DHD350 5 Inch Down The Hole Hammer with API 2 3/8 REG Connection Corrosion Resistant Carbon Steel Construction

Price Negotiable

Price: $3-$300

MOQ: 1 Piece

Delivery Time: 10-15 days

Brand: MTH

Product Description

DHD350 5Inch Down The Hole Hammer Anticorrosive

DHD350 5 Inch Down The Hole Hammer

"DTH" is the short for "Down The Hole" and sometimes it is also called "RAB" in some markets, "RAB" is short for "Rotary Air Blasting".

Application

Be used for drilling in mining, quarrying, exploration, water-well, geothermal, and construction/geotechnical projects

Specifications

Technical Data	Value 1	Value 2	Value 3	Value 4	Value 5
Length (Without Bit)	930mm	1030mm	1214mm	1160mm	1248mm
Weight (Without Bit)	25.00 kg	39.00 kg	76.50 kg	72.50 kg	100.00 kg
External Diameter	82mm	99mm	126mm	126mm	142/144/146/148mm
Bit Shank	DHD3.5	COP44/DHD340	COP54/DHD350R	ND55C/DHD350Q	COP64/DHD360
Hole Range	90-110 mm	110-135 mm	135-155 mm	135-155 mm	155-190 mm
Connection Thread	API 2 3/8"Reg	API 2 3/8"Reg	API 2 3/8"Reg API 3 1/2"Reg API 2 7/8"Reg	API 2 3/8"Reg API 3 1/2"Reg API 2 7/8"Reg	API 3 1/2"Reg
Working Pressure	1.0-1.5 Mpa	1.2-2.0 Mpa	1.3-2.3Mpa	1.3-2.3 Mpa	1.5-2.5 Mpa
Impact Rate at 17 Bar	28HZ	27HZ	25HZ	25HZ	23HZ
Recommended Rotation Speed	25-40 r/min	25-40 r/min	20-35 r/min	20-35 r/min	20-30 r/min
Air Consumption	1.0Mpa:4.5 m3/min 1.5Mpa:9.0m3/min	1.0Mpa:6m3/min 1.8Mpa:10m3/min	1.0Mpa:9 m3/min 1.8Mpa:15m3/min	1.0Mpa:9m3/min 1.8Mpa:15m3/min	1.0Mpa:10 m3/min 1.8Mpa:20m3/min

Package

Wooden case

Features

Simple and reasonable design, easy to assemble and disassemble, low problem rate.
Low air consumption, smooth drilling, maximum impact power, high penetration rate.
Multiple precise heat-treatment with all hammer parts to provide longest lifespan under roughest working conditions.

Product Images