📦 DTH Hammers

Kaishan K5 DTH Hammer for Down The Hole Drilling

Name: Kaishan K5 DTH Hammer for Down The Hole Drilling
Brand: Kaishan
SKU: K5
Availability: InStock

Model: K5

The Kaishan K5 DTH hammer is a high-performance down-the-hole drilling tool engineered for reliable rock penetration in mining, quarrying, water well, and construction projects. Designed with a 5-inch class shank and precision-machined internal components, the K5 delivers strong impact energy, stable operation, and long service life under demanding conditions. It is compatible with widely used DTH bits and drill pipes, making it a practical choice for contractors and equipment operators seeking consistent drilling efficiency. Manufactured by Kaishan, a recognized name in drilling equipment, the K5 hammer combines durable alloy steel construction, optimized air flow channels, and simple maintenance to reduce downtime and cost per meter. Whether you are drilling blast holes, water wells, or foundation holes, the Kaishan K5 offers dependable performance and easy integration with your existing DTH drilling system.

Best For

Mining and Quarrying Water Well Drilling Construction and Foundation Geothermal Drilling

Technical Specifications

Model	K5
Type	Down The Hole (DTH) Hammer
Size	5 inch
Application	Mining, quarrying, water well, construction
Material	Alloy steel, heat-treated
Weight	Approx. 45 kg
Packing	Wooden case or pallet

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview The Kaishan K5 DTH hammer is a 5-inch class down-the-hole tool designed for efficient hard rock drilling. As part of Kaishan's drilling tools line, it is built to deliver reliable impact energy and stable performance in mining, quarrying, water well, and construction applications. The K5 is suitable for use with standard DTH bits and drill pipes, allowing contractors to integrate it into existing drilling rigs without major modifications. ## Technical Features The K5 hammer uses a valveless or valve-type internal design (depending on configuration) to simplify structure and improve reliability. Its piston and cylinder are machined from high-quality alloy steel and heat-treated for wear resistance. The air distribution system is optimized to reduce pressure loss and improve rock cutting efficiency. The hammer's shank is designed to match common 5-inch DTH bit shanks, ensuring compatibility and easy bit changes. With a focus on durability, the K5 minimizes internal leakage and maintains consistent impact frequency under varying air pressures. ## Applications The Kaishan K5 is widely used in open-pit mining, quarry blasting, water well drilling, geothermal drilling, and foundation engineering. It performs well in medium-hard to hard rock formations such as granite, limestone, basalt, and sandstone. The hammer can be paired with various DTH bits to suit different hole diameters and rock conditions. Its robust construction makes it suitable for continuous operation in remote job sites where reliability and easy maintenance are critical. ## Maintenance and Compatibility Routine maintenance includes checking the piston, bit shank, and air passages for wear and debris. The K5 is designed for straightforward disassembly, allowing field service with common tools. It is compatible with many standard 5-inch DTH bits and drill pipes, reducing inventory complexity. Kaishan provides technical support and spare parts to help keep your drilling operations running smoothly.

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

Type

Down The Hole (DTH) Hammer

Size

5 inch

Application

Mining, quarrying, water well, construction

Material

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 engineer

Key Advantages

✓

5-inch class DTH hammer for hard rock drilling

✓

High impact energy and stable performance

✓

Durable alloy steel construction with heat treatment

✓

Optimized air flow for efficient rock penetration

✓

Compatible with standard DTH bits and drill pipes

✓

Simple structure for easy maintenance and low downtime

Applications

📍 Mining and Quarrying

Used for blast hole drilling in open-pit mines and quarries.

Solution: Pair with 5-inch DTH bits and high-pressure air compressors to achieve fast penetration in granite, limestone, and basalt.

📍 Water Well Drilling

Suitable for drilling water wells in medium-hard rock formations.

Solution: Combine with water well drilling rigs and DTH bits to ensure straight holes and efficient cuttings removal.

📍 Construction and Foundation

Used for foundation piling, anchor holes, and site investigation.

Solution: Use with compact DTH rigs and appropriate bits to drill accurate holes in confined urban job sites.

📍 Geothermal Drilling

Applied in geothermal borehole drilling for heat pump systems.

Solution: Match with geothermal drilling rigs and DTH bits to maintain stable performance in varying rock conditions.

High Pressure Series Models

Compare specifications across the series to find the right model.

Model	Model	Type	Size	Application	Material	Inquire
K5This model	K5	Down The Hole (DTH) Hammer	5 inch	Mining, quarrying, water well, construction	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
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
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.

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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.

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Main Components

Top sub
Check valve
Piston
Cylinder
Bit shank
Guide sleeve
O-rings and seals
Retainer rings

Working Principle

The Kaishan K5 DTH hammer operates on the principle of down-the-hole percussion. Compressed air is supplied through the drill pipe to the hammer, where it drives a piston inside the cylinder. The piston strikes the bit shank at high frequency, transferring impact energy directly to the drill bit. The bit then penetrates the rock through a combination of impact, rotation, and flushing. After the impact, the air flows through the bit's flushing holes to remove cuttings from the hole bottom and cool the bit. The hammer's air distribution system controls the piston movement, ensuring consistent impact energy and efficient air usage. Because the hammer is located directly above the bit, energy loss is minimized, resulting in faster penetration and less wear on the drill string. The K5 is designed to work with standard DTH bits and can be adapted to different air pressures and rotation speeds for various rock conditions.

Detailed Features

▸High impact energy for fast penetration
▸Durable alloy steel construction
▸Heat-treated internal parts for wear resistance
▸Optimized air flow channels
▸Compatible with standard 5-inch DTH bits
▸Simple structure for easy maintenance
▸Stable performance in hard rock
▸Long service life and low cost per meter

Packaging & Shipping

Each Kaishan K5 DTH hammer is packed in a wooden case or pallet suitable for export shipping. The hammer is protected with anti-rust oil and wrapped in plastic film to prevent moisture and corrosion during transport. Standard packing dimensions and weight are available upon request. 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 other major Chinese ports as required. Customers can choose FOB, CIF, or other Incoterms. We provide complete shipping documents and can arrange air freight for urgent orders.

After-Sales Service

Kaishan offers a 12-month warranty on the K5 DTH hammer against manufacturing defects. Our technical support team is available 24 hours a day to assist with installation, operation, and troubleshooting. We provide free training materials and can arrange on-site training for large orders. A full range of spare parts is available for fast delivery, minimizing downtime. Our global service network ensures quick response to customer needs. We also offer customization services for specific drilling conditions. For any questions or after-sales support, please contact our local distributor or our headquarters service center.

Frequently Asked Questions

What is the Kaishan K5 DTH hammer used for?+

The Kaishan K5 is a 5-inch class DTH hammer used for drilling blast holes, water wells, geothermal holes, and foundation holes in medium-hard to hard rock formations.

What size DTH bits are compatible with the K5 hammer?+

The K5 is designed for standard 5-inch DTH bits. Common bit diameters range from 130mm to 152mm, depending on your specific drilling requirements.

What air pressure does the K5 hammer require?+

The K5 typically operates at air pressures between 10 and 25 bar, depending on the drilling conditions and desired penetration rate. Higher pressure generally yields faster drilling.

How often should I maintain the K5 hammer?+

Routine inspection is recommended after every 100-200 hours of operation. Check the piston, bit shank, and seals for wear, and clean air passages regularly to ensure optimal performance.

Can the K5 hammer be used with different drilling rigs?+

Yes, the K5 is compatible with most drilling rigs that support 5-inch DTH hammers, including mining rigs, water well rigs, and construction rigs.

What is the warranty and after-sales support for the K5?+

We offer a 12-month warranty against manufacturing defects. Our support team is available 24/7 for technical assistance, and spare parts are readily available for fast shipment.