Product Specification

KOMATSU JTHB Series Hydraulic Breaker Chisel for Concrete and Rock Breaking

The KOMATSU JTHB Series Hydraulic Breaker Chisel is a professional working tool designed for KOMATSU JTHB Series hydraulic breakers. As the direct contact component between the hydraulic breaker and the working material, the chisel transfers impact energy generated by the piston into concrete, rock, asphalt, and other hard materials.

KOMATSU is a global manufacturer of construction and mining equipment, with products widely used in construction, demolition, quarrying, and mining industries. Hydraulic breaker chisels are critical wear parts that directly influence breaking efficiency, tool durability, and overall equipment performance.

During operation, the JTHB Series chisel is subjected to repeated high-energy impacts, friction, and side loads. Therefore, the material strength, heat treatment quality, and machining accuracy are essential for achieving stable working performance and longer service life.

Our KOMATSU JTHB Series Hydraulic Breaker Chisels are manufactured from high-strength alloy steel with optimized forging, heat treatment, and precision machining processes. The improved material structure provides excellent impact resistance, wear durability, and fatigue strength for demanding applications.

Available in different profiles including Moil Point, Wedge Type, Blunt Type, and Flat Type, our replacement chisels provide reliable solutions for various working conditions, from hard rock excavation to concrete demolition.

Designed according to OEM-compatible specifications, our KOMATSU JTHB Series chisels are suitable for hydraulic breaker repair, maintenance, and replacement applications.

Product Types

Moil Point Chisel

The Moil Point Chisel features a pointed working tip that concentrates impact energy into a smaller area.

Advantages:

• Strong penetration ability
• Excellent for hard rock breaking
• Efficient impact transfer
• Suitable for concentrated breaking force

Applications:

• Rock excavation
• Quarry operations
• Foundation breaking
• Hard material demolition

Wedge Chisel

The Wedge Chisel uses a blade-shaped design for cutting and splitting materials.

Advantages:

• Excellent cutting performance
• Efficient concrete separation
• Stable breaking effect
• Suitable for trenching applications

Applications:

• Concrete demolition
• Road repair
• Utility trenching
• General construction

Blunt Tool

The Blunt Chisel provides a larger impact surface for crushing applications.

Advantages:

• Strong crushing performance
• Good impact distribution
• Suitable for oversized concrete blocks
• Reduces deep penetration into soft materials

Applications:

• Secondary crushing
• Heavy demolition
• Concrete breaking

Flat Chisel

The Flat Chisel provides a wider contact surface for surface removal and cutting applications.

Advantages:

• Wide working area
• Stable cutting performance
• Suitable for surface demolition

Product Features

High-Strength Alloy Steel Material

Our KOMATSU JTHB Series chisels are manufactured from premium alloy steel, providing:

• High impact resistance
• Excellent wear resistance
• Strong fatigue durability
• Stable mechanical properties
• Long working life

Professional Heat Treatment

Advanced heat treatment improves:

• Surface hardness
• Internal toughness
• Crack resistance
• Impact durability

Allowing the chisel to withstand continuous high-frequency impacts.

Precision Machined Shank

Accurate machining ensures:

• Proper fit with breaker bushings
• Stable installation
• Reduced abnormal wear
• Efficient energy transmission

Optimized Tool Design

Different chisel profiles provide solutions for:

• Hard rock breaking
• Concrete demolition
• Asphalt removal
• Infrastructure construction

Applications

Construction Industry

KOMATSU JTHB Series breaker chisels are widely used for:

• Concrete demolition
• Building renovation
• Foundation breaking
• Road construction

Mining and Quarrying

Suitable for:

• Rock excavation
• Quarry production
• Stone breaking
• Mining maintenance

Infrastructure Projects

Used in:

• Highway construction
• Underground engineering
• Civil construction

Why Choose Our KOMATSU JTHB Series Chisel?

Professional Hydraulic Breaker Parts Manufacturer

Since 2008, we have specialized in hydraulic breaker spare parts manufacturing and provide aftermarket solutions for global customers.

Compatible brands include:

• KOMATSU
• Doosan
• MSB
• Rammer
• Atlas Copco
• Epiroc
• Montabert
• JCB
• Indeco
• Daemo
• Everdigm

Advanced Manufacturing Process

Our chisel production includes:

1. High-strength alloy steel selection
2. Precision forging
3. Heat treatment
4. CNC machining
5. Hardness inspection
6. Final quality checking

Ensuring consistent performance and durability.

Complete Hydraulic Breaker Spare Parts Supply

Besides KOMATSU JTHB Series chisels, we also supply:

• Pistons
• Cylinders
• Front Heads
• Back Heads
• Bushings
• Seal Kits
• Diaphragms
• Rod Pins
• Tool Retainers
• Through Bolts
• Side Bolts
• Buffers
• Wear Plates

Providing complete hydraulic breaker maintenance solutions.

Technical Specifications

Frequently Asked Questions

Q1: What is a KOMATSU JTHB Series hydraulic breaker chisel?

A hydraulic breaker chisel is the working tool installed at the front of the breaker. It transfers piston impact energy to break concrete, rock, and other materials.

Q2: Which chisel type should I choose?

• Moil Point: Suitable for rock penetration and hard materials.
• Wedge: Suitable for concrete cutting and splitting.
• Blunt: Suitable for crushing large concrete blocks.
• Flat: Suitable for surface removal work.

Q3: What material are KOMATSU JTHB Series chisels made from?

Our chisels are manufactured from high-strength alloy steel with professional heat treatment for improved wear resistance and impact durability.

Q4: When should a hydraulic breaker chisel be replaced?

Replacement is recommended when the chisel has excessive wear, cracks, deformation, mushrooming, or reduced breaking efficiency.

Q5: Do you supply other KOMATSU hydraulic breaker parts?

Yes. We supply complete KOMATSU hydraulic breaker replacement parts, including pistons, bushings, cylinders, seal kits, bolts, and other wear components.