The weight of the excavator that a rotary crushing clamp can be adapted to varies depending on the specific model and brand.

Generally, small - sized rotary crushing clamps may be adapted to excavators weighing around 3 - 8 tons. These small excavators are usually used for relatively small - scale demolition operations, such as indoor demolition, small - building demolition, or operations in areas with limited space. The matching crushing clamps can handle some light - weight building materials, such as thin walls and small concrete components.

Medium - sized rotary crushing clamps often match excavators weighing 10 - 20 tons. This combination is suitable for medium - scale demolition projects, such as the demolition of general multi - storey buildings (not large - scale high - rise buildings) and the demolition of highway facilities. These crushing clamps have sufficient power to break medium - strength concrete structures and handle slightly larger building waste.

Large - sized rotary crushing clamps can be matched with excavators weighing 20 - 50 tons or even heavier. Such combinations are used for large - scale building demolition projects, the demolition of large - scale industrial facilities, and the preliminary crushing of ore in mining operations. The powerful power provided by large excavators enables the crushing clamps to effectively handle thick reinforced concrete structures, large pieces of ore, and other hard materials.

However, in actual selection of the adaptation, multiple factors such as the working environment (such as space limitations, ground bearing capacity, etc.), material characteristics (hardness, size, etc.), and specific operation requirements need to be considered comprehensively to determine the most suitable combination of excavator weight and rotary crushing clamp.