Gripper Chain for agricultural machinery (or simply referred to as Clamping conveyor chains) are chains specially used for clamping and conveying crop stalks on agricultural machinery such as agricultural automatic threshing machines and semi feed grain combine harvesters. Therefore, these chains are also referred to as agricultural machinery feed chains and thresher chains. The clamping chain is divided into a chain structure without a sleeve and an inner link structure with a sleeve; Gripper Chain are widely used in rice harvesters. The basic structure of a chain is similar to that of a sleeve roller chain, characterized by a high pointed toothed chain plate and a large inner width of the inner section to increase the width and firmness of the clamping. During operation, the clamping chain and guide rail jointly form a support and clamping mechanism for the crop stalks, and rely on the operation of the chain to achieve the goal of evenly transporting the stalks. Gripper Chain typically have a low speed when used, and bear less tensile load during operation. They are ultra light functional conveyor chains. The clamping conveyor chain can be used in multiple rows in parallel. In addition, according to actual needs, as long as the gap between the chain hinge and the inner and outer chain plates is increased, the clamping chain can also have the function of side bending.