Electromechanical Assembly Services

At Sierra Assembly, we specialize in electromechanical assembly, providing reliable solutions for industries ranging from aerospace and automotive to medical and industrial automation. Electromechanical assembly involves integrating electrical and mechanical components into a single system, enabling complex functions such as motion control, signal conversion, or power distribution.

With decades of experience, we ensure that each assembly is built with precision, quality, and efficiency to meet the exacting demands of modern technology.

What is Electromechanical Assembly?

Electromechanical assembly is the process of combining electrical and mechanical components into a fully integrated system designed to perform specific tasks. At Sierra Assembly, we provide end-to-end electromechanical assembly services from prototyping and integration to testing and final assembly..

Core Components of electromechanical

Category	Components
Electrical Elements	Printed Circuit Boards (PCBs), Wire harnesses and cable assemblies, Power supplies, switches, and connectors, Sensors and actuators
Mechanical Elements	Motors and solenoids, Gears, bearings, and actuators, Enclosures, brackets, and structural frames

Common Assembly Types

Box Builds: Complete integration of components within a final enclosure.
Panel Assemblies: Integrated panels for distributing power and signals across circuits.
DIN Rail Assemblies: Metal rails used to mount industrial control products like terminal blocks and relays.
Sensor & Switch Assemblies: Devices that convert external stimuli such as motion, heat, or light into electrical signals or control current flow.

Key Industries & Applications

Electromechanical assemblies are crucial in sectors that demand precision, durability, and reliability:

Industry	Typical Applications
Aerospace	Cockpit panels, fly-by-wire controls, satellite thrusters
Automotive	Power windows, ABS systems, electric power steering
Medical	MRI machines, drug delivery systems, IV pumps, defibrillators
Industrial	Robotic arms, automated material handling, CNC machines
Consumer Electronics	Smart home devices, wearable technology

If you’re looking to develop high-quality electromechanical assemblies for your industry, contact Sierra Assembly today to discuss your project

The Electromechanical Assembly Process at Sierra Assembly

At Sierra Assembly, our electromechanical assembly process combines engineering expertise, skilled technicians, and advanced tools to deliver reliable and high-quality results for every project. We follow a structured workflow to ensure precision, efficiency, and durability:

Preparation: Our specialists review blueprints, schematics, and design requirements to plan the assembly.
Fabrication & Mounting: Components are assembled using drilling, soldering, surface -mounting, and mechanical fastening techniques.
Integration: Complex wiring and cable harnesses are routed and connected to subsystems.
Testing: Every assembly undergoes rigorous functional testing, calibration, and verification to ensure it meets strict tolerances and safety standards.

Techniques Used in Electromechanical Assembly

Electromechanical assembly combines electrical interconnection techniques with mechanical integration methods to deliver robust systems:

Electrical Interconnection

Technique	Key Details
Soldering	Hand, wave, and selective soldering for precise PCB assembly and electromechanical assembly.
SMT & THT	Surface-Mount Technology (SMT) for high-density placement; Through-Hole Technology (THT) for strong mechanical connections.
Point-to-Point Wiring	Direct connections for high-power or specialized circuit assemblies.
Wire Wrapping	Creates reliable, gas-tight connections without solder.
Cable & Harnessing	Cut, strip, crimp, and label wires to organize power and signal distribution in electromechanical assemblies.

Mechanical Fastening & Integration

Mechanical Technique	Key Details
Screws, Bolts, Rivets	Used for permanent or semi-permanent joints in electromechanical assembly.
Welding, Adhesive Bonding	MIG/TIG welding for metals, ultrasonic welding for plastics, and adhesives for strong, corrosion-resistant joints.
Clinching, Press-Fitting	Cold-forming methods to attach components without damaging materials or structure.

Modern & Advanced Techniques

Advanced Technique	Key Details
Additive Manufacturing (3D Printing)	Rapid prototyping of custom fixtures, tooling, and sensors
Pneumatic Dispensing	Precise application of adhesives, thermal pastes, or other compounds
Automated Inspection	3D AOI and X-ray inspection to verify internal solder joints and component alignment
Industrial Robotics	High-speed robots for automated assembly of dense PCBs and complex sub-assemblies

Inspection and Quality Testing

We perform rigorous inspections at every stage of electromechanical assembly to ensure reliability and compliance with design specifications:

Visual Inspection
Solder Paste & Pre-flow Inspection
X-ray Inspection
3D Automated Optical Inspection (AOI)
In-circuit Testing
Functional Testing
Final Assembly AQL Inspection

These processes help detect issues early, maintain quality, and reduce costly post-production errors.

If you’d like to learn more about our inspection and quality testing services, click here to explore our detailed PCB inspection capabilities

Benefits of Partnering with Sierra Assembly

Benefit	Description
Prototypes	Physical and digital prototypes allow early testing, performance analysis, and error correction.
Full Process Support	Comprehensive guidance from design and procurement to assembly and testing.
Well-Equipped Facility	Chino, CA facility supports end-to-end assembly, testing, and inspection.
Skilled Workforce	Technicians with decades of combined experience ensure high-quality assemblies.
Competitive Prices	Lean manufacturing and strong supply chain partnerships enable cost-effective solutions.

Why Choose Sierra Assembly for Electromechanical Assembly?

Partnering with Sierra Assembly ensures your assemblies are precise, reliable, and delivered on time:

Skilled Technicians: Our IPC-certified technicians handle high-density and complex boards.
Full-Service Capabilities: From procurement to design, assembly, and inspection.
Rapid Prototyping: Early prototypes allow testing and performance validation.
State-of-the-Art Facility: In-house tools, automated systems, and decades of experience.
Quality Assurance: Rigorous functional and visual testing to meet or exceed specifications.
Competitive Pricing: Lean manufacturing and strong supply chain partnerships reduce costs.

Ready to bring your electromechanical assembly project to life? Partner with Sierra Assembly for precision, reliability, and fast turnaround times. Contact our expert team today to discuss your requirements, request a quote, or explore our full range of assembly services. Let us help you turn your designs into high-quality, fully functional assemblies.

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Electromechanical Assemblies

Electromechanical Assembly Services

What is Electromechanical Assembly?

Common Assembly Types

Key Industries & Applications

The Electromechanical Assembly Process at Sierra Assembly

Techniques Used in Electromechanical Assembly

Inspection and Quality Testing

Benefits of Partnering with Sierra Assembly

Why Choose Sierra Assembly for Electromechanical Assembly?

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