CIR90 95mm CV Convex Face Semi-Ballistic Button Bit - DTH Rock Drill Bit

The CIR90 95mm CV Convex Face Semi-Ballistic Button Bit is a high-performance DTH drilling bit designed for efficient rock drilling in mining, quarrying, construction, and rock excavation applications. It features a 95mm bit diameter, convex face design, and semi-ballistic button configuration for balanced penetration, efficient rock breaking, and reliable drilling performance.

The carbide button layout includes 6 × 14mm, 4 × 12mm, and 2 × 10mm buttons, providing an optimized cutting structure for effective energy transfer and stable drilling in medium to hard rock formations.

The convex face profile helps concentrate drilling energy toward the center of the hole, while the semi-ballistic buttons provide a combination of penetration efficiency and wear resistance. The CIR90 configuration is suitable for DTH drilling applications where consistent hole quality and dependable bit life are required.

Applications

• Mining drilling - production and blast-hole drilling
• Quarrying - drilling in limestone, granite and other rock formations
• Construction drilling - foundation and infrastructure projects
• Rock excavation - drilling holes for controlled rock breaking
• Open-pit mining - DTH production drilling
• Bench drilling - quarry and mining bench preparation

Features and Advantages

• 95mm Nominal Bit Diameter - Designed for CIR90 DTH drilling applications requiring consistent hole diameter.
• CV Convex Face Design - Concentrates drilling energy toward the central area of the bit, supporting efficient penetration and stable rock breaking.
• Semi-Ballistic Carbide Buttons - Provide a balanced combination of penetration efficiency and wear resistance.
• Optimized Button Configuration - Uses 6 × 14mm + 4 × 12mm + 2 × 10mm carbide buttons (12 pcs total) for effective energy transfer.
• Optimized Face Geometry - Supports effective flushing and chip removal during DTH drilling.
• Stable Drilling Performance - Manufactured for dependable bit life and consistent hole quality in medium-hard to hard rock formations.

Specifications

FAQ

What is the diameter of the CIR90 button bit?
The CIR90 button bit has a 95mm nominal drilling diameter.

What button configuration does this 95mm bit use?
It uses 6 × 14mm + 4 × 12mm + 2 × 10mm semi-ballistic carbide buttons, for a total of 12 buttons.

What is the advantage of the convex face design?
The convex face helps concentrate drilling energy toward the central area of the bit, supporting efficient penetration and stable rock breaking.

What applications is the CIR90 95mm DTH bit suitable for?
It is suitable for mining, quarrying, construction, blast-hole drilling, bench drilling, and general rock excavation.

What type of rock can this DTH button bit drill?
The bit is designed for medium-hard to hard rock formations. Actual performance and service life depend on rock hardness, abrasiveness, drilling pressure, rotation speed, air pressure, and operating conditions.

Contact Us

For more information or a quotation, please contact contact@csrockdrilling.com.