Intelligent sweeping robot castings

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Core Product: Magnesium Alloy Intelligent Sweeping Robot Castings

Our magnesium alloy intelligent sweeping robot castings strictly follow the core formula of "Product Name + Core Function + Technical Advantage + Application Scenario + Quality Assurance". As critical components for intelligent sweeping robot operation, these castings mainly include driving wheel brackets, dust box housings, main board brackets, rolling brush supports, and sensor mounting bases. Their core functions are to reduce the overall weight of the robot to extend battery life, provide stable structural support for moving and cleaning components, and protect internal electronic components from dust and moisture erosion.

Leveraging 10+ years of magnesium alloy casting experience, our castings fully exploit the material's unique advantages: 35% lighter than aluminum alloy counterparts, which can increase the battery life of sweeping robots by 20%+; excellent wear resistance, adapting to long-term friction of moving components (such as driving wheel brackets); and good machinability, enabling the production of complex and compact structures to fit the internal layout of sweeping robots. These castings are widely applicable to household intelligent sweeping robots, commercial large-area cleaning robots, and special-environment (wet/dusty) sweeping robots, all complying with international standards such as ASTM, ISO, and RoHS, and backed by strict quality assurance.


Production Process of Magnesium Alloy Intelligent Sweeping Robot Castings

To ensure the lightweight performance, precision, and durability of the castings (critical for the stable operation of sweeping robots), we adopt a standardized and visualized production process, with magnesium alloy precision die casting as the core, supplemented by other supporting processes to meet comprehensive production needs:

1. Core Process: Magnesium Alloy Precision Die Casting

  • Raw Material Inspection & Preparation: Select high-purity magnesium alloy ingots (AZ91D, AM60B, AZ31B, etc.) that meet ASTM B94 standards. Use advanced spectral analysis equipment to conduct 100% incoming inspection, detecting chemical composition and impurity content (ensuring impurity content ≤ 0.005%) to avoid affecting mechanical properties and lightweight performance.

  • Magnesium Alloy Melting: Put qualified ingots into a professional resistance melting furnace, heating to 650-700℃ under the protection of SF6+CO2 mixed gas to prevent oxidation and combustion. During melting, rotary degassing technology is used to remove gas bubbles and impurities, ensuring the cleanliness and fluidity of molten metal—critical for forming the complex and thin-walled structure of sweeping robot castings.

  • Mold Design & Preheating: Based on the casting's structural characteristics (compact layout, thin walls, precise mounting holes for electronic components), design high-precision molds using CAD/CAM 3D modeling technology. Preheat the mold to 180-220℃ before casting to avoid cold shut and misrun defects, ensuring uniform filling of the mold cavity and precise formation of small-size mounting holes.

  • Die Casting Molding: Adopt cold-chamber die casting technology, injecting molten magnesium alloy into the mold at a pressure of 120-150MPa and a speed of 4-6m/s. These parameters are optimized to balance lightweight requirements and structural strength, ensuring full filling of thin-walled parts (minimum wall thickness 0.8mm) and no deformation of complex structures. The casting cycle is controlled between 20-35 seconds according to the casting size, balancing production efficiency and product quality.

  • Demolding & Trimming: After the molten metal solidifies (10-15 seconds), the mold is opened automatically. Use CNC trimming machines and high-precision grinding tools to remove gates, runners, and burrs, focusing on the flatness of electronic component mounting surfaces and the smoothness of moving component contact surfaces to avoid affecting assembly and operation.

  • Heat Treatment & Stress Relief: Perform T6 heat treatment (solution treatment at 415℃ for 4 hours, water quenching, artificial aging at 168℃ for 8 hours) to enhance the tensile strength and hardness of the castings. An additional stress relief annealing step is added to eliminate internal stress, avoiding deformation during long-term operation of the sweeping robot.

2. Supporting Production Processes

  • Precision Machining: Use 20+ sets of high-precision CNC machining centers to process key surfaces and holes (sensor mounting holes, driving wheel shaft holes, main board fixing holes) with dimensional tolerance controlled within ±0.02mm, ensuring perfect matching with electronic components and mechanical moving parts.

  • Surface Treatment: Implement customized surface treatment to enhance wear resistance, corrosion resistance, and dustproof performance, including chemical conversion coating (basic anti-corrosion and dustproof), anodizing (improves wear resistance), and wear-resistant powder coating (for high-friction components such as driving wheel brackets), all meeting environmental protection standards.

  • Performance Testing: Conduct comprehensive testing, including dimensional inspection (3D coordinate measuring machine), weight verification (ensuring lightweight requirements), wear resistance testing (simulating 10,000 hours of operation), corrosion resistance testing (salt spray test), and impact resistance testing (to adapt to collision during cleaning), to ensure product qualification.


Product Classification (Industry/Material/Part Type)

Industry Application

Material

Part Type

Core Advantages

Remarks

Household Intelligent Sweeping Robots

Magnesium Alloy (AZ91D, AM60B)

Dust Box Housings, Main Board Brackets, Sensor Mounting Bases

Lightweight, Compact Structure, Good Electromagnetic Shielding

Compatible with mainstream household brands (e.g., iRobot, Ecovacs); Customizable for small-size robot designs

Commercial Large-Area Cleaning Robots

Magnesium Alloy (AZ61A, ZK60A)

Driving Wheel Brackets, Rolling Brush Supports, Battery Case Housings

High Strength, Wear Resistant, Long Service Life

Meet 24/7 continuous operation requirements; Pass 10,000-hour wear resistance test

Special-Environment Sweeping Robots (Wet/Dusty)

Magnesium Alloy (AM50A, AZ31B)

Waterproof Dust Box Housings, Corrosion-Resistant Brackets

High Corrosion Resistance, Dustproof, Waterproof

IP54 waterproof and dustproof rating; Suitable for garages, workshops, and wet areas

Intelligent Mopping Robots

Magnesium Alloy (AZ91D, AM60B)

Water Tank Housings, Mop Head Supports, Driving Mechanism Brackets

Lightweight, Corrosion Resistant, Stable Structure

Resistant to water and detergent erosion; Ensure stable mopping operation


Technical Specifications

Parameter Type

Detailed Specification

Remarks

Machining Precision

Dimensional Tolerance: ±0.02mm; Geometric Tolerance: ISO 8062-CT5; Surface Roughness: Ra ≤ 0.8μm

Full-size inspection with 3D coordinate measuring machines to ensure matching accuracy with electronic/mechanical components

Material Range

Magnesium Alloy: AZ91D, AM60B, AM50A, AZ31B, AZ61A, ZK60A; All materials comply with ASTM B94 standard

Material Test Certificate (MTC) provided per batch; RoHS compliant

Surface Treatment Options

1. Chemical Conversion Coating; 2. Anodizing (Natural, Black); 3. Wear-Resistant Powder Coating; 4. Electroless Nickel Plating

Salt Spray Test: Anodizing ≥ 48h; Powder Coating ≥ 72h; Electroless Nickel Plating ≥ 96h

Minimum/Maximum Size

Minimum Size: 5mm × 3mm × 2mm; Maximum Size: 1200mm × 800mm × 600mm

Thin-walled structure available (minimum wall thickness: 0.8mm); Custom sizes via mold development with technical evaluation

Production Cycle

Sample Order: 5-7 Working Days; Mass Production (1000-10000 Pcs): 15-25 Working Days; Bulk Order (>10000 Pcs): Negotiable

Expedited production available (3-5 working days for samples) with prior confirmation; JIT delivery supported for long-term partners


Common Magnesium Alloy Casting Problems & Solutions (Intelligent Sweeping Robot Castings Specific)

Common Problems

Root Causes

Our Solutions

Incomplete Filling of Thin-Walled Compact Structures

Insufficient molten metal fluidity, low injection speed, unreasonable gate design

Optimize molten metal temperature (680-700℃) and injection speed (5-6m/s); redesign gate and runner to enhance filling continuity; use ceramic filters to improve molten metal fluidity

Dimensional Deviation of Electronic Component Mounting Holes

Mold wear, uneven cooling shrinkage, machining parameter drift

Use wear-resistant H13 mold steel and conduct weekly mold precision inspection; optimize mold cooling channels for uniform shrinkage; calibrate CNC machining parameters daily and verify with 3D inspection

Insufficient Wear Resistance of Moving Component Brackets

Improper material selection, incomplete surface treatment, uneven material structure

Select high-strength magnesium alloy (AZ61A/ZK60A) for moving components; optimize surface treatment (adopt wear-resistant powder coating); improve casting process to ensure uniform material structure

Excessive Weight Affecting Battery Life

Unreasonable structural design, excessive wall thickness, material selection mismatch

Optimize product structure via simulation analysis to reduce redundant wall thickness; select lightweight magnesium alloy (AZ91D/AM60B); control casting density to ensure lightweight requirements


Our Core Competitiveness (10+ Years of Professionalism)

With 10+ years of deep cultivation in the magnesium alloy casting industry, we have formed five core competitive advantages that provide solid guarantees for global B2B cooperation in intelligent sweeping robot castings:

  • Professional Technical Team: A team of 35+ professional engineers with 8+ years of experience in magnesium alloy casting, specializing in the design and process optimization of intelligent sweeping robot components. We have 5 national patents related to precision magnesium alloy casting technology and can provide one-stop technical solutions from 3D modeling, mold development to sample verification according to customer drawings.

  • Strong Production Capacity: Covering a production area of 8,000 square meters, equipped with 30+ sets of advanced equipment (15 cold-chamber die-casting machines, 20 CNC machining centers, 3 3D coordinate measuring machines, 2 vacuum die-casting machines), with an annual production capacity of 5 million magnesium alloy casting parts, supporting large-batch and continuous order needs of sweeping robot manufacturers.

  • Strict Quality Management System: Passed ISO9001:2015 quality system certification and RoHS environmental protection certification. We have established a full-process quality control system: raw material inspection (100% incoming test), in-process inspection (4 key inspection points for sweeping robot castings), and finished product inspection (comprehensive performance and reliability test). The product qualification rate reaches 99.8%.

  • Improved Supply Chain: Long-term strategic cooperation with 10+ well-known magnesium alloy raw material suppliers (including domestic leading enterprises and international brands), ensuring stable supply and consistent quality of raw materials. We have established a supply chain emergency response mechanism to deal with raw material shortages and price fluctuations, ensuring an on-time delivery rate of 99.5%.

  • Comprehensive Global Service Capability: Supporting global shipping (sea, air, express) with long-term cooperation with DHL, FedEx, and Maersk, providing complete customs clearance documents (commercial invoice, packing list, certificate of origin, quality certification) and door-to-door service. We offer a 12-month quality guarantee service; our professional after-sales team responds to customer inquiries and complaints within 24 hours, and provides technical support for assembly and use.


Why Choose Us as Your Magnesium Alloy Intelligent Sweeping Robot Castings Partner?

In the global intelligent sweeping robot industry, where lightweight, precision, and durability are core competitiveness, our professional strength and tailored services make us the preferred partner for many leading manufacturers. Here are the key reasons to choose us:

  • 10+ years of focused expertise: We deeply understand the unique requirements of intelligent sweeping robot castings (lightweight, compact, wear-resistant, electromagnetic shielding) and can avoid common production defects, improving product reliability and market competitiveness.

  • Authoritative certification & strict quality control: Products meet international quality and environmental standards, reducing your quality risks and compliance costs for entering global markets.

  • Customized one-stop service: From technical communication, mold development, sample production to mass production and global delivery, we provide integrated services, saving your communication time and supply chain management costs.

  • Stable supply & flexible delivery: Strong production capacity and improved supply chain ensure on-time delivery even for large-batch orders; we support JIT delivery for long-term partners to help you optimize inventory management.

  • Professional foreign trade & after-sales support: Our team is familiar with international trade rules and customs clearance processes of various countries, providing accurate and complete documents to ensure smooth customs clearance; the 24-hour after-sales team solves your post-purchase worries.

We are committed to becoming a long-term strategic partner for global customers in the field of magnesium alloy intelligent sweeping robot castings. Whether you need standard parts or customized products tailored to your specific sweeping robot models, please contact us today. We will provide you with a detailed quotation and technical solution within 12 hours!

Inquiry

+86 19953268588

+86 19953268588

info@xljmetal.com