DHD360 COP64 Bit Shank DTH Hammer

DHD360 COP64 Bit Shank DTH Hammer

Basic Info Product name: DHD 360 - HD65 DTH Hammer Outer diameter: 148mm Bit shank: COP64, DHD360, HD65 Drilling hole range: 165-190mm Connection thread: API 3 1/2" Working pressure: 10-25 Bar Application: Geothermal Drilling, Water well, Blast hole, Quarrying Packing: Plywood case, pallet, Carton, Wooden box. Country Origin: Changsha, Hunan, China Assorted Product Description

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Product Details

Selecting the Right Hammer

The optimum range of hole size for blast hole drilling with DTH is 90 mm to 254 mm (3 ½”–10″). Smaller blast holes are generally drilled using tophammer, and larger holes generally use rotary machines.

In other applications, like foundation drilling, DTH hammers can be used with single bit in hole sizes up to . 750 mm (30″). With multiple hammer units CD (Cluster drills) drill holes up to 70″ or 1778 mm.

As a rule of thumb, the smallest hole diameter a DTH hammer can drill is its nominal size. A 4 inch hammer will drill a 4 inch (102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole diameter reduces, airflow is restricted. Maximum hole size for production drilling is the nominal hammer size plus 1 inch, so for a 4 inch hammer the maximum hole size is 5 inch (127–130 mm).

Choosing the right hammer is largely determined by hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for cuttings to evacuate the hole.

Basic Info

Brand Name :Black Diamond
Model Number :HD65A 
Certification :ISO9001:2008
Place of Origin :Hunan, China (Mainland)
MOQ :Negotiable
Price :Negotiable
Payment Terms :L/C, T/T, Western Union
Delivery Time :5-8 work days
Packaging Details :Carton packaging and wooden box packing
Length (except head) :1238mm
Hole Range (mm) :165-190mm
Bit Shank :HD65A, COP64, DHD360
Connection thread :API 3 1/2" REG
Material :Alloy Steel
Button shape :Spherical/Ballistic/parabolic/sharp/falt bottons

Asorted Bits Specifications:

ModelBit DiameterAir HolesQty*Button Dia(mm)Weight

Product Description


Product Code

Product codes are a valuable tool to describe and identify the product. In the code structure we have tried to describe the product features with an alphanumeric system and not always 100% logical, but with the attached key you will be able to find the product you are looking for or alternative products.

Air consumption

Why choose us?

1)We have more than 20 years of researching,developing, manufacturing  and exporting

high quality rock drilling equipments and penumatic tools to the global market.

Now we have subsidiary in Perth, Australia and Quebec, Canada

2)High quality compatible with Sandvik, Atlas Copco, Ingersoll Rand etc...

3)Unbeatable price

4)Excellent service.

5.Which port do you shipping from?

We usually ship container from Shanghai port.Guangzhou port is available too.

6.Can you accept OEM & ODM ?

Yes, both of them are acceptable.

7.What is your minimum order quantity?

Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity.

8.What is your payment term?

We usually accept T/T, L/C at sight, West union and in cash, other payment terms are negotiable.

9.How about the delivery time?

No matter how big your order is, we can make sure the delivery time within 30 days.


Length: 1263.5mm

Weight (without bit): 112.36kg

External diameter: 148mm

Bit shank: COP64, DHD 360

Recommended drill hole range: 165-190mm

Connection thread: 3 1/2" reg 

Recommended working pressure: 10 - 25 Bar

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