Used compactor rollers used in China

Consider the type of materials you will be testing, the required accuracy, and the specific hardness testing method you need (e.g., Rockwell, Brinell, Vickers). Also, check for ease of use and compatibility with your existing systems.

Use a specialized shipping service that handles delicate instruments. Ensure the equipment is well-packed and cushioned to prevent damage during transit.

Regular maintenance includes cleaning the equipment, calibrating it according to the manufacturer's guidelines, and checking for any wear or damage. Keep a log of maintenance activities to ensure consistent performance.