Industries
Transformer manufacturing
Heavy sections, tap connections and a stable, specification-driven buyer that most machine builders underserve.
Transformer work brings heavy sections, tap connections and a stable, specification-driven buyer. Bar tends to be thicker and wider than in switchgear work, which moves the requirement up the force range, and joints are frequently the failure point in service, which puts weight on joint preparation, embossing and plating. The segment is underserved: most machine builders address panel shops, leaving transformer manufacturers to specify machines designed for lighter work.
Machines
EMAC-BP-40
400 kN CNC busbar punching and shearing machine
EMAC-BP-60
600 kN CNC busbar punching, shearing and embossing machine
EMAC-BP-80
800 kN CNC busbar punching and shearing machine
EMAC-BB-H12
Hybrid hydraulic 3D busbar bending machine, 400 kN, ±0.1°
EMAC-BB-S12
Servo 3D busbar bending machine, 400 kN, ±0.1°, no hydraulics
Technical background
Punching
Punch-to-die clearance for copper and aluminium busbar
How to set punch-to-die clearance per side on 6-20 mm copper and aluminium bar, read the sheared edge, and specify burr height on the drawing.
Bending
Springback compensation in busbar bending
How to predict and cancel springback in copper busbar bending: the governing ratios, a worked calculation, overbend by EN 13601 temper, and CNC offset tables.
Standards
Busbar hole patterns and what DIN 43673-1 actually specifies
What the four pages of DIN 43673-1 govern, the engineering behind edge distance, pitch and hole diameter, and why DIN 46433 is not a busbar standard.
Materials and finishing
Copper temper and minimum bend radius
How EN 13601 tempers R220, R240 and R290 set the minimum bend radius of copper busbar, how to read a mill certificate, and when annealing is the wrong answer.
Standards referenced
Request a quote
Pricing, configuration and machine selection for busbar processing. An engineer replies within one business day, with no obligation.