What is the maximum size of a part that can be CNC machined?

Size limitations depend on the specific machine. Large-scale machines can accommodate parts up to several meters, while smaller machines are typically limited to parts around 1000mm in length or less.

How much does CNC machining cost?

CNC machining costs vary based on material choice, part complexity, machine time, labor costs, and quantity (prototypes vs. mass production).

What types of finishes can be applied to CNC machined parts?

Common finishes include Anodizing, Powder coating, Polishing, Painting, Bead blasting, and Electroplating.

Can CNC machining be used for prototyping?

Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It is ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.

What are some common applications of CNC machining?

CNC machining is used across various industries, including Aerospace and aviation, Automotive, Medical devices, Consumer electronics, and Industrial machinery.

What are the common challenges in CNC machining?

Common challenges include Tool wear affecting quality, Material properties requiring process adjustments, and Programming complexity for advanced designs.

How can I ensure the quality of CNC machined parts?

Quality can be ensured through First Article Inspections (FAI), In-process inspections, Final inspections, and the use of quality control tools like CMM (Coordinate Measuring Machine).

Quality Custom Metal Parts with Precision CNC Machining

Name: Quality Custom Metal Parts with Precision CNC Machining
Brand: Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd.
SKU: 2216467655

Guangdong, ChinaShenzhen Donghui Precision Mechanical & Electrical Co., Ltd.

US$2.00

1-99 Pieces

US$1.00

100+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Application

Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory, Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Standard

GB, EN, China GB Code, JIS Code, TEMA, ASME, GB, En, China GB Code, JIS Code, Tema, ASME

Model NO.

DHAA0125001

Machining Method

CNC Machining

Material

Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron

Hardness

Hardened Tooth Surface

Gear Position

External Gear

Manufacturing Method

Cast Gear

Toothed Portion Shape

Spur Gear

Material

Stainless Steel

Type

Circular Gear

After-Sales Service

["Returns and Exchanges","Returns and Exchanges"]

Warranty

1 Year

Surface Treatment

Spray Paint

Production Type

Single Production

Machining Method

CNC Machining

Tolerance Ranges

Metal Machining: Tightest +/0.003mm, Depending on

Surface Roughness Range

Ra: 3.2-0.4, Depending on The Products and Materia

Workpiece Size Range

Milling:1020mm*510mm*500mm Turning:20.5mm-2250mm*5

Raw Material Report

SGS; RoHS; Reach;Coc

Industry Standard

ISO;En;GB;ASTM;ASME

Package Size

400mm*400mm*250mm

Package Gross Weight

10kg

OEM/ODM

Accecpted

Lead Time

7 Day for Sample; 20 Days for Batch

Delivery Term

EXW; Fob; CIF; DDP

Package

Foam; Carton; Wooden Case;

Process

5 Axis CNC Milling

Equipment

Matsuura, Mazak, Dmg, Fanuc, Citizen

Certification

ISO9001; ISO13485; IATF 16949; ISO14001

Transport Package

Carton/Foam/Vacuum

Specification

Customized

Trademark

DONGHUI

Origin

Shenzhen China

HS Code

8479909090

Production Capacity

5000PC Per Month

Key features

Extensive Material Options: Supports Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, and Iron.

High Precision Tolerances: Metal machining tolerances as tight as +/-0.003mm depending on requirements.

OEM and ODM Services: Full customization available from samples, designs, or flexible minor customization.

Advanced 5-Axis Machining: Utilizes state-of-the-art 5-axis CNC milling equipment for complex geometries.

Comprehensive Quality Assurance: Includes incoming material inspection, in-process checks, and First Article Inspection (FAI).

Wide Industry Applications: Serves Medical, Semiconductor, New Energy, Automotive, and Automation sectors.

Global Standard Compliance: Certified under ISO9001, ISO13485, IATF 16949, ISO14001, and various industry codes.

Fast Sample Delivery: Sample lead time is typically 7 days, with batch production taking around 20 days.

Company profile

Management CertificationQuality AssurancePatents AwardedExhibition Experience

Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤1.83h

AI-Powered supplier vetting

SummaryDonghui Precision Machinery is identified as a professional technical supplier manufacturing high-end precision components and intelligent automation equipment for medical, biotech, semiconductor, new-energy, automotive, and automation applications. It reports 3D software design, SDK, ODM, OEM, and broad customization capabilities, supported by CNC, milling, EDM, grinding, measurement, microscopy, and hardness-testing equipment. Quality processes include inspection instructions, traceability, quality assurance, corrective and preventive actions, and complaint-handling procedures. The supplier has participated in a Shenzhen medical-device exhibition and offers multiple payment and quotation terms, but its overseas service infrastructure is limited: it reports no overseas warehouse, showroom, agent, or branch and lists zero countries with overseas services. Export experience is stated as one year. No explicit certification information is provided, and the absence of new products in the past year limits...

Supplier typeThe supplier describes itself as a manufacturer of high-end precision components and intelligent automation equipment, with non-standard customized components serving medical, biotech, automation, semiconductor, automotive, and new-energy applications. This supports classification as a professional technical manufacturing supplier.

After-Sales capabilityThe supplier has documented procedures and records for complaint handling and corrective/preventive actions, indicating an established service-response process. However, it reports no overseas warehouse, showroom, agent, or branch, and zero countries with overseas services, limiting evidence of localized overseas support.

R&D capabilityThe supplier reports professional R&D capability, 3D software design services, SDK availability, ODM services, and OEM experience for well-known brands. However, it also states that no new product was developed in the past year, so current innovation output is mixed.

Production capacityManufacturing scope includes high-end precision components and intelligent automation equipment, supported by CNC, milling, EDM, grinding, dimensional measurement, microscopy, and hardness-testing equipment. Uniform finished-product inspection, quality assurance, and material traceability procedures further support production capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, alongside 3D design, ODM, and OEM services. This provides direct evidence of broad customization capability.

Client casesThe supplier identifies served application industries including medical and biotech, semiconductor, new energy, automotive, and automation, and reports OEM service for well-known brands. It also participated in the Shenzhen International Medical Devices Exhibition in 2023, but no specific customer names, projects, or delivery outcomes are provided.

Product Q&A

Q:What is CNC machining?

CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It is used for a wide range of materials, including metal, plastic, and wood.

Q:What materials can be used in CNC machining?

CNC machines can handle a variety of materials such as Metals (aluminum, steel, titanium, brass, copper), Plastics (ABS, POM, nylon, acrylic), Wood and composite materials, and Ceramics.

Q:What is the difference between CNC milling and CNC turning?

CNC Milling involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece. CNC Turning involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.

Q:How do I choose the right CNC machining service?

Factors to consider include material requirements, tolerance and precision, production volume, lead time, and cost-effectiveness.

Q:What is the typical lead time for CNC machining?

Lead times depend on complexity, material, finish, and volume. Typically, CNC machining takes a few days to a couple of weeks for prototypes. Normally 7 days for prototyping and 20 days for mass production shipment.