
π¦ DTH Drill Bits
Kaishan K30 DTH Drill Bit for Mining & Water Well
Model: K30
The Kaishan K30 DTH drill bit is a high-performance down-the-hole button bit designed for demanding mining, quarrying, and water well drilling operations. As a core product in Kaishan's Drilling Tools line, the K30 delivers reliable penetration in medium to hard rock formations. Manufactured from premium alloy steel with tungsten carbide buttons, it offers excellent wear resistance and impact toughness. The K30 features a standard shank design compatible with popular DTH hammers, ensuring stable energy transfer and efficient cuttings removal. Whether you are drilling blast holes in open-pit mines or constructing water wells, the Kaishan K30 provides consistent performance, longer service life, and reduced drilling costs. Available in various diameters and face designs to match your specific application. Backed by Kaishan's global service network and strict quality control, this DTH bit is a dependable choice for contractors and operators seeking productivity and durability in the field.
Technical Specifications
| Model | K30 |
| Type | DTH Button Bit |
| Size | 76mm - 152mm (customizable) |
| Application | Mining, Quarrying, Water Well, Construction |
| Material | Alloy Steel Body with Tungsten Carbide Buttons |
| Weight | Approx. 4.5kg - 25kg (depending on size) |
| Packing | Wooden Case / Carton |
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
Approx. 4.5kg - 25kg (depending on size)
Model
K30
Type
DTH Button Bit
Size
76mm - 152mm (customizable)
Application
Mining, Quarrying, Water Well, Construction
Material
Alloy Steel Body with Tungsten Carbide Buttons
Packing
Wooden Case / Carton
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
Premium alloy steel body for high strength and durability
Tungsten carbide buttons with excellent wear resistance
Optimized face design for fast penetration and hole cleaning
Standard shank compatible with popular DTH hammers
Heat-treated for optimal toughness and impact resistance
Available in multiple diameters and button configurations
Applications
π Open-Pit Mining
Blast hole drilling in medium to hard rock formations.
Solution: Kaishan K30 DTH bit delivers consistent penetration and long life, reducing downtime and drilling costs.
π Quarrying
Aggregate production requiring efficient rock fragmentation.
Solution: The K30's optimized flushing and button design ensure fast drilling and uniform hole quality.
π Water Well Drilling
Constructing water wells in various geological conditions.
Solution: Reliable performance in sandstone, limestone, and granite helps complete wells faster with fewer bit changes.
π Construction & Foundation
Drilling anchor holes and foundation piles in civil engineering.
Solution: The K30 provides accurate hole deviation control and dependable operation in confined spaces.
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 |
|---|---|---|---|---|---|---|---|
| K30This model | K30 | DTH Button Bit | 76mm - 152mm (customizable) | Mining, Quarrying, Water Well, 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 | |
| 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 | |
| K40 | K40 | DTH Button Bit | 76mm - 152mm (3" - 6") | Mining, quarrying, water well drilling, construction | Alloy steel body with tungsten carbide buttons | 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 bit body
- Tungsten carbide buttons
- Shank
- Flushing holes
- Face design
- Brazing alloy
- Retaining rings
- Wear-resistant coating
Working Principle
The Kaishan K30 DTH drill bit operates on the principle of down-the-hole percussive drilling. High-pressure air is delivered through the drill string to the DTH hammer, which directly drives the bit's piston. The piston strikes the bit's shank with high-frequency impacts, transferring energy to the tungsten carbide buttons that penetrate the rock. Simultaneously, the air flows through the bit's flushing holes, removing cuttings from the hole bottom and cooling the bit. The bit rotates slowly via the drill rig's rotation unit, indexing the buttons to fresh rock surfaces with each impact. This combination of impact and rotation creates efficient rock breakage. The K30's design ensures optimal energy transfer from the hammer to the rock, while its robust construction withstands the harsh conditions of drilling. The result is a high penetration rate, straight holes, and extended bit life, making it ideal for demanding drilling applications.
Detailed Features
- βΈHigh penetration rate in medium to hard rock
- βΈLong service life due to premium materials
- βΈCompatible with major DTH hammer brands
- βΈOptimized flushing for efficient hole cleaning
- βΈPrecision manufacturing for reliable fit
- βΈAvailable in various sizes and face designs
- βΈCost-effective per meter drilled
- βΈBacked by Kaishan global support
Packaging & Shipping
Each Kaishan K30 DTH drill bit is carefully packed in a wooden case or carton, with rust-preventive protection and secure cushioning to prevent damage during transport. Standard export packaging is suitable for sea and air freight. For bulk orders, bits are palletized and shrink-wrapped. Container loading capacity: approximately 500-800 pieces per 20ft container depending on size. Lead time: 15-30 days after order confirmation. Ports of shipment: Shanghai, Ningbo, or as per customer request. We can also accommodate custom packaging and labeling requirements.
After-Sales Service
Kaishan offers a comprehensive after-sales service for the K30 DTH drill bit. All products come with a 6-month warranty against manufacturing defects. Our technical support team is available 24/7 to assist with product selection, troubleshooting, and optimization. We provide on-site training for operators and maintenance personnel upon request. A global network of spare parts warehouses ensures quick availability of replacement bits and components. For distributors, we offer marketing support and technical documentation. Our goal is to maximize your drilling productivity and minimize downtime.
Frequently Asked Questions
What is the Kaishan K30 DTH drill bit used for?+
The K30 is a down-the-hole button bit used for blast hole drilling in mining, quarrying, water well drilling, and construction. It is designed for medium to hard rock formations.
What sizes are available for the K30?+
The K30 is available in various diameters, typically ranging from 76mm to 152mm, with different button configurations. Custom sizes can be provided upon request.
Which DTH hammers are compatible with the K30?+
The K30 features a standard shank design that fits most popular DTH hammers, including Kaishan, Atlas Copco, Sandvik, and others. Please confirm the shank type when ordering.
How long does the K30 drill bit last?+
Bit life depends on rock conditions, drilling parameters, and operator skill. Under normal conditions, the K30 offers excellent wear life, often outperforming standard bits. Proper maintenance and regrinding can extend its life further.
Can I get a sample or trial order?+
Yes, we welcome trial orders to test performance. Please contact our sales team for details on sample availability and pricing.
What is the warranty and after-sales support?+
We provide a 6-month warranty against manufacturing defects. Our 24/7 technical support and global spare parts network ensure prompt assistance.
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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-600
- Hole range
- 90β850
- Drilling depth
- 600 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 / 12.6 mΒ³/min air demand (rated 13 bar / 15 mΒ³/min).

K3
- Hole range
- 90β105
- Air flow
- 4.8β12.6 mΒ³/min
- Working pressure
- 10+ bar
- Bit shank
- K3** / IR3.5
Why matched
Hole range 90β105 mm covers your requirement 90β95 mm.
System requirement: 10 bar / 12.6 mΒ³/min Β· 90β95 mm









