With the availability of multi-item small-lot production, Crater can meet the detailed needs of customers. Crater supports the grinding and polishing of aluminum, castings, and other hard-to-machine materials.

Our company produces mainly various types of rolls, including a range of precision leveler rolls for steel sheet production lines. These rolls require accuracy on the order of several microns, and we deliver these highest-quality products to our customers every day. We are capable of integrated in-house production at our two plants, with cylindrical cutting and grinding being performed at our main plant, and hard chrome plating being performed at our Funakoshi plating plant.

Our company possesses the special technology for integrated production, including assembly, of auxiliary transmissions for special automotive use. We use NC machinery and other equipment for small-volume production of a variety of parts, responding to our customers’ needs for processing and grinding of precision parts.

We are engaged in integrated production of machine tools, including design, manufacturing, and assembly.We are also capable of producing OEM products, and are particularly skilled at high-precision processing. We supply our own materials for can-making, annealing, machining, grinding and finishing to produce various parts and unit kits as finished products that we deliver to our customers. We have also established a new factory exclusively for mass production to meet your needs.

We process and assemble mid/small-sized angular shaped parts and various cases. We offer high quality products within the terms and costs our customers request. Also we provide a service of polishing and adjusting the spindle. We polish and adjust the internal taper holes of the spindle (BT50, BT40) such as NC milling cutters, machining centers in a short time and at low cost. We offer this service on site across Japan, and since April 2009 even in Thailand. Please contact us for a quotation if you have some trouble in your machine tools such as vibrations, inaccurate processing, or damage caused by hitting the spindle.

Dedicated to achieving higher quality, shorter delivery times, and lower costs! We are particularly skilled in the manufacture of precision gears. We manufacture ``male'' and ``female'' products such as square splines and serrations using gear cutting machines, wire-cut electrical discharge machines, and NC slotters. Please consult with us about requests concerning not only gears, but also any kind of machined products no matter how difficult. We are confident that we can meet your request using the latest equipment and advanced technologies of our company and of our many cooperating companies. 《Nikami Manufacturing is an engineering group where we truly enjoy the art of production.》

Have you ever considered the monuments that you see every day in parks and public places, or the information signs and decorative signs that you see in city spaces? These and other items like them are important factors that help to shape the face of a city. Our business is giving life and function to each of these items. Our primary three concerns are trust, valuing the bonds of confidence that we have created with our customers, accuracy, focusing on consistent craftsmanship and strict quality control, and speed, generating cost performance which raises production efficiency, in accordance with the sign business integration between the head plant and the flower green plant. Our business philosophy is anchored in these three concepts, as we gather together utmost energy to devote to the creation of comfortable life spaces.

Polishing materials for dentists and dental technicians, which are called “paper cones,” are made of sandpaper rolled up into conical or cylindrical shapes. Usually an original paper cone has no shaft, and a fork end shaft sold separately is used. However, a small-sized Mini Cone is supplied with its specified fork end shaft, and other products such as Sharp Mini and Sharp Cone are supplied with an Ohki-invented wood screw type shaft exclusive to fitting. The characteristic is its sharp conical shape and strong retention with low eccentricity. As for an articulating paper for dentists, we are the only company in Japan which uses thick Japanese paper, Washi. The articulating paper is a product into which non-dry ink with rich coloring matter like blue or red is interfused and adsorbed by brushing. By using the paper, coloring can be achieved enough to the occlusion position where pressure is applied, and the grade of pressure can be also indicated. We sell the polishing materials to dentists and dental technicians on a nationwide scale via wholesale shops of dental materials.

With a quality assurance system that has acquired ISO 9001 certification, Ohmori Technos Corporation produces high-quality, high-accuracy, ultraprecise products by making use of NC control facilities and production capabilities cultivated over the years. Ohmori specializes in manufacturing oil pumps, developing its own oil pumps via a system that is integrated from processing to assembly.

In the 100 years since our founding, we have become specialists in the machining industry. We have also accumulated vast technical knowledge and special skills, and formed a broad machining network. Determined to offer ideas and technologies that none can rival, meeting the needs of customers with our expertise and years of experience.

We mainly engaged in surface processing such as metal processing, HVOF thermal spraying, alumite treatment,SEP processing etc. of precision machining and polishing processing, etc.In precision machining / polishing processing, we flexibly respond to customer's needs from large lot to various kinds of small lot.In HVOF thermal spraying, we adopt advanced technologies such as processing of airplane parts and thermal spraying on resins.As for alumite treatment, lubricating alumite, water repellent alumite, etc. in addition to hard alumite are performed.Having been pursuing "melting" technology for SEP treatment, we remove fine burr of metal parts such as iron, stainless steel and copper.These technologies have allowed us to create a system for integrated production from machining to finishing.

With a variety of forming technologies centered around cold forging, Sigma combines multiple forging techniques to offer optimum design and high-efficiency production. Sigma responds to customers' needs in all areas of forming, cutting/grinding and electric/electronic technology.

A manufacturer of needles for hand sewing, marking pins, and crochets for lace knitting. After developing the production technology needed to produce inspection probes for printed circuit boards, in recent years we have seen the results as an increase in orders for test probes to be used on bare boards and mounted circuit boards. Our Kake Plant is a JIS (Japanese Industrial Standards) certified plant permitted to use the JIS mark on the products.