COMPANY & QUALITY
Laizhou Wontide Machinery Co., Ltd.
莱州沃泰达机械有限公司
Established in 2005, Laizhou Wontide manufactures steel castings to customer drawings in Laizhou, Shandong, China. In-house tooling, shell moulding, heat treatment and CNC machining connect cast blanks with finished components. Sheet metal fabrication and welded assemblies are also available as an independent business.

COMPANY DETAILS
The company behind your component
Use these details when preparing your supplier record or contacting our team. The downloadable company profile provides the same company name, location and primary contact in Chinese and English.
- Company
- Laizhou Wontide Machinery Co., Ltd.
- Chinese name
- 莱州沃泰达机械有限公司
- Established
- 2005
- Manufacturing location
- Laizhou, Shandong, China
- Address
- No. 6838 Yuhai Street, Chengganglu Subdistrict, Laizhou, Yantai, Shandong, China 261400
- Website
- www.wontide.com.cn
- Telephone
- +86 535 2487568
- Mobile / WhatsApp / WeChat
- +86 153 0535 4023
- Contact
- Leo Wu · General Manager
MANUFACTURING AT WONTIDE
Steel casting at the core
Our manufacturing work starts with the customer's drawing and material specification. Tooling, resin-coated sand shell moulding, heat treatment, CNC turning and milling are reviewed as a connected route. Representative work includes axle and suspension components, valve bodies and bonnets, and cast steel pile tips. Laser cutting, press-brake forming and robotic welding support the separate fabrication business.
QUALITY MANAGEMENT SYSTEM
IATF 16949:2016 certificate
The downloadable certificate identifies Laizhou Wontide Machinery Co., Ltd. and its site at No. 6838 Yuhai Street in Laizhou. It records the following manufacturing scope and exclusion:
Manufacture of Iron Casting, Steel Casting and Sheet Metal Welded Parts
Excludes Product Design under Clause 8.3
- Certification body
- United Registrar of Systems (URS)
- Certificate No.
- 122349/A/0001/SM/En
- IATF No.
- 0579435
- Certificate issue date
- 31 July 2025
- Certificate expiry date
- 30 July 2028
- Original certificate issue date
- 04 August 2022
This is quality management system certification. Component requirements, sample approval and project acceptance remain subject to the agreed drawing and technical specification.
Read the IATF 16949 certificate (PDF)INSPECTION & DOCUMENTATION
Agree the checks before production
Material, dimensions and examination requirements are reviewed alongside manufacture. Identify the applicable standard, sampling, acceptance criteria and required records in your enquiry.
| Inspection scope | Arrangement |
|---|---|
| Material chemistry | In-house spectrometric analysis for material verification. |
| Mechanical properties | In-house tensile, impact, hardness and metallographic testing to the agreed scope. |
| Dimensions & geometry | In-house dimensional inspection, including CMM measurement against the drawing. |
| UT & MT examinations | Qualified third-party inspection can be arranged. Procedures, coverage, acceptance criteria, reports, cost and timing are confirmed for the project. |
First-article reports, PPAP and material documents are prepared to agreed requirements. EN 10204 3.1 inspection documentation can be discussed with the applicable material, tests, heat traceability and submission requirements. Specify the documents needed for supplier approval and production release before placing an order.



SUPPLIER REVIEW
Company documents to review
Download the bilingual company profile and the certificate for your supplier review. Send your current drawing revision, material specification and quality-document requirements so we can review the proposed supply scope with you.
START WITH YOUR DRAWING
Let’s review your part.
Send the current drawing revision, material specification, quantities and inspection requirements. We will review the manufacturing scope before confirming price, tooling and production timing.
