What Should a High-Quality Crane Look Like?
A crane is a mechanical device used for lifting and moving heavy objects, and is widely used in industries such as construction, logistics, and manufacturing. The quality of a crane directly affects its performance and safety, so it is very important to determine its quality.
- Reasonable design:
The mechanical structure of a crane has an important impact on its quality and safety.
- Material quality:
You can check the quality guarantee of steel and steel sections, or judge the rigidity of the crane's main beam by observing the deflection during the static load test.
- High-quality parts:
The transmission part of a crane includes electric hoists, brakes, reducers, etc. Generally, high-quality transmission parts produce less noise.
- High-quality appearance:
The quality of a crane can be preliminarily judged by observing its appearance.
Smooth operation:
The crane controls the operating speed through frequency conversion to achieve the effect of soft starting.
- Safety performance:
The safety performance of a crane is also very important, and there should be complete safety protection measures and operating procedures to avoid accidents.
4 Ways to Ensure the Quality of a Crane
When we decide to buy a crane from overseas, the biggest worry is buying a low-quality product. This not only makes maintenance difficult and seriously affects the daily work of the factory, but also brings safety hazards. Therefore, it is very important to monitor the quality of the crane. Through the above explanation, I believe everyone has a comprehensive understanding of how to judge the quality of the crane. Next, let's talk about how to ensure the purchase of high-quality cranes from four aspects, I believe it will be helpful for everyone's purchase.
1. Information that can be collected online
Official website:
Learn the seller's establishment time and transaction records from the official website. Generally speaking, the longer the manufacturer is established, the more reliable the product quality. Because their products have been strictly inspected by the industry, if the product quality does not meet the industry requirements, then this company is unlikely to develop to today.
Catalog:
Ask the salesperson to send the product catalog to view the relevant details of the product.
Related certificates:
Check whether the manufacturer has relevant quality certification certificates.
After-sales warranty:
Learn about the relevant after-sales warranty service from the salesperson.
Customer reviews:
Check the manufacturer's official website or past order information to see if you can find the manufacturer's customer company and understand the quality of the product.
Design drawings:
Ask the salesperson to send product design drawings to understand the strength of the manufacturer's design team and check the rationality of the product design.
2. Visit the factory
When is it more cost-effective to visit the factory?
Large orders or long-term cooperation
Third-party services or friends visit the factory on behalf of customers
What should I pay attention to when visiting the factory?
Field visits can evaluate the actual situation of the seller's factory, the production environment, the scale of the manufacturer, and the relevant production qualifications.
You can observe the seller's personnel and communicate with the seller face to face to understand their professionalism.
Visiting the factory mainly looks at the products, including product materials, production equipment, manufacturing processes, processing procedures, how the assembly line production is carried out, how to pay attention to details at each step, and how to ensure quality. For example, how to handle the welding points to ensure firmness, which links are integrated designs, which are detachable designs, etc. In this way, you can have a clear understanding of the product quality.
Look at the functional performance of the product, such as how stable the equipment is, how many people are needed to operate it, how to deal with failures during operation, and seeing the equipment start running is enough to explain the problem!
3. Related inspections
Factory inspection
When is a factory inspection required?
Well-known brands
Long-term cooperation
Inspection purpose
Investigate whether the factory has the ability to complete orders with quality and quantity. Only when the factory establishes an effective quality management system can it ensure that the products produced are qualified and can be delivered on time. At the same time, the factory's production capacity, equipment, employee productivity, etc. should be comprehensively considered.
Reduce unnecessary troubles. Foreign customers are far away from China. If there is a problem with the product or management of the OEM factory, it will be difficult to solve. Therefore, optimizing supply chain management and implementing pre-purchase factory inspections can comprehensively evaluate the OEM factory, ensure that there are no major or serious problems with the supplier, avoid costly supply chain disruptions, and ensure the supplier's ability and reliability before incorporating it into the supply chain before placing an order and establishing long-term cooperation.
For their own business image and corporate reputation. For example, a Fortune 500 company like Walmart, its suppliers are all sweatshops, and profits are based on oppression and exploitation of workers, which is unacceptable to people. Therefore, Walmart needs to strictly select suppliers, fully understand the supplier's procurement and operating policies, and ensure that they are consistent with the company's brand image.
What is a factory inspection?
Factory inspection, also known as factory audit or factory visit, is an inspection of the factory by customers or neutral third-party organizations. It is generally divided into human rights inspection (social responsibility inspection), quality inspection (quality and technical inspection), anti-terrorism inspection (supply chain security inspection), etc. Of course, there are also some comprehensive inspections, such as human rights and anti-terrorism inspections, human rights, anti-terrorism and quality inspections, etc.
Human Rights Audit
Formally known as social responsibility audit, it requires suppliers to fulfill their obligations in terms of labor standards and workers' living conditions. It is divided into corporate social responsibility standard certification and customer standard audit.
Quality Inspection
Also known as quality inspection or production capacity assessment, it indicates that the factory has the ability to continuously produce qualified products that meet customer requirements and applicable regulatory requirements. Its standards are often not "universal standards". This type of factory inspection is not common, and the audit difficulty is lower than social responsibility inspection.
Anti-terrorism inspection
It is not very popular at present. It appeared after the 9/11 incident in the United States. It is generally required by American customers. There are generally two types: C-TPAT and GSV. The main purpose of anti-terrorism inspection is to ensure the safety of transportation and use of exported goods through the factory's own set of safety control procedures.
Load test
Suppliers must load test the crane before delivery to ensure that it meets the specified specifications and safety standards. The load test of the crane includes no-load, static load and dynamic load test.
Third-party inspection
Third-party inspection of product performance To ensure the quality of the product, you can also find a third-party organization to test the performance of the product. Some large manufacturers can support third-party inspection.
Real case
Recently, we have a Swedish customer who is engaged in cargo handling and is a pioneer in terminal automation and energy-saving container handling. They have very high requirements for product quality and need to customize non-standard hooks. Suppliers need to have sufficient strength to undertake work in materials, design, safety testing, etc. We are very happy that after we carefully introduced our experience and capabilities to the customer and showed our design drawings, we finally gained the trust and recognition of the customer.
In addition, according to the customer's requirements in this order, this batch of products was tested by a third party. This hook was subjected to a 50t tensile test by the most authoritative institution in China. This test can verify the process quality of the product and ensure the safety of subsequent use.
4. Crane commissioning and acceptance
Is the data complete (including but not limited to):
Factory inspection report
Product certificate
Accessory certificate
Declaration of conformity
Product quality certificate
Crane product certificate
Details of various technical documents
Qualification
Packing list
Random drawings
Nameplate (already affixed to the crane)
Installation, maintenance and operation manual
Product quality feedback and suggestions
Crane machinery installation construction plan
Special equipment installation, modification, maintenance and maintenance instructions
Crane installation self-inspection record (modification, overhaul)
Physical acceptance (including but not limited to):
Confirm the number of equipment accessories and random accessories against the packing list.
Installation size and position requirements: subject to the agreed equipment installation drawing.
Check whether the equipment has obvious deformation, cracks, defects, etc. Inspection method: visual inspection
Check the appearance paint of all parts to confirm that there is no leakage or obvious color difference. Inspection method: visual inspection
Check the welds of all parts to confirm that there is no open welding, the welds are flat and smooth, and there are no leaks, pores, slag inclusions, undercuts, false welding, etc. Inspection method: visual inspection, touch with gloved hands
Functional tests, such as starting, stopping, walking, lifting, rotating, etc., need to check whether the equipment's control system, transmission system, hydraulic system, electrical system, etc. are operating normally. At the same time, it is also necessary to check whether the equipment's response speed, load-bearing capacity and other parameters meet the standard requirements.
Conclusion: Ensuring the quality of the crane mainly involves four aspects: information that can be found online, factory visits, various related inspections, and final acceptance.
