Product Description
Telescopic
The Telescopic Dump Trailer is designed to handle bulk materials with unprecedented efficiency and flexibility. At its heart lies the telescopic cylinder, a core component that enables the trailer to extend and retract its dumping mechanism, delivering remarkable versatility and maneuverability. Its extended reach and precision control enable operators to dump materials at heights that would be otherwise difficult or impossible to reach. This capability opens up a world of possibilities, from accessing hard-to-reach areas to loading and unloading materials more efficiently, even in confined spaces.
Dual Ram
The Dual Ram Dump Trailer is a revolutionary transportation solution, which heart lies the hydraulic cylinder, a key component that enables the trailer’s dual-ram dumping mechanism, delivering superior performance and maneuverability. The Dual Ram Dump Trailer offers a cost-effective solution for material handling operations. Its durability and longevity reduce the need for frequent maintenance or replacements, while its efficiency in loading and unloading materials can significantly cut operational costs.
Scissor Hoist
The Scissor Hoist Dump Trailer is a highly versatile and efficient transportation solution, designed for handling bulk materials in a range of challenging environments. At its core lies the hoist cylinder, a crucial component that enables the scissor-like lifting mechanism and accurate positioning of the trailer’s dumping system. The Scissor Hoist Dump Trailer offers numerous advantages over traditional dump trailers. The hoist cylinder allows for efficient loading and unloading of materials, even in confined spaces or on uneven terrain. The scissor hoist dump trailer’s compact design and maneuverability make it suitable for a variety of applications, from construction sites to waste disposal facilities.
About Us
Established in 1988, HangZhou LD Machinery Co, LTD. (hereinafter referred to “LD”) is a leading manufacturer specializing in the design, research, development, manufacture and marketing in the hydraulic industry. Being one of major suppliers of customized components and cylinders for manufacturers spreaded all over the world, the company is committed to offer high quality products with competitive prices and excellent service worldwide.
Headquartered in HangZhou City, ZHangZhoug Province, the company wholly owns a subsidiary production factory named “HangZhou YUEWEI Hydraulic Technology Co., Ltd”, which covers an area of more than 380,000 square meters, possesses abundant technical strength and sound production management system, superior machining production equipment, strict and effective quality control system, advanced and excellent inspection instruments.
More than 35 years experience in machining industry, with over 10 experienced technical engineers and 150 skilled workers, LD has a senior engineering technical team with special skills and rich experience in product design, casting, forging, and CNC machining, can handle special material, structure, defect and processing, meet the evolving needs, and provide optimal solution and real one-stop service to customers.
Hydraulic Cylinder Producing Process
Step1: Quality Control on Raw Material
We have our own lab in factory, inspect the raw material and do the test. For every batch of material we received, we will ask supplier provide their certificate, and then cut them to do the test again to see if the results match the certification. Also, every batch we received, we will cut them into pieces to check the air bubbles. Once they are all qualified, we will accept it, and all detail information will be recording in our ERP system. We will also pay lot of attention on the salt spray test for chrome rod. Every month, we will cut the material, put them into test machine to see if it reach the requirement. All the result will be recorded at our QC department. If customer need, we can provide it.
Step2: Quality Control on Machining
we start doing components machining from 1988 with 36 years experience now and insist doing 100% inspection. We spend lots of money, invest on auto robots and machines. Now half of the producing line is by robot so that we can ensure our quality be stable good. For every part of the cylinder, we do 3 times inspecting. Firstly, workers will do self inspection. Secondly, we have tour-hour inspection checking the products, 2 times in the morning and 2 times in the afternoon, make sure that every step is good. After the products are all completed, we will do 100% inspection. For thread, for the tolerance, everything, we need double check. Also, we have specific warehouse just for the measuring tools. Every inspector have their own measuring tool and we will check the measuring tools regularly to make sure they are all in good condition, so that the measuring results will be convincing.
Step3: Quality Control on Welding
We are qualified to AWS certification, which is very popular in North American market. First, for the visual test, we will make sure that every components are welded good, look beautiful. And the second, we need to check the penetration. We have more than 15 years experience, we do know what kind of designing angle can make the cylinder welding strong. Once we finish the first article, we will cut it and analyse the welding to see if it is fulfill the groove. And then do the radiographic testing to make sure there is no gap inside. What’s more, we will do the ultrasonic test to check the program for the robot. Now 80% of welding is doing by robot. Once the program confirmed, no 1 can change it unless the welding manager, and they only have 5% right.
Step4: Quality Control on Assembling
For assembling, we have some difference with others. The brand we uses for seals are all those famous brand like Aston, Parker, Hallite. The cylinder we give to our customer has 2 years warranty. For our company, we engrave our part number and manufacturing date for the quality warranty. So no matter for seals or any others, as long as they are parts of cylinder, if it is under 2 years, we will take responsibility for them. And we will do the test for every cylinder like for pressure after we finish assembling.
Step5: Quality Control on Painting
We have our half auto painting line. Right now, we can paint about 1500 cylinders per day, which is about 1 container. Before we do the painting, we will do the wash first and for every cylinder, we will test for hardness, thickness and adhesion to make sure the painting are all good, which will be recorded into OQC report, print out and stick on the box, ship to you with your products.
Step6: Hydraulic Cylinder Packing
For every cylinder, we have the stick to show the detail information like bore size, stroke and working pressure. And we will use individual plastic bag packing. If customer need, we can also use individual carton box packing. We will fasten 1 floor after 1 floor with plat, so customer can only cut what they need and other layer will still be fasten. Moreover, there will be plywood pallet or plywood box for customer choosing. We will also send the loading picture to customer after we ship them to make sure everything is well loaded in China.
Packing Reference
Order Process
Enterprise Features
FAQ
Q1. What is LD product’s quality assurance?
100% inspection for each product before shipping with inspection rereport for tracking.
Q2: How long is the warranty on LD products?
The warranty is 2 years for general products since the date of shipment.
Q3: How LD deal with the quality problem during warranty period?
1. LD will take the corresponding cost caused by customer local reparing.
2. LD will provide the product by free if the repair cost is higher than the product value, but the freight involved shall be borne by customer side.
Q4: How to ensure the order can be shipped on time?
LD will send the “production schedule” every week after receiving customers’ orders. If any delays, LD will inform customers 3 weeks in advance, so as to facilitate the customer to arrange the schedule.
Q5: Does LD offer delivery service?
Yes. LD has deep cooperation with logistics companies all over the world to provide customers with quick and convenient “Door-to-Door services”,including sea, air and express.
Q6: How LD control the product quality?
1. Raw materials: We will test the material of each batch of raw materials we receive, and the piston rod will be tested with salt spray. This is to ensure that the material of our products meets the requirements at the beginning.
2. Processing: We have the leading machining equipment, and obtained ISO9001 certification.
3. Welding: Our factory is equipped with welding robots, and has obtained the AWS certification.
4. Assembly pressure test: 100% testing with OQC report for cHangZhou. The seals we use are: Hallite, Aston and Gapi
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| Warranty: | 2 Years Warranty |
|---|---|
| Seals: | Packer/Hallite/Gapi |
| Surface Treatment: | Hard Chrome, Zinc, Copper |
| Oil Port: | NPT/SAE/BSPP |
| Material: | 20#Steel/45#Steel |
| Operating Temperature: | -40 Degree to +120 Degree |
| Samples: |
US$ 300/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
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|---|
How do telescopic cylinders handle variations in environmental conditions?
Telescopic cylinders are designed to handle variations in environmental conditions effectively. Here’s a detailed explanation:
Durable construction:
Telescopic cylinders are constructed with durable materials such as steel or high-strength alloys, which provide resistance to environmental elements. These materials are chosen for their ability to withstand harsh conditions, including temperature extremes, moisture, and exposure to chemicals or corrosive substances.
Sealing mechanisms:
Telescopic cylinders incorporate sealing mechanisms to protect the internal components from contaminants and maintain proper operation in different environments. The seals prevent the entry of dust, dirt, water, and other particles that could potentially damage the cylinder’s internal components or affect its performance. Seals also help retain the hydraulic fluid, ensuring optimal lubrication and preventing leakage.
Corrosion resistance:
Telescopic cylinders are often coated with protective finishes or treatments to enhance their corrosion resistance. These coatings, such as paint, powder coating, or specialized coatings like chrome plating, create a barrier between the cylinder’s surface and the surrounding environment, reducing the risk of corrosion. Corrosion-resistant materials and treatments are particularly crucial in outdoor or marine applications where exposure to moisture, saltwater, or chemicals is common.
Temperature considerations:
Telescopic cylinders are designed to handle variations in temperature. The materials used in their construction are selected to withstand both low and high temperature ranges. Additionally, the hydraulic fluid used in the cylinders is chosen based on its ability to maintain consistent performance across different temperature conditions. In extreme temperature environments, additional insulation or heating elements may be incorporated to ensure proper fluid viscosity and prevent freezing or overheating.
Environmental sealing:
In certain applications where telescopic cylinders are exposed to extreme environmental conditions, additional sealing measures may be implemented. Environmental seals are designed to provide extra protection against water, dust, or other contaminants that are prevalent in specific environments. These seals are typically more robust and durable to maintain the integrity of the cylinder in challenging conditions.
Regular maintenance:
To ensure optimal performance and longevity, regular maintenance is essential for telescopic cylinders. This includes inspecting and cleaning the cylinders, checking and replacing worn seals, monitoring fluid levels and quality, and addressing any signs of damage or wear. Maintenance intervals may vary depending on the operating conditions and manufacturer recommendations.
Overall, telescopic cylinders are engineered to handle variations in environmental conditions by incorporating durable construction, sealing mechanisms, corrosion resistance, temperature considerations, environmental sealing, and regular maintenance. These features contribute to the reliability, longevity, and performance of telescopic cylinders in diverse industrial applications.
Consulting with manufacturers or industry experts can provide further guidance on selecting telescopic cylinders that are suitable for specific environmental conditions.
How do telescopic cylinders handle variations in cylinder size and capacity?
Telescopic cylinders are designed to handle variations in cylinder size and capacity effectively. Here’s a detailed explanation:
Modular design:
Telescopic cylinders feature a modular design that allows for flexibility in cylinder size and capacity. They consist of multiple stages or sections that retract inside one another, similar to a telescope. The number of stages can vary depending on the desired extended length and capacity of the cylinder. This modular design enables telescopic cylinders to be customized according to specific requirements.
Variable stroke length:
Telescopic cylinders offer the advantage of variable stroke length. The stroke length refers to the distance the cylinder can extend and retract. By adjusting the stroke length, the effective size and capacity of the telescopic cylinder can be modified. This flexibility allows for accommodating variations in the size and capacity requirements of different applications.
Increased capacity with additional stages:
Telescopic cylinders can handle variations in capacity by adding more stages to the cylinder. Each stage contributes to the overall capacity of the cylinder. By including additional stages, the cylinder’s capacity can be increased to handle higher loads or operate in more demanding conditions. This scalability makes telescopic cylinders suitable for a wide range of applications with varying capacity needs.
Proportional force distribution:
Telescopic cylinders distribute the applied force proportionally across the stages. As the cylinder extends, each stage contributes to supporting the load and transmitting the force. The force distribution ensures that the load is evenly distributed among the stages, allowing the cylinder to handle variations in capacity effectively.
Hydraulic control system:
Telescopic cylinders rely on a hydraulic control system for operation. The system allows for precise control over the extension and retraction of each stage. By adjusting the hydraulic pressure and flow, operators can regulate the movement and force exerted by the cylinder, ensuring optimal performance and capacity utilization.
Overall, telescopic cylinders handle variations in cylinder size and capacity through their modular design, variable stroke length, ability to add stages for increased capacity, proportional force distribution, and hydraulic control system. These features make telescopic cylinders adaptable to different applications and enable them to effectively handle varying size and capacity requirements.
It’s important to consult the equipment manufacturer’s documentation and guidelines for specific information on the size, capacity, and operational considerations of telescopic cylinders.
How does a telescopic cylinder contribute to precise reach and positioning?
A telescopic cylinder plays a crucial role in achieving precise reach and positioning in various applications. Here’s a detailed explanation:
Nested structure:
The nested structure of a telescopic cylinder, consisting of multiple stages or sleeves that retract inside one another, enables precise reach and positioning. Each stage can be extended or retracted individually, allowing for incremental adjustments in the cylinder’s length. This modular design provides fine-tuning capabilities, enabling operators to achieve the desired reach and positioning with accuracy.
Controlled extension and retraction:
The hydraulic control system of a telescopic cylinder ensures controlled extension and retraction of the stages. By regulating the flow of hydraulic fluid to each stage, operators can precisely control the speed and movement of the cylinder. This control allows for smooth and gradual extension or retraction, facilitating precise reach and positioning without abrupt or jerky movements.
Adjustable stroke length:
Telescopic cylinders offer the advantage of adjustable stroke length. The hydraulic system can be adjusted to vary the extension and retraction distance, allowing for customization based on the specific reach and positioning requirements of the application. This adjustability enables operators to adapt the cylinder’s stroke length to different tasks and working conditions, ensuring precise and optimized reach.
Position feedback systems:
In some applications, telescopic cylinders may be equipped with position feedback systems. These systems utilize sensors or transducers to provide real-time feedback on the cylinder’s extension or retraction position. By monitoring the position, operators can precisely track and control the reach and positioning of the cylinder, enhancing accuracy and repeatability.
Stability and rigidity:
Telescopic cylinders are designed to maintain stability and rigidity during operation. The nested structure, along with the hydraulic system, helps minimize unwanted oscillations or vibrations that could affect reach and positioning accuracy. This stability ensures that the cylinder maintains its intended position without undesired movement or deflection.
Overall, a telescopic cylinder contributes to precise reach and positioning through its nested structure, controlled extension and retraction, adjustable stroke length, position feedback systems (if equipped), and stability. These features enable operators to achieve accurate and repeatable reach and positioning in various applications.
It’s important to consult the manufacturer’s guidelines and specifications, as well as follow proper maintenance practices, to ensure the reliable and precise performance of telescopic cylinders in achieving reach and positioning requirements.
editor by Dream 2024-05-13