Crushing riverstones into gravel requires a specific set of equipment and techniques. Here are the general steps:

Choose the right equipment: You will need a crusher machine that is capable of breaking down large riverstones into smaller sizes. There are various types of crushers available such as jaw crushers, impact crushers, cone crushers, and gyratory crushers. The choice of crusher will depend on the size and hardness of the riverstones.

Prepare the riverstones: Before crushing, you need to prepare the riverstones by removing any dirt or debris. You can use a shovel or a backhoe to clear the area and move the riverstones to a central location.

Start crushing: Once you have prepared the riverstones and set up the crushing machine, start feeding the riverstones into the crusher. Depending on the type of crusher, you may need to adjust the settings to achieve the desired size of gravel.

Sort and store the gravel: After crushing, the riverstones will be transformed into gravel. You can use a screen to sort out any larger pieces of gravel that may not be suitable for your needs. Once the gravel has been sorted, store it in a designated location.