Chain Block is a Kind of Manual Lifting Equipment. Only by Manually Pulling the Chain of the Chain Block Can the Weight Hanging on the Lower Hook Make an Upward or Downward Action. Normally, Its Service Life Can Be Maintained at More Than 8 Years, but if It is Overloaded, Its Service Life Will Be Greatly Reduced.

How to Install the Load Limiter on the Chain Block

In Order to Prevent the Adverse Consequences Caused by Overload when Customers Use Chain Block to Lift Heavy Objects, a Unit Refitted and Upgraded the Chain Block and Installed a Load Limiter.

The Load Limiter Comprises a T-shaped Sleeve, and the Journal of the T-shaped Sleeve is Successively Sleeved with Mutually Close Friction Plate A, Bracelet Wheel, Friction Plate B, Spring and Load Regulating Nut Matched with the Thread at the End of the T-shaped Sleeve Journal; a Wedge-shaped Groove is Arranged on the Inner Hole Wall of the Bracelet Wheel, and a Wedge-shaped Tightening Cylinder is Arranged in the Wedge-shaped Groove;

The Judgment Standard Lifting Weight of the Load Limiter is Determined by the Friction Between the Hand Chain Wheel and the Friction Plate. when the Weight Gravity is Greater Than the Friction, the Hand Chain Wheel and the Friction Plate Slip, So It is Impossible to Lift the Weight and Realize the Load Limiting Function; After Being Hoisted into the Air, the Chain Wheel and T-shaped Sleeve Are Wedged Tightly by Pulling the Chain Wheel and Wedging Cylinder Back to Lower the Weight from the Air, Which Can Avoid the Problem That the Chain Hoist Cannot Put the Weight Down Due to the Slip of the Chain Wheel and Friction Plate, and Has Higher Working Reliability and Better Safety.