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.
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.
Zabezpečenie kvality, prijateľné ceny, krajina pôvodu služieb, skúsený technický personál, vynikajúci výkon produktu.
Trvalo existujú núdzové zásoby pre bežnú veľkosť. To vám ušetrí čas.
Shandong Lisheng Machinery Co., Ltd. je podnik novej generácie zameraný na hardvérový priemysel. Nachádza sa v meste Jining v provincii Šan-tung, rodnom meste Konfucia a Mencia. Spoločnosť je profesionálny hardvér podporujúci podnik integrujúci dizajn, výskum a vývoj, výrobu a predaj. Hlavnými produktmi sú reťaze, oceľové laná a ich príslušenstvo: okovy, otočné pracky, spony, krúžky, karabíny a iné výkovky a odliatky a prijímajú výkresy a vzorky na spracovanie.
Zdvíhacia reťazs are typically made from high-quality alloy steel, which provides excellent strength and durability. They consist of a series of interconnected links that form a continuous chain. Zdvíhacia reťazs are available in different sizes, grades, and configurations to match specific load requirements. They may feature different types of end fittings, such as hooks, shackles, or rings, for convenient connection to lifting devices. Zdvíhacia reťazs are designed to meet industry standards and regulations for load capacity, safety, and performance.
One of the safety measures implemented was to place chain in Grades based on the ultimate breaking strength of that chain. This number is what we see today G30, G43, G70, G80 & G100 and the common chain grades. The number after each letter is N/mm2. For example, G80 means that the maximum stress on the chain at ultimate strength is 800 newtons per millimeter squared.
Zdvíhacia reťazs offer numerous benefits in various lifting and rigging applications. They provide exceptional strength, durability, and load-bearing capacity, making them suitable for heavy-duty lifting tasks. Zdvíhacia reťazs can withstand high tension and are resistant to wear, corrosion, and damage. They offer flexibility and adaptability, allowing for easy adjustment to accommodate different load sizes and shapes. Additionally, zdvíhacia reťazs are versatile, making them suitable for various industries and applications where safe and reliable lifting is required.
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.
Na zdvíhanie nad hlavou sa má používať iba reťaz z legovanej ocele triedy 80 alebo 100. Reťaz z legovanej ocele sa pri preťažení natiahne; Iné druhy ocele sa môžu bez varovania zlomiť. Oceľové reťaze, popruhy používané na zdvíhanie sa vyrábajú špeciálne na zdvíhanie.
Najčastejším dôvodom poškodenia reťaze a článkov reťaze je nesprávne používanie, napr. nedodržanie tabuľky WLL reťaze. Nesprávne použitie reťaze môže spôsobiť poškodenie, ako sú praskliny, zlomy, natiahnuté články alebo tvarovky, nadmerné opotrebovanie, škrabance, ryhy a tuhé články reťaze alebo tvarovky
Zariadenie by sa malo vo všeobecnosti kontrolovať každé tri mesiace alebo častejšie, ak je vystavené náročným podmienkam.