"
Hammer Weight (Less Bit) 81.8Kgs 180Lbs
Piston Weight 7.7Kgs 17Lbs
Bent Sub to Wear Sleeve Stand Off 0.75mm 0.030”
Make up Torque 4050-5425 NM 3000-4000 FT Lbs
Recommended Minimum Air Package (<250ft Bore Length) 354 l/s @ 20.7 Bar 750 cfm @ 300 psi
Recommended Minimum Air Package (>250ft Bore Length) 425 l/s @ 24.1 Bar 900 cfm @ 350 psi

Systems

Item Description Part Number
  Mincon HDD50 Hard Rock System with Support Station MHDD50AS01
1 Mincon HDD50 Hard Rock Hammer Crate MHDD50AS11
2 Mincon Support Station Complete M103 072 01

Item Description Part Number
  Mincon HDD50 Hard Rock System with Remote Control Oiler  MHDD50AS02
1 Mincon HDD50 Hard Rock Hammer Crate MHDD50AS11
2 Mincon Remote Control Oiler Crate M103 072 03

Item Description Part Number
  Mincon HDD50 Hard Rock System with Manual Control Oiler MHDD50AS03
1 Mincon HDD50 Hard Rock Hammer Crate MHDD50AS11
2 Mincon Manual Oiler Crate M103 072 00

System Components

Item Description Part Number
  Mincon HDD50 Hard Rock Hammer Crate  MHDD50AS11
1 Mincon HDD50 Sonde Housing MHS401AS01
2 Mincon HDD50 Hammer MHD401AS01
3 DCI 15" Sonde Carriage MN585
4 Sonde Torque Wrench MN553
5 Sonde Line up Tool MN551
6 Service Kit (Hammer) MHD426SK01
7 Service Kit (Sonde Housing) MHS426SK01
8 Plusco Thread Sealant MN730
9 Drill Bit x 2 52HD50SDIRD
10 HDD50 Timing Shim (0.015") x 2 MN05015
11 HDD50 Timing Shim (0.030") x 2 MN05030
12 HDD50 Timing Shim (0.060") x 2 MN05060

Item Description Part Number
  Mincon Support Station Crate  M103 072 01
1 Mincon Support Station M103 036 90
2 20 Foot x 2" 1000 PSI High Pressure Hose with Hammer Lock Couplings M103 038 43
3 30 Foot x 2" 1000 PSI High Pressure Hose with Hammer Lock Couplings M103 038 44
4 40 Foot x ¾" Water Hose with ¾" Camlock couplings M103 038 45
5 Safety Whip Checks x 4 M103 020 71

Item Description Part Number
  Mincon Remote Control Oiler Crate M103 072 03
1 Mincon Remote Control Oiler M103 072 04
2 20 Foot x 2" 1000 PSI High Pressure Hose with Hammer Lock Couplings M103 038 43
3 30 Foot x 2" 1000 PSI High Pressure Hose with Hammer Lock Couplings M103 038 44
4 Safety Whip Checks x 4 M103 020 71

Item Description Part Number
  Mincon Manual Oiler Crate M103 072 00
1 Mincon Manual Oiler M103 072 02
2 20 Foot x 2" 1000 PSI High Pressure Hose with Hammer Lock Couplings M103 038 43
3 30 Foot x 2" 1000 PSI High Pressure Hose with Hammer Lock Couplings M103 038 44
5 Safety Whip Checks x 4 M103 020 71

Parts list

HDD50 EXPL
Item # Part Number Description
MHS401AS01 Mincon HDD50 Sonde Housing
1 MHS401BH02 Sonde Housing Backhead (2 3/8" API Reg. Pin)
2 MHS409DP02 Air Diverter Plug (1/8" Orifice)
3 MHS402SS01 Sonde Spacer
4 MHS305LR01 Compression Ring
5 MN585 Sonde Carriage (Not Included)
6 MHS421OR01 O Ring
7 MHS405DV01 Diverter
8 MHS421OR01 O Ring
9 MHS406SL01 Sealing Sleve
10 MHS421OR01 O Ring
11 MHS404SH01 Sonde Housing Sleeve
12 MHS421OR01 O Ring
13 MHS407CG01 Carriage Guide
14 MHS421OR01 O Ring
15 MHS403SR01 Seating Ring
16 MHS408LP01 Locating Pin
     
  MHS426SK01 Service Kit
  MHS409DP01 Air Diverter Plug (Solid)
  MHS425OK01 O Ring Kit (Items 6, 8, 10, 12, 14)
     
   MHD401AS01  Mincon HDD50 Hammer
 17 MHD401BH02 Bent Sub
18 MB506CH01 Choke Blank
19  MB502CV01 Check Valve
20  MB503SP01 Spring
21 MD404SM01 Steel Make up Ring
22  MD405LR01 Lock Ring
23   MD407DR03  Air Distributor
24  MD421OR01 O Ring
25 MD422OR01 O Ring
26 MD409SR01 Seating Ring
27 MD408IC02 Inner Cylinder
28 MD410PN04 Piston
29 MHD411WS02 Wear Sleeve
30 MD412PR01 Piston Retaining Ring
31 MHD413BB01 Aligner
32 MHD413BR01 Bit Retaining Ring
33 MHD414CK01 Chuck HDD50
34 52HD50SDIRD Drill Bit
     
  MHD426SK01 Service Kit
  MB506CH01 Choke Blank
  MB506CH02 Choke 1/8" (3.2mm)
  MB506CH03 Choke 3/16" (4.8mm)
  MB503SP01 Spring
  MHD425OK01 O Ring Kit (Items 24, 25)

Lubrication

DTH hammers must receive a constant supply of proper rock drill oil to protect the internal components and to provide a good air seal between the hammer's running surfaces for efficient drilling. Mincon recommends the use of Mincon Envirosafe® Rock Drill Oil (RDO) to maintain optimal performance and extend the life of the internal components. The correct consumption of oil is dependent upon the air volume and conditions. Please refer to the lubrication graph below for recommendations. When drilling in wet conditions the normal amount should be doubled. There should be visual evidence of oil around the drill bit shank and within the tube joints when changing tubes.

If using petroleum based rock drill oils, the recommended grade of oil is dependent on the ambient temperature and the operating pressure. As a rule of thumb, ISO320 grade rock drill oil should be used whenever possible as the hammer is a high frequency tool, however, where the pump cannot pump the oil in colder conditions, a lower grade of oil can be used as per the graph below.

Mincon Oil Grade Chart WebMincon Oil Consumption Chart WebMincon Envirosafe RDO

Documents

Mincon PLC HDD Pilot Range IconMincon HDD Pilot Hammer Range Brochure Mincon HDD50 Service Manual IconMincon HDD50 Operation and Service Manual HDD Product Catalog Front Page IconMincon HDD Product Catalog

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About Mincon

Mincon Group PLC was founded in 1977 in Shannon, Ireland. Mincon develops, manufactures, and distributes a range of precision engineered hard-rock drilling tools for a variety of applications, including mining, exploration, water well, geothermal, construction, horizontal directional drilling, oil-gas and energy.

Mincon has earned its reputation as The Driller’s choice by working closely with customers to inform the continuous development and improvement of its world-class products.

Contact Info

Mincon Group PLC
Smithstown Industrial Estate 
Shannon 
Co. Clare 
Ireland

Tel: +353 (61) 361-099
Fax: +353 (61) 361-808

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