Currently, a potential risk exists in the Vietnamese shaft drive market: some companies exploit the reputation of world-renowned brands to attract customers, then sell counterfeit or substandard products. This behavior causes significant damage to industrial drive systems and diminishes the reputation of the original brands.
This is why choosing an authorized distributor of genuine couplings is crucial for businesses to protect their equipment, investment costs, and project reputation.

1. What is an Authorized Distributor of Genuine Couplings?
An Authorized Distributor of Genuine Couplings is an entity certified by a reputable power transmission equipment manufacturer as an “Authorized Distributor” or “Official Distributor,” allowing them to distribute products in a specific market.
Official authorized distributors of power transmission brands have:
– The right to distribute products directly from the manufacturer
– The ability to provide technical consulting services according to manufacturer standards
– Responsibility for genuine warranty and after-sales service
– Provision of CO/CQ certificates from the manufacturer
2. Steps to ensure you purchase genuine couplings
2.1. Only purchase from verified sources on international websites
Top priorities when choosing drive equipment:
– Check the list of official representatives or distributors on the manufacturer’s global website.
– Clearly verify the company name, country, and scope of authorization.
Businesses/buyers should be wary of:
– Websites that only use the manufacturer’s logo but are not listed in the global dealer list.
– Units that cannot prove an official relationship with the manufacturer (Certificate of Authorization).

Image showing Dai Hong Phat as an Authorized Distributor of Ringfeder Germany on Ringfeder.com.
Reference link – Search Vietnam: Dai Hong Phat is present on the Ringfeder Germany website

Image showing Dai Hong Phat as an authorized KTR Germany dealer on the website https://www.ktr.com/no/en/
Reference link: DAI HONG PHAT IS OFFICIALLY PRESENT ON THE KTR.COM WEBSITE
2.2. Checking the physical product and packaging
An Authorized Distributor of Genuine Couplings should always be able to provide the following:
– CO (Certificate of Origin): Certificate of origin, confirming that the transmission product is manufactured in the country declared by the manufacturer.
– CQ (Certificate of Quality): Certificate that the product meets the quality standards and manufacturer’s standards.
– Legitimate VAT invoice: Ensuring transparent transactions and compliance with Vietnamese law.
– Authorization Distributor Letter: Require the supplier to present a valid certificate issued by the international manufacturer, clearly stating the scope and duration of the authorization.

2.3. Request and verify all legal documents for the shipment
– Packaging inspection: Products from a genuine coupling distributor usually have sturdy packaging, clear labels with the brand name, product code, and manufacturer information.
– Verify specifications: The specifications engraved on the coupling body (e.g., Rotex 24) must match the catalog and accompanying documents.
– Anti-counterfeit sticker/QR code (if available): Some manufacturers may use stickers or QR codes for traceability; you can use an application to scan and verify.
View more: Tips for Choosing Genuine Rubber Coupling Gaskets & Reasons to Buy Them
2.4. Use Smart Keywords When Searching for Information
When searching for supplier information, use highly verifiable keywords, for example:
– “authorized coupling distributor”
– “official distributor + brand name + Vietnam”
– “authorized distributor + brand name”
This search method helps businesses:
– Access the correct information from the manufacturer
– Avoid confusion with unauthorized entities
3. Dai Hong Phat – Authorized Distributor of Genuine Couplings in Vietnam
Dai Hong Phat is an Authorized Distributor of Genuine Couplings, certified and authorized to distribute genuine products in Vietnam by international industrial drive equipment manufacturers, as evidenced by valid certificates.
Currently, Dai Hong Phat is an authorized dealer of world-renowned drive brands such as: Ringfeder (Germany), KTR (Germany), PTI (Korea), Cross+Morse (UK), Westcar (Italy), and KBK (Germany).
Learn more: Dai Hong Phat Celebrates 10 Years – Authorized Representative of Ringfeder Germany
Learn more: Rathi Transpower India Officially Merges with Ringfeder Germany

Certificate of Authorized Dealer of Genuine Couplings from Famous Drive Brands
As an Authorized Distributor of Genuine Couplings, Dai Hong Phat commits to:
– 100% genuine products
– Complete legal documents: CO, CQ, VAT invoice
– Advice on correct technical specifications and applications
– Technical support and warranty according to manufacturer standards
– Providing professional consulting, installation, and calibration services
—————–/—————–/—————–/—————–/—————–
With more than 15 years of experience, Dai Hong Phat Transmission Shaft Couplings is proud to be a trusted partner of hundreds of domestic and foreign enterprises.
We don’t just sell products — we help select the right coupling to ensure smooth, stable, and long-lasting system performance.
Let us accompany your sustainable development!
DAI HONG PHAT – COUPLINGS & POWER TRANSMISSION
– HCMC Rep. Office: 22 Street 11, Khang Dien Residential Area, Duong Dinh Hoi Street, Phuoc Long Ward, City. HCM
– Hanoi Office: No. 14-15A, 7th Floor, Charmvit Building, No. 117 Tran Duy Hung, Thanh Xuan Ward, Hanoi City.
– Tel HCM: +84.28.22536631 – 22536632 – 66818587 | | Fax: 028.22536632
– Hotline: +84906.955.057 | – Email: info@dhp-corp.com.vn
– Website: https://en.daihongphat.asia/ – https://khopnoitruc.com/ – https://ringfeder.com.vn/
- Premium Couplings for Industrial Power Transmission – Part 1
- What is a Shaft Coupling? Applications and Types of Shaft Couplings
- Compare Flender N-Eupex A Coupling vs KTR Roflex-SH Coupling
- Applications Of Mini Locking Assemblies Ringfeder RfN
- Ringfeder TNM H Shaft Coupling Meets ATEX Explosion-Proof Standard


















