Chamunda Engineering Works

NC Hydraulic Press Brake

Suitable for complex job bending
Quick changeover for sample production & mass production
7'' color touch screen LCD for easy data entry
Two axis atuomatic control - bending degree (Y Axis) & Back gauge (X-Axis) program
Repeatable precise back gauge accuracy 0.1mm
Wireless program data transfer between PC & controller
Optional force control module screen
Multiple bends with different back gauge positions can be programmed

Bend angle programming method
Direct bending degree entry as per job drawing
Depth Mode degree program is also available
The bending edge dimensions can be programmed as per individual bends
Inside & out side edge dimensions can be defined in the program
Automatic Bending degree with correction factor for each bend
Automatic back gauge positions with correction factor for each bend
Optional hardened tools & Manual / Automatic crowning
The programs can be back-up by wireless connection to PC

Metric Technical Specifications Sheet Conventional Hydraulic Press Brake Machine Series
Model	Tonnage(MT)	Bending Capicity.(mm)(MS-UTS 45KG/mm2)	Table Size(mm)	Clear Passing(mm)	Ram Stroke(mm)	Open Height(mm)	Closed Height(mm)	Throat Depth(mm)	Ram Speeds (mm/sec.)			Motor (kw) HP	Overall Dimensions (mm) Approx.			Weight (kg)Approx.
Model	Tonnage(MT)	Bending Capicity.(mm)(MS-UTS 45KG/mm2)	Table Size(mm)	Clear Passing(mm)	Ram Stroke(mm)	Open Height(mm)	Closed Height(mm)	Throat Depth(mm)	Approach	Pressing	Return	Motor (kw) HP	Length	Width	Height	Weight (kg)Approx.
CEWPBR-215	20	1.62 X 1500	125 X 1500	1250	100	250	150	100	40	6	38	(2.2) 3	1800	1500	2000	1500
CEWPBR-320	30	2 X 2000	125 X 2000	1700	100	280	180	200	30	7	30	(2.2) 3	2300	1600	2000	2500
CEWPBR-425	40	2 X 2500	170 X 2500	2000	100	280	180	200	50	6	50	(3.75) 5	2700	1900	2100	3000
CEWPBR-520	50	3.15 X 2000	170 X 2000	1500	100	280	180	200	48	6	48	(3.75) 5	2300	1900	2200	3400
CEWPBR-525	50	2.5 X 2500	170 X 2500	2000	100	280	180	200	48	6	48	(3.75) 5	2900	1900	2200	3700
CEWPBR-625	60	3.15 X 2500	170 X 2500	2000	150	330	180	200	36	5	36	(3.75) 5	2900	2000	2400	3900
CEWPBR-630	60	2.5 X 3000	170 X 3000	2500	150	330	180	200	36	5	36	(3.75) 5	3200	2000	2300	4500
CEWPBR-825	80	4 X 2500	170 X 2500	2000	150	350	200	200	45	6	48	(5.5) 7.5	2800	2100	2400	4500
CEWPBR-830	80	3.15 X 3000	170 X 3000	2500	150	350	200	200	45	6	48	(5.5) 7.5	3400	2100	2400	5000
CEWPBR-1025	100	5 X 2500	170 X 2500	2000	150	350	200	200	38	5	38	(7.5) 10	2900	2200	2400	5600
CEWPBR-1030	100	4 X 3000	170 X 3000	2500	150	350	200	200	38	5	38	(7.5) 10	3400	2200	2400	6200
CEWPBR-1230	125	5 X 3000	220 X 3000	2500	150	350	200	300	30	5	60	(7.5) 10	3400	2500	2600	7000
CEWPBR-1240	125	4 X 4000	220 X 4000	3000	150	350	200	300	30	5	60	(7.5)10	4200	2500	2600	8700
CEWPBR-1630	160	6 X 3000	220 X 3000	2500	150	350	200	300	30	5	60	(11.2) 15	3400	2500	2600	8800
CEWPBR-1640	160	5 X 4000	220 X 4000	3000	150	350	200	300	30	5	60	(11.2) 15	4200	2500	2700	9800
CEWPBR-2030	200	8 X 3000	220 X 3000	2500	200	410	210	300	20	5	50	(15) 20	3500	2700	2700	9500
CEWPBR-2040	200	6 X 4000	220 X 4000	3000	200	410	210	300	20	5	50	(15) 20	4200	2700	2800	10500
CEWPBR-3030	300	12 X 3000	300 X 3000	2500	200	460	260	300	19	5	30	(18.75) 25	3500	2700	2800	12000
CEWPBR-3040	300	10 X 4000	300 X 4000	3000	200	460	260	300	19	5	30	(18.75) 25	4300	2800	2900	15000
CEWPBR-4040	400	12 X 4000	400 X 4000	3000	250	500	250	400	20	5	40	(22.4) 30	4300	2900	3000	18000
Note : Above This Parameters will slightly change in NC version.

Air Bending :
In air bending the dies are made at more of an acute angle (85' or less than the angle to be formed.The only contact between the dies and the material occurs at the male punch and edge of the female die.The material is ''Air'' bend rather than ''Coined'' od ''Bottom'' bend.

The advisable ''Vee'' openings for air bending are:
V= 6 to 8 x Material Thickness (t),When t < 4 KxLxSxt2
V= 8 to 12 x Material Thickness (t),When t > 4

Load, P = KxLxSxt2 \ 1000xV MT

Press Brake Selection Guidelines
Parameter	Unit
Plate Thickness (t)	mm
Ultimate Tensile Strength Of Plate (S)	kg/mm2
Bending Length (L)	mm
'' Vee'' Die Opening (V)	mm
Minimum Internal Radius ( R )	mm
Minimum Flange (H)	mm
Bending Correction Factor (K)	1.3
Required Tonnage (P)	MT
The Force required for air bending can be calculated from the formula: