Franki pile is generally installed by bottom driving, highly special techniques such as open-ended coring, rock socketting, and composite shaft construction are used in particular situations to overcome unique site problems.
high precision linear actuator designed for use in chemical dosing and other process control applications where continuous modulation and tight accuracy are required……….
The ISPA Series of ball screw-driven linear actuators are based on an extruded aluminum frame with a built-in linear motion guide system. An AC Servo motor provides closed-loop feedback to the motion controller. …….visit manufacture