LVD HPB 320

The LVD PPEB (Precision Press Brake) series uses LVD's electro-hydraulic synchronization with higher-accuracy position control, achieving better ram repeatability (typically ±0.01-0.02 mm vs ±0.05 mm for the HPB). The PPEB also includes LVD's Easy-Form Laser in-process angle measurement on premium configurations. The HPB 320 uses a more conventional torsion bar synchronization at lower precision but similar tonnage. For heavy structural work where material variation limits practical bend angle accuracy anyway, the HPB 320 is adequate and typically less expensive. For precision sheet metal at high tonnage, the PPEB is the better specification.

At 320 metric tons across 3,200 mm, the HPB 320 bends mild steel (Rp0.2 = 250 MPa) up to approximately 12-14 mm on the full working length using standard die widths. On shorter bend sections of 1,000 mm, the concentrated force allows bending 25-30 mm mild steel. High-strength steel (Strenx 700) at equivalent thickness requires approximately 2.5x the force of mild steel -- so the HPB 320 handles Strenx 700 up to approximately 5-6 mm on the full length. The CADMAN-B control calculates required force automatically.

Yes. The HPB 320 includes a 6-axis CNC backgauge as standard equipment. The backgauge covers X (depth), R (height), and Z1/Z2 (individual left and right finger positioning) at minimum, with additional axes depending on configuration. The CADMAN-B control programs all backgauge movements as part of the bend program, repositioning automatically between bends. For heavy parts on a 320-ton machine, optional sheet followers and part support arms are available to assist operators handling large, heavy plates.

Cincinnati Machine (US) offers comparable tonnage hydraulic press brakes in the 300+ ton class. Key differences: (1) LVD uses CADMAN-B control while Cincinnati uses their own CNC; (2) LVD has stronger European distribution and support; (3) Cincinnati has stronger North American installed base and parts support; (4) Both use conventional hydraulic architectures at this tonnage class. For North American shops, Cincinnati's service network advantage is significant. For European operations, LVD's local support is superior. Both are proven heavy-tonnage hydraulic machines.

The HPB 320 weighs approximately 28,000 kg and requires a reinforced concrete foundation rated for the load, with LVD-specified anchor bolt placement. Electrical requirements are 400V 3-phase (480V in North America) with approximately 55 kVA continuous demand for the hydraulic pump motor. The machine also requires hydraulic oil (typically 200-300 liters for a machine of this scale) and may require oil cooling depending on ambient temperature and production cycle. Floor loading must be evaluated by a structural engineer before installation.