The TTR2 uses a rotating-nut-type stepper motor linear actuator to move the input arm of a low-friction radial compression mechanism. Motion of the input arm causes the opening diameter to change. The diameter of the opening is measured by an encoder on the stepper motor. The linear force is measured by a precision force transducer and converted to radial force
Various sizes of Blockwise metal compression stations may be attached to the machine. Compression stations can be quickly removed and replaced. All of the compression stations feature low friction and linear relationship of stroke to diameter. To obtain the lowest friction and lowest purchase cost, choose the smallest mechanism that accommodates your size range. Temperature control systems are optional, and are sold as part of the compression stations. Some compression stations use heaters embedded in the dies, while others use an overall oven-type enclosure. Temperature may be set in the range of room temperature to 50C (most typically 37C).