10inch Stone Quarrying Down The Hole DTH Hammer for Deep Well Drilling and Mining

• Certification：ISO 9001:2000
• Standard：GB, GOST
• Surface Treatment：Spray-Paint
• Manufacturing Process：Forging
• Material：Alloy Steel
• Thread：API 4 1,2" Reg, API 5 1,2" Reg, API 6 5,8" Reg

=== Base Info ===

• Model NO.：SD10, NUMA100
• Bit Diameter：254-330mm
• Color：on Request
• Condition：100% New
• Delivery：25-30days
• MOQ：1PCS
• After Sale Service：Yes
• OEM/ODM：Yes
• 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 thread1502mm290kgΦ225mmSD10Φ254-Φ330API 4 1/2" RegWorking 
   pressureImpact rate at 
   1.7MPaRecommended  
   rotation speedAir consumption1.0MPa1.8MPa2.4MPa1.0-2.5MPa18Hz15-25r/min22m^3/min40m³/min55m^3/min Length (no bit)Weight (no bit)External diameterBit shankHole rangeConnection thread1510mm288kgΦ226mmNUMA100Φ254-Φ330API 6 5/8" RegWorking 
   pressureImpact rate at 
   1.7MPaRecommended  
   rotation speedAir consumption1.0MPa1.8MPa2.4MPa1.0-2.5MPa18Hz15-25r/min22m^3/min45m³/min60m^3/min