HDD50 - 5 1/4" Pilot Holes - Mincon Group PLC

Overview

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

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

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 Web