Grau 70 Cadeia de Transporte
Grau 70 Cadeia de Transporte
Transport chains are high strength chains used in applications where much strength is needed yet the task served is rather straightforward. Sometimes referred to as grade 70 cadeia de encadernação, cadeia de carga, corrente de alta resistência, ou cadeia de caminhões, esta corrente resistente foi projetada para aplicações de amarração. Grau 70 cadeia is never to be used for overhead lifting.
Como é medido o grau da corrente?
Corrente grades are specified by the NACM (Associação Nacional de Fabricantes de Correntes) e
o ASTM (American Society for Testing and Materials) standards that define the dimensional, mechanical, and compositional requirements that determine the proof of the steel, minimum breaking force required, alongamento, etc. The combination of these measures determines the working load limit that each heavy duty chain can handle before risk of breakage. These factors are tested in a laboratory setting to ensure chain load capacity.
Grau 43 cadeia, also known as Cadeia de teste alta, is a mid-grade cargo chain with a working load limit of 5,400 lbs for 1/2″ cadeia. Grau 30 Corrente，also called cadeia de bobina prova，is a light to medium duty chain，Grau 70, referred to as Cadeia de Transporte, is top level of heavy chain with a working load limit as high as 11,300 lbs of cargo for 1/2″ cadeia. Chain suppliers are required to clearly mark 5/16” and 3/8” chain links with their grade within 1 foot intervals along the truck chains, and within 3 foot intervals for ½” chain. This is to ensure easy identification and promote safety. It is very important to use the right heavy duty chain for the load you are transporting and these rules are D.O.T. enforced.
When to use Grade 70 Corrente
When you need heavy chain to secure large loads grade 70 cadeia is the best choice. With the most efficient weight-to-strength ratio that comes from drop forging and heat treating, this truck chain allows you peace of mind that your load will be secured in place against sudden stops or tight turns where another transport chain could fail. Grau 70 cadeia e grade 70 chain hooks can be easily identified by their yellow zinc chromate finish and either 7, 70, ou 700 embossed into the surface. Grau 70 cadeia strength is mandatory for auto transport chains, flatbed chains, heavy equipment chains, tractor tie downs, and log transport chains.
Hooks for Transport Chain
There are three common types of hooks used for grade 70 transport chain.
- Clevis Grab Hook A shallow throat opening allows for easy and secure connections.
- Clevis Slip Hook Also referred to as a sling hook, is durable and features a wider throat than the clevis grab hooks.These hooks can be attached easily to chains, and allow more versatility within your tie down assembly.
- Clevis Slip Hook with Safety Latch Features a wider throat than a clevis grab hook; designed with a safety latch over the wide throat of the hook to ensure the chain is held in place.
Log Chain
Grau 70 transport chain can be used as logging chain, however standard log chains rate at grade 43. Grau 70 cadeia is designed for tie-down use only, but will work for any logging operation. High test log chains are typically used for securement, binding, construction, logging, and agriculture, and our grade 70 transport chain is suitable for all of the above.
Chain Extension
A short section of cadeia attached to the end of certain tie-down straps. These extensions include an eye grab hook on the end.
