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professional Down The Hole Air Pressure Hammer 4'' for Hard Rock Drilling

professional Down The Hole Air Pressure Hammer 4'' for Hard Rock Drilling

Brand Name:JCDRILLS
Certification:ISO,CE
Model Number:HD45
Minimum Order Quantity:5pcs
Delivery Time:In stock or as order quantity
Payment Terms:T/T, L/C, D/P, Western Union, MoneyGram
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Location: Beijing Beijing China
Address: Room 1407,BuildingA,No.13,Beiyuan Road,Chaoyang District,Beijing,China
Supplier`s last login times: within 1 hours
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Product Details

4'' Down The Hole Air Pressure Hammer for Hard Rock Drilling with COP44 / DHD 340 / QL 40 shank


Application

With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material.


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

Characteristics

Hammer shank available:

1. BR shank series: BR1, BR2, BR3;
2. Cop shank series: Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;
3. DHD shank series: DHD3.5, DHD340,DHD350, DHD360, DHD380;
4. SD shank series: SD4, SD5, SD6, SD8, SD10, SD12, SD15, SD18;
5. Mission shank series: Mission40, Mission50, Mission 60, Mission 80;
6. QL shank series: QL30, QL40, QL50, QL60, QL80;
7. NUMA shank series: NUMA120, NUMA125, NUMA180, NUMA240;
Other hammer shanks can be available according to customer's drawing or samples.

Specification

 Item DescriptionWeightParts No.
1.Top Sub6.5HD4501
2.O-Ring of Top Sub0.01HD4502
3.Check Valve0.42HD4503
4.Spring0.04HD4504
5.Compression Buffer0.04HD4505
6.Air Distributor2.2HD4506
7.Internal Cylinder2.3HD4507
8.Piston9HD4508
9.External Cylinder15HD4509
10.O-Ring of stop ring0.01HD4510
11.Stop Ring0.2HD4511
12.Drive Chuck3.5HD4512
13.Drill Bit9HD4513
According to customer's requirement,the top sub can be made into two spanners,and put protection buttons,An air controllinghole can be drilled on the check valve to provide more efficient cuttings discharge.

Length

(Less bit)

Weight

(Less bit)

External DiameterBit ShankHole RangeConnection Thread
1030mm39.0kg99mmCOP44 DHD340110-135mmAPI 2-3/8''REG
Working PressureImpact rate at 0.5 MpaRecommended Rotation SpeedAir Consumption
1.2-2.5Mpa27HZ25-40r/min1.0Mpa1.8Mpa2.4Mpa
6m3/min10m3/min15m3/min

Packing& Delivery

Service

In our after sales service system, We establish perfect control system strictly according to ISO-9000 series, in this system, technology date and problem solve solution and preventive measures will be provided in any maintain project, all the spare parts will be used in new OEM products with installation instructions, packing list, manufacturer's instruction, qualification and Warranty certificate.


We provide "one equipment & one case, endless service, namely the after sales service begin from the order confirmation, last for the working life of the equipment.

Purchase Process


China professional Down The Hole Air Pressure Hammer 4''  for Hard Rock Drilling supplier

professional Down The Hole Air Pressure Hammer 4'' for Hard Rock Drilling

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