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Assembly

Achieve precise and reliable sheet metal bending with expert techniques, transforming flat materials into accurately formed components. Our advanced processes ensure consistent angles, tight tolerances, and ready-to-assemble parts, supporting both prototypes and large-scale production. 

Assembly Facility
Advanced Assembly Equipment

What Are The Assembly Services?

Our complete assembly solutions convert separate components into fully finished, ready-to-use products or integrated subassemblies with precision and efficiency. Our skilled team manages mechanical, electromechanical, and custom part assemblies with accuracy and efficiency, ensuring each piece fits and operates as designed. From prototyping to large-scale production, these services optimize your supply chain, shorten lead times, and maintain consistent quality from fabrication to final delivery.

Tolerance Table for Assembly Services

Assembly Type Fit Type Tolerance Range (mm) Typical Application
Press Fit / Interference Fit Tight Fit ±0.005 to ±0.01 Bearings, dowel pins, structural joints
Slip Fit / Clearance Fit Loose Fit ±0.02 to ±0.05 Shafts, pulleys, components requiring movement
Alignment Assemblies Precision Fit ±0.01 to ±0.02 Optical housings, sensors, precision stages
Threaded Assembly Standard Tapped Fit Class 2B (±0.13 for M6) Fastener mating parts, mechanical assemblies
Welded/Bonded Assembly General Fabrication ±0.1 to ±0.2 Frames, panels, enclosures
Modular/Stacked Assemblies High Repeatability ±0.01 to ±0.03 Automation equipment, tooling fixtures
Mechanical Sub-assemblies Functional Fit ±0.02 to ±0.1 Gearboxes, valves, housings
Electronic/PCB Assemblies Close Fit ±0.05 to ±0.1 PCB mounting holes, component placement

Comprehensive Assembly Solutions for Ready-to-Use Components

Our assembly services ensure fully integrated mechanical and electronic components are delivered ready for immediate deployment. From basic sub-assemblies to intricate multi-part systems, our team ensures precise and careful assembly. Integrating machining, finishing, and assembly into a single process allows us to speed up production while ensuring consistent quality at every step.

Assembly Line Operations, assembly services

Materials for Assembly Services

Engineers and leading manufacturers trust Yicen Precision for fast iterations and durable, high-performance parts. Whether for prototyping or full-scale production, our extensive material selection ensures precision, strength, and reliability for any CNC machining project.

6061
7075
5052

303
304
316
17-4 PH

1018
140
4340

C110
C360

POM (Delrin)
Nylon
PTFE
PEEK

ABS
Acrylic
Polycarbonate

G10/FR4
Carbon Fiber

Silicone
Neoprene
Nitrile

Titanium
Inconel
Ceramics

Surface Finishing for Assembly Services

At Yicen Precision, our assembly services ensure your multi-component projects are expertly put together, tested, and ready for deployment.

Precision Assembly

 We handle complex assemblies with tight tolerances, guaranteeing proper fit, alignment, and function.

Custom Solutions

 Whether your project requires sub-assemblies or full product assembly, we tailor our process to meet your specifications.

Streamlined Production

 Our integrated assembly services reduce your lead time by combining manufacturing and assembly under one roof.

Quality Inspection & Testing

 Each assembly undergoes thorough inspection and functional testing to ensure reliability, accuracy, and consistent performance.

Hardware Installation

 We install fasteners, inserts, bearings, seals, and other hardware components to ensure complete, ready-to-use assemblies.

Bonding & Adhesive Application

Offers precision adhesive bonding and sealant application for assemblies requiring structural or airtight joints.

Packaging & Kitting

Completed assemblies can be packaged, labeled, and kitted according to your shipping or production needs, ready for immediate distribution.

Electromechanical Assembly

We handle assemblies that include wiring, sensors, switches, and other electrical components, ensuring proper integration and testing.

Connect With Us

Transform Concepts into Precision Parts

We specialize in converting your ideas into high-quality, functional components with unparalleled speed and accuracy. With advanced technology and expert craftsmanship, we create parts that meet the most complex specifications.

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Which Technologies Are Used in Assembly Services?

Modern assembly services rely on a combination of advanced technologies and skilled craftsmanship to deliver precise, ready-to-use components. At the core of these services are automated and semi-automated processes that enhance efficiency while maintaining tight tolerances.

CNC Machining Integration

Computer Numerical Control (CNC) machines are often integrated into assembly workflows to ensure that every part fits perfectly. CNC machining delivers high repeatability with tolerances often within ±0.01 mm, which is crucial for complex multi-part assemblies.

Robotic Assembly Systems

Robotics is increasingly used in assembly lines, particularly for repetitive tasks such as component placement, fastening, or soldering. Robots can operate at speeds of 50–200 parts per minute while maintaining consistent accuracy, reducing human error and improving overall efficiency.

Quality Inspection and Testing

Assembly services now include integrated testing technologies, such as optical inspections, pressure and torque testing, and electronic functional testing. These checks ensure each assembly meets design specifications and operational standards, reducing post-production failures.

Cleanroom Assembly

For sensitive applications, such as medical devices or electronics, cleanroom technologies maintain controlled environments with minimal contamination. Air filtration systems, humidity controls, and specialized workstations protect components and enhance product reliability.

Automated Material Handling

Automated feeders, robotic arms, and conveyor systems efficiently move components throughout the assembly process, enhancing workflow and reducing handling time. This reduces handling time, minimizes errors, and ensures a smooth workflow from machining to final assembly.

What Are The Perks of Using Assembly Services?

Using professional assembly services provides significant advantages to manufacturers, startups, and product designers.

Reduced Lead Times

Combining machining, finishing, and assembly under one roof drastically cuts production timelines. Instead of coordinating multiple vendors, components move seamlessly from fabrication to final assembly, often reducing lead times by 20–40%.

Consistent Quality

With precision tools, CNC integration, and automated testing, assembly services guarantee consistent quality across every part. Tolerances are maintained, functional checks are completed, and the final product meets rigorous standards.

Scalability

Professional assembly services can scale from small prototype runs to full-scale production efficiently. Whether you need 50 units for testing or 5,000 for commercial distribution, these services adapt to your requirements without compromising quality.

Ready-to-Use Products

Our assembly services provide fully integrated, tested, and ready-to-use components or systems, eliminating the need for extra post-production steps and speeding up time-to-market.

Focus on Core Competencies

Outsourcing assembly enables engineers and designers to concentrate on innovation and product development while trusted professionals handle production and integration.

Yicen Machining Solutions

Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Yicen machining services offer the flexibility you need.
Rapid Prototyping
CNC rapid prototype machining is perfect for creating engineering or production prototypes that closely resemble the final product in both appearance and functionality. At Yicen, we offer instant quotes and fast delivery, providing you with precise, high-quality CNC machined prototypes for your needs.
Low Volume Manufacturing
Low volume CNC machining often acts as a bridge between prototyping and mass production for new and emerging production. With Yicen, this process becomes easier, more efficient, and cost-effective, allowing you to scale production quickly while maintaining high-quality standards.
End-use Production
CNC production machining is the best solution for producing a thousand parts or more efficiently. Leveraging a diverse selection of materials and automation and multi-axis capabilities, Yicen delivers high-volume production with tight tolerances, superior dimensional accuracy, high reliability and fast turnaround times.

Insights & Articles

Explore Machining services blog for expert insights on CNC machining, industry trends, manufacturing tips, and technology updates—designed to keep you informed, inspired, and ahead in precision engineering.

Frequently Asked Questions

Assembly Services

  • What types of assemblies can you handle?

    We assemble mechanical, electro-mechanical, and precision-fit components. 

  • Do you offer testing for assembled parts?

    Yes, we provide functional and dimensional testing. 

  • Can you manage both small and large batch assembly?

    Absolutely, we handle prototypes to full production volumes. 

  • How do you ensure quality during assembly?

    Through skilled technicians, inspection, and quality control protocols. 

  • Can you handle custom assembly instructions?

    Yes, we follow customer-provided assembly procedures closely. 

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Get In Touch With Us!
Prompt response guaranteed within 12 hours
🔐 All uploads are secure and confidential