Quality Products from Crosby Group
The Crosby Group is committed to providing its customers with the best quality products and services available. This long-time commitment to quality is apparent with our line of crane hooks. With well manufactured features and progressive enhancements, our crane hooks are some of the most widely used hooks in the industry. Innovations are continually made to improve our hooks.
This is why Crosby is the industry leader in crane hook production.
All Crosby hooks meet design factor requirements. They are designed with a cross section which allows deformation and straightening to take place prior to failure if the product is overloaded.
Quenched and Tempered:
A heat treatment process maximizes the properties of the steel. It toughens the material that helps reduce the risk of catastrophic failure. Our quenched and tempered process adds an extra level of customer satisfaction. This gives our hooks the Four-Performance Characteristics critical when it comes to overhead lifting operations.
- Working Load Limit: The highest force a product can support
- Ductility: The ability for a product to deform should it be overloaded. The deformation gives warning to the user before catastrophic failure or the breaking of the hook.
- Fatigue Resistance: The ability for a product to withstand repeated use of a load
- Toughness: The ability of a material to resist fracture
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.
All crane hooks and other products are verified in Crosby’s fully equipped laboratory. This gives customers complete confidence in a crane hook purchased as the material analysis can be traced from the steel mill throughout the manufacturing process.
These are two strategically placed marks that are forged in the hook. This allows for the user to determine if deformation has taken place by measuring and is an indicator as to whether or not the hook has been overloaded, abused, and if it needs to be taken out of service.
These are also two marks forged into the hook that shows the angles allowed between two sling legs and provides the opportunity to approximate other included angles between two sling legs.
Forged Letter Code:
This raised letter code gives three important pieces of information about the hook:
- Working Load Limit: This is forged in the body of the hook.
- Type of Steel: The code identifies the type of steel that the hook is made of.
- A = Alloy
- C = Carbon
- Forged Frame Size: This makes latch selection easier. By matching the frame size of the hook to the latch information, the proper latch can be easily determined.
The P.I.C. code is forged into every Crosby hook and can be used to maintain strict material control – from the steel mill, to material property verification, and throughout the duration of the manufacturing process.
Crosby products bearing the P.I.C. code provide the product user with the added benefits of assurance and confidence. It’s assurance that the hook you’re purchasing is as reliable as possible because it’s supplied by a company that has a solid reputation for maintaining consistent and superior quality. It also shows a company that is willing to put its name and P.I.C. code on every product.
We provide detailed application information to assist customers in properly selecting and using crane hooks. This includes a formal application warning system that:
- Attracts the attention of the user
- Informs the user of factors involved in the task
- Informs the user of the proper application procedures that are needed.
1958: Crosby was the first manufacturer to Load Rate hooks with their Working Load Limit
1973: Crosby introduced the Quenched and Tempered process of heat treating products as part of our ongoing effort to improve the characteristics that are so critical in overhead lifting.
1977: Crosby forging a product identification code in every hook that we produced. This allows Crosby to maintain strict material control of our products – from the forging of the raw steel to the manufacturing process. It also gave Crosby the ability to provide certified material analysis for each production lot.
1992: Crosby introduced the patented QUIC-CHECK marks, now forged into every Crosby hook.
Features Included with the 320N Eye Hook:
- Interlocking Hook Tip
- Durable Latch (that can easily be made positive locking)
- Rated for Both Wire Rope and Chain
- 5 to 1 Design Factor
Certifications for Hooks Include:
- American Bureau of Shipping
- Lloyds Register of Shipping
- Det Norske Veritas
- American Petroleum Institute
- Nuclear Regulatory Commission