China Custom
CNC Machining Services
Witcool delivers ISO 9001:2015-certified CNC machining, sheet metal fabrication, and 3D printing services — from rapid prototyping to mass production, with tolerances as tight as ±0.005 mm.
Witcool delivers ISO 9001:2015-certified CNC machining, sheet metal fabrication, and 3D printing services — from rapid prototyping to mass production, with tolerances as tight as ±0.005 mm.
Precision parts for a variety of industries, providing unmatched accuracy and complex geometries.
Versatile milling services for high-quality, custom components in metals and plastics, with reliable precision.
High-precision turned parts for tight tolerances, suitable for complex designs and prototypes.
High-quality sheet metal parts for various industries, from prototypes to large production runs.
Fast, precise prototyping with a variety of materials, ideal for complex and custom designs.
Efficient and scalable injection molding services for durable, high-precision components.
Witcool, a 17-year-old CNC machining factory in China, leverages the country’s robust industrial chain to provide custom machined parts at low cost.
Specializing in a wide range of high-quality metals, plastics, and composite materials, with expert heat treatment and finishing to meet exact engineering specifications.
Benefit from our state-of-the-art knitting machines, capable of producing large quantities quickly and efficiently.
At Witcool, we ensure the highest standards of quality through every stage of production. From material inspection to in-process checks and final product testing, we meticulously validate every part for precision, performance, and compliance with your specifications. Our comprehensive QA process guarantees reliable, defect-free components every time.
We ensure that your custom CNC parts are shipped safely and efficiently, arriving on time, every time.
When you partner with Witcool, you're not just choosing a manufacturer — you're selecting a strategic collaborator committed to delivering precision and excellence in every project.
With over 17 years of experience, we specialize in custom CNC machining, sheet metal fabrication, and 3D printing, ensuring your parts meet the highest standards. Our commitment to quality, fast lead times, and cost-effective solutions makes us the preferred partner for industries like aerospace, automotive, and robotics.
“The precision and quality of the CNC parts we receive from Witcool have been exceptional. Their attention to detail and fast turnaround have been critical to our success.”
Automotive Supplier
“Partnering with Witcool has streamlined our manufacturing process, making our production runs more efficient and cost-effective. We’re always confident in their high standards.”
Aerospace Engineer
“Witcool's custom machining services allowed us to create complex components that fit perfectly into our robotics applications. The team’s expertise and quick response time have been invaluable.”
Robotics Firm Owner
Below you can find some frequently asked questions about purchasing cnc parts. Please feel free to contact us if you have any other questions.
A: Yes! We specialize in high-precision machining, offering tolerance accuracy up to ±0.01mm, along with stringent tolerance requirements for form, position, surface roughness, curvature, and other complex specifications.
A: Absolutely. We accept orders of any size, from single prototypes to 10-unit small batches or thousands for mass production. For small orders, we provide rapid turnaround services to accelerate design validation and project timelines..
A: We machine a wide range of materials: aluminum (6061, 7075), stainless steel (304, 316), titanium alloys, copper, and engineering plastics (POM, ABS, PC). For specialized requests like high-hardness alloys or custom materials, our procurement team offers tailored solutions compliant with international standards (RoHS, REACH).
At Witcool, quality is at the core of everything we do. We follow a stringent multi-step quality control process, from incoming material inspection to in-process checks and final product testing. Our ISO 9001:2015 certification ensures we maintain the highest standards, and all parts are subjected to dimensional checks, surface finish assessments, and functional tests to guarantee they meet your exact specifications.
A: Standard orders ship in 7–10 days, while urgent requests can be expedited to 3–5 days. We optimize production schedules to meet tight deadlines without compromising quality. Contact us for customized delivery plans.
A: Our customer service team ensures seamless communication. Whether via email, phone, or online chat, we respond within 1 hour on weekdays. Engineers provide real-time updates during production and adapt workflows as needed to meet your goals.
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