📦 DTH Hammers
Kaishan K46 DTH Hammer for Mining & Water Well Drilling
Model: K46
The Kaishan K46 DTH hammer is a high-performance down-the-hole tool engineered for demanding mining, quarrying, and water well drilling operations. Designed with a 4-inch class shank and precision-machined internal components, the K46 delivers reliable impact energy, excellent hole straightness, and long service life in hard rock formations. It is compatible with widely used DTH bits and drill pipes, making it a versatile choice for contractors seeking consistent penetration rates and reduced downtime. Manufactured under strict quality control, the K46 combines robust alloy steel construction with optimized air flow paths to maximize efficiency in rotary drilling rigs. Whether you are drilling blast holes, water wells, or foundation holes, the Kaishan K46 offers a dependable balance of performance, durability, and cost-effectiveness for professional drilling projects worldwide.
Technical Specifications
| Model | K46 |
| Type | DTH Hammer |
| Size | 4 inch |
| Application | Mining, Quarrying, Water Well Drilling, Construction |
| Material | High-Strength Alloy Steel |
| Weight | Approx. 45 kg |
| Packing | Wooden Case or Pallet |
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. 45 kg
Model
K46
Type
DTH Hammer
Size
4 inch
Application
Mining, Quarrying, Water Well Drilling, Construction
Material
High-Strength Alloy Steel
Packing
Wooden Case or Pallet
Not sure this model fits? Tell us the hole diameter and depth — we will confirm the matching rig, compressor and hammer.
Check with an engineerKey Advantages
4-inch class DTH hammer for efficient rock drilling
High-strength alloy steel construction for durability
Optimized air distribution for maximum impact energy
Compatible with standard DTH bits and drill pipes
Simple structure for easy maintenance and long service life
Suitable for mining, quarrying, water well, and construction
Applications
📍 Open-Pit Mining
Blast hole drilling in hard rock such as granite and limestone.
Solution: Kaishan K46 delivers consistent penetration and straight holes, reducing drilling time and explosive costs.
📍 Water Well Drilling
Drilling water wells in hard formations for residential, agricultural, and industrial use.
Solution: The K46 provides reliable performance and long service life, ensuring continuous water well drilling with minimal downtime.
📍 Quarrying
Drilling blast holes in quarries for aggregate production.
Solution: With its durable construction and optimized air flow, the K46 maintains high productivity in abrasive rock conditions.
📍 Construction Foundation
Drilling foundation holes for buildings, bridges, and infrastructure.
Solution: The K46 offers precise hole alignment and efficient rock penetration, supporting fast and stable foundation work.
High Pressure Series Models
Compare specifications across the series to find the right model.
| ☑ | Model | Model | Type | Size | Application | Material | Inquire |
|---|---|---|---|---|---|---|---|
| K46This model | K46 | DTH Hammer | 4 inch | Mining, Quarrying, Water Well Drilling, Construction | High-Strength Alloy Steel | Get a Quote | |
| K10 | K10 | DTH Drill Bit (Down-the-Hole Button Bit) | 90–130 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 | Φ110 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 | |
| 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 | |
| K8 | K8 | DTH Drill Bit | 4 inch (102 mm) diameter | Mining, quarrying, water well drilling | Alloy steel body with tungsten carbide buttons | Get a Quote | |
| K10 | K10 | DTH Hammer | 10 inch | Mining, Water Well, Quarry, Construction | Alloy Steel | Get a Quote | |
| K3 | K3 | DTH Hammer | 3 inch | Mining, quarrying, water well drilling, construction | Alloy steel | Get a Quote | |
| K30C | K30C | Down-the-Hole (DTH) Hammer | 3 inch (76.2 mm) nominal | Mining, quarrying, water well drilling, construction | High-quality alloy steel, heat-treated | Get a Quote | |
| K4 | K4 | DTH Hammer | 4 inch | Mining, water well, quarry, construction | Alloy steel, heat-treated | Get a Quote | |
| K40 | K40 | DTH Hammer | 4 inch | Mining, quarrying, water well drilling, construction | High-strength alloy steel | Get a Quote | |
| K40C | K40C | Down-The-Hole (DTH) Hammer | 4-inch class (105-130mm hole diameter) | Mining, water well, quarry, construction drilling | Alloy steel, heat-treated | Get a Quote | |
| K5 | K5 | Down The Hole (DTH) Hammer | 5 inch | Mining, quarrying, water well, construction | Alloy steel, heat-treated | Get a Quote | |
| K50 | K50 | Down-the-Hole (DTH) Hammer | 5-inch class | Mining, quarrying, water well drilling, construction | Alloy steel, heat-treated | Get a Quote | |
| K6 | K6 | DTH Hammer | 6 inch | Mining, Water Well, Quarrying | Alloy Steel | Get a Quote | |
| K8 | K8 | DTH Hammer | 8 inch | Water well drilling, mining, quarrying | Alloy steel | Get a Quote | |
| K80 | K80 | Down-the-Hole (DTH) Hammer | 8 inch (203 mm) | Mining, Quarrying, Water Well Drilling | Alloy Steel | Get a Quote |
Compare 2–3 models? Tick the boxes and send them together — we will quote each one for you.
Tip: select multiple models and click “Inquire All” — 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 — our engineers will recommend the right one.
Main Components
- Top sub
- Cylinder
- Piston
- Wear sleeve
- Valve system
- Bit shank
- Check valve
- Retainer ring
Working Principle
The Kaishan K46 DTH hammer operates on the principle of converting compressed air into mechanical impact energy. Compressed air is supplied through the drill pipe to the hammer, where it drives the piston in a reciprocating motion. The piston strikes the bit shank, generating a high-energy impact wave that is transmitted to the drill bit. Simultaneously, the air flows through the bit to flush cuttings out of the hole. The hammer's internal valve system controls the air distribution, ensuring smooth and efficient piston movement. The rotation of the drill string indexes the bit, allowing the tungsten carbide buttons to crush the rock in a series of impacts. This combination of impact and rotation enables fast penetration in hard rock. The K46's design minimizes energy loss and maximizes drilling efficiency, making it a reliable tool for demanding applications.
Detailed Features
- ▸High impact energy for fast penetration
- ▸Durable alloy steel construction
- ▸Optimized air flow for efficient flushing
- ▸Simple design for easy maintenance
- ▸Compatible with standard 4-inch DTH bits
- ▸Long service life with minimal downtime
- ▸Stable operation in hard rock formations
- ▸Cost-effective drilling solution
Packaging & Shipping
Each Kaishan K46 DTH hammer is packed in a sturdy wooden case or pallet, suitable for sea and air transport. Standard export packaging ensures protection against moisture, shock, and corrosion during shipping. We can accommodate container loading for bulk orders. Delivery time is typically 15-30 days after order confirmation, depending on quantity. Ports of shipment include Shanghai, Ningbo, or as per customer request. Customized packaging and labeling are available upon request.
After-Sales Service
Kaishan provides comprehensive after-sales service for the K46 DTH hammer. All products come with a 12-month warranty against manufacturing defects. Our technical support team is available 24/7 to assist with troubleshooting and operation questions. We offer free training for operators and maintenance personnel, either on-site or online. A full range of spare parts is available for quick shipment to minimize downtime. Our global service network ensures timely support wherever you operate.
Frequently Asked Questions
What is the Kaishan K46 DTH hammer used for?+
The K46 is a 4-inch class DTH hammer used for blast hole drilling in mining and quarrying, water well drilling, foundation drilling, and other rock drilling applications.
What size bits does the K46 use?+
The K46 is compatible with standard 4-inch DTH bits, typically with a shank size of 4 inches. Please consult our sales team for specific bit recommendations.
What is the recommended air pressure for the K46?+
The K46 operates efficiently with air pressure between 10-25 bar, depending on the application and drilling conditions. Higher pressure generally yields faster penetration.
How often should the K46 be maintained?+
Regular inspection and lubrication are recommended after each drilling shift. Replace worn parts such as the piston and wear sleeve as needed to maintain performance.
Is the K46 compatible with other brands of drilling rigs?+
Yes, the K46 is designed to be compatible with most drilling rigs that support 4-inch DTH hammers and standard drill pipes.
What is the warranty period for the K46?+
Kaishan offers a 12-month warranty against manufacturing defects for the K46 DTH hammer. Terms and conditions apply.
Related Insights
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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 — get a matched rig, compressor, hammer, bit and rod.
Need Technical Support?
Request information and get a quote from our engineers.
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Recommended Equipment Configuration
Matched from real machine parameters — rig, compressor, hammer, bit and rod working as one system.
CDC-450J
- Hole range
- 105–350
- Drilling depth
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Why matched
Parameter-matched to the machine on this page.
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- Working pressure
- 13 bar
- Air flow
- 15 m³/min
Why matched
Covers the required 12 bar / 15 m³/min air demand (rated 13 bar / 15 m³/min).
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- Hole range
- 105–130
- Pressure class
- 高风压 (High pressure)
Why matched
Hole range 105–130 mm covers your requirement 105–130 mm.
System requirement: 12 bar / 15 m³/min · 105–130 mm
