#Japan #Tokyo #Kato Works #HD820-9 #REGZAM Series

Kato Works Unveils the HD820-9

Kato Works, headquartered in Shinagawa, Tokyo, is set to launch its latest hydraulic excavator, the HD820-9, in July 2026. This model represents the second phase of the revamped REGZAM series, specifically designed for construction site efficiency and effectiveness. With evolving demands for environmental sustainability and operational safety, Kato Works has prioritized performance and comfort in the design of the HD820-9.

Development Background

The construction industry continuously seeks to minimize environmental impact and improve fuel efficiency. There is a growing need for equipment that enhances operational efficiency, safety, comfort, and maintenance ease. The 20-ton hydraulic excavator is a workhorse in various projects, from infrastructure to earthworks, demolition, and loading, making it crucial for daily tasks. The new REGZAM series aims to meet these demands by ensuring that the HD820-9 maintains its predecessor's robust operational capabilities while introducing advancements in stability and usability.

Key Features of HD820-9

1. Enhanced Work Performance

Kato Works has retained the acclaimed engine from previous models while upgrading to a cutting-edge hydraulic control valve. This new system promises stronger, smoother operation, significantly reducing stress and enhancing work speed. Notably, during 90-degree swing waste digging in Power Mode, the HD820-9 achieves a 6% reduction in fuel consumption and a 3% shorter cycle time.

Moreover, the excavator supports a wide range of attachments, thanks to its expandability, allowing it to adapt to various work environments seamlessly.

2. Environmental Considerations

Equipped with a new clean engine that complies with both Japan's Special Heavy Vehicle Emission Regulations (2014) and the European Stage V emission standards, the HD820-9 aims to set new benchmarks in emission control. It has also received designation as a 'Super Low Noise Construction Machine' by the Ministry of Land, Infrastructure and Transport, boasting noise levels that are 6dB below specified standards. Additionally, the excavator meets the 2020 fuel efficiency standards, achieving a ☆☆☆ rating under the Ministry's certification system, showcasing its commitment to sustainability.

The inclusion of an exhaust after-treatment unit (DOC + DPF + SCR) ensures a significant reduction in harmful emissions, enhancing the machine's ecological footprint.

3. Durability and Maintenance

Durability has been prioritized in the HD820-9 with high-performance sintered bushes for boom and arm joints, improving grease retention and longevity. The revamped swing motor also marks a 35% increase in durability. To facilitate easier routine checks and maintenance, various filters have been consolidated in the engine compartment for easy access.

4. Comfort in the Cabin

A redesigned frame enhances mud ejection while ensuring durability. The cabin size has been optimized for increased footroom and ease of entry, which greatly enhances operator comfort. Continuing the legacy of Kato's acclaimed APC control system, the excavator now features a touch panel that allows operators to fine-tune working modes and hydraulic flow for attachments. Furthermore, the new split-type floor mats simplify cleaning, making maintenance more straightforward.

5. Safety Innovations

The HD820-9 includes a 7-inch wide LCD panel that expands the camera display area by 91%, improving visibility during operations. It also features side defrosting capabilities to prevent fogging and frost on windows, enhancing the operator's safety. An optional human detection surround view system can help reduce the risk of accidents by identifying individuals near the machine.

6. Security and Management

With the introduction of the telematics system