📦 DTH Hammers

Kaishan K4 DTH Hammer for Drilling Tools

Name: Kaishan K4 DTH Hammer for Drilling Tools
Brand: Kaishan
SKU: K4
Availability: InStock

Model: K4

The Kaishan K4 DTH hammer is a high-performance down-the-hole hammer designed for demanding drilling tools applications. Engineered for efficient rock fragmentation in mining, quarrying, water well, and construction projects, the K4 delivers reliable impact energy with optimized air consumption. Its robust alloy steel construction and precision manufacturing ensure long service life and consistent performance. Compatible with standard DTH bits and drill pipes, this hammer integrates seamlessly into existing drill rigs. The K4 is ideal for medium-hard to hard rock formations, offering fast penetration rates and reduced operating costs. With Kaishan's global service network, you gain dependable support, genuine spare parts, and technical assistance. Whether you are drilling blast holes, water wells, or foundation holes, the Kaishan K4 DTH hammer provides a durable and cost-effective solution for your drilling tools needs.

Best For

Mining Blast Hole Drilling Water Well Drilling Quarrying and Aggregate Production Construction and Foundation Drilling

Technical Specifications

Model	K4
Type	DTH Hammer
Size	4 inch
Application	Mining, water well, quarry, construction
Material	Alloy steel, heat-treated
Weight	Approx. 45 kg
Packing	Wooden case

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview The Kaishan K4 DTH hammer is a premium drilling tool engineered for professionals who demand efficiency and durability. As a key component in down-the-hole drilling systems, this hammer is designed to deliver high-impact energy directly to the bit, maximizing penetration rates in hard rock conditions. Built with advanced metallurgy and precision machining, the K4 stands out in the drilling tools category for its reliability and extended service life. ## Technical Features The K4 hammer incorporates a robust piston and cylinder design that optimizes air flow and impact frequency. Its wear-resistant alloy steel components are heat-treated to withstand abrasive environments, reducing downtime and maintenance costs. The hammer features a simple yet effective valving system that ensures consistent operation even in challenging drilling conditions. With a standard API connection, it is compatible with a wide range of DTH bits and drill pipes, making it a versatile choice for various rigs. ## Applications The Kaishan K4 is suitable for a broad spectrum of drilling applications. In mining, it excels in blast hole drilling where speed and reliability are critical. For water well drilling, it provides efficient penetration through hard formations, ensuring clean and productive wells. In quarrying and construction, it is used for foundation holes, anchoring, and site investigation. The hammer's adaptability makes it a valuable asset for contractors and operators worldwide. ## Performance and Reliability Field tests and customer feedback confirm that the K4 delivers consistent performance with minimal air consumption. Its balanced design reduces vibration and wear on the drill string, extending the life of adjacent components. The hammer is easy to maintain, with readily available spare parts and service support from Kaishan's global network. By choosing the Kaishan K4, you invest in a drilling tool that enhances productivity and lowers total cost of ownership.

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

DTH Hammer

Size

4 inch

Application

Mining, water well, quarry, construction

Material

Alloy steel, heat-treated

Packing

Wooden case

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

✓

High-impact energy for fast penetration in hard rock

✓

Durable alloy steel construction with heat-treated components

✓

Optimized air consumption for cost-effective operation

✓

Standard API connection for broad compatibility

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Simple valving system for reliable performance

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Low maintenance design with easily replaceable parts

Applications

📍 Mining Blast Hole Drilling

Used in open-pit and underground mines for drilling blast holes in medium to hard rock.

Solution: The K4's high impact energy and durable design ensure fast penetration and long service life, reducing drilling costs per meter.

📍 Water Well Drilling

Ideal for drilling water wells in hard rock formations where efficient penetration is essential.

Solution: With optimized air consumption and reliable operation, the K4 helps complete wells faster and with lower fuel costs.

📍 Quarrying and Aggregate Production

Used in quarries for drilling blast holes to extract aggregate and dimension stone.

Solution: The hammer's consistent performance and low maintenance requirements minimize downtime and maximize productivity.

📍 Construction and Foundation Drilling

Suitable for foundation holes, anchoring, and site investigation in construction projects.

Solution: The K4's compatibility with various bits and rigs makes it a versatile tool for diverse geotechnical drilling needs.

High Pressure Series Models

Compare specifications across the series to find the right model.

Model	Model	Type	Size	Application	Material	Inquire
K4This model	K4	DTH Hammer	4 inch	Mining, water well, quarry, 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
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.

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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
Valve assembly
Bit retainer ring
Drive chuck
Bottom sub

Working Principle

The Kaishan K4 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 fed through the drill pipe to the hammer, driving a piston in a reciprocating motion. The piston strikes the bit with high impact energy, fracturing the rock. Simultaneously, the exhaust air flushes the cuttings out of the hole through the annular space between the drill pipe and the hole wall. This design minimizes energy loss and allows for efficient drilling in hard rock. The hammer's valving system controls the air flow to ensure optimal impact frequency and energy transfer. The K4 is engineered to deliver a balance of power and air efficiency, making it a reliable choice for demanding drilling operations.

Detailed Features

▸High impact energy for fast drilling
▸Durable alloy steel construction
▸Heat-treated components for wear resistance
▸Optimized air consumption
▸Standard API connections
▸Simple and reliable valving system
▸Low maintenance and easy parts replacement
▸Compatible with various DTH bits and rigs

Packaging & Shipping

Each Kaishan K4 DTH hammer is packed in a wooden case with foam protection to prevent damage during transportation. The case is then palletized and shrink-wrapped for container loading. Standard export packing ensures safe delivery to any major port. Lead time is typically 15-30 days after order confirmation, depending on quantity. We ship from Shanghai or Ningbo port, China. Customized packaging and labeling are available upon request.

After-Sales Service

Kaishan offers a 12-month warranty on the K4 DTH hammer against manufacturing defects. Our global service network provides 24-hour technical support and genuine spare parts supply. We offer on-site training for operators and maintenance personnel to ensure optimal performance and safety. With dedicated after-sales teams in key regions, we guarantee quick response and minimal downtime for your drilling operations.

Frequently Asked Questions

What is the recommended air pressure for the Kaishan K4 DTH hammer?+

The K4 is designed to operate efficiently at air pressures between 10-25 bar (145-360 psi), depending on the application and rock conditions. Higher pressure generally yields faster penetration.

Which drill bits are compatible with the K4 hammer?+

The K4 uses a standard API connection and is compatible with a wide range of DTH bits, including button bits and cross bits, with shank sizes matching the hammer's chuck.

What is the warranty period for the K4 hammer?+

We provide a 12-month warranty against manufacturing defects. The warranty covers parts and labor but excludes normal wear and tear or misuse.

Can the K4 be used with different drill rigs?+

Yes, the K4 is designed for universal compatibility with most DTH drill rigs that support the required air pressure and connection size.

How often should the K4 hammer be maintained?+

Regular inspection and lubrication are recommended after every 100-150 drilling hours. Replace worn parts promptly to ensure optimal performance and longevity.

What is the lead time for ordering the K4?+

Standard lead time is 15-30 days after order confirmation, depending on quantity and customization requirements. Expedited shipping can be arranged for urgent orders.