Mechanical arm moulding

The production requirements of medical robotic arms are very high, and all details need to be paid attention to

1. Design challenges and innovative breakthroughs

Adaptation of complex geometric structures

Bionic joint module: For the multi-degree-of-freedom joints of the robotic arm (such as the 6-axis structure of the wrist), multi-slider linkage + rotary core pulling technology is adopted, the mold has up to 32 movable parts, and the parting surface accuracy must reach ±0.005mm.

Lightweight topology optimization: Based on AI generative design (Autodesk Fusion 360 2025), the support structure is reduced by 40% while ensuring the joint strength (load>500N).

Functional integration requirements

Embedded sensor slot: The mold reserves the fiber channel and pressure sensor installation position (accuracy ±0.1kPa), and the biological signal acquisition module is molded synchronously during injection molding;

Antibacterial coating co-injection: Using two-color injection molding technology, PEEK-Matrix material containing nanosilver (antibacterial rate ≥99.9%) is injected into the skin contact area (such as the gripping end).

2. Material and process system

Special medical plastics: PEEK-Carbon (carbon fiber reinforced, elastic modulus 24GPa), resistant to gamma ray sterilization (100kGy dose)

Microporous breathable structure: supercritical nitrogen foaming (pore size 10-50μm, density reduced by 30%), air permeability increased to 5L/(m²·s)

Surface functional treatment: laser microtexturing (pit depth 0.1-0.3μm, spacing 50μm), friction coefficient reduced to 0.08, reducing tissue damage

3. Key technologies for precision manufacturing

Five-axis linkage machining:

Using DMG MORI Ultrasonic 20 (ultrasonic vibration assisted machining), the cutting speed is increased to 120m/min, achieving 0.001mm surface finish (Ra≤0.02μm).

For 0.2mm thin-walled structures (such as finger joint shells), nano-scale micro-milling (tool diameter 0.03mm, speed 80,000rpm) is used.

Intelligent temperature control system:

The mold is embedded with 3D conformal cooling water channels (printed in titanium alloy, 0.5mm in diameter), with a mold temperature uniformity of ±0.3℃, eliminating shrinkage marks caused by temperature differences (shrinkage rate <0.05%).

Real-time monitoring of melt temperature (infrared thermal imager + thermocouple dual feedback) ensures that the crystallinity of PEEK materials is stable at 35-40%.

4. Cost and efficiency optimization

Modular design

Develop replaceable insert systems (such as wrist/finger/elbow modules), with a switching time of ≤2 hours and a mold reuse rate of 70%;

Use blockchain technology to trace raw material batches (full-link traceability from particles to finished products).

AI-assisted production

Training defect prediction models (based on NVIDIA Omniverse) reduces the number of mold trials from 8 to 3, and shortens the development cycle to 55 days;

Dynamically adjust injection molding parameters (holding pressure ±0.5MPa, cooling time ±0.5s), and the yield rate is increased to 99.2%.

4D printing mold: shape memory alloy mold can adapt to different types of robot arm production (switching response time <30 minutes);

Quantum sensing monitoring: implant quantum dot sensors to monitor mold stress distribution in real time (accuracy up to 0.1MPa level）

Functional verification

Motion accuracy test: simulate 100,000 grasping actions (load 200N) in ISO Class 5 clean room, joint gap change ≤0.005mm;

Biocompatibility: passed ISO 10993-5 cytotoxicity test (cell survival rate ≥90%), heavy metal precipitation (such as nickel, chromium) <0.001μg/cm²

Regulatory certification

Complies with FDA 21 CFR 880.2925 (surgical robot parts) and EU MDR 2025 Class IIb standards;

Mold digital twins must pass ISO/ASTM 52920 certification (additive manufacturing data integrity)

Mechanical arm Mold

We are a Mechanical arm mold manufacturer, providing high-quality Mechanical arm mold manufacturing. As long as you want to customize/develop Mechanical arm products, you can find us. We have professional injection mold design and mature manufacturing technology, providing you with one-stop service, from product design-mold making-product production-product packaging-product transportation, we can help you in every link. As long as you come to us, we will provide you with the ultimate service and satisfy you in terms of product quality, production time, information dialogue, etc.

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Factory

We are Custom Plastic Mold factory. Our factory is plastic injection mold maker. we has 17 years of experience in professional custom plastic mold and 10 years of foreign trade experience. We are custom Plastic Mold supplier. We can provide custom Plastic Mold service. Our factory can make the Injection molded plastic parts, and the quality of the products will satisfy you.

We have more than 50 high-end machines and hundreds of engineers and designers. We can provide one-stop service, from product design - mold making - product production - product packaging - transportation. We have a complete production chain. We can meet all your requirements.

Services we provide:

Professional custom mold service, Plastic mold design and manufacturing .plastic product production, product design, mold design, blow mold customization, rotational mold customization, die-casting mold customization. 3D printing services, CNC manufacturing services, product packaging, customized packaging, shipping services.

We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.

FAQ

Q1: Are you trading company or manufacturer ?

A: We are manufacturers.

Q2. When can I get the quotation?

A: We usually quote within 2 days after we get your inquiry.

If you are very urgent, please call us or tell us in your email so that we can quote for you first.

Q3. How long is the lead-time for mold?

A: It all depends on the products' size and complexity. Normally, the lead time is 25 days.

Q4. I have no 3D drawing, how should I start the new project?

A: You can supply us a molding sample, we will help you finish the 3D drawing design.

Q5. Before shipment, how to make sure the products quality?

A: If you don't come to our factory and also don't have the third party for inspection, we will be as your inspection worker.

We will supply you a video for production process detail include process report, products size structure and surface detail, packing detail and so on.

Q6. What is your payment terms?

A: Mold Payment: 40% deposit by T/T in advance, 30% second mold payment before sending out the first trial samples, 30% mold balance after you agree the final samples.

B:Production Payment: 50% deposit in advance, 50% before sending out the final goods.

Q7: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit for best quality products.

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.