Products Description
Large Part CNC Machining is a specialized process that utilizes high-precision, large-travel CNC machine tools to perform milling, turning, drilling, and other precision manufacturing operations on metal or high-performance engineering plastic components. These parts are typically over 1 meter in size, feature complex structures, and demand stringent specifications. We provide a one-stop solution from design optimization to finished product delivery for large and extra-large precision components.
Product Advantages
product advantages
This is the main reason why our large part CNC machining service is more competitive.
Tight Tolerance Control
Leveraging high-rigidity machine tools and advanced processes, we achieve machining accuracy better than ±0.02 mm, ensuring perfect assembly of large assemblies.
Excellent Surface Finish
Through optimized cutting parameters, tool paths, and post-processing (e.g., fine milling, polishing), surface roughness can reach Ra 0.8 μm or lower.
Superior Consistency
CNC program-controlled production guarantees highly consistent dimensions and performance across production batches, with stable and reliable tolerance control.
Wide Material Compatibility
Capable of machining various aerospace aluminum alloys, high-strength alloy steels, stainless steels, titanium alloys, tool steels, engineering plastics (e.g., PEEK), and composite materials.
Product Applications
industry applications
Aerospace Industry
Airframe structural parts, wing spars, engine mounts, spacecraft frames, large housings.
Energy & Heavy Machinery
Wind turbine gearbox housings, hydroelectric generator components, large pump/valve bodies, critical structural parts for mining machinery.
Car Manufacturing
Large molds (cover panel molds, die-casting molds), new energy vehicle battery trays, chassis testing fixtures, prototype frames.
Scientific Research & Semiconductor
Particle accelerator components, vacuum chambers, large base frames and structures for semiconductor equipment.
Product Specifications
| Product Name | Large part CNC machining |
| Machining Size Range | Customizable |
| Tolerance | Standard ±0.05 mm, high-precision up to ±0.02 mm or better (depending on material and structure) |
| Surface Roughness | Standard Ra 3.2 μm, fine machining up to Ra 0.8 μm, mirror finishing optional. |
| Primary Processes | 5-axis CNC machining, precision mill-turning, deep-hole drilling, boring, etc. |
| Surface treatment | sandblasting, anodizing, coating, etc. |
Company Profile
Best CNC machining factory for large parts
Xi 'an Hi-Precision Machinery Co., Ltd
We are a national high-tech enterprise established in 2007, capable of producing large and ultra-large precision parts. One of our core businesses is providing CNC machining services for large structural components, molds, and key parts for high-end equipment.
We have a professional team composed of senior process engineers, programming experts, and quality inspectors. Our factory is equipped with multiple imported five-axis machining centers and high-precision milling and turning centers with a maximum travel of 20 meters. Our quality inspection center is equipped with coordinate measuring machines (CMMs), laser trackers, 3D laser scanners, and a full set of physical/chemical analysis instruments. The company has passed ISO 9001 quality management system certification.
Partnership Advantages
why choose us
We look forward to working with you.
Flexible Production
Specializes in supporting prototype and small-batch trial production to facilitate customer R&D and market validation.
Rigorous QC Process
Implements full-process quality control from incoming material inspection, in-process inspection, to final inspection, accompanied by complete measurement reports.
Transparent Quotation
Provides clear itemized quotations (material, machining, heat treatment, surface treatment, etc.) with no hidden costs.
Strong Delivery Capability
Equipped with heavy lifting equipment and large climate-controlled workshops, ensuring the machining and handling of oversized workpieces.
Get a quote
Contact us and provide detailed 2D drawings (including complete dimensions, tolerances, technical requirements, and material standards) or 3D models (STEP, IGES, X_T, etc.).
Our address
No.6258 Chanhe east road, Baqiao district, Xi'an, Shaanxi, China 710038
Phone Number
0086 18991129810
jovis@lhcncparts.com
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