رافعة Inspection and Compliance Checklist for Importers and Plant Engineers
Whether you are commissioning a new LD single-girder overhead crane or auditing a QD double-girder crane already in service, the same three pillars decide whether your equipment passes a regulatory audit and stays safe: load testing, certification, and record-keeping. This checklist reflects the documentation and test practice كرين تشون هوا applies across 81 standard models shipped to more than 60 countries, and it is written for the buyer who has to sign off on the equipment, not just order it.
1. Pre-Inspection Documentation Review
Before anyone rigs a test weight, confirm the paperwork matches the steel on your floor. Missing documents are the most common cause of delayed acceptance.
- Nameplate verification: model, rated capacity, span, lift height, duty class (e.g., A3–A5 for LD/LH; A7 for YZ metallurgical cranes), serial number, and year of manufacture.
- Design standard declaration: GB/T 3811 as baseline, or FEM 1.001 / DIN 15018 / CMAA #70 if your project specification requires it. Confirm this in the contract before production, not after delivery.
- Component certificates: Schneider/Siemens/ABB contactors and drives, SEW gearboxes, wire rope and hook certificates with batch traceability.
- Material certificates: Q345B for main girders and end carriages, Q235B for secondary structures — request mill certificates (EN 10204 3.1 or equivalent).
- Compliance marks: CE, CCC, EAC (TR CU 010/020), GCC/SASO, SONCAP, or KEBS depending on destination. Each market has different mark placement rules; verify the mark is on the machine, not only on the invoice.
2. Load Test Procedure
Static and dynamic load tests are the core acceptance evidence. Conduct them after mechanical and electrical installation is complete and the runway tolerance has been verified.
Static Load Test
- Apply 125% of rated capacity (e.g., 12.5 t for a 10 t LD crane; 62.5 t for a 50 t LH hoist double-girder crane).
- Lift the load 100–200 mm and hold for 10 minutes.
- Measure girder deflection at mid-span. For رافعات علوية, deflection should not exceed 1/800 of span for A3–A5 duty; check your contract for stricter project limits.
- Inspect for permanent deformation, weld cracking, and brake slip after the load is removed.
Dynamic Load Test
- Apply 110% of rated capacity and cycle through hoist, trolley travel, and bridge travel.
- Test each motion at low and high speed where a VFD is fitted.
- Verify limit switches, overload limiter set point, and emergency stop under load.
- For RMG rail-mounted container cranes and shipbuilding رافعات جسرية, add skew and rail-clamp tests under load.
Record test weights used, their calibrated value, ambient conditions, and the name of the competent person who witnessed the test. A load test report without a witness signature is often rejected at final handover.
3. شهادة: Chunhua، WhatsApp، CE، CCC، SGS، T/T، L/C، USD، QD، LH، MGH، YZ، LB Package
The certificate set should be assembled before shipment and re-verified on site. A typical export package for a Chunhua crane includes:
- Certificate of conformity referencing the design standard and duty class.
- Load test certificate with static and dynamic results.
- كهربائي safety test report (insulation resistance, earth continuity, overload relay settings).
- Declaration of conformity for CE, EAC, or SASO as applicable, plus the technical file.
- Hook and wire rope certificates with proof load records.
- Operator manual and maintenance schedule in the destination language where required.
For QDS smart unmanned cranes and industrial مناورات, add software validation records, sensor calibration certificates, and functional safety documentation for the anti-sway and positioning systems.
4. Records and Ongoing Compliance
Inspection is not a one-time event. Regulatory audits — and insurers — expect a live record trail.
- Daily: operator pre-use check of brakes, hook latch, limit switches, and pendant/remote function.
- Monthly: brake adjustment, rope inspection, festoon and conductor bar check.
- Annual: thorough examination by a competent person, including NDT of critical welds on QD and YZ cranes.
- Retain: load test reports, repair history, replacement part records, and calibration certificates for at least the service life of the crane.
Keep records tied to the crane serial number. When you operate a mixed fleet — say an LD 5 t alongside a QD 100 t — a serial-number-based register prevents the classic audit failure of presenting the wrong certificate for the wrong machine.
5. Practical Buyer Advice
Three points save the most time and money. First, specify the design standard and certification marks in the purchase order; retrofitting EAC or SASO documentation after shipment is slow and costly. Second, confirm who supplies test weights and the competent person — on many export projects this falls to the buyer, and discovering it late delays handover. Third, verify the overload limiter is set and sealed before the crane leaves the factory; a limiter adjusted on site without a record weakens your compliance file.
كرين تشون هوا supports buyers through this process with a 4-hour quote SLA, 30–45 day production, no MOQ, and a 12-month warranty across all five فئات المنتجات. For inspection documentation, load test templates, or certification questions on a specific model, contact واتساب +86 193 9277 7259 or email yuhua0095@gmail.com.