Abstract: A sample grinder includes a base having a bowl and a rotatable drive plate to operably support a grinding wheel. A head is configured to support a specimen holder and has a first drive for rotational drive of the specimen holder and a second drive for moving the head and specimen holder toward and away from the drive plate. The head has a sleeve that is larger than the specimen holder. A cover is disposed over the bowl and has an opening larger than the sleeve so that the sleeve fits through the opening when the specimen holder is moved toward the rotatable drive plate. The grinding wheel is mountable to the plate in a single radial orientation only. A dressing system is operably connected to a controller to monitor the current of the drive plate motor and/or the head first drive actuates the dressing system based upon the current drawn by the drive plate motor and/or the head first drive motor falling below a predetermined value.

Abstract: A saw has a system for sensing the torque on a cutting blade to signal when the blade begins to cut material. The saw has a drive belt extending between a driven wheel and a drive wheel and a belt tensioner that engages a side of the belt and maintains tension in the belt. The belt tensioner is movable to maintain the tension in the belt. A control system calculates the movement of the belt tensioner. The saw has a system for determining the size of the sacrificial blade. A through beam photoelectric emitter and receiver pair are positioned on opposite sides of the blade such that a largest cutting blade is moved above the beam regardless of a horizontal position of the cutting blade and sensor senses a vertical position of the axis of the blade. The sensor senses the vertical position of the blade axis when the blade is moved above the beam.

Abstract: A sample grinder includes a base having a bowl and a rotatable drive plate to operably support a grinding wheel. A head is configured to support a specimen holder and has a first drive for rotational drive of the specimen holder and a second drive for moving the head and specimen holder toward and away from the drive plate. The head has a sleeve that is larger than the specimen holder. A cover is disposed over the bowl and has an opening larger than the sleeve so that the sleeve fits through the opening when the specimen holder is moved toward the rotatable drive plate. The grinding wheel is mountable to the plate in a single radial orientation only. A dressing system is operably connected to a controller to monitor the current of the drive plate motor and/or the head first drive actuates the dressing system based upon the current drawn by the drive plate motor and/or the head first drive motor falling below a predetermined value.

Abstract: A saw has a system for sensing the torque on a cutting blade to signal when the blade begins to cut material. The saw has a drive belt extending between a driven wheel and a drive wheel and a belt tensioner that engages a side of the belt and maintains tension in the belt. The belt tensioner is movable to maintain the tension in the belt. A control system calculates the movement of the belt tensioner. The saw has a system for determining the size of the sacrificial blade. A through beam photoelectric emitter and receiver pair are positioned on opposite sides of the blade such that a largest cutting blade is moved above the beam regardless of a horizontal position of the cutting blade and sensor senses a vertical position of the axis of the blade. The sensor senses the vertical position of the blade axis when the blade is moved above the beam.

Abstract: A saw has a system for sensing the torque on a cutting blade to signal when the blade begins to cut material. The saw has a drive belt extending between a driven wheel and a drive wheel and a belt tensioner that engages a side of the belt and maintains tension in the belt. The belt tensioner is movable to maintain the tension in the belt. A control system calculates the movement of the belt tensioner. The saw has a system for determining the size of the sacrificial blade. A through beam photoelectric emitter and receiver pair are positioned on opposite sides of the blade such that a largest cutting blade is moved above the beam regardless of a horizontal position of the cutting blade and sensor senses a vertical position of the axis of the blade. The sensor senses the vertical position of the blade axis when the blade is moved above the beam.

Abstract: A sample grinder includes a base having a bowl and a rotating drive plate to operably support a grinding wheel. A head is configured to support a specimen holder and has a first drive for rotational drive of the specimen holder and a second drive for moving the head and specimen holder toward and away from the drive plate. The head has a sleeve that is larger than the specimen holder. A cover is disposed over the bowl and has an opening larger than the sleeve so that the sleeve fits through the opening when the specimen holder is moved toward the rotating drive plate. The grinding wheel is mountable to the plate in a single radial orientation only. A dressing system is operably connected to a controller to monitor the current of the drive plate motor and/or the and the head first drive actuates the dressing system based upon the current drawn by the drive plate motor and/or the head first drive motor falling below a predetermined value.

Abstract: A sample encapsulation system includes a base, a chamber having an inlet and a chamber housing in which the chamber is housed. The chamber is fixedly mounted at least in part within the housing and the housing is movably mounted to the base. The system includes a cap, a first ram operably mounted to the cap for engaging the chamber inlet and a second ram positioned in the chamber opposite the inlet. The second ram is movable toward and away from the first ram. The chamber and housing are movable toward the cap for engaging the first ram with the chamber inlet during an encapsulation cycle and away from the cap, disengaging the first ram from the chamber inlet following an encapsulation cycle. The system includes heating and cooling assemblies and a temperature sensor located remotely from the chamber interior to automatically isolate cooling water to the system.

Abstract: A saw has a system for sensing the torque on a cutting blade to signal when the blade begins to cut material. The saw has a drive belt extending between a driven wheel and a drive wheel and a belt tensioner that engages a side of the belt and maintains tension in the belt. The belt tensioner is movable to maintain the tension in the belt. A control system calculates the movement of the belt tensioner. The saw has a system for determining the size of the sacrificial blade. A through beam photoelectric emitter and receiver pair are positioned on opposite sides of the blade such that a largest cutting blade is moved above the beam regardless of a horizontal position of the cutting blade and sensor senses a vertical position of the axis of the blade. The sensor senses the vertical position of the blade axis when the blade is moved above the beam.

Abstract: A sample encapsulation system includes a base, a chamber having an inlet and a chamber housing in which the chamber is housed. The chamber is fixedly mounted at least in part within the housing and the housing is movably mounted to the base. The system includes a cap, a first ram operably mounted to the cap for engaging the chamber inlet and a second ram positioned in the chamber opposite the inlet. The second ram is movable toward and away from the first ram. The chamber and housing are movable toward the cap for engaging the first ram with the chamber inlet during an encapsulation cycle and away from the cap, disengaging the first ram from the chamber inlet following an encapsulation cycle. The system includes heating and cooling assemblies and a temperature sensor located remotely from the chamber interior to automatically isolate cooling water to the system.