Air-bearing vibration exciter Spektra APS 129

Long stroke shaker with air bearing table APS 129

The APS 129 ELECTRO-SEIS® shaker consists of an air bearing mounting table and air bearing assembly driven by an APS 113-AB ELECTRO-SEIS® long stroke air bearing shaker. The shaker imparts transverse base excitation to DUTs mounted on the table.

Static and dynamic loads normal to the table surface are transferred through a large area precision air bearing to a rigid guide bar of rectangular cross section. The drive unit and guide bar assembly are mounted on a common rigid base, ensuring correct alignment of all moving parts.

The standard hole pattern consists of 25 threaded holes in a 5 x 5 array. Optional metric threads and spacing are available.

The APS  113-AB drive unit employs permanent magnets and is configured such that the armature coil remains in a uniform magnetic field over the entire stroke range, ensuring a high degree of linearity. The self-cooled armature coil requires power from a matching power amplifier – the PA 500 DM.

Clean, water and oil free air for bearing operation is carried to the moving bearing housing by flexible PVC tubing, constrained to move with a rolling action. The shaker may be used with optional accessory items to extend the areas of application: 

APS 0109 - ZERO POSITION CONTROLLER - automatically controls the zero position of a vibration exciter irrespective of its payload. 

Optional Configurations

APS 129-HF

All features of the basic APS  129  ELECTRO-SEIS® shaker are retained. The drive coil is made for 40  % increase in force with a 50 % duty cycle (30 min cycle).