Table of Contents
What are the hooks on a crane called?
A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane. A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached.
What is the purpose of a crane hook?
A crane hook is a device used for grabbing and lifting up the loads by means of a crane. It is basically a hoisting fixture designed to engage a ring or link of a lifting chain or the pin of a shackle or cable socket. Crane hooks with trapezoidal, circular, rectangular and triangular cross section are commonly used.
What is a Crosby hook?
Crosby hooks have two letters located near the shank. The first letter is the hook ID code (size). As the letters increase in the alphabet, the size of the hook increases. For example, for hook ID codes of the same material, F is smaller than hook ID code G, G is smaller than H, and so on.
How much wear is allowed in a hook?
Each hoist manufacturer’s manual will tell you how to measure the hook. Look for excessive wear or corrosion on the hook. Any wear exceeding 10% of the original section dimension of the hook or its load pin means the hook should be removed from service.
What is the whip line on a crane?
Another term for “Hoist Rope”. In lifting crane service it refers to the main. hoist. The secondary hoist is referred to as a “Whip Line”. Load Moment.
What is difference between lifting and rigging?
Rigging is used on most construction sites to move and place materials. Lifting refers to machines such as boom lifts, scissor lifts, forklifts and other types of man-lifts and aerial-lifts which are used to move crew members or material around a site.
What material are crane hooks made of?
Special Bar Forging Steel: Customers also have confidence in our crane hooks because they are made from special bar forging quality steel. This steel come with specific cleanliness requirements and guaranteed hardenability.
Are long shank hooks better?
Advantages Of Long Shank Bream Hooks Longer hooks are also much easier to remove from the small mouths of sunfish such as bluegill and redear. Having the longer wire to grab hold of oftentimes allows you to use your fingers to remove a hook, even when it’s deeply embedded.
What are Ramshorn hooks?
Ramshorn Hooks are commonly used with heavy lifting cranes and are found extensively in container and shipping ports. Forged from high quality steel, our hooks can be supplied with safety catches if required and shank lengths can be forged to your particular specification to allow for machining requirements.
What are Ram’s horn nails?
The nickname for this disease is ram’s horn nails because the nails are thick and curvy, like horns or claws. Onychogryphosis mostly affects the toes — specifically the big toes. If you have onychogryphosis, your nails will look:
What is a twin hook used for on a crane?
The twin hook design makes it ideal for use with two webbing slings – this design assists greatly with load distribution, prevents any lifting sling damage and avoids choking at the hook. Ramshorn Hooks are commonly used with heavy lifting cranes and are found extensively in container and shipping ports.
What DIN specifications do Your Hooks come under?
Our Ramshorn Hook range is supplied under two DIN specifications – DIN 15402 and DIN 15402B. Note that all Lifting & Marine Services hooks can be supplied with proof load test certificates and material certification to 3.1 and 3.2 levels of traceability. Enhanced load distribution