The Trusted Partner in Precision CNC Machining & Rapid Prototyping

13 years of proven precision machining experience delivers end-to-end manufacturing support for startups, innovators and global leaders. Complex designs are perfectly realized from first prototype to mass production.

cnc products manufacturing factory
5,600+ Reviews

The Trusted Partner in Precision CNC Machining & Rapid Prototyping

13 years of proven precision machining experience delivers end-to-end manufacturing support for startups, innovators and global leaders. Complex designs are perfectly realized from first prototype to mass production.

cnc products manufacturing factory
5,600+ Reviews
MANUFACTURING AUTHORITY

Precision CNC Partner You Can Trust

Engineered for Precision. Built for Global B2B Scale.

We are a specialized precision CNC machining and rapid manufacturing partner for global innovators across aerospace, robotics, and medical sectors. Combining multi-axis milling power with digital transparency, we eliminate quality risks from prototype to production.

Why Tier-1 Buyers Choose Us

Tight Tolerances: Guaranteed down to ±0.005mm | Material Grade: Aerospace-grade aluminum, steel, titanium, PEEK | Traceability: Mill test reports & CMM inspection sheets included

96%

Client
Satisfaction Rate

Our Manufacturing Capabilities

Tenghui is one of the most reliable rapid prototyping companies. We can turn your designs and ideas into real parts in just a few days.

cnc milling products

CNC Milling

Multi-axis milling for complex structural parts down to ±0.005mm tolerance.

  • Aerospace Brackets
  • Medical Instruments
  • Robot Linkages
  • Custom Jigs
cnc turning products

CNC Turning

High-speed precision turning for axisymmetric shafts and tight-tolerance bores.

  • Drive Shafts
  • Valve Spools
  • Thread Bushings
  • Rotor Spindles
sheet metal poducts

Sheet Metal

Laser cutting, bending, and precision welding for rugged custom steel enclosures.

  • Server Enclosures
  • Mounting Brackets
  • Front Plates
  • Junction Boxes
3d printing products

3D Printing

Rapid SLA and SLS additive manufacturing for functional prototype validation.

  • Snap-Fit Prototypes
  • Wind-Tunnel Models
  • Nylon Brackets
  • Fluid Manifolds

Rapid Prototype

At Tenghui, we don’t just machine parts—we deliver production-grade functional prototypes that meet strict industrial standards. Our advanced in-house capabilities span 3/4/5-axis precision CNC machining, custom sheet metal fabrication, and comprehensive surface finishing.

With our professional engineering team manually verifying every DFM review, we bridge the gap between your engineering designs and flawless, consistent production. We empower you to test form, fit, and performance before scaling up, minimizing R&D risks and accelerating your project timelines with uncompromised quality.

Major Industries Served

CNC Parts Ordering Information

The following information is for preliminary reference only. Final specifications, MOQ, and lead time are subject to product model, material, tolerance, surface treatment, and order quantity confirmation.

Product Range
CNC Machined Parts, CNC Turning Parts, Sheet Metal Fabrication, 3D Printed Functional Prototypes
Common Materials
6061/7075 Aluminum, SUS304/316 Stainless Steel, Carbon Steel, Brass, PEEK/POM Engineering Plastics
Applications
Aerospace, Medical Instruments, Multi-Axis Robotics, Automation Equipment, Electronic Enclosures
Customization
2D/3D Drawings (STEP/IGES/PDF), GD&T Tolerances, Surface Finishes (Anodizing, Plating, Powder Coating)
Sample Support
First Article Inspection (FAI), Material Test Reports (Mill Certs/PMI), CMM Dimensional Audit Reports
MOQ Reference
Rapid prototypes start from 1 pc; low-volume batch production typically MOQ 10–50 pcs depending on geometry complexity
Lead Time Reference
3D Printing/Simple Milling: 3–5 days; Standard CNC Batch: 7–12 days; Complex Custom Parts: 15–20 days
Quotation Requirements
Provide STEP/IGES 3D files, 2D drawings with tolerances/threads, material grade, quantity, and surface finish specs
bending equipment

About Tenghui

Whether for rapid prototyping or medium-volume production, we deliver engineer-verified quotes within 24 hours and flawless custom parts in days.

Operating from our 3,000+ ㎡ modernized smart facility in Chang’an, Dongguan, Tenghui utilizes over 60 advanced multi-axis CNC machining centers and precision sheet metal production lines. We specialize in manufacturing high-precision, complex industrial components and airtight instrument enclosures, reliably securing extreme tolerances down to ±0.005mm. Every single component undergoes rigorous in-house quality tracking and formal CMM dimensional inspection, fully compliant with ISO 9001:2015, RoHS, and REACH international standards. Our advanced processing capabilities proudly serve demanding global sectors, including precision optical instruments, robotics, medical devices, and industrial electronics

Quality control room for CNC machining services featuring a Serein CMM (Coordinate Measuring Machine) and Explorer measuring system for precision component inspection.

Why Choose Our Custom Manufacturing Services

100% Manual Expert DFM Review

Every drawing is analyzed by a 10+ year manufacturing engineer to fix hidden design flaws and cut production costs by 15%-20%.

Flexible Capacity (1 to 10,000+ Pcs)

No restrictive MOQs. We provide fast 3-5 days delivery for R&D test prototypes and seamlessly scale up to volume runs.

±0.005mm Extreme Tolerances

Specializing in high-precision milling and turning for instrument-grade parts to ensure a flawless assembly fit.

One-Stop Surface Treatments

Mature in-house chemical passivation and anodization to deliver robust protection and exquisite industrial aesthetics.

SLS nylon parts

Quality Assurance & Engineering Control for Precision CNC Buyers

Dimensional drift and material non-conformance cause costly assembly line halts and field failures. We support global engineering teams with DFM feedback, CMM dimensional auditing, PMI material verification, and full lot traceability across complex milling, turning, sheet metal, and additive manufacturing.

How to Work With Us

Upload a CAD File

Securely upload your 2D or 3D CAD design files for a quote.

Get a Quote

Our engineers manually review and quote projects within 24h.

Precision Laser Cutting Machine

Manufacturing

We launch multi-axis precision production with rigid tracking.

Global Delivery

Parts are foam-wrapped and shipped with CMM reports.

Portfolio of Our Manufactured Parts

Industrial Experts

Our Team Core

Andy Huang

Andy Huang

CEO of TENGHUI

Ellyn Lee

Ellyn Lee

Sales Manager

Peter Yang

Peter Yang

Quality Manager

Peter Yang

Peter

Quality Manager

FAQ About TENGHUI Proto

Our standard manufacturing tolerance for CNC machining is ±0.005” (±0.127 mm). For high-precision applications, we can achieve tight tolerances down to ±0.001” (±0.025 mm) or tighter upon request. All dimensions are verified using advanced CMM and optical inspection equipment.

We offer rapid prototyping with turnarounds as fast as 3 to 5 business days, depending on part complexity and surface finishing requirements. For low-to-medium volume production runs, standard lead time is typically 2 to 3 weeks. Expedited shipping options are available.

No, we have no MOQ restrictions. Whether you need a single prototype for design validation or low-volume production of 10,000+ units, we support your project at every stage with cost-effective pricing models.

We machine a wide range of metals including Aluminum (6061, 7075), Stainless Steel (304, 316L), Titanium, Brass, and Copper, as well as engineering plastics like PEEK, POM/Delrin, PC, and Nylon. Available surface finishes include anodizing, powder coating, bead blasting, electroplating, and mirror polishing.

 

Yes. Every RFQ undergoes a comprehensive Design for Manufacturability (DFM) review by our engineering team. We analyze your 3D CAD models (STEP/IGES) to identify potential machining bottlenecks, suggest optimization tips, and help reduce unit costs before starting production.

We perform 100% in-process inspection and final CMM quality control. Upon request, we provide full quality documentation with your shipment, including Material Test Reports (MTRs/ROHS/REACH), Full Inspection Reports (CMM/FAIR), and Certificates of Conformance (CoC).

Send us a message

If you have any questions or would like to book a session please contact us.

Send Us a Message

Once we receive your design files, our senior manufacturing engineers will manually perform a comprehensive DFM review and deliver an accurate, optimized quote within 24 hours.