2018 Hjg Newest HD 55 Rock Drilling DTH Hammers

• Type: Air Drill
• Usage: Paint Spray Gun, Washing Gun, Hopper Gun, Garden Gun
• Working Style: Rotary Type
• Air Wrench Type: Impact wrench
• Pneumatic Drill Range: Mining
• Brand: Hjg
• Model NO.: HD 55
• Degree of Automation: Automatic
• Screwdriver Startup Mode: Under pressure
• Condition: New
• Customized: Customized
• Mining Object: Mining
• Transport Package: Poly Wood
• Specification: SGS ISO
• Trademark: HJG
• Origin: China
• HS Code: 84123100
• Production Capacity: 50000 PC/Year

Product Description

We are leading manufacturer specialized in researching and manufacturing rock drilling equipment and pnuematic tools in China. 

It has the following advantages:
1. Valveless air distribution. More reliable.
2. Simple design of the piston, long life.
3. More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, longer 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 by multi-step thread.

Products specifications:

 

Hammers	Bit Shank	Connection Thread	Suitable bit	Working pressure	Air consumption
1-3" Middle-low pressure DTH hammers	BR1 BR2 BR3	RD40 box RD50 box API 2 3/8" Reg	¢64-¢76mm ¢70-¢90mm ¢90-¢110mm	0.7-1.75Mpa 0.7-1.75Mpa 0.7-1.75Mpa	0.7Mpa	4.5m3/min
					1.0Mpa	4m3/min
					1.4Mpa	5m3/min
3" hammers	DHD3.5 COP32/COP34 M30	API 2 3/8"Reg	¢90-¢110mm	1.0-1.5Mpa	1.0Mpa	4.5m3/min
					1.5Mpa	9m3/min
4" hammers	DHD340 COP44 QL40 SD4 M40	API 2 3/8"Reg	¢105-¢130mm	1.0-2.5Mpa	1.0Mpa	6m3/min
					1.8Mpa	10m3/min
					2.4Mpa	15m3/min
5" hammers	DHD350 COP54 QL50 SD5 M50	API 2 3/8"Reg/API 3 1/2"Reg	¢130-¢156mm	1.0-2.5Mpa	1.0Mpa	9m3/min
					1.8Mpa	15m3/min
					2.4Mpa	23m3/min
6" hammers	DHD360 COP64 QL60 SD6 M60	API 3 1/2"Reg	¢152-¢203mm	1.0-2.5Mpa	1.0Mpa	10m3/min
					1.8Mpa	20m3/min
					2.4Mpa	28.5m3/min
8" hammers	DHD380 COP84 QL80 SD8	API 4 1/2"Reg	¢200-¢279mm	1.0-2.5Mpa	1.0Mpa	15m3/min
					1.8Mpa	26m3/min
					2.4Mpa	34m3/min
10" hammers	SD10 NUMA100	API 6 5/8"Reg	¢254-¢330mm	1.0-2.5Mpa	1.0Mpa	22m3/min
					1.8Mpa	40m3/min
					2.4Mpa	55m3/min
12" hammers	DHD1120 SD12 NUMA120 NUMA125	API 6 5/8"Reg	¢305-¢381mm	1.0-2.5Mpa	1.0Mpa	30m3/min
					1.8Mpa	56m3/min
					2.4Mpa	78m3/min