On-Demand Manufacturing for Custom Parts
One-stop solution for fast and reliable custom manufacturing. Comprehensive manufacturing capabilities that cover various processes, materials, and finishes.
Our Services
Choose from a wide range of manufacturing capabilities and support for one-off prototyping, low-volume, or high-volume production. Our custom manufacturing solution is the best choice for making geometrically complex parts.
CNC Machining Services
High precision for complex projects, with 3-, 4-, and 5-axis capabilities for prototyping and low-volume production across materials and industries.
Sheet Metal Fabrication
High-quality parts with precise cuts and bends in metals like aluminum, brass, and stainless steel. Competitive pricing, no minimums.
Vacuum Casting Service
Production-quality rubber parts with no tooling costs, ideal for prototypes and small batches.
Injection Molding Service
Cost-effective, high-quality plastic parts with 100+ materials, no minimum order, and advanced molding options.
3D Printing Services
Rapid, accurate prototypes within 24 hours using SLA and SLS methods in various plastics and rubbers. Ideal for design testing.
Surface Finishing Services
We provide a wide range of different surface finishing options for your custom parts, ensure both functional and cosmetic requirements.
About LC Proto
We are a top custom parts manufacturer specializing in high-quality prototyping, on-demand production, and both low- and high-volume manufacturing. With expertise in a wide range of materials, processes, and industries, we deliver precision parts that meet your exact specifications.
At LC Proto, we prioritize clear communication. Our team works closely with you to fully understand your design specifications, ensuring we deliver exactly what you envision, down to the finest detail.
How to work with LC Proto
Work with us seamlessly: Upload your design, receive a DFM review, confirm your quote, and start production. Get updates at every step for quality, cost-effective results.
Upload Your Design
Submit your CAD design file to our team. We will assess the design for manufacturability and production requirements.
Receive a DFM Review
Our engineering team conducts a DFM analysis to improve manufacturability, quality, and cost-effectiveness.
Confirm Your Quote
Confirm the quote which reflects the design, materials, and production requirements.
Begin Production
Production begins and you will be informed about the progress every step of the way.
Manufacturing Process Dimensional Tolerances
| Manufacturing Process | Standard | Note |
|---|---|---|
| Metal Fabrication Tolerance | GB/T 9124-1988 | JIS B 2202 |
| CNC Tolerance | GB/T 1804-2000 | MK |
| Injection Molding Tolerance | GB/T 14486-2008 | Plastic Molded Part Dimensional Tolerance |
| Turning Tolerance | GB/T 1804-V, GB/T 1804 | — |
The Secret to Consistent Quality
Quality Standards
LC Proto follows strict quality management standards to ensure consistent, reliable results for every project. We are committed to meeting global quality requirements.
Quality Control
We conduct thorough DFM analysis, IPQC, and final inspection reports to ensure each part meets exact specifications and production standards.
Inspection Equipment
Advanced tools like CMMs and laser scanners verify every part's dimensional accuracy and quality before delivery.
Prototyping, Pre-Production, and Manufacturing
From prototypes to production—get fast, flexible prototyping, low-volume manufacturing, and on-demand production for high-quality parts tailored to your needs, every step of the way.
Listen To The True Voice Of LC Proto Customers
Really a great experience. Recommended!
Working with LC Proto has streamlined our manufacturing workflow. Their expertise in CNC machining and sheet metal fabrication enabled us to produce complex parts with tight tolerances, on time and within budget.
Quality much better than expected!
LC Proto has been an exceptional partner for our prototyping needs. Their ability to quickly deliver high-quality CNC-machined parts helped us meet tight project deadlines. The communication was seamless throughout.
You saved my project!
We've relied on LC Proto for both low-volume production and rapid prototyping, and they consistently exceed our expectations. The precision of their parts and the quality of their vacuum casting services are outstanding.
Get A Free Project Review
We are happy to accommodate you in person, on the phone, or over the web. Contact us today, let's discuss your next project!