Large Part CNC Machining Service
Large part CNC machining lets you make big, heavy parts with tight accuracy. You can shape, drill, and finish oversized components for strong, reliable performance.
At DEK, you get full support for large part CNC machining, from heavy milling and deep drilling to complex surface finishing. Our team works with strong materials and advanced machines to keep your parts accurate, durable, and ready for real-world use across aerospace, energy, construction, and industrial applications.
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INTRODUCTION
Large Part CNC Machining | Advanced, Accurate, End-to-End
XHYE provides full-scale CNC machining for oversized parts, combining advanced machines, skilled operators, and precision workflows to meet strict tolerances across aerospace, energy, construction, and industrial sectors.
At DEK, we work with a wide range of materials for large part CNC machining, including aluminum, steel, stainless steel, titanium, and engineering plastics. Our full-service capabilities include heavy milling, deep drilling, multi-axis turning, and precise surface finishing. We handle everything from prototypes to small runs and full-scale production, ensuring each component meets strict specifications and performs reliably in demanding applications. Beyond machining, DEK provides complementary support services to optimize your parts. This includes design review, material guidance, and finishing processes that enhance strength, durability, and functionality.
By combining advanced equipment, skilled operators, and end-to-end services, we deliver ready-to-use, high-quality components for aerospace, energy, construction, and industrial projects, all from a single, streamlined workflow.
- 24/7 Engineering Support
- Lead Times as Fast as 3 Days
- Single-Setup Precision & Smooth Surface Finishes
- Complex Surface & Large Parts Machining
- Full CMM Inspection Reports
- ISO 9001:2015 | ISO 13485:2016 | AS9100D
5 Axis CNC Machining Materials
We offer a wide range of metal and plastic materials for 5 axis CNC machining. If you don’t see the material you require, please contact us or view our full materials list.
Aluminum
Aluminum is a lightweight, ductile metal that is favored in 3 Axis CNC machining for its good strength-to-weight ratio, easy to machine, excellent thermal conductivity and corrosion resistance.
At DEK, we specialize in machining all types of aluminum, including 6061 and 7075, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for engine cylinder heads, lightweight aerospace parts, heat sinks and more.
Alloy
AL6061, AL6063, AL5083, AL5052, etc.
Alloy Steel
Alloy steel is a material that changes the properties of steel by adding alloying elements such as chromium, nickel and molybdenum. They have high fatigue strength, wear resistance, excellent machinability and impact resistance.
At XHYE, we specialize in machining all types of alloy steels, including 4130,4140 and 4340.Our high precision service ensures high quality parts for industries such as construction and automotive, ideal for steel brackets, wheel bearings, automotive engine parts and more.
Alloy
Alloy Steel 1215, 4130, 4140, 4340, 8620, A514, etc.
Dimension & Tolerance
| Standards | Metric Units |
|---|---|
| Macimum Part | 850 x 800 x 500 mm |
| Minimum Part | 4 x 4 x 4 mm |
| Minimum Feature Size | Φ 0.50 mm |
| Standard Tolerances | Metals: ISO 2768-f; Plastics: ISO 2768-m |
| Linear Dimension | +/- 0.02 mm |
| Hole Diameters (not reamed) | +/- 0.02 mm |
| Shaft Diameters | +/- 0.01 mm |
| Edge Condition | Note project requirement on drawings |
| Threads and Tapped Holes | 1.Standard size: Diameter: standard drill bit sizes; depth: 4×diameter 2.Maximum size: Diameter: Φ 1 mm; depth: 10×diameter 3.DEK can produce threads of any specification and size required by ourcustomers. |
| Text | 1. For plastic and soft materials: minimum width of 0.457 mm, depth of 0.3mm 2. For hard material: minimum width of 0.838 mm, depth of 0.3 mm 3. DEK can use CNC engraving or laser carving to create standard text based on customers’ requirements. |
| Lead Time | 8 business days for less than 50 parts |
Instant & Accurate Quotes
We don’t use online automated quotation tools, because it is very inaccurate. Online quote platforms rely solely on calculations based on cutting amounts and fixed coefficients, they fail to account for actual processing nuances, such as material deformation after heat treatment, tight tolerance requirements, grinding after heat treatment, etc. Consequently, automated price calculations can lead to inaccuracies, ultimately increasing your costs.
But you can rest assured at XHYE!
Our quotations are both cost-effective and accurate because we have a team of professional mechanical engineers who meticulously review each drawing. These engineers boast over 10 years of experience and possess deep expertise in programming, machine operation, post-processing, material properties, and more. Ensure you will get accurate quotes within 6 hours.
Production Capacity Guarantee
Advanced CNC Machine Shop
has a range of advanced equipment, including 3-axis, 5-axis CNC milling machines, high-speed turning centers and drilling machines, precision grinders, EDM machines, laser cutting machines, etc. These machines are controlled by the most advanced computer numerical control systems and are capable of high-precision and complex shape processing, ensuring that each part meets strict tolerances and surface finish. With these advanced equipment, we are able to efficiently produce high-quality parts that meet customer needs.
Quality Control
has a range of advanced equipment, including 3-axis, 5-axis CNC milling machines, high-speed turning centers and drilling machines, precision grinders, EDM machines, laser cutting machines, etc. These machines are controlled by the most advanced computer numerical control systems and are capable of high-precision and complex shape processing, ensuring that each part meets strict tolerances and surface finish. With these advanced equipment, we are able to efficiently produce high-quality parts that meet customer needs.
Professional Packaging
has a range of advanced equipment, including 3-axis, 5-axis CNC milling machines, high-speed turning centers and drilling machines, precision grinders, EDM machines, laser cutting machines, etc. These machines are controlled by the most advanced computer numerical control systems and are capable of high-precision and complex shape processing, ensuring that each part meets strict tolerances and surface finish. With these advanced equipment, we are able to efficiently produce high-quality parts that meet customer needs.
Global Shipping
has a range of advanced equipment, including 3-axis, 5-axis CNC milling machines, high-speed turning centers and drilling machines, precision grinders, EDM machines, laser cutting machines, etc. These machines are controlled by the most advanced computer numerical control systems and are capable of high-precision and complex shape processing, ensuring that each part meets strict tolerances and surface finish. With these advanced equipment, we are able to efficiently produce high-quality parts that meet customer needs.