Centerless Grinding

Centerless Grinding

Centerless grinding has been part of our core machining capabilities for over 10 years, providing ultra-fine OD surface finishes and ultra-tight OD tolerances for our customers. We provide production lead times as short as 24 hours for outside diameter centerless grinding, and can supply small volume runs and high volume requirements.

We offer Thru Feed centerless grinding for machined metal parts that require grinding of the major outside diameter. When there are no “centers” on the component, and only the outermost diameter needs to be ground, the parts can be fed down a chute and between two grinding wheels that spin the part to remove material the surface.

Workpiece Size And Tolerances

Our Thru Feed centerless grinding services handle part diameters from .065″ (1.65 mm) to 1.5″ (38.1 mm) for a vast range of part lengths and offer maximum efficiency at minimal cost.

  • Maximum efficiency grinding
  • Minimum cost grinding
  • Grinding after heat treating eliminates distortion


Providing exceptional finishes and tight OD tolerances often requires centerless grinding after CNC Swiss Turning of precision machined components. We continually invest in our equipment and capabilities to uphold this standard and adapt to meet our customers’ evolving needs.

There is no minimum order quantity requirements at TDB Vietnam.Our services can support you scale from one-off prototypes all the way to mid- and high-volume production.
Each project is assigned a technical sales manager and a lead project engineer, who will be there from project launch to the delivery of your parts.
TDB Machining gives you instant pricing and lead times for your custom parts. There are two ways get a quote and DFM feedback from our sales team. 1.Upload one or more 3D CAD file on our Get a Quote page 2.Send one or more 3D CAD file directly to In most cases, we respond Quotation within 24 business hours of receiving an RFQ. If the quote is delayed, we will notify you as soon as possible.

1. Skilled Workforce

One of the critical factors driving the growth of steel fabricators in Vietnam is the availability of a highly skilled workforce. The country boasts a large pool of talented engineers and technicians with expertise in metal fabrication. Moreover, Vietnam has significantly invested in vocational training and education programs to strengthen its workforce further.

2. Competitive Pricing

Outsourcing metal components to Vietnam allows businesses to save on manufacturing costs without sacrificing quality. Vietnamese steel fabricators offer competitive pricing, making it an attractive option for companies seeking to reduce production expenses. The lower labour and raw materials cost in Vietnam allows steel structure manufacturers to deliver high-quality products at a fraction of the price compared to manufacturers in more developed countries.

3. Favorable Government Policies

The Vietnamese government has implemented several policies to promote the growth of the steel fabrication industry. These include tax incentives, low-interest loans, and support for infrastructure development, all of which have contributed to the rise of steel fabricators in the country.

4. Customized Solutions

Vietnamese steel structure fabricators and manufacturers provide tailored solutions to meet the specific needs of their clients. They work closely with customers to understand their requirements and offer customized designs, ensuring that the final product aligns with the client’s vision. This level of flexibility and customization is precious for businesses seeking unique steel structures for their projects.

5. Advanced Technology

Vietnamese steel structure manufacturers utilize advanced technology and machinery to deliver high-quality products. They have embraced modern fabrication techniques, such as Computer Numerical Control (CNC) machining, laser cutting, and robotic welding, which enable them to produce steel structures with precision and accuracy. This commitment to technological innovation ensures that their products meet international standards and are suitable for various applications.

6. Quality Assurance

Quality control is a top priority for Vietnam’s steel structure fabricators and manufacturers. They adhere to stringent quality control processes and follow international standards, such as ISO 9001, to guarantee the quality of their products. This commitment to quality assurance ensures that clients receive reliable, durable steel structures that can withstand the test of time.

7. Competitive Pricing

One of the main reasons businesses choose Vietnam for steel structure manufacturing is the competitive pricing offered by the country’s fabricators and manufacturers. The lower labour and raw materials cost enables Vietnamese steel structure manufacturers to provide high-quality products at a fraction of the price compared to their counterparts in more developed countries.

8. Strong Supply Chain

Vietnam has a robust supply chain that supports the steel fabrication industry. With easy access to raw materials and a vast network of suppliers, Vietnamese steel fabricators can maintain consistent production levels and deliver products on time. The demand for stainless steel in Vietnam has also significantly increased recently. This growth can be attributed to the country’s booming construction, infrastructure, and automotive industries. As a result, Vietnam stainless steel manufacturers have experienced a surge in product demand. Vietnamese stainless steel manufacturers use advanced technology and adhere to international quality standards, making their products suitable for various applications. The competitive pricing offered by these manufacturers has further contributed to the growing popularity of Vietnam stainless steel in the global market. In conclusion, the growth of steel structure fabricators and manufacturers in Vietnam has positioned the country as a leading player in the global metal fabrication market. With a skilled workforce, advanced technology, quality assurance, and competitive pricing, Vietnam offers a compelling option for businesses seeking high-quality steel structures and components.

1. Overall Excellence

From machining to painting to impregnating to balancing (and much more), a high-end CNC machine shop is proud to be a one-stop-shop for a customer’s machining needs. That, however, requires not only CNC machining but also sourcing from vendors that supply materials, services, equipment, and support. A shop is only as strong as its weakest link, as customers judge the performance of an entire project, not just machining. That’s why vendor scorecards are so important. They evaluate on-time deliveries, pricing, and quality, which either accentuate the benefits of a great relationship or shine a light on a poor one. Overall excellence can also been measured by a shop’s longevity, with some shops celebrating 50 years of success in the CNC precision machining world. Also, look for a shop that’s recognized by industry peers, such as Modern Machine Shop’s Top Shops in the U.S.

2. Partnership > Vendor Relationship

While we’ve framed this discussion around strong vendor relationships, the best ones are quite more than that; they become mutually beneficial partnerships. The only way to elevate to that level is to excel in two key factors: communication (timelines, project details, challenges, etc.) and transparency (capacity, budgeting, financial stability, etc.). Yes, these require time to develop, but it’s obvious when two sides are moving in the same, common direction. Many partnerships develop with local vendors. Both the machine shop and the vendor are dedicated to supporting the local economy, plus projects are easier to manage, lead times are shorter, and transportation costs are lower. Yet, of course, partnerships are not entirely dependent on location.

3. Momentum

Openness inspires more openness, and success drives more success. When vendor relationships are strong, they naturally develop momentum and grow. Momentum inspires companies to go above and beyond. When a machine shop vendor receives consistent orders and on-time payments, a rush project is seen as an opportunity to perform and impress a valued partner, not as a headache. Yet, how can you predict if a new relationship has the potential to develop into a true partnership? The vetting process can be lengthy and in-depth, covering many aspects of a business relationship. If the vendor isn’t already ISO- or IATF-certified, the machine shop will perform a full site audit to ensure their quality meets its standards.

Surface Finish Options for Turnet Part

AS9100D and ISO9001:2015 certification (see our certification here) means we maintain quality standards worthy of the medical and aerospace industry requirements. Our modern non-contact inspection systems and software record detailed inspection results and provides Statistical Process Control (SPC) data for our customers. We use automated inspection equipment to measure both internal and external features, but no part leaves without a visual inspection.

Application & Industries

To modify the outside diameter (OD) of a precision machined component, there are two types of cylindrical surface grinding operations that can be used: centerless and centered. Grinding the OD of a CNC Swiss turned component offers several benefits: a smoother surface finish (Ra), a tighter OD tolerance (up to +/.0001”) and elimination of the distortion that can happen during heat treatment. In Centered grinding, the part is held stationary and the grinding wheel moves up and down the part to remove material. To do this, there are using small indentations on the ends of the part (called centers) to aid the grinding machine in holding the part stationary In Centerless grinding, the grinding wheel is stationary. The part moves through the machine and past the grinding wheel, which removes the material from the part. This process is used when the part can not have centers added to the ends of the component.


Industries Served