Qingdao Zhengrong Precision Machinery Co.,Ltd.

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RAPID PROTOTYPING & LOW-VOLUMEMANUFACTURING SERVICES

Our Manufacturing Capabilities

Having been in the machining industry since 2007,we possess significant expertise,particularly in the production of small, precise, and intricate parts.

Small & Precision & Complex

  • Utilizing various machining methods in conjunction.

  • High precision

Small & Precision & Complex

  • Precision Grinding

  • Swage Dies

Small & Precision & Complex 

  • Lathing and Cylindrical grinding

  • Precision bushing

Small & Precision & Complex

  • CNC and Milling

  • Precision holder

Small & Precision & Complex

  • EDM and CNC

  • Precision Tray

Our Advantage

Flexible Payment Terms

For new clients, we offer a 50:50 payment structure. Established clients benefit from 30-day net invoicing.

Rapid Delivery

Need it fast? Depending on part complexity, we offer lead times as quick as 7 days. We can deliver directly to your door using DDP (Delivered Duty Paid) air freight.

Worry-Free After-Sales Service

We stand by our work with up to a 2-year after-sales quality guarantee. If the product you receive doesn't match the drawings, we'll replace it free of charge.

High-Precision, Complex Part Machining

We thrive on challenges! Our expertise lies in machining complex parts using a variety of processes and multi-step operations. We can consistently achieve tolerances as tight as one micron.

No Minimum Order Quantity (MOQ)

We understand that every project is unique. That's why we happily accept single-piece orders and prototype parts, catering to your specific project needs, big or small.

Comprehensive Documentation Support

We provide all the documentation you need, including detailed quality inspection reports, raw material certificates, and heat treatment reports. We also support third-party inspections for your peace of mind.

Fast Quotations

Our 24-hour online sales and technical teams are ready to assist you. We typically provide quotes within 12 hours, with more complex parts quoted within 48 hours. Additionally, our partnerships with multiple top domestic freight forwarders allow us to offer competitive quotes for air, sea, road, and rail transportation, providing you with optimal shipping solutions.

Unwavering Quality Control

With nearly 20 years of experience, our Quality Control department is ISO 9001 certified. Every step of production undergoes rigorous inspection by our dedicated team, utilizing a range of high-precision measuring instruments. Any non-conforming parts are promptly rejected, guaranteeing superior quality.

Machinery Parts

With hundreds of manufacturers in our network, we have a very broad range of manufacturing capabilities and support both one-off prototyping and low-volume
production. We pride ourselves on being the go-to manufacturer for geometrically complex parts or highly cosmetic parts.

Bushing
Wheel
Pin
Block
Plate
Base
Flange
Bracket
Air Intake

Our Factory

The company has more than 50 employees, including 5 technical personnel. With CNC machining, milling, grinding, EDM, quality inspection and foreign trade and
other perfect departments.

Our Ordering Process

With CNC machining, milling, grinding, EDM, quality inspection and foreign trade and other perfect departments. Since its establishment, the
company has been in strict compliance with ISO9000 quality management standards in production and quality control

  • 1

    Upload CAD File

    Securely upload your part design to our online quote builder

  • 2

    Confirm Specs

    Configure your part specifications and select a lead time that suits your schedule

  • 3

    Receive Instant Quote

    Upload your CAD to our  online quoting platform

  • 4

    Manufacturing

    We select the best manufacturer for your order, and production begins immediately

  • 5

    Quality Control

    We take full responsibility for making sure your parts are manufactured according to our standards

  • 6

    Delivery

Centralized Standards For Consistent Quality

The Protolabs Network Standard is our set of protocols and procedures that ensure the consistent quality of every part we manufacture.

Quality Assurance

Our lSO 9001-certified quality management system ensures reliable quality across our network.

Quality Control

All parts are dimensionally checkedwith calibrated equipment so that they meet your exact specifcations.

Trusted Manufacturers

We work with a thoroughly vettednetwork of manufacturing partnersand continually assess their performance

Specialist Industries

We’ve manufactured millions of parts for all sorts of applications, but we’re especially knowledgeable in these areas.

We are the core enabler in the field of aerospace precision manufacturing.

Precision is the silent vow of safety—we imbue automobiles with a reliable pulse.

Precision at the Microscale, Intelligence for the Future — When Mechanical Soul Infuses Electronic Wisdom

Precision that Safeguards Life — We Provide Medical Devices with an Impeccable “Heart”

Redefining the Boundaries of Semiconductors Through Extreme Manufacturing

Speed requires confidence; safety relies on a solid foundation.

Repeat positioning accuracy up to ±0.02mm, surpassing human limits.

In the world of mechanical machining,every micron carries craftsmanship, and every rotation is a matter of trust.

Mechanical processing has greatly accelerated the manufacturing process of equipment across various industries.