Product Made in Japan

Manufacturer: KURIMOTO

Kurimoto’s proven high-precision end bending features bring precise circularity to desired application.

KURIMOTO’s Bending Roll is Top Roll Horizontal Movement type. Value added features of KURIMOTO’s Bending Roll, such as Top Roll crowning and adjustable Back-Up Rolls enable to achieve precise circularity and cylindricality to application with wide range of material thickness

Features

NC Control

Amount of Top Roll Ram Down is automatically calculated by inputting application data, which reduces workers operation.

High-Precision End Bending

Being formed in the procedure that Top Roll moves Front/Rear direction, the ends of the material plate are firmly bended as well as the one done by ordinal press.

Precise Circularity and Cylindricality

Top Roll Crowning and adjustment of Back-Up Roll help correcting deflection of both Top Roll and Back-Up Rolls to be more precise circularity and cylindricality of applications, which reduces time of post procedure.

High Rigid Mechanical Structure

Frame is rigidly designed based on pressure capacity and width of application materials. Top Roll Ram- Down mechanism and rigid & compact lower frame simplify foundation construction.

Energy Saving and Eco-Friendly

While the unit is not loaded, inverter control minimizes pump unit motor output and reduces Electricity Consumption of pump unit motor.

User-Intuitive color touch panel

Achieves precise circularity and cylindricality to both large and small diameter application.

Application

Pressure Vessel (Compression tank) manufacturing

Heavy machine parts manufacturing

Ship and Ship Parts manufacturing

Stainless tank manufacturing

Specially equipped vehicle parts manufacturing

Bending Method

Conventional 4-Roll Bending Process

The Problem:

• Straight sections always remain at the leading and trailing edges of the rolled sheet.
• While an experienced machine operator can partially correct these straight sections, no machine yet has been able to eliminate them completely.

Kurimoto’s New 3-Roll Bending System

The Kurimoto’s sytem uses a top roll that changes position during the bending operation to produce leading and trailing edges formed to almost 100% perfect curves. The result? A rolled form with almost perfect concentricity – right down to the edges. How is it done? A computerized control system continually sets both the height and horizontal position of the top roll during the bending process. It’s all automatic, so anyone can operate the machine.
Concentricity check after bending shows almost 100% accuracy in the cross section of the curve.

 

Post processes after conventional 4-roll bending

Processes required after Kurimoto 3-Roll Bending:

Easy Operation

The computer-controlled Kurimoto system offers simple “one-touch” operation.

Just input the material type, thickness, width and product diameter.
No experience needed.
Anyone can operate the machine first time, any time.

Material

Plate Thickness

Plate Width

Product diameter

Optimum Bending

Precise and Highly Uniform Roll Formed Products

Kurimoto uses a high-strength backup roll that allows the system to form sheet metal of any thickness into perfectly straight cylindrical forms. Welding time is significantly shortened after rolling.

Thick plates are rolled into perfect cylinders.		Thin plates are rolled into perfect cylinders.

Specifications

Achieves simplified operation

Proven NC Control system ensure precise bending result which used to heavily rely on worker’s experience and know-how, by inputting details of application.

Every workers can operate KURIMOTO Bending Roll easily by inputting material, thickness, width and inner diameter of application without particular work experience.

NC Control

Semi Automated type(TNC) is recommended for Various kind but low-volume production
Fully automated type(CNC) is recommended for Various kind with high-volume production
Top Roll travel and Ram-Down are automatically calculated by inputting details of application so unexperienced application can be processed easily in a short time.

Portable machine

Main cylinders for Top Roll are designed as to press down application, and reduce lower frame height so material loading height remains low.
Frame is rigidly designed so anchor bolts are not required to install machine.

M series pressure capacity 25～60 tons
MP series pressure capacity 75～430 tons
M series pressure capacity 490 tons
500 ～ 8,000mm width plate is available to offer.

Maximum plate thickness is calculated based on the yield point 255N/mm2 standard.

Capacity （ｘ9.8ｋN)	Plate thickness （mm）		Plate width （mm）	Roll diameter （mm）		Bottom Roll Pitch （mm）	Electric Motor （kW）
	End bending	Central bending		Top Roll	Bottom Roll		Drive	Hydraulic	Movement
（MJ） 25	6 4.5	8 7	1500 2000	175 195	125	160	1.5	1.5	Oil Hydraulic Motor
30	6.5 5.5	8.5 7.5	1500 2000	185 205	125	160	1.5	1.5	Oil Hydraulic Motor
37	8 6 5.7	10 8 8	1500 2000 2500	205 220 235	135	180	2.2	1.5	Oil Hydraulic Motor
45	9 7.5 6.5	11 10 9	1500 2000 2500	215 235 245	135	180	2.2	1.5	Oil Hydraulic Motor
55	8 8 7	11 10 9.5	2000 2500 3000	245 255 275	145	200	3.7	2.2	Oil Hydraulic Motor
65	10 9 8	13 12 11	2000 2500 3000	250 265 280	145	200	3.7	2.2	Oil Hydraulic Motor
（MP） 75	12 10 9	15 14 12	2000 2500 3000	255 270 290	150	245	3.7	2.2	0.75
100	13 11	16 15	2500 3000	300 325	165	270	5.5	3.7	1.5
130	16 14	19 18	2500 3000	330 350	180	300	5.5	3.7	2.2
160	18 16 14	22 20 18	2500 3000 3500	360 375 390	200	330	7.5	5.5	2.2
190	21 19 16	26 22 19	2500 3000 3500	380 400 410	220	360	11	5.5	3.7
230	25 22 19	29 27 25	2500 3000 3500	410 425 440	235	380	15	7.5	3.7
270	28 25 22 20	33 30 28 25	2500 3000 3500 4000	430 450 470 490	250	400	15	7.5	3.7
320	30 28 25 22	36 32 30 28	2500 3000 3500 4000	460 480 500 520	260	420	18.5	7.5	5.5
380	35 32 28 25	39 35 32 30	2500 3000 3500 4000	500 510 530 550	275	460	22	11	5.5
430	40 35 32 30	43 40 40 36	2500 3000 3500 4000	520 540 560 580	290	500	30	11	5.5

Our machine can also be manufactured according to other than this specification. Contact us for more details.

We have satisfied result following case, plate width is 8m and plate thickness is 100mm.

This specification is subject to change without prior notice.