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5.0'' QL50 DHD350 Down The Hole DTH Hammers

5.0'' QL50 DHD350 Down The Hole DTH Hammers

  • 5.0'' QL50 DHD350 Down The Hole DTH Hammers
  • 5.0'' QL50 DHD350 Down The Hole DTH Hammers
  • 5.0'' QL50 DHD350 Down The Hole DTH Hammers
5.0'' QL50 DHD350 Down The Hole DTH Hammers
Product Details:
Place of Origin: CHINA
Brand Name: MIROC
Certification: ISO
Model Number: QL50 DTH Hammers
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: Wooden Plate
Delivery Time: 10-25days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 20000pcs per month
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Detailed Product Description
Type: Hammer Plate, With Foot Valve, No Foot Valve Machine Type: Drilling Tool
Material: Carbon Steel Use: Mining, Quarrying, Tunneling, Tunneling, Mining,Quarrying,Water Well
Product Name: DTH Hammer Size: 3'', 4'', 5'', 6'', 8'', 10'', 12 Inch
Hammer Series: CIR, BR, COP,DHD,MISSION,QL,SD,NUMA Color: Green, Golden, Etc.
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Down The Hole DTH Hammers


QL50 DTH Hammers


DHD350 DTH Hammers

5.0'' QL50 DHD350 Series  Down The Hole DTH Hammers


DTH Hammers:

KSQ's Downhole Hammers are simple in structure, easy to assemble and disassemble, also their qualities are reliable and have a long service life. KSQ's has several hammer models suitable for drilling 64mm to 1000mm diameter holes (2-1 / 2 ”~ 39-3 / 8”), and they come with three types: low pressure (5 ~ 7 bar) , the medium pressure (7 ~ 15 bar) and the high pressure (7 ~ 30 bar). KSQ's Down-the-Hole Hammers are mainly produced with the DHD, QL, SF, COP, Mission, SD, BR, CIR and ACD series Stilt type, their diameters range from 2 "to 8" for mining and quarrying. , and 6 "to 32" for water well drilling, oil well drilling, foundation, etc.



1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.

2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.

3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.

4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.

5. Interchangeable with DTH bit and drill pipe


QL50 Hammer Specification:

Drilling Diameter(mm) Hammer Length(mm) External Diameter(mm) Weight(kg)
φ135-φ155 1156(without bit) 125 73(without bit)
Working Pressure(Mpa) Air Consumption(m³/min)
1.3-2.3 1.0Mpa: 9m³/min 1.8Mpa: 15m³/min 2.4Mpa: 23m³/min
Impact rate at 17 bar Connection Rod Thread Recommended Rotation Speed Bit Shank
25HZ API 3 1/2'' Reg
API 2 7/8'' Reg
25-40r/min. QL50 (with foot valve


5.0'' QL50 DHD350 Down The Hole DTH Hammers 0

Contact Details
KSQ Technologies (Beijing) Co. Ltd

Contact Person: Mr. Yingkai Zhang

Tel: +86 18501231988

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