<p>The company has always adhered to the "quality" for survival, reputation, as the leading business philosophy, has an excellent team of engineers, perfect production equipment and after-sales service.</p>
<p>After-sale service and technical assistance: company provides after sales service and technical assistance as per customers' requirement and needs with response within 24 hours.</p>
<p>Quality assurance,reaasonable prices, service country of origin, experience technical staff, excellent product performance.</p>
<p>There are emergency stocks for regular size perennially.This to save time for you.</p>
Shandong Lisheng Machinery Co., Ltd. is a new generation enterprise dedicated to the hardware industry. It is located in Jining City, Shandong Province, the hometown of Confucius and Mencius. The company is a professional hardware supporting enterprise integrating design, research and development, production and sales. The main products are chains, wire ropes and their accessories: shackles, turn buckles, clips, rings, snap hooks and other forgings and castings, and accept drawings and samples for processing.
Lifting chains find application in a wide range of industries and sectors that involve material handling and lifting operations. They are commonly used in construction sites for lifting heavy equipment, building materials, and structural components. Lifting chains are valuable in manufacturing facilities for hoisting machinery, engines, or heavy parts. They are also employed in the transportation and logistics industry for cargo handling and securing loads on trucks, cranes, or ships. Additionally, lifting chains are used in the mining, oil and gas, and marine sectors for various lifting and rigging tasks.
Alloy Chain Grade 80 or Grade 100 should be used for overhead lifting. ASTM states that alloy chain shall be able to elongate a minimum of 20% before fracture (7.3.5). To ensure that alloy chain consistently meets this requirement, ASTM requires the use of certain alloying elements in the manufacturing of the steel for alloy steel chain. These alloys can vary from company to company, but some key requirements are specified by ASTM. The alloy properties also improve the wear and tear that the chain will experience. Note that when chain is in use, no amount of stretch is allowed.
The primary function of lifting chains is to facilitate safe and efficient lifting and rigging operations. They are used to create a secure connection between the load and the lifting device. Lifting chains distribute the load's weight evenly, ensuring stability and reducing the risk of load shifting or accidents. They allow for controlled lifting, lowering, and positioning of heavy loads with precision. Lifting chains provide reliable load-bearing capabilities, enabling the safe movement of objects in various industries, including construction, manufacturing, and logistics.
The safety measure was identifying which types of chain are appropriate and strong enough for overhead lifting. Anytime we move or lift a load it is dangerous. Moving a load along the ground has the advantage that the ground is supporting the load. We have to overcome the coefficient of friction to move the load. The chain’s working load limit does not have to match the weight of the load. It needs to be able to handle the tension applied, which is based on the surface that it is being moved over plus some fraction of the weight of the load. This can be calculated using formulas.
If we lift that same load off the ground, we now have to overcome gravity. The chain’s working load limit will have to be of sufficient strength to support the weight of the load plus any additional forces imposed by angles and hitch type(s) used.
I am very satisfied for top quality product,quick response and attention provided by this seller and company，Thank you!
Quikly send,very good communication,all is ok,without problem.
Very good quality,fast and safe shipment,Nothing to improve
Great seller!Always online and helpful.Speedy delivery,very good and secure packing.
<p>Only alloy steel chain, grade 80 or 100 is to be used for overhead lifting. Alloy steel chain will stretch when over loaded; other types of steel may break without warning. Steel chains slings used for lifting are manufactured specifically for lifting.</p>
<p>The most common reason for damage to chain and chain links stems from improper use, e.g. not complying with the chain's WLL chart. Using a chain incorrectly can cause damage such as cracks, breaks, stretched links or fittings, excessive wear, nicks, gouges and rigid chain links or fittings</p>
<p>Equipment should generally be inspected every three months, or more frequently if subjected to severe conditions.</p>