4 Roller Bending Machine

4 Roller Bending Machine - SC SHENCHONG

4 roller bending machine is suitable for the rolling and forming of metal sheets. It can roll circular, arc-shaped, and conical workpieces within a certain range, and has a pre-bending function at the end of the sheet. The remaining straight edges are small, and the work efficiency is high. 4 roller plate bending machine can also roughly level the metal sheets.

The upper roller position of the four roll plate rolling machine is fixed, while the lower roller moves upwards in a straight line to clamp the steel plate. Adjust the curvature radius of the drum by moving the rollers on both sides in a straight or curved line upwards. The roller motion forms of the four roller plate rolling machine and three roll plate rolling machines are different, but the working principle is the same. Both use the principle of three-point circle determination to roll with different radii. However, the straightness of the pre-bent edge and roundness of the correction circle of the four roll plate bending machine are better than those of the three roll bending machine.

W12 CNC 4 Roller Bending Machine For Sale

Model	Plate Length (mm)	Min.diameter= top roller Φ×5		Min. diameter= top roller Φ×(1.5~2)		Top roller (mm) dia	Bottom roller (mm)	Side roller dia. (mm)	Main motor (Kw)	Rolling speed (m/ min)	Machine Size（LxWxH） (mm)	Weight（ton）
													without prebend	with prebend	without prebend	with prebend
													W12-12×2000	2000	12	9		6	220	200	160	7.5	3-5	4500×1500×1400	5
													W12-16×2000	2000	16	12		8	260	240	200	11	3-5	4100×1700×1800	6.7
		W12-20×2000	2000	20	16								12	280	260	220	18.5	3-5	4600×1950×1900	9.6
W12-25×2000	2000	25	20		16		310	290	250	22	3-5	4800×2000×2000	11.3
W12- 30×2000	2000	30	25		20	360	330	270	30	3-5	5100×2100×2000	13
W12-8×2500	2500	8	6		4	220	200	160	7.5	3-5	5000×1500×1400	6
W12-12×2500	2500	12	9		6	250	230	180	11	3-5	5100×1500×1400	7.1
W12-16×2500	2500	16	12		8	280	260	220	15	3-5	5100×1950×1900	10.2
W12-20×2500	2500	20	16		12	330	310	250	22	3-5	5300×2000×2000	12
W12-25×2500	2500	25	20		16	360	330	270	30	3-5	5600×2100×2000	15
W12-30×2500	2500	30	25		20	390	360	290	37	3-5	5600×2250×2100	18
W12-40×2500	2500	40	35		30	470	440	380	45	3-5	6100×2550×2700	25.5
W12-50×2500	2500	50	40		35	510	480	410	55	3-5	6100×3100×2700	36
W12-60×2500	2500	60	50		40	560	530	450	75	3-5	6500×3200×3000	48
W12-6×3000	3000	6	5		4	220	200	160	7.5	3-5	5500×1500×1400	7
W12-8×3000	3000	8	6.5		5	250	230	180	11	3-5	5600×1500×1400	9
W12-12×3000	3000	12	9		6	280	260	220	15	3-5	5700×1950×1900	12
W12-16×3000	3000	16	12		8	330	310	250	22	3-5	2900×2000×2000	14
W12-20×3000	3000	20	16		12	360	330	270	30	3-5	6100×2150×2000	17
W12-25×3000	3000	25	20		16	390	360	290	37	3-5	6100×2250×2100	20
W12-30×3000	3000	30	25		20	410	380	320	45	3-5	6300×2500×2400	23
W12-35×3000	3000	35	30		25	470	440	380	45	3-5	6600×2550×2700	28
W12-40×3000	3000	40	35		30	510	480	410	55	3-5	6600×2600×2750	39
W12-50×3000	3000	50	40		35	560	530	450	66	3-5	6600×3200×3000	51
W12-60×3000	3000	60	50		40	650	620	520	75	3-5	7000×3300×3400	74
W12-70×3000	3000	70	60		50	700	670	550	90	3-5	7200×3500×3600	89

4 Roller Plate Bending Roll Features

CNC control, digital readout for position of each rollers. High accuracy and precision circle.
The upper roller is fixed as the active force roller, while the lower roller and the two side rollers (also known as the active force roller) move up and down through hydraulic drive, tightening the steel plate. The two side rollers move closer to the upper roller to adjust the bending radius of the drum.
The pre bent straight edge is small, and the roundness of the calibration circle is good. It can roll conical workpieces with full generatrix.
The ability to roll small circles is strong, making it the most efficient and capable plate rolling machine.

4 Roller Plate Bending Roll Advantages

With CNC controller, very easy to operate, rich shape bend.
Full hydraulic drive, high efficiency and energy saving, the drive power is equivalent to the traditional 60%.
Once forming, the productivity is higher 50%-80% than three roller bending machine.
Aligning the material is convenient and accurate, avoid the wrong side phenomenon.
It is easy to connect with automatic carrying, feeding and unloading device.

CNC Plate Rolling Machine Main Structure

1.Drop end cylinder 2.Drop end 3.Left frame 4.Upper roll 5.Side roll 6.Lower roll 7.Right frame 8.Balancing system 9.Upper roll driven device 10.Lower roll driven device【optional】 11.Side roll cylinder 12.Lower roll cylinder 13.Bottom frame 14.Side support system【optional】 15.Top support system【optional】 16. Electric feeding electric roll【optional】 17.Hydraulic system 18.Electronic control system

4 Roller Plate Rolling Machine Configuration

Material Of Working Roll

Working rolls are made of high-strength high-quality steel 42CrMo material, after forging, roughing, quenching and tempering, HB240 ~ 300, finishing after the intermediate frequency quenching HRC47-58, according to JB/ZG4289-86 roll steel standards, the stiffness is consistent (1/700 ~1/1000) L. The distance between the centerlines of the sides rack. And strictly in accordance with the working process of manufacturing all the standard roll manufacturing, to ensure its comprehensive mechanical properties.

Bearing At Both Ends Of The Working Roll

The four rollers rolling machine adopts very durable double-row self-aligning roller bearings recommended by the industry for each roller.

Hydraulic System

For SC 4 rollers plate bending machine, each oil circuit is routed with two relief valve to control pressures. The one is mainly to control the main cylinder pressure, and the other one is mainly to control the overturning cylinder and balancing cylinder pressure.

In order to ensure the synchronization accuracy of the main oil cylinders at both ends of each moving working roll, high-precision displacement sensors are installed on the left and right racks and the tilting frames. Through the pressure sensors, the microcomputer control system detects and adjusts the movements of the main oil cylinder pistons to achieve the precision of the both working roll ends.

Rack And Base

The base and frame are the main parts of the equipment. SC SHENCHONG plate rolling machine frame selects high-quality steel, uses CNC cutting, grinding and welding, and then sends the welded structural parts to the professional heat treatment factory for stress relief annealing—CNC lathe machining, eliminating welding stress, so that it has enough strength and stiffness, to ensure normal operation at full load. All records of the workpiece are included in the quality tracking system.

CNC Controller

SC 4 roller plate rolling machine control system is equipped with an automatic rolling program, which can realize one-button operation. It can automatically roll and roll once at a time. It also has data number, storage and recall functions, and can store hundreds of data. Various specifications of automated rolling. The system is compatible with manual operation programs and can be manually operated when needed.

Why choose SC?

Professional 4 Roller Plate Bending Machine Factory

As a 4 roller plate rolling machine manufacturer, SC SHENCHONG has more than 25 years plate rolling machine production experience, and we have more than 20 years exporting experience. During the years of design, manufacturing, service, we provide stable high quality CNC plate rolling machine and fast respond after-sale.

Automation (optional)

CNC four rollers bending roll is suitable to connect with automatic feeding and unloading system to improve the plate rolling efficiency. SC has the professional engineers to design and install the automatic plate rolling machine production line for customers.