In some applications the evolution of automation means very precise and controlled linear motions.
The ESNW acuators are developed for applications requiring linear movements and positionnňing to a high degree of accuracy, repeatibility and speed variations in synchronised system. They are made with a ball screw, which is rotated by an electric motor and a ball nut driving the external piston rod of the ISO 15552 cylinder. The ESNW actuators are available in two versions: the ESNW-L with direct coaxial transmission and the ESNW-G with driving gear transmission. The available bore size for both the L an G versions are 32 and 50 mm in diameter. The pitch on the ball screw can be either 5 or 12,7 mm. They are made with the body of ISO 15552 NWT series cylinder, therefore most of the standard ISO fixing accessories can be used.
The 32-diameter version needs to prevent rotation of the piston rod by additional external system like the GLC or GLH, or alternatively a strong locking piston rod to the linear moving part of the machine. The 50-diameter version however has an internal guilding anti-rotational system for the piston rod and should stronger anti-rotational forces be required, the uso of GLCE or GLHE guides may be used. The 32-diameter version is supplied standard with a flange to suite a size 23 stepping motor and the 50-diameter version is supplied with a flange to suite a size 34 stepping motor. Upon request the ESNW actuators are available with flange to suite other types of electrical motors.
