CNC Tandem Press Brake

Tandem Press Brake are used to press metal plate. With different dies, it could make various work-pieces, which are widely used in aero-plane , ship, auto, engineering machinery, electricity rod, transformer and other relative lines.

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2-PB6 Series CNC Tandem Press Brake Machine
The series machines are used to press metal plate. With different dies, it could make various work-pieces, which are widely used in aero-plane , ship, auto, engineering machinery, electricity rod, transformer and other relative lines.
The machine is driven by hydraulic pressure and controlled by CNC. It could attain quick down, slow-down of ram, pressure steady while working, quick returning and intermediate stop functions. Also, it could be driven as inch, single & continuous ways. It could be operated either single or double ways.
The frame is welded by steel plate of good rigidity and strength.
The ram run smoothly. Reposition precision, anti-eccentric load, work-pieces made precision are high because the use of circulation around servo control against CNC + electrical-hydraulic proportion valves linear encoder.
The press in air and the one of different angles are available. The crowning device which is built into the table and controlled by CNC attain the precise deflection compensation.

Main structure and performance of the machine
1. All parts of the machine use CAD/CAE/CAM software to design so as to ensure the strength and rigidity of each part.
2. This machine is hydraulic upper driven.
3. The machine is mainly comprised of machine frame, working table, ram, main oil cylinder. The perfect design and manufacturing technology can ensure the manufacturing and using precision of machine. The technological procedures of main parts are as follows (please see Fig.1,2,3 separately for the structure stress design analysis of uprights, working table, ram)

Steel plate to warehouse →physical & chemical inspection→ steel plate ball blasting (dustproof) processing → cutting through CNC flame cutting machine → cutting and processing to each welding junction plane → compound welding→ Air protecting welding → Vibrating aging treatment →processing through heavy-duty floor type boring and milling machine, heavy-duty gantry milling machine → fabrication
4. The machine is the frame type structure, whose the installing faying surfaces of oil cylinders, lead rails, working table are processed at one time work-holding through the technological procedures of heavy duty floor type boring and milling machine so as to ensure the parallelism and perpendicularity for each installing faying surfaces.
5.The lead rails of machine uses the advanced self-lubrication material, which do not need the regular lubrication and care.
6.The moving and positioning of left, right oil cylinders are controlled by CNC system (Y1,Y2,Y3,Y4), which is composed by the electrical-hydraulic proportional valves, optical scales, CNC system.
Each axis can be programmed individually, and can be worked under programming so as to get the higher moving and positioning precision when pressing the workpiece.
7.The machine can work separately, also can work in tandem, whose middle is inspected by the linkage card.
8.The machine can work normally under the eccentric loading state because of using the electrical-hydraulic proportional synchronization which can enhance the anti-torque, anti-eccentric-loading capacity extremely. The deformation of working table and ram is very little when pressing because of the higher designing rigidity of working table, uprights, cross-beam and ram. So, the workpiece can get the perfect alignment and same pressing angle.
9.The mechanical deflection compensation mechanism controlled by V1, V2 axes
10.The machine has the motorized front feed mechanism, which is driven by variable-frequency motor.
11.2 sets of Motorized front feeding device driven by frequency conversion.
12.2 sets of back feeding device driven by frequency conversion.
13.Front and back supporting table, each 1 set, on which there are rollers and easy to transport the plate.
14.The machine has the side out-feeding mechanism so as to effect the out-feeding conveniently.
15.CNC system is the suspended operating station which can swing freely within the operating area, which also have the free movable foot/manual buttons.
Please see the Youtube video as following:

MAIN SPECIFICATION

Name Type	MAIN SPECIFICATIONS								Weight (kg）	Overall dim (L×W×H) (mm)
Name Type	Nominal pressure (KN)	Length of table (mm)	Distance between uprights (mm)	Throat depth (mm)	Ram stroke (mm)	Ram stroke speed (mm/s）	Max. open height (mm）	Main motor power (KW)	Weight (kg）	Overall dim (L×W×H) (mm)
2-PB6-100/3200	2×1000	2×3200	2600	320	100	7	320	2×7.5	15	6830×2050×2665
2-PB6-100/4000	2×1000	2×4000	3200	320	150	7	350	2×7.5	18	8430×2050×2665
2-PB6-160/3200	2×1600	2×3200	2600	320	200	8	425	2×15	20.6	6830×2050×2665
2-PB6-160/4000	2×1600	2×4000	3200	320	200	8	425	2×15	26	8430×2050×2665
2-PB6-300/3200	2×3000×	2×3200	2600	350	250	7	500	2×22	52	6640×2625×4435
2-PB6-300/4000	2×3000×	2×4000	3200	350	250	7	500	2×22	55	8640×2625×4435
2-PB6-300/5000	2×3000	2×5000	4000	350	250	7	500	2×22	58	10640×2625×4435
2-PB6-300/6000	2×3000	2×6000	4800	350	250	7	500	2×22	62	12640×2625×4435
2-PB6-400/4000	2×4000	2×4000	3200	400	320	7	630	2×30	68	8640×2625×4435
2-PB6-400/5000	2×4000	2×5000	4000	400	320	7	630	2×30	74	10640×2625×4435
2-PB6-400/6000	2×4000	2×6000	4800	400	320	7	630	2×30	82	12640×2625×4435
2-PB6-400/7000	2×4000	2×7000	5100	400	320	7	630	2×30	86	14640×2625×4435
2-PB6-500/4000	2×5000	2×4000	3200	1100	400	7	1000	2×37	108	8800×2900×5700
2-PB6-500/5000	2×5000	2×5000	4000	1100	400	7	1000	2×37	116	10800×2900×5700
2-PB6-500/6000	2×5000	2×6000	4800	1100	400	7	1000	2×37	136	12800×2900×5700
2-PB6-500/7000	2×5000	2×7000	5100	1100	400	7	1000	2×37	150	14800×2900×5700
2-PB6-650/5000	2×6500	2×5000	4000	1100	400	7	1000	2×55	140	10800×2900×5700
2-PB6-650/6000	2×6500	2×6000	4800	1100	400	7	1000	2×55	150	12800×2900×5700
2-PB6-650/7000	2×6500	2×7000	5100	1100	400	7	1000	2×55	165	14800×2900×5700
2-PB6-650/8000	2×6500	2×8000	6100	1100	400	7	1000	2×55	180	16800×2900×5700
2-PB6-800/6000	2×8000	2×6000	4800	1200	400	7	1330	2×2×30	225	12900×4130×6300
2-PB6-800/7000	2×8000	2×7000	5100	1200	400	7	1330	2×2×30	234	14900×4130×6300
2-PB6-800/8000	2×8000	2×8000	6100	1200	400	7	1330	2×2×30	240	16900×4130×6300
2-PB6-800/10000	2×8000	2×10000	7800	1200	400	7	1330	2×2×30	260	20900×4130×6380
2-PB6-1000/6000	2×10000	2×6000	4800	1600	400	6	1330	2×2×37	275	12900×6000×6300
2-PB6-1000/7000	2×10000	2×7000	5100	1600	400	6	1330	2×2×37	285	14900×6000×6300
2-PB6-1000/8000	2×10000	2×8000	6100	1600	400	6	1330	2×2×37	360	16900×6000×6300
2-PB6-1000/10000	2×10000	2×10000	7800	1600	400	6	1330	2×2×37	325	20900×6000×6380
2-PB6-1200/6000	2×12000	2×6000	4800	1600	400	6	1330	2×2×45	325	12900×6300×6300
2-PB6-1200/7000	2×12000	2×7000	5100	1600	400	6	1330	2×2×45	335	14900×6300×6300
2-PB6-1200/8000	2×12000	2×8000	6100	1600	400	6	1330	2×2×45	360	16900×6300×6300
2-PB6-1200/10000	2×12000	2×10000	7800	1600	400	6	1330	2×2×45	390	20900×6300×6380
2-PB6-1600/7000	2×16000	2×7000	5100	1600	400	6	1330	2×2×55	358	14900×6430×6300
2-PB6-1600/8000	2×16000	2×8000	6100	1600	400	6	1330	2×2×55	375	12900×6430×6300
2-PB6-1600/10000	2×16000	2×10000	7800	1600	400	6	1330	2×2×55	390	20900×6430×6300
2-PB6-1600/12000	2×16000	2×12000	9100	1600	400	6	1330	2×2×55	415	24900×6430×6380