Hjg Hbr3a DTH Hammer (BR1)

• Customization: Available
• Customized: Customized
• Standard: JIS, AISI, API
• Model NO.: BR3 HJG drill
• Length: Taper-length
• Type: Twist Drill Bit
• Material: High Carbon Steel
• Usage: Wood Drilling, Well Drilling, Masonry Drilling
• Mining Object: Mining
• Transport Package: Poly Wood
• Specification: SGS ISO
• Trademark: HJG
• Origin: China
• HS Code: 84123100
• Production Capacity: 50000 PC/Year

Product Description

HBR1A, HBR2A and HBR3A series DTH Hammers are designed to operate efficiently at low air pressures and medium air pressures, using BR series bits.

The main features are as follows:
1. The operating air pressures are between 0.7Mpa and 1.75Mpa.
2. Valveless hammers.
3. Simple structure, easy to assemble and to disassemble, long life.
4. Higher impact frequency and faster drilling speed.
5. Lower air consumption and lower oil consumption. A hole can be drilled on the check valve to provide more efficient cuttings discharge.
6. Especially suitable for quarrying.

Length(exclude bit)	Weight(exclude bit)	External Diameter	Bit Shank	Hole Range	Connection Thread
889mm	26.00 kg	Φ82 mm	BR3	Φ90mm _ Φ110mm	API 2 3/8'' Reg
Working Pressure	Impact rate at 0.5 MPa	Recommended Rotary Speed		Air Consumption
				0.7 MPa	1 MPa	1.4 MPa
0.7 - 1.75 MPa	25 Hz	25-40 rpm		4 m³/min	6 m³/min	8 m³/min