A stone scissor lifting clamp is a specialized tool designed for lifting and moving heavy stones or slabs. It typically consists of two scissor-like arms made of durable metal, with serrated gripping edges that securely hold onto the stone. The clamp is operated by a hydraulic or manual mechanism that applies pressure to the arms, causing them to close and grip the stone tightly.

The specifications of a stone scissor lifting clamp can vary depending on the size and weight of the stone it is designed to lift. Some common specifications include:

1. Capacity: The lifting capacity of the clamp refers to the maximum weight it can lift. This can range from a few hundred kilograms to several tonnes, depending on the design of the clamp.

2. Jaw Opening: The jaw opening refers to the maximum width of the stone that the clamp can grip. This can range from a few centimeters to several meters, depending on the size of the clamp.

3. Grip Range: The grip range refers to the minimum and maximum thickness of the stone that the clamp can grip securely. This is important to ensure that the clamp can hold onto the stone without slipping or damaging it.

4. Weight: The weight of the clamp is an important consideration, as it will affect how easy it is to maneuver and lift. Most stone scissor lifting clamps are designed to be relatively lightweight, but some larger models may be quite heavy.

5. Material: The material used to make the clamp should be strong, durable, and able to withstand the weight of the stone. Common materials include steel and aluminum alloys.

6. Safety Features: Stone scissor lifting clamps should include safety features such as locking mechanisms to prevent accidental release, and overload protection to prevent the clamp from lifting too much weight.

7. Mounting Options: Some clamps may include mounting options to attach to a crane or other lifting equipment, while others may be designed for manual use with a forklift or other machinery.