The BTA20.3-NB-LA-KA-BS, Bosch Rexroth Indramat, BTA20 Machine Control Boards module blends high-precision rotary motion with rugged protection for industrial automation. Housed in a light gray RAL 7035 aluminum alloy chassis, the board resists corrosion and mechanical stress while maintaining a compact footprint. Its IP65 protection class seals against dust ingress and low-pressure water jets, ensuring reliable operation in harsh factory environments. Dual serial channels – RS232 and RS422 – process and transmit data seamlessly, enabling robust point-to-point and differential communication across control networks.
At the core of this rotary table assembly lies a stepper motor mated to a precision worm gear drive mechanism. The unit features a table diameter of 200 mm with a center hole diameter of 50 mm, offering a generous work envelope. Positioning accuracy is guaranteed by a travel range of 360° continuous, a resolution of 0.001°, and a repeatability of ±15 arcsec. Structural loads up to 2000 N axial and 1500 N radial are accommodated, while a 24 V DC power supply at a maximum current of 1 A delivers efficient, low-voltage operation. Installation and mechanical integration are simplified through a customizable Interface A mounting interface, and the dual-bus communication section supports both INTERBUS-S and BT-BUS protocols. With a total weight of 8 kg, product designation BTA, Line 20, and design revision 3, it satisfies stringent space and mass constraints without compromising strength.
Configured as NB-LA-KA per the factory preset combination, the BTA20.3-NB-LA-KA-BS streamlines commissioning and reduces setup time. The varnished front panel, reinforced by a chemical-resistant polyester foil overlay, enhances durability and extends service life under corrosive or abrasive conditions. Its modular bus connections and proven mechanical tolerance deliver dependable integration, making this module ideal for high-precision indexing, rotary positioning, pick-and-place machinery, and assembly-line automation where reliability and accuracy are paramount.
Center Hole Diameter
50 mm
Drive Mechanism
Worm Gear
Material
Aluminum Alloy
Max. Axial Load
2000 N
Max. Radial Load
1500 N
Motor Type
Stepper Motor
Mounting Interface
Interface A (customizable)
Power Supply
24V DC
Repeatability
±5 arcsec
Resolution
0.001°
Table Diameter
200 mm
Travel Range
360° continuous
Type
Rotary Table
Weight
8 kg
Product
BTA
Line
20
Design
3
Configuration
NB-LA-KA
Communication Bus
INTERBUS-S / BT-BUS