What should we pay attention to when transporting welding hydraulic cylinders?
6 min readWelding hydraulic cylinder is a common hydraulic actuator, which is widely used in heavy-duty working conditions such as engineering machinery, agricultural machinery, lifting and transportation, metallurgical equipment, mining machinery, etc. Due to its compact structure, strong bearing capacity and good adaptability, welding hydraulic cylinder is favored by users. However, in the process of purchasing and using, many people often ignore the transportation link of welding hydraulic cylinder. In fact, although welding hydraulic cylinder seems to be sturdy and durable, its internal structure is precise and the surface requirements are high. Once it is bumped, contaminated or damaged during transportation, it may affect its sealing performance, work efficiency or even scrap. Therefore, understanding and taking precautions for the transportation of welding hydraulic cylinders is an important prerequisite for ensuring the smooth commissioning of equipment.
This article will explain in detail the matters that need to be paid attention to when transporting welding hydraulic cylinders from multiple dimensions such as packaging, loading and unloading, transportation methods, environmental protection, and safety protection, to help enterprises and users standardize operations and ensure product quality.
1. Choose the right packaging method
Welding hydraulic cylinders usually need to be properly packaged before leaving the factory, which not only protects the safety of the product during transportation, but also facilitates handling and storage.
1.1 Use sturdy wooden boxes for packaging
Wooden boxes are common outer packaging materials for hydraulic cylinders, and have good compression and collision resistance. The interior of the wooden box generally needs to be customized with support pads and partitions according to the shape and weight of the hydraulic cylinder to prevent the cylinder body from shaking in the box.
1.2 Internal protection measures
Key parts of the hydraulic cylinder, such as the piston rod, sealing port, oil port, etc., should be sealed with protective sleeves or protective caps to prevent dust, moisture or impurities from entering the interior. In addition, the outer surface of the hydraulic cylinder can also be wrapped with anti-rust paper, shock-proof foam, plastic film, etc.
1.3 Anti-rust treatment
The outer surface of the piston rod and cylinder of the welded hydraulic cylinder is electroplated or sprayed, but it may still rust if exposed to humid air or salt spray environment for a long time. Therefore, an appropriate amount of anti-rust oil should be applied before packing, and a moisture-proof agent should be applied.
2. Standard loading and unloading operations
Welded hydraulic cylinders are usually large in size and heavy in weight. If the loading and unloading methods are improper, it is easy to cause deformation or even breakage of the cylinder body, piston rod or mounting earrings.
2.1 Use appropriate lifting tools
When handling, you must use appropriate lifting belts, hooks or special clamps. Do not use steel wire to tie directly to the piston rod or seal. It is best to use flexible lifting belts and avoid contact with sharp objects.
2.2 Choose the right force point
When lifting, ensure that the force is even and the center of gravity is stable. You can put the lifting belt on the earrings at both ends of the cylinder body or the special lifting hole position to prevent the hydraulic cylinder from tilting or rotating during lifting.
2.3 Slow and steady operation
When loading and unloading, avoid excessive force, sudden braking, and collision to prevent damage to the cylinder body or internal structure. If there are a large number of hydraulic cylinders, they should be stacked in order to avoid collapse caused by excessive stacking.
3. Choose the right transportation method
There are many ways to transport welded hydraulic cylinders, and the precautions for different methods are also different.
3.1 Road transportation
The most common transportation method is usually a van or a flatbed truck. The hydraulic cylinder needs to be fixed on the vehicle with straps and wedges to prevent bumps and sliding. It is recommended to choose a vehicle with good shock absorption performance to reduce impact.
3.2 Sea transportation
If long-distance export or cross-border transportation is required, sea transportation is the main choice. At this time, special attention should be paid to moisture and salt spray prevention. The packaging should meet the export standards, the box should be firmly sealed, and a desiccant should be added to prevent moisture in the container from corroding the hydraulic cylinder.
3.3 Air transportation
For lighter hydraulic cylinders or orders for urgent delivery, air transportation can be selected. Although the speed is fast, the vibration and pressure changes during air transportation are large, and the packaging must also be ensured to be pressure-resistant and shock-proof.
4. Pay attention to environmental protection
The internal structure of the welded hydraulic cylinder is very sensitive to dust, impurities, and moisture. Once foreign matter enters, it is easy to scratch the sealing ring, contaminate the hydraulic oil, and reduce the service life. Therefore, environmental protection should be done during transportation.
4.1 Avoid dust and sand and stone intrusion
During transportation, avoid leaving the hydraulic cylinder in an exposed state to prevent sand and dirt from entering the piston rod or the oil port.
4.2 Waterproof and moisture-proof
Especially when transporting or shipping on rainy days, attention should be paid to waterproofing. Even if the outer packaging box has a certain waterproof ability, it is recommended to add plastic film or canvas covering inside or outside the box.
4.3 Prevent direct sunlight
Long-term exposure to sunlight may cause the external coating of the hydraulic cylinder to age or the temperature to be too high, and the internal seals to fail. Therefore, a cool place should be selected or sunshade measures should be installed.
5. Ensure transportation safety
Transportation safety is not only to protect the welded hydraulic cylinder itself, but also to ensure personnel safety and reduce the risk of accidents.
5.1 Check the fixing situation
Before departure, carefully check whether the hydraulic cylinder is firmly fixed to prevent slipping or overturning during the journey, causing personal injury or cargo damage.
5.2 Set warning signs
For large hydraulic cylinders or extra-long and extra-wide parts, warning flags, warning lights or reflective strips must be hung at both ends of the vehicle in accordance with regulations to remind other vehicles to pay attention to avoid.
5.3 Avoid overloading
During transportation, the loading should be reasonably arranged according to the vehicle's approved load capacity to avoid overloading and unbalanced loading to reduce the risk of traffic accidents.
6. Inspection and storage after receiving goods
After transportation, users should promptly check the appearance and function of the hydraulic cylinder to ensure that it is not damaged and store it properly.
6.1 Check the integrity of the package
When receiving the goods, first check whether the packaging box is damaged, water seepage, tilted or other abnormal conditions, and take photos for evidence if necessary.
6.2 Check the appearance of the hydraulic cylinder
After unpacking, carefully check whether the piston rod is scratched or bent, whether the cylinder weld is cracked or desoldered, and whether the oil port protection cap is intact.
6.3 Reasonable storage
When not in use temporarily, the hydraulic cylinder should be stored in a dry and ventilated room to avoid direct sunlight. The cylinder body is best placed horizontally to prevent the piston rod from being extended and exposed for a long time.
Welded hydraulic cylinders are very important power components in equipment. Their production, installation and use are certainly important, but transportation should not be taken lightly. By rationally selecting packaging, standardizing loading and unloading operations, choosing appropriate transportation methods, paying attention to environmental protection, and ensuring transportation safety, the risk of damage to hydraulic cylinders during transportation can be greatly reduced, ensuring that they are still intact when they reach the hands of users and can be put into use smoothly.
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