803U-3-C CNC Busbar Machinery Hydraulic Copper Busbar Punching Cutting Bending For Transformer

Measured data and reference conditions — 803U-3-C

Values per the model datasheet. Each paragraph is self-contained and states the test condition, the value and the comparison baseline.

Three power classes on one machine architecture

Test condition: the three power classes of the 803U-3-C, built on the same machine architecture. Value: 300 kN for 12 mm × 150 mm, 500 kN for 16 mm × 200 mm and 800 kN for 20 mm × 250 mm. Comparison baseline: entry-level 3-in-1 machines, limited to 10 mm or 12 mm thickness. Effect: the 16 to 20 mm range required by transformer busbar is covered without a second machine.

Punching range tracks the power class

Test condition: punching across the three power classes of the 803U-3-C. Value: Φ4.3–25 mm at 300 kN, Φ4.3–30 mm at 500 kN and Φ4.3–34 mm at 800 kN. Comparison baseline: a punching unit with a fixed die range, which cannot follow the growth of the connection diameter. Effect: the larger bolts typical of high-current busbar are punched on the same machine.

Independent units running in parallel

Test condition: the three units operating simultaneously in the same cycle. Value: independent units, with ±1° bending accuracy and ±0.5° repeatability. Comparison baseline: sequential processing machines, where the part waits for each unit to be released. Effect: cycle time becomes that of the slowest unit instead of the sum of the three operations.

Choosing a class by weight and power

Test condition: model selection against the working busbar size. Value: 1,400 kg and 3 × 4 kW at 300 kN; 1,700 kg and 3 × 5.5 kW at 500 kN; 2,100 kg and 3 × 5.5 kW at 800 kN, with footprints from 1,780 × 1,400 × 1,300 mm to 1,950 × 1,560 × 1,450 mm. Comparison baseline: all three classes use the same Siemens PLC control. Effect: the choice is driven by busbar size, with no change in control technology or operating method.