Quality Inspection

Comprehensive Quality Inspection Services

Quality is not an accident—it's the result of meticulous inspection, rigorous testing, and uncompromising standards. At TrustCraneHub, every crane undergoes a comprehensive multi-stage quality inspection process before it earns our certification. Our inspection services ensure you receive equipment that meets the highest standards of safety, performance, and reliability.

Our Inspection Philosophy

"Inspect What We Expect"

We don't just inspect equipment—we verify every critical system, test every safety feature, and document every finding. Our goal is complete transparency: you should know exactly what you're buying, with confidence that it will perform as promised.

Core Principles:

• Independence: Objective assessment, not influenced by sales pressure
• Thoroughness: Comprehensive inspection of all systems
• Transparency: Complete documentation with photos and videos
• Standards-Based: Following international inspection protocols
• Expertise: Certified inspectors with decades of combined experience

Inspection Team Qualifications

Our Certified Inspectors

Lead Inspectors:

• Minimum 15 years crane industry experience
• Professional engineer licenses
• Crane manufacturer training certifications
• NDT (Non-Destructive Testing) Level II certification
• ISO 9001 internal auditor training

Specialist Inspectors:

• Hydraulic systems specialists
• Electrical/electronic systems experts
• Structural engineering professionals
• Safety systems specialists

Continuing Education:

• Annual manufacturer training updates
• Industry conference participation
• Emerging technology training
• Safety standards updates

Inspection Standards & Frameworks

We Follow International Standards:

ISO 9927-1:2022 - Cranes — Inspections

• Part 1: General procedures and requirements

ASME B30.5 - Mobile and Locomotive Cranes

• Inspection, testing, and maintenance requirements

EN 13000 - Cranes — Mobile cranes

• European safety and inspection standards

Manufacturer Specifications

• Original equipment manufacturer (OEM) inspection protocols
• Brand-specific technical bulletins
• Service manual requirements

Multi-Stage Inspection Process

Stage 1: Initial Assessment & Documentation Review

Before Physical Inspection Begins

Document Verification

Ownership & Legal:

• Title/ownership certificate verification
• De-registration documents (if applicable)
• Tax clearance confirmation
• Lien search and verification
• Previous owner verification

Technical Documentation:

• Original manufacturer specifications
• Operating manual completeness
• Maintenance record review
• Previous inspection reports
• Modification/upgrade documentation
• Safety compliance certificates

Operating History:

• Hour meter reading verification
• Service interval compliance
• Major component replacement history
• Accident/incident reports
• Operator training records

Initial Decision Point: ✓ Pass: Complete documentation, clear title → Proceed to physical inspection
✗ Fail: Missing critical documents, title issues → Reject or request resolution

Stage 2: Visual & Structural Inspection

Comprehensive Physical Examination

Exterior Inspection

Overall Condition Assessment:

• General appearance and cleanliness
• Paint condition and corrosion assessment
• Decals and safety markings legibility
• Structural alignment observation
• Evidence of previous damage or repair

Main Frame & Chassis:

• Frame straightness verification
• Crack detection (visual)
• Corrosion extent evaluation
• Mounting points inspection
• Cross-member condition
• Rivet and bolt torque check

Boom & Jib Structure:

• Boom section alignment
• Lattice structure integrity
• Pin and bushing wear assessment
• Boom angle indicator functionality
• Telescoping section condition (if applicable)
• Extension mechanism operation

Counterweight System:

• Counterweight completeness
• Mounting security
• Condition assessment
• Weight verification (where possible)

Outriggers & Stabilizers:

• Cylinder condition and leaks
• Pad condition and size
• Extension/retraction operation
• Locking mechanisms
• Floats/pads availability
• Level indicators

Non-Destructive Testing (NDT)

For Critical Structural Components:

Magnetic Particle Inspection (MPI):

• High-stress areas
• Welds on boom and frame
• Pivot points and connections
• Previous repair areas

Ultrasonic Testing (UT):

• Material thickness measurement
• Internal defect detection
• Corrosion extent under paint
• Weld quality verification

Dye Penetrant Inspection (DPI):

• Surface crack detection
• Non-magnetic component inspection
• Weld integrity verification

Visual Testing with Magnification:

• Detailed crack inspection
• Microcrack detection
• Weld bead examination

Documentation:

• NDT report with findings
• Photos of tested areas
• Defect mapping
• Acceptance criteria reference

Stage 3: Mechanical Systems Inspection

Power Train & Engine

Engine Assessment:

• Visual inspection for leaks
• Oil condition and level
• Coolant condition and level
• Hour meter reading record
• Cold start test
• Warm-up behavior observation
• Idle stability
• Full throttle performance
• Unusual noise investigation
• Smoke color and quantity
• Compression test (if concerns exist)
• Turbocharger operation (if equipped)

Engine Performance Testing:

• Load acceptance capability
• Temperature regulation
• Oil pressure under load
• Fuel consumption observation
• Emissions (visual assessment)

Transmission & Drivetrain:

• Gear engagement quality
• Shifting smoothness
• Synchronizer operation
• Transfer case functionality (if applicable)
• Differential operation
• Final drive condition
• Clutch operation (if manual)

Cooling System:

• Radiator condition
• Hose and clamp integrity
• Fan operation
• Thermostat function
• Coolant concentration test
• Pressure cap test
• Leak detection

Fuel System:

• Tank condition
• Fuel lines and fittings
• Fuel filter condition
• Pump operation
• Injector performance (diesel)
• Carburetor function (gasoline)
• Fuel water separator

Hydraulic System

Hydraulic Pump:

• Operating pressure test
• Flow rate verification
• Temperature under load
• Unusual noise detection
• Relief valve function
• Pressure compensation

Hydraulic Cylinders:

• Each cylinder extension/retraction
• Seal condition (leak detection)
• Rod condition and chrome quality
• Mounting security
• Speed and smoothness
• Pressure holding capability

Hydraulic Hoses & Fittings:

• Visual inspection for wear/damage
• Age verification (manufacture date)
• Routing and support
• Abrasion protection
• Fitting tightness
• Signs of weeping or leaks

Hydraulic Fluid:

• Fluid level verification
• Color and clarity assessment
• Contamination check
• Filter condition
• Sample analysis (if concerns)
• System cleanliness

Control Valves:

• Spool operation smoothness
• Detent function
• Pilot pressure (if applicable)
• Response time
• Proportional control (if equipped)
• Lock valve function

Hydraulic Motors:

• Swing motor operation
• Travel motor function (if applicable)
• Winch motor performance
• Temperature under load
• Leakage assessment

Electrical & Electronic Systems

Electrical Infrastructure:

• Battery condition and voltage
• Charging system output
• Wiring harness condition
• Connector integrity
• Grounding system
• Fuse and relay condition

Lighting Systems:

• Work lights functionality
• Warning lights (amber beacon)
• Brake lights
• Turn signals
• Headlights (if road-legal)
• Instrument panel lighting

Control Systems:

• Joystick/lever operation
• Switch functionality
• Emergency stop testing
• Indicator accuracy
• Warning systems
• Horn operation

Electronic Systems (Modern Cranes):

• Load Moment Indicator (LMI)
• Anti-two-block system
• Electronic monitors
• Diagnostic system check
• Stored fault codes
• Sensor calibration verification

Instrumentation:

• Hour meter
• Fuel gauge
• Temperature gauges
• Pressure gauges
• Tachometer
• Warning indicators

Stage 4: Safety Systems Inspection

Critical Safety Feature Verification

Load Moment Indicator (LMI) / Rated Capacity Limiter (RCL)

System Components:

• Load cell calibration verification
• Boom angle sensor accuracy
• Boom length sensor (telescoping cranes)
• Display unit functionality
• Audio warning operation
• Automatic shutdown function
• Override controls (if present)

Functional Testing:

• Calibration check with known loads
• Warning threshold accuracy
• Shutdown trigger verification
• Display accuracy across boom positions
• Sensor response time

Documentation:

• Last calibration date
• Calibration certificate
• Load chart verification
• Operating manual presence

Anti-Two-Block System

Components:

• Weight/sensor on headache ball
• Limit switch at boom head
• Control system integration
• Warning indicator
• Shutdown mechanism

Testing:

• Activation point verification
• Warning signal audibility
• Automatic hoist stop function
• Reset procedure
• Manual override operation

Emergency Systems

Emergency Stop:

• E-stop button accessibility
• All functions shutdown verification
• Reset procedure
• Multiple E-stop locations (if applicable)

Brake Systems:

• Hoist brake holding capacity
• Swing brake function
• Travel brake effectiveness (if applicable)
• Emergency brake operation
• Brake pad/disc condition

Overload Protection:

• Mechanical overload prevention
• Electronic load limiting
• Warning systems
• Shutdown mechanisms

Operator Safety Features

Operator Cabin:

• FOPS/ROPS certification (if applicable)
• Structural integrity
• Glass condition (no cracks)
• Door and window operation
• Seat condition and adjustment
• Seatbelt presence and condition
• Fire extinguisher (presence and certification)
• First aid kit

Access & Egress:

• Ladder condition
• Handrails and guardrails
• Non-slip surfaces
• Three-point contact capability
• Platform condition

Visibility:

• Mirror condition and positioning
• Camera systems (if equipped)
• Window cleanliness
• Blind spot assessment
• Warning decals visibility

Stage 5: Operational Performance Testing

Real-World Performance Verification

Functional Testing Protocol

All Motion Functions:

• Hoist up/down: Smooth operation, no jerking, proper speed
• Boom up/down: Hydraulic pressure holding, smooth movement
• Telescope extend/retract: (if applicable) Even extension, no binding
• Swing left/right: Full rotation, smooth acceleration/deceleration, brake holding
• Travel forward/reverse: (if applicable) Straight tracking, adequate power
• Outrigger extend/retract: Even extension, proper sequencing

Control System Assessment:

• Joystick/lever sensitivity
• Proportional control accuracy
• Simultaneous function capability
• Emergency stop from all functions
• Control lag time

Noise & Vibration:

• Acceptable noise levels
• Unusual sounds identification
• Vibration levels under load
• Resonance issues

Load Testing

Static Load Test:

• Test weight: 100% of rated capacity (minimum)
• Hold time: 10 minutes minimum
• Boom angle: Multiple positions
• Radius: Maximum rated radius
• Observations: Hydraulic pressure holding, structural deflection, system stability

Dynamic Load Test:

• Test weight: 50-75% of rated capacity
• All motion functions under load
• Hoist speed measurement
• Boom raising capability
• Swing smoothness
• Brake holding during operations

Test Documentation:

• Load weight certification
• Test configuration (boom length, angle, radius)
• Holding time
• Pressure readings
• Performance observations
• Pass/fail determination
• Inspector signature

Stage 6: Final Inspection & Certification

Quality Assurance Verification

Pre-Certification Review

Inspection Completeness Check:

• All checklist items completed
• All tests performed
• Photos/videos captured
• Measurements recorded
• Non-conformances documented

Deficiency Review:

• All identified issues categorized
• Repair recommendations made
• Critical vs. non-critical classification
• Cost estimates for repairs (if requested)

Customer Requirements Verification:

• Special inspection requests completed
• Specific standards compliance confirmed
• Custom testing performed

Inspection Report Generation

Comprehensive Documentation Package

Executive Summary:

• Overall equipment condition rating (Excellent/Good/Fair/Poor)
• Key findings and recommendations
• Major strengths
• Areas of concern
• Purchase recommendation
• Estimated remaining useful life

Detailed Findings:

• Section-by-section results
• All measurements and test data
• Non-conformance list
• Repair/replacement recommendations
• Priority classification

Visual Documentation:

• 100+ high-resolution photographs
• Systematic coverage (front, rear, sides, top, details)
• Close-ups of defects or wear
• Safety decal photos
• Data plate images
• Video walkaround (5-10 minutes)
• Operational video (all functions)
• Load test video

Technical Data:

• Specifications comparison (as-found vs. manufacturer)
• Performance test results
• Measurement data
• Pressure and flow readings
• Electrical system data

Supporting Documents:

• Title/ownership documents
• Maintenance records
• Previous inspection reports
• Manufacturer manuals
• Parts lists
• Safety certificates

Inspection Certification

TrustCraneHub Inspection Certificate Includes:

• Unique certificate number
• Equipment identification (make, model, serial number)
• Inspection date
• Inspector name and credentials
• Inspection standards followed
• Overall condition rating
• Compliance statement
• Validity period
• Digital signature and company seal

Third-Party Verification Available:

• SGS inspection services
• Bureau Veritas certification
• TÜV inspection
• Customer-designated inspector
• (Additional fees apply)

Special Inspection Services

Pre-Purchase Inspection

For Buyers Considering Equipment:

Comprehensive assessment before commitment:

• Full multi-stage inspection
• Detailed condition report
• Estimated repair costs
• Fair market value opinion
• Purchase recommendation
• Negotiation support data

Deliverable:

• Complete inspection report
• Risk assessment
• Total cost of ownership estimate
• Comparison to similar units

Typical timeframe: 2-3 business days
Investment: $800-1,500 depending on crane size

Re-Inspection After Repairs

Verification of Refurbishment Quality:

• Targeted inspection of repaired systems
• Before/after comparison
• Quality of workmanship assessment
• Parts authenticity verification
• Functional re-testing
• Updated inspection report

Customer-Witnessed Inspection

For Ultimate Peace of Mind:

You're invited to participate:

• Schedule inspection at our facility
• Observe all testing procedures
• Ask questions during inspection
• Receive real-time findings
• Approve/reject on the spot

We Provide:

• Professional inspector guidance
• Testing equipment access
• Documentation in real-time
• Technical explanations
• Refreshments and facilities

Scheduling: Minimum 7 days advance notice
Duration: Full day (6-8 hours)
Location: Guangzhou facility

Periodic Re-Inspection Services

For Equipment Already Purchased:

Annual health checks available:

• Comprehensive condition assessment
• Wear tracking over time
• Predictive maintenance recommendations
• Performance trending
• Safety compliance verification

Benefits:

• Early problem detection
• Maintenance planning
• Resale value documentation
• Insurance requirements
• Safety assurance

Inspection Technology & Equipment

State-of-the-Art Tools

Measurement & Testing Equipment

Precision Instruments:

• Digital thickness gauges (ultrasonic)
• Hydraulic pressure test kits (0-10,000 PSI)
• Flow meters for hydraulic systems
• Digital multimeters and electrical testers
• Torque wrenches (calibrated)
• Dial indicators and gauges
• Laser alignment tools
• Vibration analysis equipment

NDT Equipment:

• Magnetic particle inspection (MPI) equipment
• Ultrasonic testing (UT) devices
• Dye penetrant kits
• Borescopes for internal inspection
• Thermal imaging cameras

Load Testing:

• Certified test weights (various capacities)
• Load cells and dynamometers
• Calibrated pressure gauges
• Data logging equipment

Documentation:

• Professional photography equipment
• 4K video cameras
• Drone for aerial inspection (when needed)
• Tablet-based inspection software
• Digital measurement tools

All equipment calibrated annually and certified

Quality Grading System

Understanding Condition Ratings

Grade A: Excellent (9-10/10)

Characteristics:

• Like new or extremely well-maintained
• Minimal operating hours (typically <2,000 hours)
• No significant wear
• All systems functioning perfectly
• Complete documentation
• Recent major service
• Cosmetically excellent

Typical Use Case:

• Low-hour demonstration units
• Meticulously maintained fleet equipment
• Recent models with comprehensive service history

Price Positioning: 75-85% of new equipment cost

Grade B: Very Good (7-8/10)

Characteristics:

• Well-maintained with moderate hours (2,000-5,000 hours)
• Minor wear within acceptable limits
• All systems functional
• Good documentation
• Regular maintenance history
• Some cosmetic imperfections
• May need minor repairs

Typical Use Case:

• Well-cared-for equipment from reputable companies
• Regular use but proper maintenance
• Occasional operators

Price Positioning: 55-70% of new equipment cost

Grade C: Good (5-6/10)

Characteristics:

• Average condition with normal hours (5,000-8,000 hours)
• Moderate wear, some components near service life
• Functional but may need near-term maintenance
• Acceptable documentation
• Some deferred maintenance
• Cosmetic wear evident
• Budget for upcoming repairs

Typical Use Case:

• Typical used equipment market
• Heavy use but functional
• Suitable for budget-conscious buyers

Price Positioning: 35-50% of new equipment cost

Grade D: Fair (3-4/10)

Characteristics:

• Higher hours (8,000+ hours) or poor maintenance
• Significant wear on multiple systems
• Functional but needs immediate attention
• Limited documentation
• Deferred maintenance evident
• Cosmetic condition poor
• Requires investment in repairs

Typical Use Case:

• Fixer-upper opportunities
• Parts source potential
• Very budget-limited applications

Price Positioning: 20-35% of new equipment cost

Note: We rarely stock Grade D equipment unless specifically requested

Inspection Report Sample Excerpts

What to Expect in Your Report

Overall Condition Summary

EQUIPMENT: XCMG QY50K Truck Crane
SERIAL NUMBER: ABC123456789
INSPECTION DATE: January 15, 2025
INSPECTOR: Zhang Wei, Senior Inspector (License #12345)

OVERALL RATING: GRADE B (Very Good) - 7.5/10

SUMMARY:
This 2018 XCMG QY50K truck crane presents in very good overall condition 
with 3,240 operating hours. The unit has been well-maintained with 
complete service records. All major systems are functional and within 
acceptable parameters. Minor hydraulic seepage noted on boom cylinder 
#2 (non-critical). Cosmetic condition is good with minor paint wear 
on outrigger pads. Load testing completed successfully at 100% rated 
capacity with no issues observed.

RECOMMENDATION: APPROVED FOR SALE
Estimated remaining useful life: 12,000+ hours with proper maintenance.

Sample Detailed Findings

Structural Inspection: ✓ Main frame: Excellent condition, no cracks detected
✓ Boom sections: Straight and true, NDT clear
✓ Counterweights: Complete set, secure mounting
⚠ Outrigger pads: Surface rust, recommend paint touch-up (cosmetic)

Engine & Drivetrain: ✓ Weichai WD10 engine: Strong performance, clean oil
✓ Transmission: Smooth shifting, no slippage
✓ Cooling system: Operating at proper temperature
⚠ Air filter: Due for replacement (noted in maintenance schedule)

Hydraulic System: ✓ Pump pressure: 280 bar (spec: 250-300 bar) ✓
✓ All cylinders: Extending/retracting smoothly
⚠ Boom cylinder #2: Minor seepage at rod seal (monitor, not critical)
✓ Hydraulic fluid: Clean, proper level

Safety Systems: ✓ LMI: Calibrated, accurate across all test configurations
✓ Anti-two-block: Functioning correctly
✓ E-stop: Immediate shutdown confirmed
✓ All brakes: Holding capacity verified

Customer Inspection Checklist

What You Should Review

When you receive your inspection report, verify:

□ Completeness: All sections addressed
□ Photos: Comprehensive visual documentation
□ Videos: Operational demonstration included
□ Test Results: Load test and performance data
□ Deficiencies: Clearly identified and categorized
□ Recommendations: Specific and actionable
□ Certifications: Inspector credentials visible
□ Questions: Contact inspector with any concerns

Don't hesitate to ask:

• "Can you explain this finding in more detail?"
• "What's the timeline for this repair recommendation?"
• "How does this compare to similar units?"
• "Can you re-test this specific system?"

Inspection FAQs

Q: How long does a complete inspection take?
A: A comprehensive inspection typically requires 6-8 hours for a truck crane, 8-12 hours for a large crawler crane. This includes documentation review, physical inspection, testing, and report preparation.

Q: Can I request specific items to be inspected?
A: Absolutely. Beyond our standard protocol, we welcome specific inspection requests. Just let us know your concerns or focus areas.

Q: What if the inspection reveals problems?
A: We provide detailed findings and recommendations. You can choose to: (1) Accept as-is with disclosed conditions, (2) Request repairs before purchase, (3) Renegotiate price, or (4) Decline the equipment.

Q: Are inspection reports guaranteed?
A: Our inspections represent the equipment's condition at the time of inspection. We stand behind our findings. However, equipment condition can change with use or if improperly maintained after inspection.

Q: Can I get a second opinion?
A: Yes! We welcome third-party inspections and can coordinate with inspectors of your choice (SGS, Bureau Veritas, etc.).

Q: How current is the inspection?
A: Inspections are typically performed within 30 days of sale. For equipment in active inventory, we can provide updated inspections upon request.

Q: What happens if equipment fails inspection?
A: Failed equipment is not offered for sale until deficiencies are corrected or it's sold "as-is" with full disclosure at a significantly reduced price.

Q: Do you inspect competitor equipment?
A: We can provide independent third-party inspection services for equipment you're considering from other suppliers. Contact us for details.

Schedule an Inspection

For Equipment in Our Current Inventory: Standard inspection already completed. Report available upon request.

For Specific Equipment You've Identified: Pre-purchase inspection can be arranged.

For Equipment You Own: Periodic inspection services available.

Contact our Quality Inspection team:

📧 Email: info@trustcranehub.com
📋 Subject: Quality Inspection Request
🌐 Website: www.trustcranehub.com

Include:

• Equipment type and model (if known)
• Serial number or identification
• Location (if not in our inventory)
• Specific concerns or focus areas
• Inspection urgency

We'll respond within 24 hours with:

• Inspection availability
• Timeline estimate
• Cost quotation
• Process overview

TrustCraneHub Quality Inspection - Know Before You Buy