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Case Studies

If you are looking for a reliable rapid prototyping and volume production manufacturer from China, we are here for you!
Our professional sales executives and project managers at Marigold work with a wide range of product developers, product designers and engineers from all over the world to help them make their designs to good-quality prototypes and products.

Have a look at some examples of projects we’ve worked on and see how they were made. Projects using a wide range of services including CNC machining, sheet metal fabrication, injection molding, compression molding, pressure die casting and various of post finishing techniques.

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TiN Coated Orthopedic Bone Screw Driver

Precision CNC-machined from medical-grade stainless steel (17-4 PH), this orthopedic bone screw driver features a titanium nitride (TiN) coating for exceptional hardness and corrosion resistance in spinal fusion, trauma fixation, or joint replacement surgeries. Engineered to ±0.003mm tolerances, its hexalobular (Torx®) tip ensures secure engagement with bone screws, minimizing slippage and tissue damage. The TiN coating reduces friction, extends tool life, and withstands repeated sterilization (autoclavable up to 135°C). Compliant with ISO 13485 standards, it delivers precise torque transmission and ergonomic handling for surgeons performing delicate bone screw insertions. Lightweight yet durable, this high-tolerance instrument meets the rigorous demands of orthopedic procedures requiring accuracy and reliability.

Category：

CNC Machining

Process involved： CNC Machining
Material： Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron, Titanium, Alloy
Part Size： Customized
Surface Finish： Brushing, Galvanized, Laser Enraving, Silk Printing, Customized
Surface Color： Customized
Quantity： No MOQ
Lead Time： 2-7 Days for Sample, About 15-30 Days for Mass Order

Product Description

Basic Info

Production Type	Prototyping and Mass Production.	Surface Treatment	Anodizing, Sandblasting, Polishing, Painting, Customized
Material	Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron, Titanium, Alloy	Function	High Precision Robotic Motion Compatibility, Robust Structural Forming for Dynamic Loads, Modular Integration for Scalable Robot Systems, Industrial - Grade Durability in Harsh Conditions
Certificate	ISO9001, ISO13485, SGS, UKAS, IAF, CNAS	Machining Method	CNC Machining
Surface Finishing	Brushing, Galvanized, Laser Enraving, Silk Printing, Customized	Inspection	Full Size Checked
Tolerance	+/-0.01mm	Processing	CNC Turning, CNC Milling, CNC Machining, Grinding
Color	Accoring to The Customer's Requests	Applications	Industrial Robots, Collaborative Robots (Cobots) , Service Robots, Robot Arms for Automation, AGVs (Automated Guided Vehicles), Robot Components for R&D
Sample Service	Avaiable	Size	Accoring to Customers' Drawings
Other Service	Assembly, Die Casting Service	Service	One Stop Service
Lead Time	2-7 Days for Sample, About 15-30 Days for Mass Order	Transport Package	Safety Export Package
Specification	Customzied	Trademark	OEM/ODM
Origin	China	Shipment	DHL or as Your Request
Production Capacity	1,000,000 Pieces/Year

FAQ

1. Are you a manufacturer or trading company?
We are a one-stop custom mechanical parts manufacturing factory specializing in CNC machining, sheet metal fabrication, injection molding, and comprehensive post-processing services (e.g., surface treatment, assembly). Our facility is equipped with CNC milling/lathe machines, sheet metal presses, injection molding machines, an ERP system, and over 50 sets of advanced production equipment. For any project, we can provide material certification reports, sample QC reports (for CNC/metal/plastic parts), and other technical documentation as required.

2. How to get a quotation?
To request a quotation for custom mechanical components (CNC-machined, sheet metal, or injection-molded), please provide detailed specifications including:
Drawings (PDF/STEP/IGS/DWG, etc.) or 3D models
Process type (CNC machining, sheet metal fabrication, injection molding)
Material grade, surface treatment requirements, quantity, quality standards, and delivery timeline

3. Can I get a quote without drawings?
Can your team assist with design development for my concept (e.g., CNC parts, sheet metal components, plastic moldings)? Absolutely! For custom manufacturing projects, we accept samples, sketches, or detailed dimensional notes. Our engineers can provide process-specific design support (e.g., CNC machining feasibility analysis, sheet metal nesting, injection mold design) to convert your ideas into accurate quotes.

4. Can you provide samples before mass production?
Yes, we offer prototyping services for CNC-machined parts, sheet metal prototypes, and injection-molded samples (sample fee applicable). The prototype fee may be refunded upon confirmation of volume production orders (applicable to all processes).

5. When is the delivery date?
Typical lead times vary by process:
Prototypes: 2-7 days (CNC/sheet metal) | 5-10 days (injection molding)
Batch production: 10-30 days (CNC/sheet metal) | 20-40 days (injection molding)
(Exact timing depends on part complexity, process, material, and order quantity)

6. How do you control the quality?
Our multi-process quality control system covers all manufacturing services (CNC, sheet metal, injection molding):
(1) Material inspection – Verify raw material specifications (metal/plastic) and dimensions
(2) First article inspection (FAI) – Validate critical features before mass production for any process
(3) In-process QC checks – Regular sampling during machining/fabrication/molding
(4) Pre-shipment inspection – 100% final check for all components (regardless of process)

7. After-sales Service Team
If you encounter any issues with our custom mechanical parts (CNC, sheet metal, or plastic components) within one month of receipt, contact our after-sales team via phone, video call, or email. We guarantee a solution within 7 working days, supported by process-specific technical expertise.

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