Kaishan K80 DTH Hammer for Mining & Water Well Drilling

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.

Key Advantages

Applications

High Pressure Series Models

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Main Components

• Top sub (back head) with API pin connection
• Outer cylinder (casing)
• Piston
• Distributor (air control valve)
• Bit shank adaptor (chuck)
• Check valve assembly
• Retainer rings and snap rings
• Seal kits and O-rings

Working Principle

The Kaishan K80 DTH hammer operates on the principle of compressed air driving a piston to deliver high-energy impacts to the drill bit. Compressed air is supplied through the drill string to the hammer's inlet. The air enters the internal chamber and pushes the piston forward. When the piston strikes the bit shank, it transfers a powerful impact wave to the drill bit, which fractures the rock. After the impact, the piston retracts as air is redirected to the rear chamber. The exhaust air then flows through the bit's flushing holes, clearing cuttings from the hole and cooling the bit. This cycle repeats rapidly, typically 1,200 to 1,800 blows per minute, depending on air pressure and volume. The K80's valveless design uses the piston itself to control air flow, reducing the number of moving parts and increasing reliability. The hammer's spline drive transmits rotation from the drill string to the bit, ensuring even wear and efficient rock breakage. The combination of high impact energy and continuous flushing results in fast penetration rates and long bit life.

Detailed Features

• ▸High impact energy for fast penetration in hard rock
• ▸Durable alloy steel body resists wear and abrasion
• ▸Optimized air consumption reduces operating costs
• ▸Valveless design for simplified maintenance
• ▸Standard API connections for global rig compatibility
• ▸Precision-machined components ensure reliable operation
• ▸Compatible with 8-inch DTH bits with K80 shank
• ▸Proven performance in mining, quarrying, and water well drilling

Packaging & Shipping

Each Kaishan K80 DTH hammer is securely packed in a wooden case with foam padding to prevent damage during transport. The hammer is coated with anti-rust oil and wrapped in plastic film. Standard export packing is suitable for sea and air freight. For bulk orders, hammers can be palletized or loaded into 20ft or 40ft containers. Typically, 20–30 units fit in a 20ft container depending on packaging configuration. Lead time is 15–30 days after order confirmation, depending on quantity. Shipping ports include Ningbo, Shanghai, or Qingdao, China. We can also arrange door-to-door delivery upon request.

After-Sales Service

Kaishan provides comprehensive after-sales service for the K80 DTH hammer. Each hammer is warranted for 6 months from the date of shipment against manufacturing defects. Our global service network offers 24-hour technical support via email or phone. We provide free training for operators and maintenance personnel, either on-site or at our facilities. A full range of spare parts is available for immediate shipment, ensuring minimal downtime. Our engineers can assist with troubleshooting, performance optimization, and custom solutions. We also offer repair and refurbishment services to extend the hammer's service life. Customer satisfaction is our priority, and we strive to respond to all inquiries within one business day.

Frequently Asked Questions