0:25Shell mould production
Workshop footage of shell mould production with resin-coated sand at Laizhou Wontide.
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Founded in 2005 in Laizhou, Shandong, China, Laizhou Wontide Machinery Co., Ltd. manufactures steel castings to customer drawings, with in-house heat treatment and CNC machining. We also supply sheet metal parts and welded assemblies through a separate business.

WONTIDE
Steel casting is our core. We also accept stand-alone sheet metal and welded assembly orders.

Custom steel castings manufactured to customer drawings, with in-house heat treatment, CNC machining and project-specific inspection.
Explore cast steel components
Drawing-based sheet metal fabrication and welded assemblies in China, including laser cutting, press-brake forming and robotic welding.
Explore sheet metal & weldments
01 / ABOUT WONTIDE
Established in 2005 in Laizhou, China, Wontide manufactures industrial components with steel casting at the core. In-house heat treatment and machining connect the manufacturing route; sheet metal fabrication and welding are also available as an independent business.
We work from customer drawings, review manufacturing requirements and connect the processes needed for the part. Experience includes axle and suspension components, commercial vehicle brackets, steel valve components and cast steel pile tips.
Official website and company identity
Download company profile02 / MANUFACTURING
Bring the material, casting, heat treatment and finishing requirements together at the technical review. Then agree the manufacturing route for your component.

Shell mould casting for steel components. Material specifications, casting geometry and inspection requirements are reviewed before tooling.

Normalizing, quenching and tempering to the agreed material condition. Treatment requirements and mechanical properties follow the approved technical specification.

CNC machining of cast blanks and drawing-defined components. Datums, fits, critical dimensions and inspection requirements are established during the technical review.

INSIDE OUR LAIZHOU FACTORY
Real workshop footage of selected manufacturing operations. Open a video for scene descriptions and drawing-based purchasing information.
0:25Workshop footage of shell mould production with resin-coated sand at Laizhou Wontide.
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0:24Actual footage of a stacked load of components leaving the normalizing furnace at Laizhou Wontide.
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0:30Workshop footage of component machining on CNC equipment at Laizhou Wontide.
Watch videoThese are representative operations, not a mandatory sequence for every part. The drawing, material specification and agreed delivery condition determine the manufacturing route. No clip identifies a particular customer order.
03 / QUALITY
Material verification, dimensional inspection and agreed documentation connect the technical requirements to the delivered component.
Certificate scope covers the manufacture of iron and steel castings and sheet metal weldments. Manufacturing is based on customer-approved drawings.
Certificate No. 122349/A/0001/SM/En
IATF No. 0579435
Spectrometric analysis for material verification.
Tensile, impact, hardness and metallographic testing.
CMM and dimensional inspection against the drawing.
Qualified third-party UT and MT inspection can be arranged to agreed procedures and acceptance criteria.
PPAP support and project-specific inspection documentation can be agreed during the technical review.
Discuss your quality requirements


04 / PRODUCTS & PROCESSES
Start with our cast steel blanks and machined cast steel components, or explore the separate sheet metal and welding range. Each project is reviewed against its drawing, material and quality requirements.
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Photographs edited for surface and background cleanup and lighting. Products follow approved drawings.
PRODUCT & SOURCING GUIDES
Explore drawing-based steel casting families, then prepare the information needed for a manufacturing review.
Review the manufacturing route, quality controls and delivery condition.
02 / SOURCINGPrepare a steel casting enquiryDrawings, material, quantities and the inspection details needed for a quotation.
03 / SUPPLIER REVIEWMeet Laizhou WontideCompany identity, IATF certificate details, inspection scope and supplier documents.
MADE TO YOUR DRAWING
Representative work includes axle and suspension components, commercial vehicle brackets, industrial valve castings and cast steel pile tips. We review new steel casting enquiries against the customer drawing, material specification, delivery condition and inspection requirements.
PRODUCT APPLICATIONS
Leaf spring seats, torque rod brackets, equalizer arms and beams, brake backing plates and hanger assemblies.
Engine air-conditioning brackets, spring brackets and related structural components.
Steel valve bodies and bonnets, with experience supplying components for the Canadian market.
Cast steel helical pile tips, with experience supplying components for the Japanese market.
05 / WORKING TOGETHER
Drawing revision, material, annual volume and inspection requirements.
Casting, tooling, machining, heat treatment and any external finishing.
Agree sample requirements, inspection evidence and approval criteria.
Confirm the order, packing, schedule and project-specific delivery terms.
Yes. Steel castings, machined components, sheet metal parts and welded assemblies are evaluated against the customer’s drawings and technical requirements.
Casting, heat treatment, machining, sheet metal fabrication and welding are in-house. Galvanizing and electrophoretic coating are arranged through external suppliers when required.
We can support PPAP and inspection documentation. The submission level, tests, sampling and acceptance requirements should be agreed for the specific project.
Please include the current drawing revision, material specification, estimated quantities, critical quality requirements and required surface treatment. Add relevant 3D files or sample information if available.
Yes. Ductile iron enquiries are reviewed separately against the drawing, material specification, quantity and inspection requirements. Acceptance is confirmed for each project.
Download our company profile and quality-system certificate for your supplier review.
06 / CONTACT
Get to know our manufacturing capabilities, request company information or start a technical discussion with our team.
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Leo Wu · General Manager