I am the area manager of EBAY. I learned a great potential company in Qingdao Sail Rigging. They have a Very professional team. Qingdao Sail Rigging make great adjustments in product development,finance,human resources, and marketing. They also do great search into oversea market and lay the foundation for soft landing of better overseas development. Through this Exchange visit, I am great sure that oversea market needs Qingdao Sail Rigging.
Qingdao Sail Rigging already have a sound manufacturing and testing processes.There are professional Vertical Tensile Testing Machines, Hardware Testers and Salt Spray Test Machines in their 12000-square-metre factory. I have learnt every sail rigging have to test various safety performances and be sure working safety. We will cooperate with Qingdao Sail Rigging for their professional process, Patient services and high-quality products.
I am a Norwegian. Qingdao is my wife's hometown. My wife and I came to Qingdao Sail Rigging for a field trip and exchange study. General manager of Qingdao Sail Rigging enthusiastically entertained us. We discussed from product type, specification and breaking force to overseas and domestic foreign trade situation. During this in-depth knowledge, their professionalism and hospitality won me over. It's a very pleasant cooperation with Qingdao Sail Rigging.
Qingdao Sail Rigging has high quality and can stand the test. We have cooperated with Qingdao Sail Rigging five years. They are seven days a week, fully control the process, and can handle unexpected situations in a timely manner to ensure my delivery dates and quality. There is no any quality problem and all favorable comments. I get a lot of foreign customers by their productions. I hope we will keep on cooperating.
Qingdao Sail Rigging has received full certification of China Quality Certification Center. Among many certificated companies, Qingdao Sail Rigging is the most advanced company with most complete information and qualification.
I have many pleasant corporations with Qingdao Sail Rigging. PICC confirms and underwrites their productions. It provides our 100% security assurance. We feel relieved from their quality material and reasonable prices. We believe Qingdao Sail Rigging.
· Eye Bolt Application
An eye bolt is a bolt with a loop at one end and used to firmly attach a securing eye to a structure, so that ropes ,chain or cables
may then be tied to its loop. Some eye bolts also feature the ability to pivot or swivel.
As eye bolts are typically used to attach ropes, string or chains to objects, Many people string wire from eye bolts on the back of picture frames, for instance, to allow them to rest on hooks or nails on a wall.
Eye bolt thread sizes are available in standard inches and metric millimeters. Common sizes in standard measurements range from ¼ inch all the way to 2 ¼ inches in diameter. Common sizes in metric measurements range from 6 mm to 64 mm in diameter, and are available in 1 mm increments.
Several different types of eye bolts are available in a number of materials. Inspect eye bolts regularly to check for wear and effectiveness. Eye bolts are manufactured out of several materials including aluminum, bronze, hardened and stainless steels, brass and titanium.
Some common types of eye bolts are forged eye bolts, screw eye bolts and shoulder eye bolts. Each type of eye bolt has its practical applications. Forged eye bolts offer higher load ratings than most eye bolts. Screw eye bolts are often used for lifting and rigging.The shoulder feature provides more stability to the base of the eye and therefore, makes it the recommended choice for angular loading.
All of these basic types that Qingdao Sail Rigging offers are manufactured in the drop forged process to ensure greater strength and have a hot dip galvanized finish.
1.Use plain or regular eye bolts (non-shoulder) or ring bolts for vertical loading only. Angle loading on non-shoulder bolts will bend or break them.
2.Use shoulder eye bolts for vertical or angle loading. Be aware that lifting eye bolts at an angle reduces the safe load.
3.Follow the manufacturer's recommended method for angle loading.
How should you use eye bolts safely?
Orient the eye bolt in line with the slings. If the load is applied sideways, the eye bolt may bend. Pack washers between the shoulder and the load surface to ensure that the eye bolt firmly contacts the surface. Ensure that the nut is properly torqued.
Engage at least 90% of threads in a receiving hole when using shims or washers.
Attach only one sling leg to each eye bolt.
1.Inspect and clean the eye bolt threads and the hole.
2.Screw the eye bolt on all the way down and properly seat.
3.Ensure the tapped hole for a screw eye bolt (body bolts) has a minimum depth of one-and-a-half times the bolt diameter.
4.Install the shoulder at right angles to the axis of the hole. The shoulder should be in full contact with the surface of the object being lifted.
5.Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal.
*Use eye bolts at a horizontal angle greater than 45°. Sling strength at 45° is 71% of vertical sling capacity. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity.
*Use a swivel hoist ring for angled lifts. The swivel hoist ring will adjust to any sling angle by rotating around the bolt and the hoisting eye pivots 180°.