Bulroc Br1 Br2 Br3 and 3inch Medium Air Pressure Down The Hole DTH Drill Hammer

• Certification：ISO 9001:2000
• Standard：GB, GOST
• Surface Treatment：Spray-Paint
• Manufacturing Process：Forging
• Material：Alloy Steel
• Thread：API 2 3,8" Reg

=== Base Info ===

• Model NO.：HD35, IR3.5, COP34, M30, QL30, BR3, BR1, BR2
• Bit Diameter：64-115mm
• Delivery：25-30days
• MOQ：1PCS
• After Sale Service：Yes
• OEM/ODM：Yes
• Condition：100% New
• Color：on Request
• Transport Package：Plywood Box
• Trademark：SANSUNG
• Origin：China
• HS Code：82071990
• Production Capacity：50000 PCS,Year

=== Description ===
Length  (no bit)Weight (no bit)External  diameterBit shankHole rangeConnection thread930mm24.4kgΦ82mmDHD3.5Φ90-Φ105API 2 3/8" Reg

Working

pressure

Impact rate at

1.5MPa

Recommended

rotation speed

Air consumption1.0MPa1.5MPa1.0-1.5MPa28Hz25-40r/min4.5m^3/min9.0m^3/min

 

 

Length  (no bit)Weight (no bit)External  diameterBit shankHole rangeConnection thread888mm25.1kgΦ82mmMission30Φ90-Φ105API 2 3/8" Reg

Working

pressure

Impact rate at

1.5MPa

Recommended

rotation speed

Air consumption1.0MPa1.5MPa1.0-1.5MPa25Hz25-40r/min3.8m^3/min7.5m^3/min

 

Length  (no bit)Weight (no bit)External  diameterBit shankHole rangeConnection thread930mm24.5kgΦ82mmIR3.5
   Cop34Φ90-Φ105API 2 3/8" Reg

Working

pressure

Impact rate at

1.5MPa

Recommended

rotation speed

Air consumption1.0MPa1.5MPa1.0-1.5MPa28Hz25-40r/min4.5m^3/min9.0m^3/min 

BR1,BR2,BR3 series Bulroc DTH Hammers are designed to operate efficiently at low air pressure and medium air pressure, using BR series DTH bits.

The main features are as follows:

1. The operating air pressure 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 cutting discharge.

6. Especially suitable for quarrying.
 

25-40r/min4.0m^3/min6.0m^3/min8.0m^3/min