
📦 Martelos DTH
Martelo DTH de Alta Pressão K8
Model: K8
The Kaishan K8 DTH hammer is a high-performance down-the-hole tool engineered for water well drilling, mining, and quarrying. With an 8-inch class design, it delivers powerful impact energy and reliable performance in hard rock formations. Compatible with standard DTH bits and drill pipes, the K8 ensures efficient penetration and long service life. Its robust alloy steel construction and precision machining reduce downtime and operating costs. Ideal for contractors seeking dependable drilling tools for medium to large diameter holes.
Technical Specifications
| Modelo | K8 |
| Comprimento sem broca (mm) | 1355 |
| Peso sem broca (kg) | 192 |
| Faixa de Furação (mm) | 195-254 |
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.
Modelo
K8
Comprimento sem broca (mm)
1355
Peso sem broca (kg)
192
Faixa de Furação (mm)
195-254
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
8-inch class DTH hammer for medium to large diameter drilling
High impact energy and fast penetration in hard rock
Durable alloy steel construction with heat treatment
Optimized air distribution for efficient operation
Compatible with standard DTH bits and drill pipes
Low maintenance and long service life
High Pressure Series Models
Compare specifications across the series to find the right model.
| ☑ | Model | Model | Type | Size | Application | Material | Inquire |
|---|---|---|---|---|---|---|---|
| K8This model | K8 | DTH Hammer | 8 inch | Water well drilling, mining, quarrying | 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 | |
| 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 | |
| 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
- Bit retainer
- Check valve
- Drive chuck
- Air distributor
- Bottom sub
Working Principle
The Kaishan K8 DTH hammer operates on the principle of down-the-hole drilling, where the hammer is positioned directly above the drill bit at the bottom of the hole. Compressed air is supplied through the drill pipe to the hammer, driving a piston that strikes the bit with high impact energy. The bit then crushes the rock, and the air flow flushes cuttings out of the hole. This mechanism allows for efficient energy transfer and fast penetration, especially in hard rock formations. The hammer's internal design ensures optimal air distribution and minimal energy loss, resulting in high drilling efficiency and reduced fuel consumption.
Detailed Features
- ▸High impact energy for fast penetration
- ▸Durable alloy steel construction
- ▸Optimized air distribution system
- ▸Compatible with standard DTH bits
- ▸Low air consumption
- ▸Simple maintenance
- ▸Long service life
- ▸Reliable performance in hard rock
Packaging & Shipping
Each Kaishan K8 DTH hammer is packed in a wooden case or according to customer requirements, suitable for sea and air transport. Standard export packaging ensures protection during shipping. Delivery time is typically 15-30 days after order confirmation. Ports of shipment include Shanghai, Ningbo, or as per customer request.
After-Sales Service
Kaishan offers a 12-month warranty on the K8 DTH hammer against manufacturing defects. Our 24-hour customer service team provides technical support and troubleshooting. We offer training for operators and maintenance personnel. Genuine spare parts are available for quick delivery to minimize downtime.
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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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- Faixa de diâmetro
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Por que foi selecionado
A faixa de 152–300 mm cobre sua necessidade de 195–254 mm.
Requisito do sistema: 10 bar / 31 m³/min · 195–254 mm











