Adline 2500 × 50T Servo-Hydraulic CNC Press Brake

Adline 2500 × 50T Servo-Hydraulic CNC Press Brake

A 2.5-metre, 50-tonne press brake built around two independently driven hydraulic cylinders, a CNC backgauge and automatic crowning. It is controlled from a Delem DA-66T touchscreen on a suspended pendant, and the same programming software runs offline, so the next job can be prepared at a desk while the machine is bending.

Two cylinders, one level ram

The Y1 and Y2 cylinders are synchronised by a servo motor and read back through optical linear scales with 0.005 mm resolution. The control corrects each side independently, which is what holds the ram parallel to the bed: positioning accuracy is within ±0.02 mm, repositioning within ±0.01 mm, and the bending angle error is stated at 0.5° or less.

Crowning that follows the load

Under load the table and the ram both deflect, and the middle of a long part comes out more open than its ends. The automatic mechanical compensation system (the "+1" crowning axis) counters that deflection in the table, so the angle stays the same along the full bending length.

Program at the machine or in the office

The Delem DA-66T calculates the bend sequence automatically and checks each step for collisions between the part, the tools and the machine. The offline software works the same way as the control, so programs are built and checked away from the brake and loaded when needed.

Tooling and backgauge

• Quick-release upper tool clamping to the European Amada-Promecam standard
• Standard lower tooling: L seat, T block and double-V die
• X-axis backgauge with 500 mm travel and two stop fingers
• Axis indexing and calibration kept by two Inovance servo motors
• Two front support arms for long or heavy sheets

Components

Hydraulic valves are Bosch Rexroth and the oil pump is ECKERLE (Germany), with a built-in oil heater so the machine reaches working temperature before production. Electrical components are Schneider; linear guides and ball screws are Taiwanese-made.

Safety

An optical light curtain guards the front of the tools, and side panels close off the working area.

Installation

The machine needs a 380 V, 50 Hz three-phase four-wire supply (±10%), an ambient temperature of 0–45 °C and 20–75% relative humidity without condensation. It should stand away from strong vibration sources, electromagnetic interference, dust and corrosive gases. Sheets should be flat, uniform and clean before bending.