SP Series High Air Pressure DTH Button Bit – Premium Performance for High-Pressure Hard Rock Drilling (Φ108–Φ203mm)

The SP Series High Air Pressure Down-the-Hole (DTH) Button Bit is a premium drilling consumable engineered for high-performance drilling in hard and abrasive rock formations. Designed to withstand the demanding conditions of high-pressure DTH hammers, this series delivers exceptional penetration rates, extended service life, and superior hole quality across a wide range of mining, quarrying, and construction applications.

Manufactured from high-grade alloy steel with precision-engineered tungsten carbide buttons, the SP Series offers optimal impact energy transfer and wear resistance. The advanced button configurations – featuring domed, ballistic, and combined profiles – are specifically designed to match different rock hardness levels and drilling conditions, ensuring maximum drilling efficiency and cost-effectiveness.

Available in four series – SP480, SP580, SP680, and SP780 – covering head diameters from Φ108mm to Φ203mm, the SP Series provides comprehensive coverage for high-pressure DTH drilling operations. Each model features optimized spline configurations, shank lengths, and button layouts to ensure perfect compatibility with leading high-pressure DTH hammer brands.

Whether you are drilling blast holes in open-pit mines, production holes in quarries, or deep water wells in hard rock formations, the SP Series delivers the performance and durability you need to maximize productivity and minimize operating costs.

1. Open-Pit Mining

Used extensively for production blasting in large-scale open-pit mining operations. The SP Series delivers the impact resistance and penetration rates required for efficient fragmentation in hard and abrasive rock formations. The SP680 and SP780 series are particularly well-suited for large-diameter blast holes in copper, gold, iron ore, and coal mining operations.

2. Quarrying & Dimension Stone

Widely applied in quarry operations for production blasting and dimension stone extraction. The SP Series offers the button configurations and face designs needed to achieve optimal fragmentation while maintaining hole quality. The SP580 series is a popular choice for medium-sized quarry operations requiring Φ140–178mm holes.

3. Water Well Drilling

Employed for deep water well construction in hard rock formations. The SP Series provides the durability and penetration rates needed for efficient water well drilling, with the SP680 series offering excellent performance for large-diameter production wells requiring Φ154–203mm holes.

4. Underground Mining

Used in underground mining operations for production drilling and development work. The compact designs and optimized button layouts of the SP Series ensure efficient drilling in confined spaces while maintaining high penetration rates.

5. Construction & Foundation Work

Ideal for large-diameter foundation piling, rock anchoring, and civil infrastructure projects. The SP Series provides the impact power and wear resistance needed for demanding foundation applications in hard rock conditions.

6. Tunneling & Underground Construction

Employed in tunnel pre-grouting, rock bolting, and underground support applications. The SP Series offers the durability and performance required for challenging underground drilling conditions.

1. Premium Tungsten Carbide Buttons

The SP Series features high-quality tungsten carbide buttons with advanced domed and ballistic profiles. Domed buttons provide superior wear resistance and impact strength for extreme hard rock conditions, while ballistic buttons offer enhanced cutting action for faster penetration. The combination of both profiles in select models delivers optimal performance across varying rock formations.

2. Optimized Face Designs

Available in convex, flat, and concave face configurations, the SP Series allows operators to select the optimal face design for their specific rock conditions:

Convex Face: Ideal for medium to hard rock, providing excellent penetration and hole straightness.

Flat Face: Suitable for very hard and abrasive rock, offering maximum button support and durability.

Concave Face: Designed for extreme hard rock and deep hole drilling, ensuring superior hole cleaning and reduced deviation.

3. Extended Service Life

Manufactured from high-grade alloy steel with precision heat treatment, the SP Series offers exceptional resistance to wear, impact, and abrasion. The optimized button spacing and gauge protection ensure maximum utilization of each button, extending service life and reducing cost per drilled meter.

4. Superior Impact Energy Transfer

The precision-engineered spline configurations (10 or 12 splines) ensure optimal torque transmission and impact energy transfer from the hammer to the bit. This results in faster penetration rates, reduced energy loss, and improved drilling efficiency.

5. Comprehensive Model Coverage

With four series and 17 distinct models covering head diameters from Φ108mm to Φ203mm, the SP Series addresses nearly every high-pressure DTH drilling requirement. This extensive product range allows operators to precisely match the bit to their specific rock conditions, hole size, and hammer specifications.

6. High-Pressure Compatibility

Specifically engineered for high-pressure DTH hammers, the SP Series is designed to withstand the increased impact energy and air pressures typical of modern high-pressure drilling systems. This ensures reliable performance and extended service life in demanding high-pressure applications.

7. Excellent Hole Quality

The advanced button configurations and face designs ensure superior hole straightness and minimal deviation. The optimized gauge button arrangement provides effective gauge protection, maintaining hole diameter accuracy throughout the drilling process.

8. Versatile Shank Compatibility

The SP Series features multiple shank length options (165mm, 185mm, 220mm, 231mm) and spline configurations to ensure compatibility with leading high-pressure DTH hammer brands, providing flexibility in equipment selection and inventory management.

Q1: What is the difference between the SP series models?

The SP series comprises four model families based on head diameter range and shank configuration: SP480 (Φ108–130mm, 165mm shank), SP580 (Φ140–178mm, 185mm shank), SP680 (Φ154–203mm, 231mm shank), and SP780 (Φ190–203mm, 220mm shank). Each series is optimized for specific hole diameter requirements and high-pressure hammer compatibility.

Q2: What button types are available in the SP Series?

The SP Series features domed, ballistic, and combined (domed + ballistic) button profiles. Domed buttons provide superior wear resistance and impact strength for extreme hard rock, while ballistic buttons offer enhanced cutting action for faster penetration in medium-hard rock.

Q3: What face designs are available and when should I use each?

Three face designs are available: Convex (ideal for medium to hard rock, excellent penetration), Flat (suitable for very hard and abrasive rock, maximum durability), and Concave (designed for extreme hard rock and deep hole drilling, superior hole cleaning).

Q4: What head diameters are covered by the SP Series?

The SP Series covers head diameters from Φ108mm to Φ203mm, with specific ranges per series: SP480 (Φ108–130mm), SP580 (Φ140–178mm), SP680 (Φ154–203mm), and SP780 (Φ190–203mm).

Q5: What shank lengths and spline configurations are available?

Shank lengths include 165mm (SP480), 185mm (SP580), 231mm (SP680), and 220mm (SP780). Spline configurations are 10 splines (SP480, SP580, SP780) and 12 splines (SP680).

Q6: How do I select the right SP bit for my application?

Follow this principle: First determine required hole diameter → Then select the appropriate series → Consider rock hardness to choose face design and button type → Verify shank and spline compatibility with your hammer.

Q7:Why Choose Our DTH Drill Bits?

As a factory-direct manufacturer with over 20 years of industry experience, we eliminate unnecessary middlemen to provide you with world-class DTH drill bits that deliver outstanding performance, exceptional durability, and excellent value for money.

Q8: What are the shipping methods and delivery lead times?

We offer sea freight (20–30 days), air freight (5–7 days), and express courier (3–5 days). Standard production takes 15–20 working days, with custom orders slightly longer. Exact delivery schedules are confirmed upon order placement.