TNK's ultra-precision machining

1/10,000mm

The World of One-Tenth Microns. Freeing you from the Dilemmas of Manufacturing.

Company profile and product informationrequest materials

Prototype consultation and inquiriesConsult first

OUR MIND

Customers
Freeing Customers from the "Manufacturing Dilemma"
Free from

We work with many major companies, and during the product design and development phase, their engineers often face technical challenges that require repeated trial and error to overcome.

We aim to be the best partner for these engineers.We strive to solve various problems for our customers using the technical capabilities we have honed since our founding.

request

Do you have such requests
issues like these?

NO.1

request

Although the drawing is complete, extremely high precision is required, and we aim to minimize errors during the manufacturing process.

NO.2

request

I want to create a truly special product and finish it with careful attention to detail and no compromises. This is a custom-made request.

NO.3

request

We would like to receive technical advice and place emphasis on early-stage confirmation. We are also interested in trying small-lot production.

CONTACT US

We've got you covered

With our ultra-precision processing technology—capable of achieving accuracy down to one ten-thousandth of a millimeter—we have earned the trust of many customers across various industries. Regardless of industry, application, or material—including mobility, information and communications, and healthcare—we offer a wide range of custom machining solutions. These include parts that require not only miniaturization and downsizing, but also enhanced durability and weight reduction. Backed by extensive know-how, we can provide technical proposals and produce small-lot prototypes to support your development needs. Please feel free to contact us for a consultation.

029-866-0811Reception hours: Weekdays 9:00 - 17:00

Company profile and product information

Request for brochure

Prototype consultation and inquiries

Inquiry

TECHNOLOGY

Technology of TNK

precision

TNK TECHNOLOGY

Pursuit of high precision

TECHNOLOGY - 01 / 04

Pursuit of Ultra-precise

We have perfected centerless grinding as our core technology, achieving processing accuracy of ±XNUMX mm—something that few others can replicate. Building on this ultra-precise grinding capability, we combine a variety of in-house processes such as cutting, heat treatment, and plastic forming to deliver products that meet the highest customer expectations. We are also deeply committed to the development of new technologies, continually striving to achieve even greater precision and quality.

quality

TNK TECHNOLOGY

Commitment to quality

TECHNOLOGY - 02 / 04

qualityCommitment to Quolity

A Quality Control System That Tolerates No More Than One Defect in a Million Using high-precision measuring instruments capable of measuring outer diameters with a resolution of XNUMX mm, we are able to accommodate orders that require ultra-high precision. In addition, we are equipped with a wide range of measurement tools, including image measuring systems, roundness testers, surface roughness testers, hardness testers, and more. With TNK’s proprietary know-how, we can support a wide variety of measurement needs and deliver products that meet the highest standards of reliability.

Flexible

TNK TECHNOLOGY

Flexible production system

TECHNOLOGY - 03 / 04

flexibleI

To meet the diverse needs of our customers, we are equipped with a wide range of processing machines, including those developed in-house. Our team includes experienced professionals with deep expertise in each process—experts who understand the entire manufacturing workflow and work closely together to deliver the optimal solution.

response

TNK TECHNOLOGY

Flexible and quick response

TECHNOLOGY - 04 / 04

　
Fast and Flexible Response to Prototype Changes　

With over XNUMX skilled engineers on our team, we can propose the optimal processing methods based on extensive knowledge and experience. All processing steps are performed in-house, enabling us to offer short lead times and reduced costs. We support small-lot prototyping, starting from just a single piece. Through repeated consultations on materials and shapes, we work closely with our customers to develop products that truly meet their expectations.

case study

Works

As a result of our ongoing commitment to solving customer challenges, we have developed custom metal processing technologies capable of ultra-high precision at the sub-micron level. Here are some examples of our work.

Aerospace and Next Generation Mobility

hollow shaft - Lightweight shaft -

Optimal construction method &
Propose a solution

53% weight reduction
245g → 115g

To meet our customers’ development needs, we offer hollow shafts in addition to solid shafts. After machining, the hollow shafts are laser-welded to achieve weight reduction.

Robots and Industrial Machinery

Roller/Needle - High precision -

Targeting the outer diameter

Diameter difference:0.0001mm
Roundness:0.0001mm
Surface roughness:Ra0.02

By producing only the specified grade in our process, we significantly reduced the labor required for the customer’s sorting and classification.

Robots and Medical Healthcare

Slide Screw Unit - High efficiency and long life -

Special synthetic resin nut and
Grinding screw
High efficiency and long life

Screw Efficiency 1.4Double(Compared to other companies)
Durability2.5Double(Compared to other companies)

Clearance can be controlled to 2μm or less (20μm to 40μm range can be specified). Nut = PPS + CF (carbon fiber) / Ground screw = SUS420J2 Endurance test distance 500km or more (25N load).

Mobility

D-cut shaft - High efficiency and mass production -

In response to customer requests to increase production capacity, we developed highly efficient processing equipment in-house.

300XNUMX pcs/month
production system achieved.

With over 100 grinding machines in operation, we also develop our own equipment to meet a wide range of customer needs and ensure highly efficient mass production.

CONTACT US

We've got you covered

029-866-0811Reception hours: Weekdays 9:00 - 17:00

Company profile and product information

Request for brochure

Prototype consultation and inquiries

Inquiry

Steps for ordering

FLOW

STEP 01

Contact

Even if you only have a rough idea, we’re happy to help. Please don’t hesitate to contact us.

* It would be helpful if you could provide us with a drawing, the required quantity, materials, delivery date, cost estimate, etc.

STEP 02

Meeting

We will review the feasibility of the request internally, and if necessary, we will arrange a meeting to discuss the details.

STEP 03

Quotation

We will provide you with a quotation for a prototype.

STEP 04

How to place an order

Once the details are decided, please place your order.

STEP 05

Prototype delivery

We will deliver the prototype.
Please provide your product evaluation, etc.

*If you are interested in establishing a regular business relationship, please contact us directly for further information.

FAQ

List

What are the features of TNK?: To accommodate a wide range of precision metal parts, we have the technology and equipment to perform various processes—including cutting, plastic forming, grinding, and heat treatment—all within an integrated production system.
We have particular strength in grinding, and with our proprietary technology and equipment, we have the capacity to mass-produce world-class, high-precision parts—with 0.1 µm accuracy—at a scale of several million pieces per month.
Is heat treatment possible?: We have multiple in-house heat treatment facilities, including vacuum furnaces, vacuum carburizing furnaces, and continuous heat treatment furnaces. The most suitable heat treatment method can be selected based on the shape and characteristics of the part, as well as your specific requirements. In addition to hardening, we also offer carburizing, carbonitriding, and aging treatments. Please also take a look at our proprietary "SVC treatment," which provides both non-magnetic properties and high hardness.
Can I still order from a remote location?: We serve the whole country, including overseas.
Can you also make prototypes?: We support our customers from the conception, planning and development stages of their products.
Furthermore, by providing support from the product planning and development stage, we are able to identify potential issues early on and propose improvements before mass production begins.
For the mass production phase, we have developed specialized equipment and established a system that enables us to deliver products with stable quality at lower cost. One of our key strengths is our ability to provide support from the planning stage through to the end of the product lifecycle.