Rockwell hardness testers can be categorized by application method: general Rockwell hardness testers, surface Rockwell hardness testers, and comprehensive Rockwell hardness testers.
By operation method: manual Rockwell hardness testers and electric Rockwell hardness testers.
By display method: pointer type and digital display Rockwell hardness testers.
By loading method: weights are loaded using the lever principle, and the motor and sensor form a closed-loop loading system.
By reference platform: manual platform Rockwell hardness testers, platform-moving automatic Rockwell hardness testers, and head-moving automatic Rockwell hardness testers.