π¦ DTH Drill Bits
Kaishan K40 DTH Drill Bits for Mining & Water Well
Model: K40
Kaishan K40 DTH drill bits are premium down-the-hole button bits engineered for demanding mining, quarrying and water well drilling. Designed with high-grade tungsten carbide buttons and a robust alloy steel body, the K40 delivers exceptional penetration rates and long service life in hard and abrasive rock formations. Compatible with standard DTH hammers and drill pipes, these bits feature optimized flushing holes for efficient cuttings removal and reduced wear. Available in various diameters and face designs, the K40 series ensures stable performance, low total drilling cost and reliable operation across diverse drilling conditions. Ideal for blast hole drilling, geothermal projects and water well construction, Kaishan K40 bits are the trusted choice for professionals seeking durability and efficiency.
Best For
Technical Specifications
| Model | K40 |
| Type | DTH Button Bit |
| Size | 76mm - 152mm (3" - 6") |
| Application | Mining, quarrying, water well drilling, construction |
| Material | Alloy steel body with tungsten carbide buttons |
| Weight | 2.5kg - 25kg (depending on size) |
| Packing | Wooden case or carton, palletized for bulk |
Product Details
Technical Selection
Key parameters for matching this machine to your job. Send us your hole diameter, depth and rock condition and our engineers will confirm the right configuration.
Weight
2.5kg - 25kg (depending on size)
Model
K40
Type
DTH Button Bit
Size
76mm - 152mm (3" - 6")
Application
Mining, quarrying, water well drilling, construction
Material
Alloy steel body with tungsten carbide buttons
Packing
Wooden case or carton, palletized for bulk
Not sure this model fits? Tell us the hole diameter and depth β we will confirm the matching rig, compressor and hammer.
Check with an engineerKey Advantages
High-grade tungsten carbide buttons for superior wear resistance
Robust alloy steel body for high impact toughness
Optimized flushing holes for efficient cuttings removal
Compatible with standard DTH hammers and drill pipes
Available in multiple diameters and face designs
Reduces drilling cost per meter and downtime
Applications
π Mining Blast Hole Drilling
Used in open-pit and underground mines for drilling blast holes in hard rock.
Solution: Kaishan K40 bits deliver fast penetration and long life, reducing drilling costs and improving productivity.
π Water Well Drilling
Ideal for constructing water wells in various geological formations.
Solution: The K40 ensures stable drilling and efficient cuttings removal, resulting in clean and straight wells.
π Quarrying and Aggregate Production
Applied in quarries for drilling blast holes in granite, limestone and other abrasive rocks.
Solution: With wear-resistant carbide buttons, the K40 maintains high performance and reduces bit replacement frequency.
π Geothermal and Exploration Drilling
Suitable for geothermal heat pump systems and mineral exploration drilling.
Solution: The K40 provides reliable performance in varied formations, ensuring accurate sample recovery and efficient operation.
Similar Models in This Category
This model is unique in its series β here are similar models from the same category.
| β | Model | Model | Type | Size | Application | Material | Inquire |
|---|---|---|---|---|---|---|---|
| K40This model | K40 | DTH Button Bit | 76mm - 152mm (3" - 6") | Mining, quarrying, water well drilling, construction | Alloy steel body with tungsten carbide buttons | Get a Quote | |
| K10 | K10 | DTH Drill Bit (Down-the-Hole Button Bit) | 90β130 mm diameter (customizable) | Mining, quarrying, water well drilling, construction | Alloy steel body with tungsten carbide buttons | Get a Quote | |
| K3 | K3 | DTH Drill Bit | 76mm - 152mm | Mining, Quarrying, Water Well Drilling | Alloy Steel with Carbide Buttons | Get a Quote | |
| K30 | K30 | DTH Button Bit | 76mm - 152mm (customizable) | Mining, Quarrying, Water Well, Construction | Alloy Steel Body with Tungsten Carbide Buttons | Get a Quote | |
| K4 | K4 | DTH Drill Bit | Ξ¦110 mm (standard); other sizes available | Mining, water well drilling, quarrying, construction | Alloy steel body with carbide button inserts | Get a Quote | |
| K5 | K5 | DTH Button Bit | 130 mm - 152 mm diameter | Mining, quarrying, water well drilling, foundation engineering | Alloy steel body with tungsten carbide buttons | Get a Quote | |
| K50 | K50 | DTH Drill Bit (Button Bit) | 5 inch (127 mm) shank, 130-140 mm diameter | Mining, quarrying, water well drilling, construction | Alloy steel body with tungsten carbide buttons | Get a Quote | |
| K6 | K6 | DTH Button Bit | 76mm - 152mm (3" - 6") | Mining, Quarrying, Water Well Drilling, Construction | Alloy Steel Body with Tungsten Carbide Buttons | Get a Quote |
Compare 2β3 models? Tick the boxes and send them together β we will quote each one for you.
Tip: select multiple models and click βInquire Allβ β the selected models are added to the quote form automatically, so you get a faster quotation.
Not sure which model fits your project? Send us your working pressure and air demand β our engineers will recommend the right one.
Main Components
- Alloy steel body
- Tungsten carbide buttons
- Flushing holes
- Bit shank
- Face design (flat or convex)
- Splines
- Retaining ring
- Chuck
Working Principle
DTH (Down-The-Hole) drill bits operate at the bottom of the drill string, directly impacting the rock with high-frequency percussion. The bit is connected to a DTH hammer, which is powered by compressed air. The hammer's piston strikes the bit's shank, transmitting energy to the tungsten carbide buttons that crush and fracture the rock. Simultaneously, the bit rotates slowly, allowing the buttons to engage fresh rock surfaces. Compressed air is directed through flushing holes in the bit to lift cuttings to the surface, keeping the hole clean. The K40 bit's design optimizes this process by ensuring efficient energy transfer, uniform button wear, and effective hole cleaning, resulting in high penetration rates and extended service life.
Detailed Features
- βΈHigh penetration rate in hard rock
- βΈLong service life and reduced downtime
- βΈLow cost per meter drilled
- βΈCompatible with major DTH hammer brands
- βΈAvailable in various sizes and face configurations
- βΈOptimized flushing for efficient hole cleaning
- βΈRobust construction for high impact resistance
- βΈStrict quality control for consistent performance
Packaging & Shipping
Each Kaishan K40 DTH drill bit is securely packed in a wooden case or carton with rust-proof protection, suitable for sea and air transport. Standard export packaging ensures safe delivery. For bulk orders, bits are palletized and shrink-wrapped. Container loading: 20ft container can hold approximately 500-800 pieces depending on size. Delivery time: 15-30 days after order confirmation. Port of shipment: Shanghai or Ningbo, China.
After-Sales Service
Kaishan offers a 12-month warranty on K40 DTH drill bits against manufacturing defects. Our dedicated after-sales team provides 24-hour online support and technical assistance. We offer free training on bit selection, operation and maintenance. Genuine spare parts are available with fast global shipping. Customized solutions and OEM services are also available upon request.
Frequently Asked Questions
What is the recommended hole diameter for the Kaishan K40 DTH bit?+
The K40 is available in various diameters, typically ranging from 76mm to 152mm. Please specify your required diameter when ordering.
Which DTH hammers are compatible with the K40 bit?+
The K40 is designed to fit standard DTH hammers with shanks such as DHD, COP, Mission, and SD series. Please confirm your hammer model for proper matching.
What rock formations is the K40 suitable for?+
The K40 is ideal for hard and abrasive rocks such as granite, basalt, quartzite, and limestone. It performs well in both homogeneous and fractured formations.
How to maximize the service life of the K40 bit?+
Proper operation includes maintaining correct air pressure, avoiding excessive rotation speed, and ensuring adequate flushing. Regular inspection and timely replacement of worn buttons are also recommended.
Do you offer custom face designs for the K40?+
Yes, we can provide flat face, convex face, and concave face designs, as well as different button shapes (spherical, ballistic, parabolic) to suit specific drilling conditions.
What is the lead time for a bulk order of K40 bits?+
Standard lead time is 15-30 days after receipt of deposit, depending on order quantity and customization requirements.
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Where This Machine Is Used
Is This Rig Right for My Project?
Answer seven questions about your hole, depth and rock β get a matched rig, compressor, hammer, bit and rod.
Need Technical Support?
Request information and get a quote from our engineers.
Recommended System
Rig + air compressor + drilling tools matched to your project. Get pre-matching advice from our engineers.
Recommended Equipment Configuration
Matched from real machine parameters β rig, compressor, hammer, bit and rod working as one system.
CDC-450J
- Hole range
- 105β350
- Drilling depth
- 450 m
Why matched
Parameter-matched to the machine on this page.
KSCY-550/13
- Working pressure
- 13 bar
- Air flow
- 15 mΒ³/min
Why matched
Covers the required 10 bar / 15 mΒ³/min air demand (rated 13 bar / 15 mΒ³/min).
K4
- Hole range
- 110β130
- Air flow
- 6β15 mΒ³/min
- Working pressure
- 10+ bar
- Bit shank
- K4** / COP44/DHD340
Why matched
Hole range 110β130 mm covers your requirement 115β150 mm.
System requirement: 10 bar / 15 mΒ³/min Β· 115β150 mm
