Givens Engineering Inc. - Manipulators, End Effectors, Lift Assists, Material Handling Solutions

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	Coil Hooks for capacities up to 100,000 lb. Coil hooks are balanced wit a counterweight, loaded and unloaded.
	Tongs for Castings. Tongs are a low-cost means of gripping an object using the weight of the load to keep the jaws closed. They require that the operator manually open and close the jaws.
	Mechanical Grabs for unusual shapes. Grabs are custom-designed to fit whatever load is being lifted, with latches to hold the part firmly.
	Large Tongs for castings. Mechanical tongs can be made in any size as long as the operator can open them. Beyond that size, a powered means of opening the jaws, such as air, is necessary, or latching tongs, described below, can be used.

	Latching Tongs for heavy truck frames. These tongs open and close semi-automatically; each time the tongs are raised and lowered, the jaws change state. The operator, with a remote handle, trips the latch from open state to closed state, and vise versa.

Every lifting device must meet these stringent requirements:

- At least a 4:1 designed safety factor

- Meeting or exceeding ANSI specifications

- All welders are individually CWB certified

- Critical welds and other stress points are dye-penetrant tested, with documentation

- Load testing to double the rated capacity, with documentation

- Assembly drawing stamped by a Professional Engineer

- Rated load conspicuously labeled

- For pneumatic grippers:

air loss test, where the gripper must hold a grip after the air supply is cut off
push buttons for release and rotate must be operated by 2 pushbuttons simultaneously
optional load sense to disable the release function while the load is being carried

- Complete mechanical, pneumatic and electrical documentation with every unit shipped.