Parts Subassembly
Machined, molded, die-cast and standard parts are assembled into independent functional units.
- Machined parts
- Molded parts
- Standard parts
PRECISION ASSEMBLY
Precision Parts & Product Assembly Subassembly · Press Fit · Heat Staking · Torque Fastening · Inspection
From subassembly, press fitting, heat staking and controlled fastening to final assembly, inspection, packing and traceability, we support precision machinery, robotics, electronics and custom industrial products.
- Parts and module subassembly
- Press fitting, heat staking and fastening
- Final assembly, inspection and traceability
Subassembly
Parts and functional modules
Press Fit · Staking
Fixture-assisted joining
Torque Fastening
Standardized tightening control
Integrated
Assembly · inspection · packing
ASSEMBLY CAPABILITIES
From Parts Subassembly to Final Assembly
Based on product structure, BOM, assembly sequence and quality requirements, we provide parts subassembly, functional module assembly, final product assembly, inspection and packing, integrated with molding, machining and surface treatment operations.
Module Assembly
Shafts, bearings, gears, fasteners, motors and structural parts are assembled into functional modules.
- Shaft systems
- Motor units
- Structural modules
Final Assembly
Final products are assembled according to the BOM, work sequence and standardized instructions.
- BOM control
- Standard work
- Final assembly
Inspection & Packing
Appearance, dimensions, movement, fastening, packing protection and traceability are confirmed.
- Visual inspection
- Function check
- Traceability
ASSEMBLY CAPABILITIES
Flexible Assembly Area
Parts Subassembly · Module Assembly · Final Assembly · Inspection
ASSEMBLY PROCESSES
Assembly & Joining Processes
According to part structure, material, joining method and quality requirements, we configure manual assembly, torque fastening, press fitting, riveting, heat staking and fixture-assisted workstations, followed by inspection, packing and batch traceability.
Precision Manual Assembly
Manual assembly of small parts, springs, bushings, seals and complex structures.
- Small parts
- Springs & seals
- Complex structures
Torque Fastening
Electric or pneumatic tools are used for controlled screw fastening and tightening.
- Torque control
- Tightening sequence
- Missing-screw prevention
Press Fit & Riveting
Positioned press fitting and riveting of bearings, bushings, pins and structural parts.
- Press force
- Insertion depth
- Riveting
Heat Staking
Stable thermal joining of plastic posts, metal inserts and molded structures.
- Temperature
- Cycle time
- Staking height
Fixture-Assisted Assembly
Positioning, error-proofing, clamping and guiding fixtures improve consistency.
- Positioning
- Error proofing
- Clamping
Inspection & Packing
Appearance, movement, fastening, identification, packing and traceability are confirmed.
- Visual & motion
- Fastening check
- Packing records
Process Configuration
Workstations and joining methods are configured according to product structure, production volume, critical quality requirements and the required level of automation. Critical parameters such as press force, torque, temperature and height can be controlled and recorded.
EQUIPMENT & WORKSTATIONS
Core Equipment & Flexible Assembly Workstations
Multiple assembly, press-fit, heat-staking and fastening systems are combined with modular workstations, positioning fixtures and standardized operations to support different products and production volumes.
Semi-Automatic Press-Fit Station
Positioned press fitting and semi-automatic assembly of bearings, bushings, pins and structural components.
- Force control
- Accurate positioning
- Stable output
Four-Column Heat Staking Machine
Temperature, pressure and cycle-time control provide stable joining of plastic posts, inserts and structures.
- Temperature
- Cycle time
- Height consistency
Torque Fastening Station
Electric or pneumatic fastening tools control tightening sequence, torque and missing-screw risks.
- Torque control
- Sequence control
- Error prevention
Precision Press-In Equipment
Precision insertion of bearings, bushings, pins and small structural parts with consistent depth and position.
- Precision pressing
- Force monitoring
- Stable process
Flexible Assembly Area
Collaborative workstations support high-mix, low-volume production and efficient product changeovers.
- Flexible output
- Team workflow
- Fast changeover
Modular Assembly Workstations
Modular stations, material containers and auxiliary tools support standardized work and flexible expansion.
- Modular design
- Quick adjustment
- Flexible expansion
ASSEMBLY WORKFLOW
From Material Confirmation to Packing
A controlled assembly workflow covering engineering review, material verification, workstation preparation, standardized assembly, inspection and batch traceability helps reduce incorrect assembly, missing parts and material-mixing risks.
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Engineering & BOM Review
Confirm drawing revision, BOM, assembly sequence, critical dimensions and quality requirements.
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Material & Parts Verification
Verify in-house parts, purchased parts, standard parts, cosmetic parts and packing materials.
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Fixture & Station Preparation
Prepare positioning fixtures, error-proofing tools, press-fit tools and work instructions.
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Subassembly & Final Assembly
Complete fastening, press fitting, heat staking and module assembly according to standard work.
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Inspection & Function Check
Inspect assembly dimensions, fastening, movement, appearance and required functional items.
Packing & Traceability
Record batch, inspection and product data, followed by scratch- and impact-resistant packing.
Workflow Control
Critical torque, press-fit depth, heat-staking height, assembly clearance and functional movement can be managed through inspection standards, first-piece confirmation and batch records.
ASSEMBLY CTQ & PROCESS CONTROLS
Assembly Quality and Process Controls
Critical assembly characteristics are controlled through BOM revision management, standardized work, process parameters, error-proofing fixtures and batch traceability.
Six Engineering Controls
BOM and Revision Control
Confirm drawing revisions, BOM structure, part numbers and engineering changes.
- Revision
- ECN
- Part consistency
Assembly Sequence and SOP
Perform assembly according to documented work instructions.
- SOP
- Standard work
- Sequence
Torque and Fastening Control
Control fastening parameters, screw specifications and tightening sequence.
- Torque
- Missing screws
- Thread protection
Press Force and Insertion Depth
Manage force, depth and perpendicularity during precision press fitting.
- Force
- Depth
- Perpendicularity
Fixture Error Proofing
Use positioning fixtures and poka-yoke features to control part orientation.
- Fixtures
- Poka-yoke
- Orientation
Function Check and Traceability
Record assembly results, inspection status and product batch data.
- Function
- Batch records
- Traceability
Assembly CTQ Matrix
Fastening
TORQUE CONTROL
- Torque
- Missing screws
- Floating screws
- Thread damage
- Screw specification
Press Fit
PRESS FIT
- Press force
- Insertion depth
- Perpendicularity
- Deformation
- Loosening
Heat Staking
HEAT STAKING
- Temperature
- Time
- Height
- Joint appearance
- Joint strength
Final Assembly
FINAL ASSEMBLY
- Clearance
- Movement
- Abnormal noise
- Appearance
- Part completeness
Packaging
PACKAGING
- Quantity
- Label
- Orientation
- Protection
- Batch record
ASSEMBLY APPLICATIONS
Applicable Components & Product Types
Suitable for multi-level assembly needs from precision sub-assemblies and functional modules to final product assembly, covering robotics, liquid cooling, optical communication, electronics, and custom industrial products.
Precision Mechanical Components
Suitable for sub-assemblies and functional assemblies built from shafts, sleeves, brackets, housings, and standard parts.
- Sub-assemblies
- Functional units
- Standard hardware
Robot Joint & Actuator Assemblies
Suitable for fastening, press-fit, heat staking, and final assembly of joint modules, actuator sub-assemblies, and transmission units.
- Joint modules
- Actuators
- Transmission units
Liquid Cooling Accessories & Modules
Suitable for cooling plate accessories, fluid connectors, sealing units, and other liquid-cooling related functional modules.
- Cooling accessories
- Sealed connections
- Functional modules
Optical Module Structural Assemblies
Suitable for small precision assembly and inspection of heat sinks, housings, brackets, and optical communication structural parts.
- Structural parts
- Thermal parts
- Precision assembly
Electronic Equipment Structural Assemblies
Suitable for assembly and poka-yoke confirmation of enclosures, frames, connection structures, and insert-related parts.
- Enclosures
- Structural frames
- Mixed-material assembly
Custom Industrial Products & Final Assemblies
Suitable for custom industrial product assembly and packaging according to BOM, assembly sequence, and work instructions.
- Module assembly
- Final assembly
- Inspection & packing
RFQ REQUIREMENTS
Information Required for Assembly Quotation
Complete RFQ information supports an accurate review of assembly feasibility, process planning, inspection requirements, lead time and pricing.
Drawings & BOM
Part / assembly / exploded drawings / revision
Assembly Sequence
Fastening / press fit / heat staking / steps
Material Sources
In-house / customer-supplied / purchased / standard
CTQ & Inspection
Torque / press force / function / appearance
Quantity & Lead Time
Sample / pilot / production / schedule
Packing & Traceability
Labels / barcodes / batches / protection
ENGINEERING FAQ
Common Engineering Questions
What levels of assembly can you support? View answer
We support component sub-assemblies, functional modules, subsystem assembly and final product assembly. Scope depends on BOM completeness, part sourcing, joining processes, inspection requirements and delivery format.
Can you source purchased and standard parts? View answer
We can assist with screws, bearings, seals, connectors and other standard parts. Specified brands and critical functional parts require clear model numbers, supplier requirements and substitution rules.
How do you prevent incorrect or missing assembly? View answer
Controls include BOM and revision management, material segregation, defined assembly sequence, positioning fixtures, poka-yoke fixtures, first-piece approval and in-process inspection.
How are screw torque and fastening quality controlled? View answer
Screw specification, torque range and fastening sequence are defined, followed by checks for missing, floating, stripped or loose screws and the final assembled condition.
How are press fitting and heat staking controlled? View answer
Press fitting focuses on force, depth, perpendicularity, deformation and loosening. Heat staking focuses on temperature, time, height, joint appearance and connection strength.
Can you support functional inspection and traceability? View answer
Dimensional, movement, appearance, fastening and required functional checks can be performed, with batch, inspection, label and product traceability records.
