2. Heat treatment & Dies
  3. Our strength & Machinery and Equipment

Our strength & Machinery and Equipment




Our accumulated skills and knowledge on heat treatment, processing, and quality control enabled us to provide you with long-life dies for various uses.

Dies are used in various kinds of crushers and shredders. So, what customers expect us varies in shape, material, and tolerance in addition to the delivery time. Our pride is to satisfy these customer’s needs with our skills and knowledge.


Our strongest points are:

1. We have a control system for the start-to-finish production that includes the heat treatment process.

2. The materials, our original improved-steel, for dies from φ270 to φ700 are steadily procured.

The best die materials to crush urban wastes and RDF are always ready to be processed.

Our dies are used in many disposal facilities nationwide, gaining high reputation of their long lives.

They reduce the running cost of the facilities and ensure their stable operation.


We make any dies whatever the size, the machine to mount, and other requirements are. Not only for the dies of dual-axis shearing type crushers or uniaxial crushers, but also you can come to us for the dies of imported machines without specifications. Provided the die you actually have as a sample, we can put them in production to supply them stably.

Besides these, if you have any questions on peripheral devices, related products, and maintenance services, feel free to contact us. We will commit ourselves to your requests.


Our 6 strong points(Heat treatment, dies production, crusher maintenance service)

1. Highly competent in heat treatment by using own equipment. (vacuum furnace and tempering furnace)

Skills and knowledge we have acquired for years in heat treatment enabled us to prolong the product lives. By changing steel more tenacious, more abrasion-resistant, and more durable, we produce high-strength products.

The metal heat treatment for special steels has been the core technology in our history.



◎In-house hardening of forming rolls


◎In-house hardening of cutters made of special steel and other dies.





      Forming Roll        Hydraulic Bollard AEPB-3270D      Steel Plate Barricade

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Taking advantage of the high-level skills and knowledge on metal heat treatment of special steel dies, 

we have been improving hardening quality of forming rolls, bollards, and other in-house products.



2. Highly competent in manufacturing dies for uniaxial, dual-axis, triple-axis, and quadruple-axis crushers.

We produce dies for any crushers; uniaxial, waste plastic, wood debris, secondary crushing of tires, tertiary crushing, combustible wastes, incombustible wastes, drum crushers, and etc.

In addition to SKD, chromium molybdenum steel, high speed steel, carbide, and other imported materials including Swedish steel can be used to meet individual needs.


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3. Highly competent in manufacturing dies, spacers, and shafts.

We manufacture high-precision products with our sophisticated technology.

We have also confidence in die replacement.



4. Highly competent in die repairing and hard surfacing 

We can repair worn dies to use again.





5. Highly competent in die replacement (of crushers)


6. We can remove the axis-units from your crushers and bring them in our factory to renew the dies.

We, as an engineering company, are ready to meet your various needs. 


When we produce new dies, we start with making a suggestion about suitable materials. 

Then we go on to procurement, processing, heat-treatment using the in-house equipment, grinding, and finishing before final inspections. 

Because we have own equipment, we can satisfy customers in quality, delivery time, and cost.



Human resources


For further improvement of our heat treatment skills, we encourage our workers to take the National Trade Skill Test of metal heat treatment, recognizing the importance of passing down the skills to the next generation. Now we have the number of qualified workers as listed below. 

 Qualified as the 1st grade・・・1

 Qualified as the 2nd grade・・・2



Heat Treatment equipment

Quenching furnace



Vacuum Heat Treatment Furnace with Pressure Gas Quenching & Convective Heating

by Koshuha Co., Ltd (DEMTEC)

Capacity 1. Charge:1,500kg (Including baskets)

1. Quenching die steel, heat-resisting steel, bearing steel

※Particularly suitable for quenching of dies and cutters.

2. Safe and reliable quenching machine to realize high efficiency and quality.


Tempering Furnace



Tempering Furnace….5 batch type electric furnaces

Capacity 1. Charge:1,500kg (Including baskets) …2

1. The automatic carrier device attached to the furnace enables unattended operations for both tempering and cooling.

2. Its temperature-consistent heater and a stirring fan assure the inside temperature stable for a given length of time at a given temperature. 


Sub-zero Furnace



Sub-zero Cryogenic Liquid Nitrogen Tempering Furnace EL-510



Max. load weight: 1,000kg


Super sub-zero treatment at the temperature of -130℃is our standard. Cryogenic treatment is applicable. The quenched steel can be more effectively treated by cooling by nitrogen gas temperature controlled by the sub-zero device. 


Effect 1.The treatment slows the product deterioration and equalizes the hardness at the temperature of approximately -80℃ 

Effect 2.The sub-zero treatment below -130℃ enhances the abrasion resistance property.



Grinding Machines

Surface Grinding Machine



Surface Grinding Machine by Sumitomo Heavy Industries Finetech, Ltd.

Capacity 2,000×800

Capable of grinding after quenching.

Die steel, wear resistant steel, molybdenum steel and etc. can be grinded.




Surface Grinding Machine



Vertical Spindle Rotary Surface Grinding Machine - SVR Series by Sumitomo Heavy Industries Finetech, Ltd.

Capacity Magnetic chuck table diameter  φ1100mm

Capable of grinding after quenching.

Positioning instrument by Marposs is attached.





Business & Products

The No-toolchange Cold Roll Forming Machine BURS21
BURS21 is developed as a part of our corporate brand strategy, “Beauty follows Functions”. The beautiful design of BURS21 creates totally new working environment for old-fashioned roll forming plants. We believe this machine triggers innovations in production sites in Japan.
The next-generation tube mill, the Fine Tube Mill Line, is our solution to the shortage of experienced operators. FTL, designed not to rely on the skills of individual operators, allows any operators to perform high precision processing with low cost.
Forming rolls
Our forming roll division completes all processes from designing, heat treatment, and machining, to test runs of forming rolls, having one of the best total in-house production systems in the industry.
Forming Machines, Tube Mill Machines, Special-Purpose Machines
We do not just make machines but design, produce, run trial tests, and provide services after delivery. By joining your planning process, we meet your request totally. We have unique skills that other company can't compete with.
Bollard, Car/Bicycle Parking lots, and Devices
We provide you with self-service car parking control systems that are more eco-friendly, more human-friendly, easier, and safer and bollards with enhanced quality and safety.
Heat treatment & Dies
Our skills and knowledge accumulated for years enable us to manufacture the wide range of products from dies to cutters of shredder, crusher, and etc. These dies are crystallization of our relentless efforts.
Park’n park
An affiliate company, Park’n park, aspires to contribute to the local communities with our 24-h self-service car/bicycle parking lots.

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