1. Construction Machinery and Attachments

Attachment

An attachment is a work tool mounted on the end of construction machinery such as a hydraulic excavator. By changing attachments according to the application, operators can perform a wide range of tasks, including excavation, crushing, cutting, and material handling. OKADA AIYON develops, manufactures, and sells a variety of attachments, with a particular focus on demolition attachments.

Hydraulic Excavator

A hydraulic excavator is a construction machine used for excavation, loading, demolition, and other operations. Machines are generally classified by operating weight, such as 20-ton, 50-ton, and 100-ton classes, and are used in combination with attachments suited to the task and jobsite. Models range from 20-ton machines commonly seen on construction sites to ultra-large machines exceeding 100 tons used in the demolition of large buildings and social infrastructure. By changing attachments, hydraulic excavators can perform various tasks, including excavation, crushing, cutting, material handling, and log handling.

Demolition Attachment

A demolition attachment is a general term for work tools mounted on construction machinery such as hydraulic excavators and used for the demolition of buildings and social infrastructure.

Crusher

A crusher is an attachment that uses powerful hydraulic force to crush and cut concrete, reinforcing bars, and structural steel. OKADA AIYON offers three types of crushers to suit different demolition targets and work processes: primary crushers, secondary crushers, and steel cutters.

Primary Crusher

A primary crusher is a type of crusher used for the initial demolition of reinforced concrete (RC) structures. With its powerful crushing force, it is used to break down columns, beams, walls, and other structural components.

Secondary Crusher

A secondary crusher is a type of crusher used to further reduce concrete debris after primary crushing. It helps separate reinforcing bars from crushed concrete, improving recycling and material handling efficiency. Some models can be equipped with magnets to recover steel efficiently.

Steel Cutter

A steel cutter is a type of crusher designed to cut structural steel and other metal materials used in buildings, industrial plants, and ships. It contributes to safer and more efficient demolition operations.

Hydraulic Breaker

A hydraulic breaker is an attachment mounted on a hydraulic excavator and used to break concrete, rock, and other hard materials. It is widely used in demolition, road construction, and quarrying applications.

Grapple

A grapple is an attachment used to grip, sort, load, and move concrete debris, waste materials, and scrap generated during demolition. In addition to improving recycling efficiency, grapples are also used for debris removal in disaster recovery operations.

Screening Bucket

A screening bucket is an attachment used to separate soil, rubble, and other materials by size at demolition and site development projects. It enables efficient sorting of reusable materials, contributing to waste reduction and resource recovery.

Coupler

A coupler is a device installed between a hydraulic excavator and an attachment, allowing attachments to be changed quickly and safely. It improves productivity at jobsites where multiple attachments are used. OKADA AIYON offers products such as the SE Coupler, which utilizes cast steel components similar to those used in its primary crushers and steel cutters.

2. Forestry and Environmental Machinery

Forestry Machinery

Forestry machinery refers to machinery and attachments used for logging, processing, yarding, transportation, and forest road development. As Japan’s forests are often located in steep terrain and the forestry sector faces labor shortages, demand for mechanization continues to grow. OKADA AIYON’s product lineup includes timber grapples, processors, winches, swing yarders, forwarders, and hybrid buckets.

Timber Grapple

A timber grapple is an attachment used to grip, move, stack, and load logs. It is widely used at forestry sites, timber yards, and wood chip facilities.

Processor

A processor is a forestry machine used in the processing stage to delimb, measure, and cut felled trees into logs. It improves productivity and reduces labor requirements in timber processing operations.

Winch

A winch is a forestry machine used in the yarding stage to pull felled timber by winding a wire rope. It improves productivity and reduces labor requirements, particularly in steep or difficult terrain.

Swing Yarder

A swing yarder is a forestry machine that uses wire ropes to collect and move felled timber during yarding operations. It improves productivity, reduces physical workload, and enhances safety in challenging forest environments such as steep slopes.

Forwarder

A forwarder is a forestry machine used to transport processed logs by loading them onto a cargo bed and carrying them out of the forest. It contributes to more efficient timber transportation operations.

Hybrid Bucket

A hybrid bucket is a forestry attachment that combines the functions of a grapple and a bucket. It is used for forest road construction and maintenance, timber collection, stump removal, and excavation. Models equipped with a cutting blade can also be used for tree felling.

Large-Scale Environmental Machinery

Large-scale environmental machinery refers to equipment used to shred, sort, and recycle wood waste, thinning materials, demolition debris, and other resources. OKADA AIYON primarily supplies imported equipment such as wood shredders and sorting machines. Processed wood materials can be reused as biomass fuel or recycled products.

Cable Crane

A cable crane is a system that transports timber, materials, and construction equipment through the air by suspending carriers from wire ropes stretched across valleys or slopes. In addition to forestry applications, cable cranes are used at dam, erosion-control, and power plant construction sites. Their ability to transport heavy loads without roads or rails makes them particularly useful in mountainous regions and large civil engineering projects.

3. Markets

Demolition Market

The demolition market encompasses the demolition of buildings, social infrastructure, industrial plants, and ships. Products used in this market include crushers, hydraulic breakers, and grapples. In Japan, demand is supported by the renewal of aging buildings and infrastructure, urban redevelopment, and plant replacement projects.

Forestry Market

The forestry market covers forest cultivation, logging, processing, yarding, transportation, and forest road development. Forestry machinery and attachments such as timber grapples, processors, winches, swing yarders, forwarders, and hybrid buckets are used in this market. Demand is driven by the promotion of domestic timber utilization and efforts to improve forestry productivity.

Environmental Machinery Market

The environmental machinery market consists of equipment used to shred, sort, and recycle wood waste, industrial waste, and construction by-products. Typical products include wood shredders, sorting equipment, screening machines, and large-scale recycling machinery.

Overseas Markets

In this glossary, overseas markets refer to the markets in North America, Europe, and Asia where OKADA AIYON operates, primarily in the demolition sector. In North America, hydraulic breakers are among the key products for construction and demolition applications. In Europe, grapples and other products support recycling and resource circulation. In Asia, demand is driven by urbanization and infrastructure development. Market conditions and product requirements vary significantly by region.