3.5inch API REG Thread High Air Pressure DTH Hammer for Water Well Drilling 90 - 110 mm Dia

Application                                                                                                                                                         

It is a kind of valveless high air pressure DTH hammer with foot valve.

The rock hammer has the fellow advantages

1: Valveless air distribution. more reliable.

2. The rock impacter are simple design of the piston, long life.

3. More efficient energy transfter,faster drilling speed, lower air consumption and lower oil consumption.

4. Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.

5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected multi-step thread.

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 Description		Weight	Parts No.
		1.Top Sub		4.2	HD3501
		2.O-Ring of Top Sub		0.01	HD3502
		3.Check Valve		0.2	HD3503
		4.Spring		0.02	HD3504
		5.Compression Buffer		0.02	HD3505
		6.Air Distributor		1.4	HD3506
		7.Internal Cylinder		1.5	HD3507
		8.Piston		5.6	HD3508
		9.External Cylinder		9.9	HD3509
		10.O-Ring of stop ring		0.01	HD3510
		11.Stop Ring		0.15	HD3511
		12.Drive Chuck		1.9	HD3512
		13.Drill Bit		5	HD3513

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                                                                                                                                              ​