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The world's leading manufacturer of precision parts for customization. 
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RFQ, Pricing & Production
Quality Control & Inspection
Tolerances & Surface Finish
Materials
CNC Machining Services
1
Does KGL provide laser marking or part number engraving for finished parts?

Yes. KGL is equipped with laser marking equipment and can mark part numbers (PN), QR codes, serial numbers (SN), company logos, or batch numbers at designated locations on finished parts according to engineering drawings. This service supports the identification requirements of custom precision parts and is suitable for single-piece samples, small- and medium-volume orders, and batch production.

For parts that have completed CNC machining and surface treatment, KGL can perform laser marking according to drawing requirements while avoiding functional surfaces or protected coating areas.

The company provides CNC milling, CNC turning, mill-turn machining, drilling, tapping, and grinding services, as well as surface treatments such as anodizing, sandblasting, polishing, electroplating, and painting. These capabilities support custom precision component projects in medical, robotics, aerospace, semiconductor, automation, and other industries.

2
Can local masking or secondary machining be performed after anodizing?

Yes. For areas such as grounding contact surfaces, threaded holes, and high-precision mating surfaces where anodizing or coating needs to be avoided, KGL can use high-temperature-resistant masking tape or customized plugs for localized masking. For areas that require further machining after anodizing, secondary precision CNC machining can also be performed to meet conductivity and assembly requirements.

KGL provides anodizing, polishing, grinding, and coating services for custom precision parts. Its surface-treatment range also includes chromate conversion coating, sandblasting, blackening, wire drawing, electroplating, electrophoretic coating, and painting. These services can be combined with CNC milling, CNC turning, turn-milling machining, drilling, tapping, grinding, multi-axis machining, and wire EDM for custom component production.

3
What machining solutions are available for deep holes, thin walls, or easily deformed structures?

For thin-wall and easily deformed structures, KGL uses multiple stress-relief processes, such as annealing, and uses vacuum suction or dedicated modular fixtures for workholding. During machining, high-speed cutting and small depth-of-cut parameters are used to help control part deformation.

For deep-hole structures, KGL can use internal-coolant deep-hole drilling and EDM equipment to control dimensional accuracy and geometric form. KGL has over 80 high-end CNC machines, including 3-, 4-, and 5-axis machining centers, CNC turning and milling equipment, grinding machines, gantry machining centers, and wire EDM equipment. The company provides milling, turning, turn-milling, multi-axis machining, precision grinding, and wire EDM services.

4
What protective packaging measures does KGL use for easily scratched, delicate, or precision metal/plastic parts?

For scratch-prone, fragile, precision metal, or plastic parts, KGL can provide customized protective packaging, including individual blister trays, anti-static bags, vacuum packaging, custom EPE foam inserts, and high-density foam dividers. These packaging methods are suitable for precision components after CNC machining, as well as medical device components, aerospace components, robot parts, optical sensor components, housings, and enclosures that require international transportation.

Before shipment, KGL checks the packaging method, part quantity, labels, and anti-rust oil application where required. Qualified parts are protected in packaging after final inspection, which includes checks of dimensional tolerances, appearance, and surface treatment. Packaging-related inspection is part of the company’s delivery process.

5
Is KGL willing to sign an NDA?

Yes. KGL places strong importance on protecting customer intellectual property and can sign a standard confidentiality agreement provided by either the customer or KGL before a project begins.

Customers can provide part drawings, 3D models, samples, process requirements, and other project information for custom precision component manufacturing discussions.

KGL provides services ranging from single-piece customization and rapid prototyping to batch production, covering CNC milling, turning, mill-turn machining, multi-axis machining, grinding, wire EDM, and other supporting processes.

An NDA can provide a basis for cooperation on projects involving medical device components, aerospace components, humanoid robot components, optical sensor components, and housing-related parts.

6
Can KGL provide material traceability documents?

Yes. KGL implements strict batch management for incoming raw materials. For projects with specific requirements, KGL can provide Material Test Reports (MTRs), heat or batch number records, and spectrographic analysis reports to support material traceability.

For aerospace projects, KGL can also maintain records of material batches, machining parameters, and operator information. Its quality system includes incoming inspection, 100% first-piece inspection, in-process checks, sampling, and final full inspection.

KGL is certified to ISO 9001:2015, ISO 13485:2016, and BV AS9100D. Related reports, including inspection data, supplier material certificates, and surface-treatment test reports, are organized and archived after shipment for future batch inquiries.

7
How does KGL handle international shipping and customs clearance?

KGL has experience handling international shipments for CNC machined parts and works with DHL, FedEx, UPS, as well as sea and air freight forwarders. Orders can be shipped from single-piece samples to small- and medium-volume production runs. Once the parts have passed final inspection, they are packaged and prepared for delivery.

For orders going to a designated warehouse, DDP shipping is available. This can cover export declaration, import customs clearance, duties, and taxes, with the shipment delivered to the warehouse specified by the customer.

Before dispatch, the packaging, part quantity, labels, and rust-prevention requirements are checked against the order. Depending on the type of part, including precision metal components, plastic parts, and surface-treated parts, packaging may include individual blister trays, anti-static bags, vacuum packaging, custom EPE foam inserts, or high-density foam dividers to help protect the parts during transportation.

8
What payment methods and trade terms does KGL support?

KGL supports payment methods including T/T, PayPal, and Western Union. Customers can select a suitable payment method based on the order value and whether the project involves prototypes or batch production. For CNC machining, CNC milling, CNC turning, mill-turn machining, grinding, and wire EDM projects, payment arrangements can be confirmed during the quotation and cooperation terms stage.

For international trade terms, KGL supports EXW, FOB, CIF, DDP, and DAP. Delivery arrangements for custom precision parts can be made according to customer requirements. Customers can provide part drawings, materials, quantities, machining tolerances, surface treatment requirements, and delivery information when making an inquiry. KGL will then proceed with requirement communication, drawing evaluation, solution and quotation confirmation, sample approval, batch production, full inspection, and delivery.

9
What post-processing services are available for CNC machined parts?

KGL provides post-processing services for CNC machined parts, including grinding, polishing, anodizing, and coating. These services can be integrated into the manufacturing process for custom precision parts and combined with CNC milling, CNC turning, mill-turn machining, multi-axis CNC machining, precision grinding, and wire EDM.

KGL provides custom precision component manufacturing services for the medical, robotics, aerospace, semiconductor, automation, and other industries. Products include aerospace components, medical device components, humanoid robot components, optical sensor components, and housings and enclosures. Customers can select appropriate machining and post-processing services based on their drawing requirements.

For products such as medical devices, aerospace components, humanoid robot components, optical sensors, and housings and enclosures, customers can provide part drawings and surface treatment requirements when making an inquiry. KGL can then arrange the CNC machining and corresponding post-processing services.

10
What industries commonly use CNC machining?
KGL’s custom CNC precision machining services are primarily used in medical, robotics, aerospace, semiconductor, automation, and related industries. The company can manufacture single custom parts, prototypes, small- to medium-volume orders, and batch production based on customer drawings, samples, or material specifications. Products include custom precision components, equipment structural parts, housings and enclosures, fixtures, irregular parts, and complex curved components.
In the medical field,KGL’s applications include high-precision dental equipment components, precision shafts for dental handpieces, orthodontic equipment connectors, dental chair hardware components, and precision components for orthopedic bone supports. In aerospace, the company provides precision components for aircraft water systems. In robotics, applications include high-precision joint components for advanced humanoid robots. KGL also focuses on optical sensor components, medical device components, aerospace components, and housing and enclosure parts.
With capabilities in 2.3-axis, 4-axis, and 5-axis CNC milling, CNC turning, mill-turn machining, drilling, tapping, and grinding, KGL provides machining services for precision component procurement projects across different industries.
11
What materials can KGL machine?

KGL works with a wide range of metals, engineering plastics, and other non-metallic materials. This allows us to handle different types of custom parts, including precision components, equipment structures, housings, flanges, shafts, and parts with complex curved surfaces.

For metal parts, available materials include carbon structural steel, alloy structural steel, free-cutting steel, spring steel, bearing steel, carbon tool steel, alloy tool steel, and high-speed tool steel. Stainless steel options include martensitic, ferritic, precipitation-hardening, and austenitic grades. Iron, aluminum, copper, titanium, and other metals can also be machined according to project requirements.

KGL also processes general-purpose and high-performance engineering plastics, as well as rubber, insulating materials, and ceramics. Machining methods are selected according to the part and material, with turning, milling, grinding, 3-axis, 4-axis, 5-axis, and gantry machining available. Parts can be made from customer drawings, samples, or ODM requirements, whether the project involves a single custom part, a prototype, a small- or medium-volume order, or batch production.

12
What technologies and services does KGL provide?

KGL provides custom precision component machining services covering manufacturing requirements from drawing evaluation and prototype production to batch manufacturing. Core capabilities include 2.3-axis, 4-axis, and 5-axis CNC milling, CNC turning, mill-turn machining, drilling, tapping, and precision grinding. These processes can be used for complex curved surfaces, irregular structures, equipment components, housings and enclosures, fixtures, and prototypes.

In addition to CNC precision machining, KGL also provides rapid prototyping, mechanical part design, sub-assembly, wire EDM, EDM, laser cutting, Swiss-type machining, automatic turning, injection molding, die casting, investment casting, and sheet metal fabrication. Customers can select a single machining process or a multi-process manufacturing solution based on their project requirements.

For secondary processing, KGL provides anodizing, chemical conversion coating, sandblasting, black oxide, brushing, polishing, electroplating, electrophoresis, and painting services, covering the manufacturing and surface treatment needs of precision parts made from metals and engineering plastics.

The world's leading manufacturer of precision parts for customization. 
KGL Machinery & Electronics Co., Ltd 
Providing precision CNC machining services from single-piece customization to mass production, encompassing a multi-process combination of milling, turning, and grinding. 
Contact Us
Contact person: Jason Hu
Tel: +86-0755-23011758   +86-18126505733 

Add: No.30, Changyue Road, Kgl Smart Industrial Park, Shenzhen City Guangdong China. 518108 
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