F - SERIES
Four Roll Plate Bending/Rolling Machine
Unmatched capacity. Superlative precision. Optimal turnout.
Ensures extremely longer life of hydraulic system
Future-ready machines, ready to integrate and automate
Excellent and important feature at no extra cost
Precision Manufacturing Aided By High Quality Assurance
Stronger, durable performance with extremely precise bending
Experience Easy-To-Use bending Capabilities
Our top-of-the-line Four Plate Roll Bending/Rolling Machines are designed for hassle-free usage and energy saving features; to ensure peace of mind and operational ease for heavy plate rolling jobs.
Himalaya’s linear guided machines deliver a multi-fold advantage to your fabrication infrastructure - a remarkably efficient and lasting performance, an unbeatable edge bending precision, reduced capital expenditure, and lower ongoing operational and maintenance costs.
ADVANTAGES OF
Four Roll Design
Roll Movement in Four Roll Design
1
2
3
4
5
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These Plate Bending/Rolling Machines have four rolls and liner guidance for the side rolls.
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The Top roll remains fixed, the bottom roll moves vertically and the two side rolls move in liner guide way to form the shell.
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The top and bottom rolls are power driven by planetary gearboxes with hydraulic motors (in some capacities).
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Thin Plates need closely spaced rolls to avoid driving slippage.
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Location of the bottom roll directly below the top roll ensures very good grip on such jobs.
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Due to the high productivity of low thickness shells, the four roll machines prove to be an attractive investment for mass production of pipes and shells.
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Over and above the cones, other non-circular shapes like oil tankers & elliptical shells can be made.
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This type of roll configuration also facilitates CNC operation.
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20-30% higher Investment for the same thickness capacity and span compared to similar three roll machine.
Himalaya’s Four Roll Plate Rolling Machines deliver par performance and flexibility. They are also extremely durable and accurate, and are therefore ideal for medium-to-heavy duty rolling.
F - Series Product Range
Model
Top roll size
Width (Span)
Bottom roll size
Side Roll Size
Rolling
2.5BR
5BR
Pre-pinching
2 T
3 T
Fully Hydraulic Plate Bending Machines
FDC/25
2500
250
250
215
12
14
7
08
FEC/25
2500
280
280
245
15
18
9
12
FGH/25
2500
330
330
270
18
23
12
15
FHH/25
2500
360
350
290
23
28
15
19
FJH/25
2500
400
390
320
28
37
19
23
FKH/25
2500
450
440
370
37
46
23
28
FLH/25
2500
490
480
400
43
52
28
37
FMH/25
2500
540
520
440
50
58
37
43
FDC/30
3000
250
250
215
9
12
5
07
FEC/30
3000
280
280
245
13
16
7
09
FGH/30
3000
330
330
270
14
19
9
12
FHH/30
3000
360
350
290
21
25
12
15
FJH/30
3000
400
390
320
25
32
15
19
FKH/30
3000
450
440
370
32
40
19
25
FLH/30
3000
490
480
400
37
46
23
31
FMH/30
3000
540
520
440
43
53
31
38
* All dimensions are in mm.
* All capacities are as per 26 Kg/mm2 (Yield Strength of Plate Material)
We offer machines with fixed as well as variable speeds according to your application and feed requirements.
Build Quality & Benefits
Sturdy Steel Structure
Himalaya's 4 roll plate bending/rolling machines have a robust steel structure made from heavy metal plates. The frames are connected to each other by a strong box design chassis. The frames have interlocks & strengthening ribs. The roll guideways are machined together utilizing a fixed single reference point which allows for parallelism of all axes and precise surfaces, as well as longevity and precision of the critical characteristics of the machine.
Rolls
The rolls are the most important elements of our machines. Himalaya designs the rolls with optimal diameter and uses forged carbon steel rolls that are machined by high precision CNC lathes. Our rolls have a special spline-based design that is extremely efficient in connecting the rolls with the planetary gear system. This diminishes points of roll failure compared to welded connections provided by other manufacturers.
Crowning
Our rolls are crowned to compensate for roll deflection during the bending process. Custom crown-machined rolls for different materials or thickness can be selected when ordering.
Hydraulic Gear System
Additional energy saving is ensured in our Four Roll machines by a hydraulic system which can work at less than full capacity when jobs less than maximum thickness are rolled.
Himalaya Planetary driving system ™ used in our machines is efficient and eliminates energy wastage associated with heavy-transmission systems and yet achieves the goal of speed reduction by increasing the stages in gears and pinions.
Operational Benefits
Pre-Pinching (Pre-Bending)
Edge bending can be done before or after shell rolling depending on operator skill and choice. Thin plates can be rolled and edge-bent in a single pass.
Easy Cone Bending
The cone bending process with the K series is simple. The bottom rolls need to be inclined to achieve cone bending geometry. This is controlled and monitored by electronic microprocessor (on some models).
Our control system also ensures easy and accurate return to parallel setting after cone bending resulting into precision on repetitive jobs.
High Productivity
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State-of-the-art in forming cylinders and cones.
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Easy to install, extremely user-friendly and convenient to service.
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Simple to learn and operate. No extensive operator training required.
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Robust construction reduces wear & tear.
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Readily available spare parts.
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Tropicalized oil cooling system ensures non-stop operations in hot working conditions.
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Easy to understand hydraulic and electrical system reduce unwanted down time.
Versatility
Other than cylinders and cones, other non-circular shapes like oil tankers and elliptical shells can be made using a PLC version.
Economy
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Due to the exceptional build quality, failure-resistant linear guideway design, high operational precision and a wide range of jobs that can accurately rolled, the F series machines prove to be the most attractive investment for any type of industry, regular production or a job shop.
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Due to a variety of accessories that are available to enhance the machine capability, the investment is justified in more than one way. The energy saving features and negligible maintenance cost also promise a low running cost.
Additional Features
Alongside our excellent design and build quality, we provide the following additional features and accessories upon request from our client.
1
Surface-Hardened Rolls
Induction Hardened Rolls having Surface Hardness between 42 to 55 HRC for additional durability and longevity.
5
Tilting Table
Tilting tables for support while feeding plates at specific angles. Specially useful for plates of larger lengths.
2
Complete Windmill Tower Manufacturing Package
Including central and side shell support, tilting conveyors, hardened rolls and PLC/CNC capabilities
6
Conveyors
Powered Conveyors that provide ease of plate feeding in case of longer plate lengths, improved machine performance and longevity.
3
Central & Side Shell Supports
Central & side shell supports provide ease of operation, operational cost saving and productivity while increasing safety of workers.
4
Hard Chrome Plated Rolls
Hard chrome plated rolls for special applications in Pharma and Dairy Industry.
7
8
PLC Control
PLC Controllers provide precision, ease of operation, while identifying needs for preventive maintenance to increase machine life and optimize productivity.
CNC Control
We are in the process of developing CNC system for the Four Roll Machine.
The HIMALAYA Advantage
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What is done to compensate for deflection of rolls during pre-bending and rolling?All rolls are crowned (cambering) for compensating deflection.
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What is the arrangement provided for balancing of top roll when swing arm is opened?Top roll is counter balanced automatically once the drop end is opened without any jacks or manual arrangement.
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Is there any method to know the position of bottom rolls?DRO (Digital Readout) is housed on the operating console which gives the position of the bottom rolls with respect to the top roll.
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What is the capacity for cone bending?Cones can be bent up to the edge-bending capacity of the machine. The bottom rolls can be inclined for the required cone angle.
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What is the level of protection for electrical components?Some of the electrical bough outs are IP 55 like motors, switchgears etc. The electrical cabinet will be manufactured as per our standard practices and will meet IP 55 protection.
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Is the main drive reversible?Forward and reverse to the main drive is provided. The bottom rolls can be moved up and down individually.
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What is the type of oil required?Hydraulic oil – Enklo 68 Planetary Gear box – EP 90
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Where are the main machine controls?Operating console houses push buttons for all the operations of the machine. The console is movable so that the operator can keep it at any desired location.
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Can we bend hot plates on the machine to get higher thickness capacity?Although the standard machine is not meant for hot rolling, occasional hot rolling can be done (a few jobs per month) provided that suitable precautions are taken.
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Some plates have high yield point (YP). The rolling capacities are rated for 26Kg/mm2. How to find the equivalent thickness?Divide the Actual YP by 26. Find square root of this number. Multiply this value by actual plate thickness to get effective thickness.
Enjoy the peace of mind that you are in good hands.
FAQs
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What is done to compensate for deflection of rolls during pre-bending and rolling?All rolls are crowned (cambering) for compensating deflection.
-
What is the arrangement provided for balancing of top roll when swing arm is opened?Top roll is counter balanced automatically once the drop end is opened without any jacks or manual arrangement.
-
Is there any method to know the position of bottom rolls?DRO (Digital Readout) is housed on the operating console which gives the position of the bottom rolls with respect to the top roll.
-
What is the capacity for cone bending?Cones can be bent up to the edge-bending capacity of the machine. The bottom rolls can be inclined for the required cone angle.
-
What is the level of protection for electrical components?Some of the electrical bough outs are IP 55 like motors, switchgears etc. The electrical cabinet will be manufactured as per our standard practices and will meet IP 55 protection.
-
Is the main drive reversible?Forward and reverse to the main drive is provided. The bottom rolls can be moved up and down individually.
-
What is the type of oil required?Hydraulic oil – Enklo 68 Planetary Gear box – EP 90
-
Where are the main machine controls?Operating console houses push buttons for all the operations of the machine. The console is movable so that the operator can keep it at any desired location.
-
Can we bend hot plates on the machine to get higher thickness capacity?Although the standard machine is not meant for hot rolling, occasional hot rolling can be done (a few jobs per month) provided that suitable precautions are taken.
-
Some plates have high yield point (YP). The rolling capacities are rated for 26Kg/mm2. How to find the equivalent thickness?Divide the Actual YP by 26. Find square root of this number. Multiply this value by actual plate thickness to get effective thickness.
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