Industrial Manufacturing Inspection Services
Independent inspection across fabrication, assembly, welding, coating, dimensional verification, documentation, testing, FAT, supplier surveillance and final inspection for manufactured industrial equipment.
Industrial manufacturers work across different materials, fabrication processes, standards and client requirements.
Dilenza provides qualified inspectors at manufacturers, suppliers and fabrication facilities worldwide, covering welding and coating inspection alongside dimensional verification, documentation review, test witnessing, FAT attendance and final inspection.
Inspector profiles are selected according to the equipment, manufacturing process, applicable standards, technical scope, location and required inspection duration.

Inspection at Industrial Manufacturers
Manufacturing inspection should follow the product and fabrication process.
One supplier may require inspection at a single final hold point.
Another may require recurring welding and coating surveillance throughout several months of production.
Dilenza can support:
- Welding inspection
- Protective coating inspection
- Third-party vendor inspection
- Supplier inspection
- Manufacturing surveillance
- Fabrication inspection
- Resident inspection
- Multi-site inspection
Manufacturing Welding Inspection
Dilenza welding inspectors can support the manufacture of:
- Fabricated machinery
- Industrial equipment
- Welded structures
- Skids and frames
- Piping assemblies
- Pressure-related components
- Heavy fabricated components
- Structural assemblies
- Project-specific welded equipment
Typical Welding Inspection Activities
Depending on the project:
- Material identification and traceability
- WPS verification
- PQR review
- Welder qualification verification
- Joint preparation
- Fit-up inspection
- Welding surveillance
- Welding parameter verification
- Preheat and interpass monitoring
- Visual welding inspection
- NDT witnessing
- Dimensional inspection
- Weld repair follow-up
- Final documentation review
Protective Coating Inspection for Manufactured Equipment
Fabricated equipment and structures may require protective coating systems suited to their operating environment.
Dilenza coating inspectors can support:
- Fabricated steel
- Industrial machinery
- Equipment frames
- Skids
- Structural assemblies
- Piping components
- Tanks and fabricated vessels
- Other coated industrial products
Typical Coating Inspection Activities
Depending on the project:
- Coating specification review
- Surface-condition assessment
- Surface preparation
- Surface cleanliness
- Surface-profile measurement
- Dust and contamination checks
- Environmental-condition monitoring
- Dew-point measurement
- Relative-humidity monitoring
- Steel-temperature checks
- Coating-material verification
- Application surveillance
- Stripe-coat inspection
- Wet-film thickness
- Dry-film thickness
- Holiday testing
- Adhesion testing
- Coating repair inspection
- Final documentation
Third-Party Manufacturing & Vendor Inspection
Dilenza can provide independent inspectors to represent clients at manufacturers and suppliers.
Inspection can support:
- Owners
- EPC organizations
- Procurement teams
- Equipment purchasers
- Manufacturers
- Project quality teams
Depending on the assignment, third-party inspection can include:
- Vendor surveillance
- Source inspection
- Manufacturing process inspection
- Welding surveillance
- Coating inspection
- ITP attendance
- Hold points
- Witness points
- Dimensional inspection
- NDT witnessing
- Test witnessing
- Repair follow-up
- Final inspection
- Pre-shipment inspection
- Documentation review
Equipment & Fabrication We Can Support
Industrial Machinery
Inspection of welded machinery, fabricated frames and structural assemblies.
Skids & Packaged Equipment
Welding and coating inspection for integrated equipment packages and supporting structures.
Fabricated Steel Components
Inspection for project-specific welded steel products and assemblies.
Piping Assemblies
Inspection of fabricated piping, manifolds, headers and related welded components.
Heavy Fabrication
Inspection for large fabricated components, plate structures and industrial assemblies.
Project-Specific Equipment
Inspector requirements can be reviewed for other manufactured equipment where welding or protective coatings form part of the quality scope.
Inspection Across the Manufacturing Process
Before Fabrication
- Project specification review
- Drawing review where assigned
- Inspection and Test Plan review
- Material certificates
- Material traceability
- WPS verification
- Welder qualifications
- Coating specifications
- Acceptance criteria
During Manufacturing
- Fit-up
- Welding surveillance
- NDT witnessing
- Dimensional inspection
- Repair follow-up
- Surface preparation
- Coating application
- Production-status reporting
At Completion
- Final visual inspection
- Dimensional verification
- Coating verification
- Test witnessing
- Punch-list follow-up
- Documentation review
- Pre-shipment inspection
Vendor Inspection at Fabrication Facilities
Industrial projects frequently purchase equipment from manufacturers located away from the final project site.
Third-party inspection gives the client technical visibility while the equipment is still being produced.
A typical manufacturing sequence may involve:
- 01Material Receipt
- 02Fabrication
- 03Fit-Up
- 04Welding
- 05NDT
- 06Dimensional Inspection
- 07Coating
- 08Testing
- 09Final Inspection
- 10Documentation
Inspection can be organized around specific ITP points or maintained through recurring or resident coverage.
FAT & Final Manufacturing Inspection
Where assigned, inspectors can support final manufacturing stages such as:
- Final visual inspection
- Dimensional verification
- Documentation review
- Functional or project-specific test witnessing
- Factory Acceptance Test witnessing
- Coating final inspection
- Punch-list follow-up
- Pre-shipment inspection
The exact FAT or release responsibility must always be defined by the project.
Manufacturing Standards & Project Requirements
Industrial manufacturing projects can operate under different technical requirements depending on the equipment and destination market.
Requirements may originate from:
- AWS
- ASME
- API
- ISO
- EN
- Client specifications
- EPC specifications
- Manufacturing drawings
- Approved procedures
- Inspection and Test Plans
Protective coating requirements may include:
- ISO standards
- AMPP requirements
- Client coating specifications
- Manufacturer requirements
- Project coating specifications
The applicable standard, edition, inspection responsibility and acceptance criteria must always be established from controlled project documentation.
Selecting an Industrial Manufacturing Inspector
Certification alone does not define whether an inspector is suitable for a manufacturing assignment.
Dilenza considers:
- Welding or coating discipline
- Equipment type
- Manufacturing experience
- Materials
- Welding processes
- Coating systems
- Applicable standards
- Fabrication methods
- Required testing
- Supplier environment
- Location
- Language
- Availability
- Assignment duration
Welding Inspector Profiles
Depending on the requirement:
- AWS CWI
- CSWIP Welding Inspector
- CSWIP Senior Welding Inspector
- International Welding Inspector
- Relevant NDT qualifications
- Other project-specific credentials
Coating Inspector Profiles
Depending on the requirement:
- AMPP coating inspection qualifications
- FROSIO qualifications
- Other project-specific credentials
Review the Inspector Before Deployment
Relevant industrial manufacturing inspector profiles can be presented for client technical assessment before confirmation.
The client can review:
- Qualifications
- Manufacturing experience
- Equipment experience
- Welding or coating background
- Standards familiarity
- Supplier inspection experience
- Reporting capabilities
- Language
- Location
- Availability
Where required, interviews with shortlisted inspectors can be arranged before final selection.
Inspection Coverage Built Around Production
Single Inspection Visit
One defined hold point, witness point, test or final inspection.
Recurring Inspection
Planned visits aligned with manufacturing milestones.
Resident Inspector
Continuous technical presence during extended fabrication programs.
Short-Term Inspection
Inspection support during a specific manufacturing stage or production period.
Multi-Site Inspection
Inspection coordinated across several manufacturers or suppliers.
Inspection presence should follow the manufacturing schedule.
Multi-Supplier Manufacturing Inspection
Large projects may source different equipment packages from several manufacturers.
For example:
- Supplier A
Fabricated machinery
- Supplier B
Structural assemblies
- Supplier C
Piping packages
- Supplier D
Skids and equipment frames
- Supplier E
Coated fabricated components
Dilenza can coordinate welding and coating inspectors across several suppliers and manufacturing locations.
Inspection Reporting
Depending on the assignment, reporting can include:
- Inspection visit reports
- Daily reports
- Photographs
- ITP status
- Material status
- Welding observations
- NDT status
- Dimensional observations
- Coating observations
- Environmental readings
- DFT records
- Test status
- Repair follow-up
- Punch lists
- Production status
- Final summaries
Reporting format and communication requirements can be aligned before deployment.
Frequently Asked Questions
Does Dilenza provide both welding and coating inspectors for manufacturers?
Yes. Inspection can cover welding, protective coatings or both disciplines according to the product and project requirements.
Does Dilenza provide third-party vendor inspection?
Yes. Inspectors can represent clients at manufacturers and suppliers during defined fabrication and testing stages.
Can Dilenza provide recurring inspection at a supplier?
Yes. Visits can be scheduled around ITP points, manufacturing milestones or production stages.
Can Dilenza provide a resident inspector at a manufacturer?
Yes. Resident inspectors can provide continuous technical presence during extended manufacturing programs.
Can inspectors witness FAT activities?
Where FAT witnessing forms part of the agreed inspection scope, an inspector can attend and report according to the project requirements.
Can Dilenza inspect both welding and coating during the same manufacturing program?
Yes. Separate welding and coating inspectors can be provided where the technical scope requires both disciplines.
Can we interview inspectors before deployment?
Yes. Relevant profiles can be presented for technical review and shortlisted inspectors can be interviewed where required.
Can Dilenza inspect several suppliers simultaneously?
Yes. Multi-site inspection can be structured across multiple manufacturing locations.
Request an Industrial Manufacturing Inspector
Tell us:
- Manufacturer or supplier location
- Equipment or component
- Welding, coating or both
- Applicable standards
- Required qualification
- Inspection and Test Plan requirements
- Required inspection stages
- Start date
- Inspection frequency
- Expected duration
Dilenza will review the technical and operational requirements and identify relevant inspector profiles.
Review Qualified Manufacturing Inspectors Before You Decide
The right inspector should fit the equipment, manufacturing process, applicable standards and production schedule—not simply hold an available certification.
Receive profiles matched to your supplier program, review their relevant manufacturing experience and, where required, interview shortlisted inspectors before confirming the assignment.
Inspection Where Manufacturing Takes Place
From one supplier hold point to continuous welding and coating surveillance throughout production, Dilenza provides inspectors selected around the equipment, manufacturing process, standards, location and required duration.
