Manufacture and sales of various Motorcycle & Automotive Chains, Industrial Machinery Chains, Rims/Wheels, Conveyor Systems and Welfare Equipment.

Motorcycle Products

Motorcycle products such as drive chains and aluminum wheels produced and delivered under the DID brand have been used by motorcycle manufacturers and the world's most famous races such as MotoGP for many years and have gained high reputation and trust.
Through DID's global network, motorcycle manufacturers worldwide
We supply these products, which are produced using the knowledge gained from challenging races. DID branded products have gained great trust not only in Japan but also in markets around the world, as a testament to the brand's high quality and high performance

• Drive Chain

Drive chain is a chain that transmits power from the engine to the wheels. The D.I.D drive chain is the world's first chain which realized the crossing of American continent by motorcycle using only one chain. In addition, it has been used for many years in world-famous races such as MotoGP, World Endurance Championships, Motocross, Paris-Dakar, and has established the D.I.D brand worldwide.

• Timing Chain

Timing chain is used in motorcycle engines to transmit the rotation of the crankshaft to the camshaft and maintain the proper opening and closing timing of the intake and exhaust valves of the engine (also called a cam chain).
In motorcycle engines, 6.35mm pitch silent chains and bush chains are generally adopted as timing chains. DID timing chains have excellent wear resistance, fatigue strength, quietness, and impact toughness. Therefore, it is also used in motorcycle high-speed range engines both in Japan and overseas.

• Rims/Spokes/Wheels

The DID rim was born from the constant challenge of reducing the weight of the motorcycle machines required in severe motorcycle racing. The successful development and mass production of aluminum-based light alloy rims have created the era of today's light and strong alloy rims.
We supply various spokes to manufacturers according to the purpose of use, and we also supply wheels assembled with rims, spokes and other parts to manufacturers.

• Handle Pipe

Utilizing the aluminum processing technology and surface treatment technology that we have cultivated so far, we are also mass producing and delivering tapered aluminum handle pipes.
The material used is a 7000 series aluminum alloy, and the surface treatment uses alumite treatment, which has been proven in DID rims. We have delivered to the domestic manufacturer such handle pipe having high strength, corrosion resistance and beautiful appearance, just like DID rims.

Timing Chain System

Automobile Engine Timing Chain System

The automobile engine timing chain system is a system for adjusting the timing of the movement of each part in order to properly operate the process of “intake → compression → combustion → exhaust" of the engine.
DID's automotive engine timing chain system has earned a high reputation for meeting the demanding requirements of high-power, compact, high-performance engines, such as excellent wear resistance, fatigue strength, and quietness. In particular, for the 6.35mm pitch silent chain used in small car engines for the first time in the world and diesel engine roller chain , we are leading the global car engine chain market with our own special surface treatment technology.

• Timing Chain

The DID automotive engine timing chain, which has progressed with the development of the automobile industry, has excellent wear resistance, fatigue strength, quietness, and impact toughness, and meets certain requirements necesary for today's high-output, compact high-performance engines. Then It has high reliability.
In particular, our 6.35mm pitch silent chain for automobile engine, which was first adopted for automobile in the world, has been adopting our special surface treatment technology.

• Sprockets

DID sprockets have evolved with the development of the automotive industry. As a sprocket used in automobile engines, the optimal meshing design with the chain suppresses noise and vibration, and its excellent wear resistance contributes to a longer engine life.

• Tensioners

Combination of the hydraulic mechanism and the no-back mechanism suppresses chain vibration due to torque fluctuations during engine operation, and it automatically follows chain wear and growth, then suppresses noise caused by chain flapping when the engine is in a non-hydraulic state at engine start.
The tensioner body uses aluminum for weight reduction.

• Levers/Guides

Levers and Guides are parts that guide the chain in a sliding manner, shape the running trajectory, reduce the free span of the chain, and suppresse vibration.
For strength requirements, it has a body made of glass fiber reinforced plastic, aluminum or steel, and the chain running surface is made of low friction plastic containing fluorine.

Wheels

• Farm Vehicle Wheels

Wheels that have been advancing with the development of Japanese agricultural machinery has been developed by using the know-how of high-precision mold technology, roll forming technology, press technology, and welding technology. Widely used in agricultural machines and industrial vehicles.

• ATV Wheels

For the popular ATV (four-wheel buggy) in the United States, aluminum wheels that have high strength and light weight and that are produced using our press forming and welding technologies are also used.

• Transmission Chains

We provide transmission chains, which transmit power from motors as tension, with various characteristics such as high strength, wear resistance, environmental resistance, and quietness, and they are used in a wide range of fields.

• Small Transport Chain

Chains with attachments with specially shaped plates and pins for transporting objects. It is used in a wide range of fields such as transportation, chemistry, construction equipment, and agricultural equipment.

• Conveyor chains

Large chain for large loads and low-speed transport, with a wide variety of attachments and additional functions, in addition to the standard attachments, depending on the application. Used in a wide range of fields.

Conveyor System

We realize the optimal conveyor with the know-how of the transport chain that has supported the core industry.

We are engaged in a number of conveyor systems in Japan, China, other Asian countries, the United States, Brazil, Saudi Arabia, and other countries, with a focus on conveyor systems for steel plants, cement plants, and automobile plants. In recent years, it has gained a high reputation in the environmental field, such as the "garbage disposal / recycling-related conveyor system", based on many years of experience and know-how

• Powder and Bulk Conveyor System

Powder and bulk conveyor systems, which have been adopted mainly in the cement industry and chemicals, are generating new demand in response to the recent needs for alternative fuels. In such cases, it is important to be familiar with the existing equipment, in addition to the properties and shape of the conveyed goods. Also in this fields, we are providing the best solutions.

Equipment Lineup

• Bucket elevator

• Flow conveyor

• Drag chain conveyor

• Bank conveyor

• Environmental Conveyor System (ECOS series)

In the 21st century, which is said to be the century of the environment, the promotion of a recycling-oriented society has become more active, and new construction and renewal of refuse incinerators and recycling facilities are progressing. We have developed the "ECOS Series" conveyor system, including the world's largest stock feeder, for transporting industrial waste and various recycled resources. We deliver various systems to prefectures nationwide.

Equipment Lineup

• Scraper conveyor
• Apron conveyor
• Apron bucket conveyor
• Pipetted conveyor

• Steelmaking Conveyor System

Conveyors for steelmaking can be broadly divided into conveyors used in the steelmaking field such as sintering plants and coke plants, and conveyors used in rolling equipment. In the sintering and coking plant, measures to reduce friction are required to convey a material with high friction, and we have a lot of delivery records. Rolling equipment is required to transport heavy materials and other high-temperature conditions, and we supply conveyors that meet these specifications.

Equipment Lineup

• Coil conveyor
• Walking beam
• Transporter
• Coil car
• Scrap conveyor

Vacuum conveyor

Basic belt conveyors can basically only carry horizontal or gently sloping, but the EcoCuum can accommodate various layouts such as vertical, turn, and steep by adsorbing lightweight conveyed objects.
EcoCuum sucks air through a gap in the plastic module chain with a fan and creates negative pressure to transport the goods while adsorbing them.

ecocuum

• EcoCuum

Basic belt conveyors can basically only carry horizontal or gently sloping, but the EcoCuum can accommodate various layouts such as vertical, turn, and steep by adsorbing lightweight conveyed objects.
EcoCuum sucks air through a gap in the plastic module chain with a fan and creates negative pressure to transport the goods while adsorbing them.

• Plastic module chain