4.5" 115mm DTH Hammer Button Bits for Water Well Drilling with 1.8-2.5 MPa Pressure Range

Price Negotiable
Price: USD800-3000/set
MOQ: 1 set
Delivery Time: 15-30 days
Product Description
4.5" 115mm DTH Hammer Button Bits for Water Well Drilling
Professional 4.5" (115mm) down-the-hole hammer button bits designed for efficient water well drilling operations with large air output capabilities.
Product Overview
Our company specializes in drilling rigs and drilling components with decades of manufacturing experience. We offer comprehensive drilling solutions including DTH drilling rigs, water well drilling rigs, oil well drilling rigs, and piling drilling rigs in various configurations.
DTH Hammer Pressure Classification
  • Low Air Pressure: 0.5-0.7 MPa
  • Middle Air Pressure: 0.7-1.8 MPa
  • High Air Pressure: 1.8-2.5 MPa
Key Advantages
  • Non-Blocking Design: Proven extremely low blocking rate during operation
  • High Efficiency: Larger impact frequency and torque for faster penetration, improving efficiency by 10% compared to alternatives
  • Extended Service Life: Anti-friction and intensified surface treatment technology enables deep-hole drilling up to 5000 meters
  • Superior Cleaning: Large air output specifically designed for water well applications, effectively flushing cuttings in deep hole drilling
  • Wide Compatibility: Compatible with DHD, QL, and Mission hammer systems
4.5 inch DTH hammer button bits for water well drilling applications
DTH Hammer 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 Φ64-Φ76mm, Φ70-Φ90mm, Φ90-Φ110mm 0.7-1.75 MPa 0.7 MPa: 4.5 m³/min
1.0 MPa: 4 m³/min
1.4 MPa: 5 m³/min
3" hammers DHD3.5, COP32/COP34, M30 API 2 3/8" Reg Φ90-Φ110mm 1.0-1.5 MPa
1.0 MPa: 4.5 m³/min
1.5 MPa: 9 m³/min
4" hammers DHD340, COP44, QL40, SD4, M40 API 2 3/8" Reg Φ105-Φ130mm 1.0-2.5 MPa
1.0 MPa: 6 m³/min
1.8 MPa: 10 m³/min
2.4 MPa: 15 m³/min
5" hammers DHD350, COP54, QL50, SD5, M50 API 2 3/8" Reg, API 3 1/2" Reg Φ130-Φ156mm 1.0-2.5 MPa
1.0 MPa: 9 m³/min
1.8 MPa: 15 m³/min
2.4 MPa: 23 m³/min
6" hammers DHD360, COP64, QL60, SD6, M60 API 3 1/2" Reg Φ152-Φ203mm 1.0-2.5 MPa
1.0 MPa: 10 m³/min
1.8 MPa: 20 m³/min
2.4 MPa: 28.5 m³/min
8" hammers DHD380, COP84, QL80, SD8, M80 API 4 1/2" Reg Φ200-Φ279mm 1.0-2.5 MPa
1.0 MPa: 15 m³/min
1.8 MPa: 26 m³/min
2.4 MPa: 34 m³/min
10" hammers SD10, NUMA100 API 6 5/8" Reg Φ254-Φ330mm 1.0-2.5 MPa
1.0 MPa: 22 m³/min
1.8 MPa: 40 m³/min
2.4 MPa: 55 m³/min
12" hammers DHD1120, SD12, NUMA120, NUMA125 API 6 5/8" Reg Φ305-Φ381mm 1.0-2.5 MPa
1.0 MPa: 30 m³/min
1.8 MPa: 56 m³/min
2.4 MPa: 78 m³/min
DTH hammer components and assembly diagram showing internal structure
DTH Hammer Bit Specifications
Our DTH bits are manufactured using high-quality raw materials and advanced technology, undergoing strict quality inspection processes.
  • High and low air pressure down-the-hole drill bits
  • Low air pressure hole diameter: 65-220mm
  • High air pressure hole diameter: 85-305mm
  • Face types: drop center, concave, convex, double gauge, flat
  • Compatible with XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Digger and other DTH hammer systems
Hammer Inch Bits Diameter Shank
1" 64mm-70mm (2 1/2"-2 3/4") BR1
2" 70mm-95mm (2 3/4"-3 3/4") MACH20/BR2
3" 90mm-102mm (3 1/2"-4") COP32/COP34/MACH303, M30/DHD3.5/BR3
4" 105mm-152mm (4 1/8"-6") COP44/DHD340/MACH44, SD4/M40/QL40
5" 133mm-165mm (5 1/4"-6 1/2") COP54/DHD350R/MACH50, SD5/M50/QL50/BR5
6" 152mm-254mm (4 1/8"-10") COP64/DHD360/SD6, M60/QL60/Bulroc BR6
8" 203mm-330mm (8"-13") COP84/DHD380/SD8, QL80/M80
10" 254mm-380mm (10"-15") SD10, NUMA100
12" 305mm-508mm (12"-20") DHD1120/SD12, NUMA120/NUMA125
Contact us for information about 12-30 inch bits and custom specifications.
DTH hammer button bits close-up showing carbide button placement and wear patterns
Contact Information
Dongying OilMan Machinery Equipment Co.
Address: North Two Road, Dongying City, Shandong Province, China
Mobile/WhatsApp/WeChat: +86 13475294399
Email: christal@oilmancn.com

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Dongying Oilman Machinery Equipment Co.,Ltd.
Location www.oilmanchina.com
Contact Person Christal

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