Hire DFA (Design for Assembly) Designers in China

Senior Mechanical Design Expert | 24 Years HVAC / Heat Pump / Industrial Heat Pump Experience Turn your HVAC or heat pump product from concept to mass production — efficiently, reliably, and certific... Read more

Senior Mechanical Design Expert | 24 Years HVAC / Heat Pump / Industrial Heat Pump Experience Turn your HVAC or heat pump product from concept to mass production — efficiently, reliably, and certification-ready. I have over 24 years of experience in mechanical structure design and product development in HVAC, heat pumps, and smart appliances. I have successfully led 200+ products from concept to mass production. My products are widely exported to Europe and North America, fully compliant with CE, UL, Keymark, TÜV, DVGW, UBA, KTW and other international standards, with strong experience in certification-oriented design. My Background Top-Tier Industry Experience: Worked at leading companies with mature product development systems: - Midea Group (Fortune Global 500) - A leading listed heat pump company - Chigo Air Conditioning (00449.HK) International Client Experience: Extensive experience working with global clients, providing customized product development: Carrier / Iceair / Thermondo / Kaisai / Olimpia / Notus / SKD Patents: - 1 National Priority Invention Patent - 12 Invention Patents - 100+ Utility Model Patents Core Expertise 1. HVAC / Heat Pump Structural Design - Full unit structure design (indoor / outdoor / integrated units) - Refrigeration system integration (compressor, heat exchangers, piping layout) - Noise reduction optimization (airflow vs noise balance) - Waterproofing, anti-vibration, piping stress & reliability design - Electrical enclosure safety & system integration 2. Industrial Heat Pump & HVAC Design - Industrial-grade heat pump system design - Industrial HVAC equipment (high reliability / long lifespan / harsh environments) - Custom non-standard equipment structure design 3. Manufacturing-Oriented Engineering (DFM / DFA) - Design for Manufacturing (DFM) - Design for Assembly (DFA) - Cost optimization - Mold feasibility analysis (plastic / sheet metal) Service Scope Heat Pump Products: Residential heat pumps (Monoblock / Split), modular systems, integrated water systems / hydraulic modules Air Conditioning & Light Commercial HVAC: Indoor / outdoor unit structure design, PTAC / window AC / portable AC, heat exchanger design (evaporator / condenser), electrical cabinet design Industrial & Custom Equipment: Industrial air conditioning, custom equipment structure design Additional Design Services: Sheet metal design, plastic part design, HVAC piping optimization, product upgrade & partial redesign Mold & Manufacturing Support: Mold design review (DFM), injection molding / sheet metal process optimization, supplier sourcing & factory coordination Cross-Functional Collaboration: Work with thermal engineers (refrigeration system optimization), work with electrical engineers (control system integration), support full system-level product development China-Based Engineering Support: Reliable supplier sourcing, on-site or remote production support, fast issue resolution during prototyping and mass production What I Need From You (Before Starting) To ensure an efficient project process, please provide as much as possible: 1. Basic Product Information: - System diagram / schematic - Sketch / concept / idea - Reference images or benchmark products 2. Certification & Market Requirements: - Target certifications (CE / UL / Keymark / TÜV, etc.) - Target market (Europe / North America, etc.) 3. Production Information: - Target production volume (prototype / small batch / mass production) - Whether you already have a factory or supply chain 4. Design & Manufacturing Preferences: - Material preference (plastic / sheet metal / hybrid) - Special requirements (cost target / appearance / size constraints, etc.) Even if you only have a rough idea or simple sketch, feel free to contact me. I can help you refine the concept and bring your product to life. My Commitment ✔ On-time delivery ✔ Design compliant with international standards (CE / UL, etc.) ✔ Production-ready, manufacturable design ✔ Free initial technical consultation ✔ Reliable and efficient communication

I design real products that get manufactured - not just 3D models. Manufacturing-ready CAD, prototyping, and Design for Manufacturing (DFM)-driven product development for industrial and consumer produ... Read more

I design real products that get manufactured - not just 3D models. Manufacturing-ready CAD, prototyping, and Design for Manufacturing (DFM)-driven product development for industrial and consumer products. I’m a Product & Industrial Designer with a strong engineering background, specializing in manufacturable product design, mechanical systems, and production-ready CAD. My core focus is not just creating geometry, but developing real products that can be prototyped, tested, manufactured, assembled, and scaled. I have over 10 years of hands-on experience in automotive and industrial product development, particularly within the automotive aftermarket, where design decisions directly impact tooling cost, durability, logistics, and user safety. 📐 What I Do Best I support products from early concept through production validation, with a strong emphasis on: 🔖 Design for Manufacturing (DFM) 🔖 Design for Assembly (DFA) 🔖 Prototyping strategies (FDM, SLA, MJF, CNC) 🔖 Injection molding, sheet metal, and machined parts 🔖 Tolerance management, interfaces, and real-world constraints 📐 End-to-End Product Development Experience I’ve initiated and completed 100+ projects, including: - New product development - Product and process optimization - Cost reduction through redesign - Capacity and efficiency improvements - Innovative R&D projects - Patent-oriented design and prior-art interpretation I’m comfortable evaluating designs from a patentability and IP-risk perspective and aligning concepts accordingly. 📐 Services - Product development from concept or existing reference - Mechanical and industrial 3D CAD (Siemens NX) - Manufacturing drawings (GD&T, BOM, weld symbols) - Design for CNC, sheet metal, injection molding–ready design - Reverse engineering & 3D scan to CAD - Prototyping strategies and iteration planning - Mold-aware part design (plastic & tooling logic) - Technical support during supplier/manufacturer discussions ⏲ Engagement Model I work hourly for: - Iterative product development - Prototyping-heavy projects - Ongoing engineering support I prefer fixed-price for: - Clearly defined parts or assemblies - Manufacturing drawings & production packages - Design reviews and feasibility studies In all cases, scope is defined upfront to avoid surprises on both sides. 📌 Primary CAD Tool: Siemens NX, AutoCAD and Geomagic Design X I work primarily in Siemens NX, which is widely used in high-end automotive and industrial manufacturing. I can deliver clean, fully editable STEP / STL / Parasolid files, and I regularly convert and work with SolidWorks, Fusion 360, Rhino, SketchUp, and scan-based data. If you use SolidWorks or another CAD system, this is not a limitation — deliverables are always production-ready and compatible. ✒️ Supporting: - Adobe Photoshop / Illustrator / InDesign - Excel (costing, BOMs, comparisons) 📌 If you’re looking for someone who can own the technical side of your product, speak the language of manufacturers, and reduce risk before production—this is where I add the most value. 📐 Automotive Aftermarket Products Development Experience I’ve led and executed the design and development of many production-ready products, including: ✒️ Roof Rack Carrier Bars: Designed 12+ variants, 200+ mounting brackets & kits optimized for different roof types, load cases, and regulations. ✒️ Modular & Extendable Roof Basket: A configurable, scalable system designed for modular manufacturing and logistics efficiency. ✒️ Vehicle Roof-Mounted Bicycle Carrier: A dual-orientation design supporting different wheel diameters with integrated safety locking. ✒️ Roof Rails for Commercial Vehicles: A design that allows for the mounting of various equipment on the roof of commercial vehicles while also giving the vehicle a stylish and aesthetic appearance. ✒️ Vehicle Roof-Mounted Canoe Carrier: A compact, user-friendly system optimized for ease of use and space efficiency. ✒️ Running Boards & Side Steps: Adaptable designs with interchangeable visible components for multiple vehicle platforms. ✒️ Vehicle Roof Platform: A modular and scalable design featuring T-slot mounting channels for different components, allowing for the adaptation of tents or other equipment. ✒️ Hitch Bike Rack: Tiltable, foldable, transport-optimized, configurable for mounting 2 or 3 bikes, competitive in the global market and focused on price-performance. These products were developed with tooling, assembly, durability, and cost in mind—not just form.

I am a CATIA V5 and SOLIDWORKS mechanical engineer with 6 years of professional engineering experience and 7 years of unrelated project experience. I have proved myself capable of captaining a project... Read more

I am a CATIA V5 and SOLIDWORKS mechanical engineer with 6 years of professional engineering experience and 7 years of unrelated project experience. I have proved myself capable of captaining a project from concept to supply chain design and procurement strategy, and would love to do the same for you.