Komatsu expands line of hydraulic breakers

25 May 2021 CW Team

Komatsu Ltd has designed G and H-Series breaker adjuncts for expanding their production in various applications.

From breakers Komatsu's PC78 up to the PC490 fit excavators with a capacity of 5.5-50 metric tons.

Komatsu G-Series breakers stress on a design that combines hydraulic flow and pressure with a nitrogen-filled chamber. They only consist of two parts for durability and easier maintenance.

The breakers can be enabled to handle tough rock and concrete jobs by creating them using tie-rod design. Standardised blank firing protection is a must. By the use of a hydraulic cushion in the cylinder metal-to-metal contact can be reduced.

The producers of these hydraulic breakers designed the larger breakers with key slot dampers to minimise the production of vibration to the excavator.

The new hydraulic breaker by Komatsu JMHB130H is compatible with the excavators PC130 and PC138USLC by the company itself.

Komatsu H-Series comes with accumulator-type breakers that work without the need for nitrogen recharge. They also consist of blank firing protection. Sound-dampening housings and a pressure regulator are the additional features of this breaker including preventing overflow.

A dampening system has been included to prevent damage to the excavator boom and housing cracks.

Komatsu also uses a single power cell that eliminates tie rods to make these breakers compatible with medium-sized excavators as it creates a better weight-to-power ratio.

The H-Series breakers also have a built-in automatic lubrication system. Both the hydraulic breakers G-Series and H-Series come with a one year warranty.

Image Source

Also read: Ditch Witch introduces MT26 micro trencher

Also read: BEML launches mechanical minefield marking equipment MK-II

Infrastructure Transport

06 Feb 2026

Lucknow Metro East-West Corridor Consultancy Contract Awarded

The Uttar Pradesh Metro Rail Corporation has awarded the first construction-related consultancy contract for the Lucknow Metro East West Corridor to a joint venture of AYESA Ingenieria Arquitectura SAU and AYESA India Pvt Ltd. The firm was declared the lowest bidder for the Detailed Design Consultant contract for Lucknow Metro Line-2 under Phase 1B and the contract was recommended following the financial bid. The contract is valued at Rs 159.0 million (mn), covering design services for the corridor. Lucknow Metro Line-2 envisages the construction of an 11.165 kilometre corridor connecting Cha..

Div Com Kashmir Urges Fast Tracking Of Jhelum Water Transport Project

The Divisional Commissioner of Kashmir has called for the fast-tracking of the Jhelum water transport project, urging district administrations and relevant agencies to accelerate planning and clearances. In a meeting convened at the divisional headquarters, the commissioner instructed officials from irrigation, public health engineering and municipal departments to prioritise the project and coordinate survey and design work. The directive emphasised removal of administrative bottlenecks and close monitoring to ensure timely mobilisation of resources and contractors. Officials were told to in..

Interarch Reports Strong Q3 And Nine Month Results

Interarch Building Solutions Limited reported unaudited results for the third quarter and nine months ended 31 December 2025, recording strong revenue growth driven by execution and a robust order book. Net revenue for the third quarter rose by 43.7 per cent to Rs 5.225 billion (bn), compared with Rs 3.636 bn a year earlier, reflecting heightened demand in pre-engineered building projects. The company’s total order book as at 31 January 2026 stood at Rs 16.85 bn, supporting near-term visibility. EBITDA excluding other income for the quarter increased by 43.2 per cent to Rs 503 million (mn),..