420 ton-8000 mm press brake for Czech Republic

ACSG2 crowning and much more

Agados is a Czech company more than 120 years old. It was born as an agricultural machinery builder and was nationalised in 1948. After becoming privately owned again, in 1992 it began production of automotive trailers. In 2006 the Czech headquarters moved to a new production site. Now it is one of the most important European manufacturers, with several foreign sites.

Agados has to face the problem of angle irregularity every day. In the center, the profile always was more open with respect to the ends. The defect was especially noticeable with longitudinal beams of bigger trailers: thicker sheet metal is more resistant, and piece length highlights the effect. Welding becomes more difficult and production times increase.

When the time came to buy a new press brake, Agados has evaluated numerous manufacturers. The decision factor, the one that would have tipped the balance was getting a constant angle. Many companies rely on mechanical crowning systems with bench wedges. Others choose the proportional hydraulic crowning, where part of the main cylinder pressure is brought to the cylinders of the lower beam. Other still preload the lower beam based on the theoretical resistance of the sheet.

For Agados, none of these systems was satisfactory. The only one to pass the exam with flying colors was the ACSG2 real-time crowning. The Gasparini system, by measuring the actual deformation of the ram, is able to produce parts perfectly straight and with a constant angle.

The machine we produced is a 420 ton/8 meters X-Press, with a 500-mm throat and a 600-mm daylight. It is equipped with hydraulic clamping on the ram and with adapters with AIC pneumatic clamping for punches. This configuration, together with hydraulic die clamping, allows for a quick tool setup.

The ECO+ package, with inverter motor drive, guarantees a considerable energy saving and an increase in ram speed.

The back gauge has 4 independent axis X-R-Z1-Z2, with two motorized and two manual extra fingers. Retractable sheet supports hold the piece so that very big pieces are not damaged. Phoeni-x CNC, with 3D file import and remote assistance, allows to move programs and drawings over the net.

The machine has been tested and accepted by the customer, and will be soon shipped for installation.