📦 DTH Hammers
Kaishan K30C DTH Hammer for Mining & Water Well Drilling
Model: K30C
The Kaishan K30C DTH hammer is a high-performance down-the-hole tool engineered for efficient rock drilling in mining, quarrying, and water well projects. Designed to match medium-diameter blast hole and water well rigs, it delivers reliable impact energy, stable operation, and long service life. The K30C features a robust alloy steel body, precision-machined internal components, and optimized air passage design that maximizes energy transfer while reducing air consumption. It is compatible with standard DTH bits and drill pipes, making it a versatile choice for contractors seeking productivity and durability. With simple maintenance and proven field performance, the K30C helps reduce downtime and lower cost per meter drilled. Whether you are drilling in hard granite, limestone, or mixed formations, this hammer provides consistent penetration rates and dependable service in demanding conditions.
Technical Specifications
| Model | K30C |
| Type | Down-the-Hole (DTH) Hammer |
| Size | 3 inch (76.2 mm) nominal |
| Application | Mining, quarrying, water well drilling, construction |
| Material | High-quality alloy steel, heat-treated |
| Weight | Approx. 25 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. 25 kg
Model
K30C
Type
Down-the-Hole (DTH) Hammer
Size
3 inch (76.2 mm) nominal
Application
Mining, quarrying, water well drilling, construction
Material
High-quality alloy steel, heat-treated
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
High impact energy for efficient rock fragmentation
Optimized air passage design reduces air consumption
Robust alloy steel construction with heat treatment
Precision-machined internal components for reliable operation
Compatible with standard DTH bits and drill pipes
Easy maintenance with accessible wear parts
Proven performance in hard rock formations
Backed by Kaishan global service and spare parts support
Applications
📍 Open-Pit Mining
Blast hole drilling in hard rock such as granite and basalt.
Solution: K30C provides consistent penetration rates and long service life, reducing cost per meter.
📍 Quarrying
Drilling for aggregate production in limestone and other quarries.
Solution: High impact energy and efficient air usage ensure fast drilling and lower fuel costs.
📍 Water Well Drilling
Constructing water wells in various geological formations.
Solution: Reliable performance and compatibility with standard bits make it ideal for water well projects.
📍 Construction & Foundation
Drilling for foundations, anchoring, and site preparation.
Solution: Compact and durable design allows use in confined spaces with consistent results.
High Pressure Series Models
Compare specifications across the series to find the right model.
| ☑ | Model | Model | Type | Size | Application | Material | Inquire |
|---|---|---|---|---|---|---|---|
| K30CThis model | 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 | |
| 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 | |
| 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 | |
| K46 | K46 | DTH Hammer | 4 inch | Mining, Quarrying, Water Well Drilling, Construction | High-Strength Alloy Steel | 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
- Check valve
- Piston
- Cylinder
- Bit retainer ring
- Drive chuck
- Bottom sub
- O-rings and seals
Working Principle
The Kaishan K30C DTH hammer operates on the principle of down-the-hole percussion. Compressed air is supplied through the drill pipe to the hammer, which is located directly above the drill bit. Inside the hammer, the air drives a piston in a reciprocating motion. The piston strikes the bit with high impact energy, fracturing the rock. After the impact, the air is exhausted through the bit's flushing holes, clearing cuttings from the hole and cooling the bit. The hammer's design ensures that the impact energy is efficiently transferred to the rock, while the air distribution system minimizes pressure losses. The rotation of the drill string indexes the bit for the next impact, allowing continuous drilling. This method is highly effective in hard rock formations, as the hammer delivers powerful blows directly to the bit without energy loss through the drill string. The K30C's optimized internal geometry and precision manufacturing ensure reliable operation and long service life.
Detailed Features
- ▸High impact energy for fast penetration
- ▸Optimized air consumption
- ▸Durable alloy steel construction
- ▸Precision-machined internal parts
- ▸Easy maintenance and part replacement
- ▸Compatible with standard DTH bits
- ▸Reliable in hard rock conditions
- ▸Global service and spare parts support
Packaging & Shipping
Each Kaishan K30C DTH hammer is packed in a sturdy wooden case or pallet, suitable for sea and air transport. The packaging includes rust-preventive coating and shock-absorbing materials to protect the hammer during shipping. Standard export packing ensures compliance with international shipping requirements. For bulk orders, hammers can be loaded into 20ft or 40ft containers. Delivery time is typically 15-30 days after order confirmation, depending on quantity. Shipping ports include Shanghai, Ningbo, or as per customer request. We provide full documentation for customs clearance.
After-Sales Service
Kaishan offers comprehensive after-sales service for the K30C DTH hammer. Each product comes with a 12-month warranty against manufacturing defects. Our global service network provides 24-hour technical support and prompt spare parts delivery. We offer on-site training for operators and maintenance personnel to ensure optimal performance and safety. Our engineers are available for consultation on drilling parameters and applications. With strategically located warehouses, we minimize downtime and keep your operations running smoothly.
Frequently Asked Questions
What is the recommended air pressure for the K30C?+
The K30C is designed to operate efficiently at air pressures between 10-14 bar (145-203 psi). Higher pressure can increase penetration rate but may affect wear life.
What size DTH bits are compatible with the K30C?+
The K30C accepts standard DTH bits with a shank size matching the hammer's chuck. Common bit diameters range from 90mm to 130mm.
Can the K30C be used with any drilling rig?+
Yes, the K30C is compatible with most drilling rigs that support DTH hammers, including Kaishan and other brands, as long as the rig provides adequate air pressure and rotation.
What is the expected service life of the K30C?+
Service life depends on operating conditions and maintenance. Under normal use, the hammer can last for thousands of meters. Regular inspection and replacement of wear parts are recommended.
How often should I maintain the K30C?+
Daily checks of air supply and lubrication are advised. After each drilling project, disassemble and inspect internal components. Replace worn parts as needed.
Do you provide spare parts for the K30C?+
Yes, we stock a full range of spare parts for the K30C and can ship them quickly worldwide. Contact our service team for a parts list.
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.
Recommended System
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Recommended Equipment Configuration
Matched from real machine parameters — rig, compressor, hammer, bit and rod working as one system.
CDC-600
- Hole range
- 90–850
- Drilling depth
- 600 m
Why matched
Parameter-matched to the machine on this page.
KSCY-550/13
- Working pressure
- 13 bar
- Air flow
- 15 m³/min
Why matched
Covers the required 10 bar / 14 m³/min air demand (rated 13 bar / 15 m³/min).
K3
- Hole range
- 90–105
- Pressure class
- 高风压 (High pressure)
Why matched
Hole range 90–105 mm covers your requirement 90–105 mm.
System requirement: 10 bar / 14 m³/min · 90–105 mm
