Precision CNC Machining & Sheet Metal Fabrication from China
Experience top-quality China sheet metal fabrication and CNC machining in China at unbeatable prices with Yijin Solutions’ seamless, one-stop online services.
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Top 10 Manufacturer
Aluminum Machining in China
ISO 9001 & 14001
Certified Quality Systems
Entrega rápida
Urgent Sample Delivery
Global Offices
USA, China, Hongkong
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Two Services. One Reliable Partner.
Comprehensive precision manufacturing capabilities under one roof
Servicios de mecanizado CNC
- Mecanizado CNC de 3, 4 y 5 ejes
- Fresado y torneado CNC
- Rapid Prototyping Services
- Producción a gran escala
- Complex Geometries & Tight Tolerances
Precision Specs
±0.01mm Tolerance
Ra 0.8µm Finish
50+ Materials
5-7 Days Standard
Fabricación de chapas metálicas
- Laser Cutting and Plasma Cutting
- Precision Bending & Forming
- Soldadura y montaje
- Prototyping to Production
- Fabricación a la carta
Especificaciones
3-7 Days Lead Time
2440×1220 mm Max. Part Size
±0.10 mm Precision Tolerance
±0.30 mm Standard Tolerance
Manufacturing Excellence at Yijin Solution
State-of-the-art facilities designed to support precision engineering and scalable production.
Material Capabilities at a Glance
Every project starts with the right material. Explore the metals and plastics we offer, including supported grades, surface finishes, and achievable tolerances — everything you need to evaluate fit before submitting an inquiry.
CNC Metal
Aluminio
Custom aluminum parts machined from 6061, 7075, 2024, and 5052, with finishing options like Type II/III anodizing, powder coating, and bead blasting. Holds tolerances as tight as ±0.01 mm, suitable for both prototypes and production runs.
Latón
Machined brass components in C360 free-cutting and C260 cartridge alloys. Choose from polishing, brushing, plating, or bead blasting. Capable of ±0.005 in tolerances, with quick turnaround from one-offs to volume orders.
Cobre
On-demand copper parts in C101 (oxygen-free) and C110 (ETP) for high-conductivity applications. Available finishes include polishing, silver/gold plating, and bead blasting, with precision down to ±0.01 mm.
Iconel
High-temperature Inconel parts in 718 and 625, ideal for aerospace and harsh environments. Finishing includes passivation, polishing, and bead blasting, with critical features held to ±0.025 mm or tighter.
Magnesio
Lightweight magnesium components in AZ31B, AZ61B, and AZ91D, machined under specialized safety protocols. Protective finishes such as chromate conversion, anodizing, and powder coating are available. Tolerances to ±0.005 mm.
Acero
Steel parts machined in grades from 1018 and 1045 to 4140 alloy steel. Finishing options include black oxide, zinc plating, powder coating, and bead blasting, with all parts held to ISO 2768-f / ±0.01 mm standards.
Acero inoxidable
Corrosion-resistant stainless parts in 303, 304, 316, and 17-4 PH. A wide range of finishes is supported — polishing, brushing, passivation, electroplating, and bead blasting — with tolerances down to ±0.01 mm.
Titanio
Aerospace- and medical-grade titanium parts in Grade 2 and Grade 5 (Ti-6Al-4V), produced on 3- to 5-axis machines. Finishes include anodizing, polishing, sandblasting, and shot peening, with precision to ±0.01 mm.
Plástico CNC
ABS
Tough, impact-resistant ABS parts ideal for housings, enclosures, and functional prototypes. Available in natural and black, with finishing options like bead blasting, painting, and laser engraving. Tolerances to ±0.1 mm.
Acetal
Low-friction, dimensionally stable parts in Delrin homopolymer and acetal copolymer, perfect for gears, bushings, and precision components. Smooth as-machined finish, with bead blasting and laser marking available. Tight tolerances down to ±0.05 mm.
Acrílico
Optically clear acrylic parts in both cast and extruded forms. Choose vapor polishing for transparent, glass-like surfaces, or flame polishing for edges. Suited for displays, light guides, and viewing windows.
HDPE
Lightweight, chemical-resistant HDPE machined into tanks, liners, cutting boards, and industrial parts. Available in natural and black, with as-machined finish standard. Easy to weld and food-safe options available.
Nylon
Durable nylon parts in Nylon 6, Nylon 66, and glass-filled grades for added stiffness. Common uses include bearings, rollers, and wear pads. Finish options include bead blasting and dyeing, with tolerances down to ±0.1 mm.
PEEK
High-performance PEEK for demanding aerospace, medical, and semiconductor applications. Offered in unfilled, glass-filled (GF30), and carbon-filled (CF30) grades. Withstands high heat and chemicals; precision held to ±0.05 mm.
Fenólico
Rigid phenolic (Garolite) parts in CE (canvas), LE (linen), and XX (paper) grades. Excellent electrical insulation and dimensional stability for electrical components, jigs, and structural insulators.
Policarbonato
Strong, impact-resistant PC parts available clear or tinted, ideal for safety guards, lenses, and enclosures. Vapor polishing restores optical clarity, and bead blasting is available for matte finishes.
Polipropileno
Chemical-resistant PP machined into tanks, fittings, and lab equipment. Offered in homopolymer and copolymer grades, with as-machined or bead-blasted finishes. Lightweight and weldable.
PVC
Versatile PVC parts in Type 1 (rigid) and CPVC for chemical processing, fluid handling, and electrical insulation. Standard as-machined finish, with painting and laser engraving as options.
UHMW-PE
Ultra-high-molecular-weight polyethylene with exceptional wear resistance and low friction — great for liners, guides, and conveyor components. Available in natural and black, food-safe grades on request.
Fabricación de chapas metálicas
Aluminio
Sheet metal fabrication in 5052, 6061, and 3003 aluminum — laser cut, bent, and welded into enclosures, brackets, and chassis. Finishing options include anodizing, powder coating, brushing, and silk screening. Tolerances down to ±0.1 mm.
Cobre
Custom copper sheet parts in C101 and C110, fabricated for electrical busbars, shielding, and architectural components. Available finishes include polishing, plating, and clear coating to prevent oxidation.
Acero inoxidable
Corrosion-resistant sheet metal parts in 304 and 316, ideal for food processing, medical, and outdoor enclosures. Offered with #4 brushed, mirror polished, bead blasted, or passivated finishes. Precision bending and welding to ±0.1 mm.
Acero
Sheet steel fabrication in cold-rolled (CRS), hot-rolled (HRS), and galvanized grades. Suitable for industrial frames, panels, and brackets. Finishes include powder coating, zinc plating, painting, and black oxide.
Our Standard Surface Finish Options
Acabado superficial
ESPECIFICACIÓN
As-Machined
Ra 3,2 µm (125 µin), acabado de fresado estándar para piezas no cosméticas
Granallado
Textura mate/satinado uniforme, Ra 1,6-6,3 µm
Anodizado Tipo II
Capa de óxido de 10-25 µm sobre aluminio, varios colores disponibles
Anodizado tipo III (anodizado duro)
Revestimiento denso de 25-75 µm, hasta 70 HRC, para aeroespacial/militar
Recubrimiento en polvo
50-100 µm, amplia gama de colores, protección contra la corrosión
Acabado cepillado
Grano satinado unidireccional, Ra 0,8-1,6 µm
Pulido (acabado espejo)
Reflectante de alto brillo, Ra 0,1-0,4 µm, para piezas ópticas/médicas
Desafío
Bettinardi Golf needed a precision stainless steel putter head component with complex curved surfaces and deep cavities. Two previous CNC suppliers had already failed acceptance testing, leaving the client facing delivery risk ahead of a new product launch. The original design had manufacturability blind spots, vague tolerances, and a curved geometry that made consistent surface finishing nearly impossible.
Solución
Yijin Solution conducted a full DFM review with structural and appearance engineers, resolving machining blind spots, rebuilding the tolerance chain, and optimizing surface allowances for PVD coating. Five-axis CNC machining with 100% final inspection brought product yield from 65% to 98%, cut the per-piece cycle from 12 to 9 days, and reduced overall production costs by 18%.
Desafío
Dana, a global automotive powertrain supplier, needed a precision 316 stainless steel wheel hub flange for electric vehicles operating in high-salt, high-vibration environments. Their previous supplier couldn’t hold the required tolerances, with errors reaching ±0.035 mm against a ±0.005 mm target, causing assembly interference, abnormal road noise, and a first-pass yield of just 72%.
Solución
Yijin Solution used a five-axis machining center with a material-specific low-cutting-force strategy, custom hydraulic clamping, and constant-temperature workshop controls to manage stainless steel deformation. Drawing optimizations redefined datum references and added reinforcing ribs. Real-time in-process probing and full CMM inspection brought yield from 72% to 99.8%, eliminated rework, and reduced delivery time by 20%.
Desafío
Vextron Semiconductor needed precision electrode holders for plasma etching machines, requiring ±0.001 mm tolerance, DLC coating, and thin 2.5 mm walls in 7075-T6 aluminum. Previous suppliers could only achieve ±0.003 mm, causing uneven electrode contact and threatening etching stability. Material deformation, inconsistent coating thickness, an 8% defect rate, and lead times stretching to 12 weeks were disrupting Vextron’s assembly line.
Solución
Yijin Solution implemented a four-stage stress-relief protocol, roughing and semi-finishing the parts before an artificial aging treatment at 120°C, then finishing to eliminate residual stress in the aluminum. Custom vacuum fixturing, PCD micro-cutting tooling, and a proprietary DLC coating process held film thickness deviation within ±0.2 μm. The result was tolerance stabilized at ±0.001 mm, the defect rate reduced from 8% to 0.3%, and lead time cut from 4 weeks to 2.4 weeks.
Desafío
NVIDIA needed a high-precision heatsink enclosure for its latest AI computing servers, requiring tight dimensional tolerances of ±0.1 mm, excellent thermal conductivity, and a durable surface finish. Previous suppliers struggled to maintain consistency at scale, with quality fluctuations causing assembly difficulties, surface defects, and delivery delays that threatened NVIDIA’s rapid product rollout strategy.
Solución
Yijin Solution selected 6061-T6 aluminum for its thermal conductivity and machinability, then combined CNC laser cutting, precision bending with custom tooling, and black powder coating to meet NVIDIA’s performance and aesthetic standards. DFM collaboration with NVIDIA’s design team resolved stress concentration risks in the original design. The result was a 99.8% good product rate, tolerances held at ±0.1 mm across all key dimensions, and a 30% reduction in overall production cycle time.
Desafío
Thales Alenia Space needed complex aerospace sheet metal components in titanium alloy and high-strength aluminum alloy, requiring tolerances within ±0.005 mm and the ability to withstand extreme space environments from -150°C to +120°C. Previous suppliers could only achieve ±0.01 mm, resulting in assembly gaps, a yield rate below 85%, and delivery cycles consistently running 30% over schedule, threatening the progress of active space missions.
Solución
Yijin Solution deployed five-axis machining with a proprietary viscous soft mold forming process to reduce titanium alloy springback from 5 to 8% to below 0.5%. Low-temperature stress relief treatment eliminated residual stress to prevent deformation in space environments. Modular vacuum fixturing, real-time Renishaw probe monitoring, and full CMM inspection on every part brought yield to 99.5%, tolerance to a stable ±0.003 mm, and average delivery cycles down by 25%.
Desafío
Figure AI needed high-precision multi-surface joint components for its humanoid robots, requiring tolerances within ±0.005 mm and consistent batch quality across thousands of parts. Previous suppliers produced micron-level error fluctuations that required frequent joint re-calibration post-assembly, while scrap and rework rates above 20% were driving up costs and delaying prototype testing and pre-production timelines.
Solución
Yijin Solution deployed a Makino five-axis machining center to complete complex curved surfaces and deep cavities in a single clamping setup, eliminating cumulative positioning errors. Modular vacuum fixturing minimized deformation in thin-walled sections, while SPC monitoring at key workstations enabled real-time quality intervention rather than post-production detection. Scrap and rework rates dropped from over 20% to below 0.2%, tolerance held consistently at ±0.005 mm across all batches, and overall delivery cycles were reduced by 40%.
Empiece hoy mismo. Consiga piezas rápidamente.
Diseño gratuito de piezas mecanizadas para sus proyectos con plazos de entrega rápidos.
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