Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
Custom Manufacturing Services We Provide
We provide a wide range of metal processing and custom manufacturing services to support industrial parts, mechanical components, hardware structures, equipment accessories, and non-standard metal products. From rough forming to precision machining, we help customers complete different production requirements with stable quality, flexible customization, and reliable delivery.
Precision turning, milling, drilling, slotting, and chamfering for mechanical parts and assembly components.
Cutting, bending, punching, welding, and forming for enclosures, frames, covers, cabinets, and custom sheet metal parts.
Efficient production of washers, clips, brackets, stamped sheets, and standardized hardware parts.
Aluminum and zinc alloy die casting for precision housings, structural parts, and batch production.
High-precision processing for complex shapes, mold parts, thin plates, fine holes, and difficult-to-machine workpieces.
High-strength forged blanks and load-bearing metal components for heavy-duty mechanical applications.
Custom Hardware Parts & Components
From single-piece prototypes to high-volume production, we deliver end-to‑end manufacturing solutions across six specialized categories.
Every category is backed by in‑house engineering, advanced equipment, and strict quality control to meet your most demanding specifications.
Every category is backed by in‑house engineering, advanced equipment, and strict quality control to meet your most demanding specifications.
Precision Machined Parts
CNC Turning · Milling · Grinding · EDM · Wire EDM
We produce high‑accuracy metal and plastic components with tolerances as tight as ±0.005 mm. Our multi‑axis CNC machines handle complex geometries, from shafts and bushings to valve bodies and connector housings. Materials include stainless steel, aluminum, brass, titanium, and engineering plastics.
Applications: automotive sensors, medical instruments, aerospace fittings, hydraulic systems.
Sheet Metal & Stamping Parts
Laser Cutting · Bending · Punching · Deep Drawing · Welding
Our sheet metal workshop offers rapid prototyping and batch production of enclosures, brackets, panels, and heat sinks. For stamping, we design progressive dies to produce high‑volume terminals, springs, and contact parts with consistent quality. Value‑added finishing (powder coating, anodizing, plating) is available.
Applications: electronic housings, automotive structural parts, industrial cabinet frames.
Fixtures, Jigs & Tooling
Custom Workholding & Assembly Aids
We design and manufacture manual, pneumatic, and hydraulic fixtures for drilling, tapping, welding, and inspection. Our jigs ensure repeatable positioning and reduce cycle times. We also offer modular fixturing systems for flexible production lines.
Applications: automotive sub‑assembly lines, aerospace component positioning, electronic board testing.
Molds & Dies
Injection Molding · Die‑Casting · Stamping · Transfer Molding
We provide full‑cycle mold/die design, simulation (Moldflow), manufacturing, and trial runs. Our capabilities include plastic injection molds (hot/cold runner), aluminum/zinc die‑cast dies, progressive stamping dies, and rubber/silicone transfer molds. We also offer maintenance, repair, and modifications for existing tools.
Applications: consumer electronics enclosures, automotive interior/exterior parts, medical device housings.
Automation Equipment & Integration
Assembly Lines · Robotic Systems · Testing & Inspection · Conveyors
We engineer custom automation solutions that boost productivity and consistency. Services include concept design, mechanical/electrical integration, PLC programming, and on‑site commissioning. We can retrofit existing lines or build turnkey stations for assembly, leak testing, vision inspection, and packaging.
Applications: automotive powertrain assembly, electronic component sorting, pharmaceutical filling lines.
Custom Assemblies & Value
Sub‑Assembly · Welding · Bonding · Leak Testing · Packaging
Beyond producing individual parts, we assemble multi‑component sub‑systems – for example, sensor brackets with fasteners, actuator modules, or pneumatic valve assemblies. We provide cleaning, adhesive bonding, resistance welding, and functional testing to deliver ready‑to‑install components. This one‑stop service reduces your supplier management and logistics costs.
Applications: automotive engine peripheral assemblies, industrial sensor packages, medical consumable kits.
0
Years CNC Professional Factory
0
Machining Equipments
0
Per Month Capacity
3/4/5
MachineryAxis
0.001mm
Tolerance
10000
Facatory Area
About Changye
Part Machining Mechanical Large Part Manufacturer
CHANGYE is a precision hardware and mechanical components manufacturer based in Dongguan, China, specializing in CNC machining and non-standard custom parts. With full-process in-house production from raw material forming to CNC machining and surface finishing, we deliver stable quality, efficient lead times, and competitive factory pricing.
Precision CNC Machining
Equipped with advanced CNC milling, turning, and lathe capabilities, CHANGYE produces high-accuracy hardware parts according to custom drawings and specifications.
Full-Process In-House Production
From forging and machining to surface treatment, every key process is managed inside our own factory to ensure better quality control and faster delivery.
Custom Hardware Solutions
We support non-standard customization for industrial hardware and mechanical components used in machinery, electronics, equipment, and other demanding applications.
5-Axis CNC Machining Centers
Capacity:31 Sets
Tolerance:±0.003mm
Tolerance:±0.003mm
Precision CNC Machining
Capacity:78 Sets
Tolerance:±0.01mm
Tolerance:±0.01mm
CNC Turning Centers
Capacity:10 Sets
Tolerance:±0.01mm
Tolerance:±0.01mm
Precision Surface & Cylindrical Grinding
Capacity:23 Sets
Tolerance:≤0.002mm
Tolerance:≤0.002mm
Wire EDM — Slow / Mid / Fast Wire
Capacity:24 Sets
Tolerance:≤0.005mm
Tolerance:≤0.005mm
Sinker EDM (Die-Sink)
Capacity:25 Sets
Tolerance:≤0.005mm
Tolerance:≤0.005mm
Milling Machines
Capacity:16 Sets
Tolerance:≤0.02mm
Tolerance:≤0.02mm
Forging Machines
Capacity:10Sets
Tolerance:≤0.002mm
Tolerance:≤0.002mm
Hardware Parts Processing Capabilities
200+ world-class machines from Germany, Japan, and beyond—covering every process from 5-axis simultaneous machining to ultra-precision grinding, ready to deliver your custom hardware parts from prototype to mass production.
Three Capabilities. One Reliable Partner.
Full-service investment casting in stainless steel, carbon steel, and alloy steel. From precision casting through machining to finished sales-ready product—we handle the entire value chain under one roof.
40+ CNC machine tools in-house, including large vertical gantry milling machines with a working envelope of 6500 × 4200 × 1800 mm. Whether your part fits in your hand or fills a bay, we have the equipment to cut it.
Custom surface treatment to your specifications and industry standards—because a part isn’t finished until it looks and performs the part.
Investment Casting Services
Precision casting is the backbone of modern hardware manufacturing. It produces complex, dimensionally accurate parts with excellent surface finish—handles, hinge assemblies, lock bodies, and beyond.
Changye delivers high-quality casting at competitive cost. Our one-stop capability covers every stage of the process:
- Design & Engineering — Mould design, prototype development
- Casting & Machining — High-precision investment casting and secondary machining
- Surface Finishing — Polishing, galvanizing, nickel plating, electroplating, chrome plating, anodizing, phosphating, acid treatment, broaching, milling, drilling, tapping, sandblasting, powder coating
- Post-Processing — Heat treatment, qualification and testing
- Value-Added Solutions — Full one-stop service from raw metal to shipped product
Precision CNC Machining Services
We are a leading CNC machining provider in China. Our 3-, 4-, and 5-axis CNC milling centers, turning centers, and CNC lathes produce precision parts that meet your custom specifications—delivered on time, at factory-direct pricing.
3-, 4-, and 5-axis machining for both simple and complex geometries. Tight tolerances, repeatable results.
CNC turning with live tooling combines lathe and milling functions in a single setup—ideal for parts with cylindrical features and intricate cross-sections.
Complete your parts with anodizing, sandblasting, powder coating, plating, and more. Every finish is applied to spec, tested, and ready for assembly.
From cast to machined to finished, Changye is the single source that gets yourhardware parts right-on spec, on time, on budget.
Frequently Asked Questions (FAQs)
If you still have questions about the product, please contact us. We will reply immediately after receiving your email or online message. For more questions, please click FAQs.
Can products be customized to meet specific application requirements?
Yes. We offer full customization services, delivering tailored solutions based on your specific requirements for indexing angles, positioning hole patterns, mounting dimensions, and other specifications.
Do you support custom design requests?
Absolutely. We provide fully customized services—selecting materials and designs according to your specific usage scenarios to meet diverse application requirements.
What is the minimum order quantity (MOQ)? What is the delivery lead time?
Changye offers a minimum order quantity of 200 pieces, with a standard delivery lead time of 10–15 business days.
What specifications are available, and is customization supported?
Our Indexing Plungers with Rest Position are available in multiple standard specifications, including thread sizes M5, M6, M8, M10, M12, and M20. Custom specifications can also be produced to meet your specific requirements.
How do you ensure reliability for custom designs used in critical applications?
Our Indexing Plungers with Rest Position are available in multiple standard specifications, including thread sizes M5, M6, M8, M10, M12, and M20. Custom specifications can also be produced to meet your specific requirements.
Our OEM Projects
We manufacture CNC lathe parts, milled parts, precision Swiss machined parts, which are widely used in the fields of medical, electronic equipment, automotive industry, aerospace, intelligent robotics and industrial automation.
Customize various non -standard fasteners products for Customers
We are setup for flexible machining productions. We work with high mix/ low volume cases as well as high volume projects (use automatic feeding and robotic operations to achieve low cost).
20 +Years
With 20 years of experience in producing
100 +
Professional equipments
1,0000㎡
Factory size
30000+ Projects
Over 30K projects have been sent to our customers worldwide in the past 20 years
What peoples say about us
Real feedback from industry leaders who count on us for quality, speed, and custom engineering.
David L
Procurement Manager
“100% On-Time Delivery for Complex Custom Orders.”
“Managing non-standard fasteners globally is tough, but Changye makes it easy. Even during peak seasons, they delivered our complex hardware parts ahead of schedule with unmatched cost-efficiency. A truly reliable partner.”
Marcus V
Senior R&D Engineer
“Flawless Precision & Expert Engineering Support.”
We needed extremely tight tolerances +0.02 mm for a new robotics project. Changye’s team grasped our drawings instantly and optimized the CNC process. The samples passed our strict QA on the very first run.”
Sarah T
Supply Chain Director
Incredible Flexibility for Low-Volume, High-Mix Runs.”
“Changye stands out for their fast response and flexible MOQ. They easily handled our prototyping needs and engineering changes within hours. Their one-stop service from sourcing to surface treatment saves us immense time.”