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The Art of Owning and Operating Rubber Calenders

Calendering is one of the oldest rubber processing technologies. This is a mechanical process by which rubber is pressed into textiles (cloth, fabric, tire cord) forming composite sheets.

Rubber Calendering is classified into two based on what you are calendering. Your guiding principle for calender line
operation should be consistency and continuity.

The machinery that helps you do rubber calendering is known as a Rubber Calender and it performs various functions. This is a heavy-duty machinery consisting of two or more rolls that revolve in opposite directions.

Today, you have a wide range of new and used calender purchase options. Choosing the right Calender is important; learning to operate it smartly is equally key for your success with this rubber machinery. This edition covers all these aspects in a descriptive manner.

Calenders_July 2016 Cover

Click on cover to read.

(This digital edition is available on – Youblisher and Yumpu)

Download PDF Here

In addition, we have the ‘Insight’ section that is an infographic on ‘7 Proven Strategies To Methodically Grow Your Business’. I hope you enjoy this issue.

I hope you find this special supplement informative. Let me know.

(Disclaimer: All the pictures and statements in this special supplement are sourced from web or shared by respective companies. All copyrights belong to actual owner. Rubber & Tyre Machinery World does not independently verify them nor will vouch for their genuineness, hence will not be liable for any misrepresented data. The images are used here for representation purpose only.)


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If you are an equipment supplier and would like your organization to be promoted on Rubber & Tyre Machinery World, please see the opportunities on Partner Me or Contact Me at rubbermachineryworld@gmail.com for your customized offering.


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Editor’s Pick: Manufacture of Cold Retreading Material (Part 2)

This is a continuation to Part 1 of this informative article on Manufacture of Cold Retreading Material shared by Dr.S.N.Chakravarty.

Cold Retreading Material - Part 2

Advantages of ‘Pre Cured’ Process:

  1. Precured rubber generally gives more mileage than the conventional rubber due to richer compound, denser tread and flatter profile;
  2. For radial tires, pre-cure retreading is the most ideal process. Radial tire, in its construction, has an inextensible belt. In the conventional retreading process the matrix (rigid mould) should have exact dimensions matching the dimensions of a built radial tire.  Even a small difference in the matrix dimension affects the ultimate performance of the retreaded tire.  But in the case of pre-cure retreading, radial tires are cured in a chamber and not confined to a rigid matrix or mould, hence there is no distortion.
  3. Longer casing life because tire is retreaded in inflated normal road running condition. Thus the casing is not put under tension and over stressed as it happens inside a rigid mould.  (Due to distortion of casing, the number of times a tire can be retreaded with conventional retreading is always lesser than with pre-cure retreading).
  4. Better balancing, due to uniform thickness of tread and better buffing and building techniques.
  5. Better traction due to flatter profile of buffing.

Advantages of Conventional retreading process

  1. More economical (compared to cold cure retreading).
  2. Comparative advantage ( pre cure retreading due to difficulties in setting up franchisees everywhere in case of latter – high investment).
  3. Better aesthetics (compared to pre cure retreading since better finish given to the tire sidewall also).

Tire Retreading Processes 1

Tire Retreading: Salient Features

  1. Since labour is one of the main components of tire retreading in the organized sector, it is more profitable to undertake high value addition business in the organized sector (i.e. retreading of truck and bus, light truck, jeep etc.). Hence, pre cure retreading of other categories of tyres (especially farm, two wheelers etc.) is not as popular.
  2. Retreading, as per international experience, finds greater and ready acceptance in the commercial segment since the main objective is ‘savings’ whereas in the passenger segment the focus is ‘safety’ followed by ‘aesthetics’. Moreover, savings are also very low in passenger segment.
  3. In India, trucks carrying loads above 16 ton and plying on long distance routes do not find operational economy in using retreaded tires. However, trucks and buses plying short distance routes (and loading pattern upto 12 ton) find retreading a more economical option.
  4. The current trend is going in favour of pre-cured primarily due to the following reasons:
  • Better road conditions (with resultant less damage to tire casing)
  • Better driving habits (getting more mileage even from retreaded tires)
  • Overloading is comparatively less
  • Presence of large number of ‘job shops’ for retreading with each specializing in a special part of the process – repairing, buffing, curing etc. being handled by different persons/processors who, over the years, have gained sufficient experience and expertise in conventional retreading.

 

Pre-cured Tread Manufacturing Process

Compound Mixing

Typical Compound Formulation of Pre-cured Tread, Solution and Cushion Gum

 Ingredients Pre-Cured Tread Compound

(phr)

Solution Compound

(phr)

Cushion Gum Compound

(phr)

Natural Rubber ( RMA 4 ) 70 100 100
Polybutadine Rubber (High cis type) 30 0 0
Rubber crumb ( 40 mesh ) 5 0 0
 WT Reclaim Rubber 5 0 10
Peptizer 0.15 0.2 0.3
Zinc Oxide (White Seal) 4 4 5
Stearic Acid 3 1.5 1.5
Antioxidant TDQ 1 1 1.5
Antioxidant 4020 1 0 0
MC Wax 0.8 0 0
Carbon Black N 339 / 220 65 0 0
Carbon Black N 550 0 35 30
Rubber Process Oil 710 12 12 0
Pine Tar 0 0 12
Wood Rosin 0 6 5
PF Resin 0 2 4
MF Resin 0 2.8 0
Insoluble Sulfur 0 0 3
Sulfur 2.3 3 0
Accelerator  NOBS 0.8 0 1
Accelerator TMTD 0 0 0.25
Retarder PVI 0.1 0 0.15
200.15 167.50 173.70

Rubber compound is prepared by mixing rubber with different ingredients like fillers, process oil, activators, accelerators, curing agents, antioxidants etc. In order to achieve desired level of properties of the product. It is necessary to reinforce rubber with different fillers and vulcanize with sulfur with the help of accelerator etc.

Mixing and mastication are carried out in an Internal Mixer or Kneader or Two Roll mixing mill.

Rubber compounding is one of the most difficult and complex subjects to master in the field of Rubber Technology. There is no simple mathematical formulation to help the compounder. That is why compounding is so difficult a task. (More on this subject)

Kobelco Make Mixers

L&T Marketed Kobelco Make Internal Mixers

Principles of Mixing 

Vulcanizable polymers cannot be used without compounding. Various additives like curative system, protective system, reinforcing agents, cheapeners and other process aids have to be mixed to the polymer or polymer blend ‘to make a coherent homogeneous mass of all these ingredients, which will process satisfactory and on Vulcanization will give the product capable of giving the desired performance, all with the minimum expenditure of machine time and energy.’ (More on this topic)

Extruder and Extrusion Process

Extruders are machines, which shape rubber to a profiled strip by forcing it through a die. (More on this topic)

The rubber compound is passed through a hot feed or cold feed extruder to produce rubber blanks of suitable size (width and thickness) for use in the next manufacturing step i.e. curing in a hydraulic press.

BHARAJ MAKE 200MM PIN BARREL EXTRUDER WITH TREAD DIE HEAD

BHARAJ MAKE 200MM PIN BARREL EXTRUDER WITH TREAD DIE HEAD

The extruded and cut rubber blanks are placed in tread dies and cured in a steam-heated hydraulic press at suitable curing temperature and pressure. After the curing cycle is completed cured treads with desired tread pattern are taken out and cooled.

Cushion Gum

A three roll calendering machine is used to prepare “cushion gum” i.e. uncured rubber sheet that acts as an adhesive layer between the pre-cured tread and tyre casing during the pre-cured retreading process.

Cushion Gum Roll

Cushion Gum Roll

The term “to calendar” is defined as “to press between rollers or plates in order to make smooth & glossy sheet”.

Calender can be of two bowl or three bowl or multiple bowl machines which is used for Calender rolls are not perfectly cylindrical but have different shape.

Solution

A solution churner vessel is used for the preparation of cement solution (contact adhesive) applied to the casing and helps provide increased adhesion between the casing and the cushion.

****

Here is a flow chart for you summarizing the production process.

Pre-cured Tread - Production Flow Chart

Dr. Chakravarty can be reached on kpspltd@gmail.com


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Global Approach To Rubber Machinery Technology

Make in India is an initiative launched by the Government of India in 2014 to encourage multi-national and national companies to manufacture their products in India. While this initiative has garnered significant international attention and keenly watched, few Indian machinery companies have been steadily building up their repute with global approach and right technology.

In this special edition of Know Your Supplier’s cover story, we feature one such company Bharaj Machineries Pvt. Ltd., through an interactive conversation with Amardeep Singh, Director – Sales & Projects.

Established in 1982 with a vision, to always produce most advanced and quality machinery for the rubber industry, Bharaj has transformed into a giant machinery supplier. Read the full interview here of how Bharaj’s aspiration to be leaders in their various business segments’ is filled with passion and backed with technology.

KYS Cover-June-2016

Click image to read

(This digital edition is available on Youblisher and Yumpu)

Based in Mumbai, India, Bharaj manufactures and supply high-quality and advanced machinery for the rubber industry. They specialise in rubber mould manufacturing, rubber moulding, extrusion and mixing technology.

They are a preferred choice for many rubber related industries starting from Tyre, Automotive, Sports, Footwear, Pharmaceutical, Aerospace and Specialized Silicon Rubber Industry with exports to USA, UK, France, Canada and many Asian Countries.

Here is a teaser from the interview.

Q) What products and services can a prospective equipment buyer expect when they approach you?

ASB: Yes, we offer complete solutions in rubber mould manufacturing, rubber moulding, extrusion and rubber mixing areas. Bharaj designs and manufactures latest technology rubber machinery that saves power, compact in size, has low maintenance, requires minimum labour through smart automation and are user-friendly. Our prospects can choose from a range of Cold Feed Extruders (Plain/Vent Types), Heavy duty Rubber Mixing Mills, Rubber Dispersion Kneaders, Hot Feed Extruders, Refiner Mills, Cracker Mills, Grinding Mills, Calenders with complete lines, Batch-Off Units, Vulcanizers, Bale Cutters, Conveyors, Stock Blenders, Vacuum Compression Type Rubber Moulding Machines, etc.

Bharaj Machineries

Q) How do you compete technologically on your product offerings? 

ASB: Starting as a small manufacturing unit, today Bharaj Machineries has evolved into a well-respected machinery supplier for the rubber industry in India as well as in the Global Market in the areas of rubber mould manufacturing, rubber moulding, extrusion and mixing technology. We focus on providing high quality machinery at a competitive price. The wide range of quality machinery made by Bharaj is well-accepted worldwide. Our competitively priced equipment performs consistently and we extend prompt back-up. We export to developed countries like USA, UK, France, Canada and many Asian countries. Hence, it is also apt to mention here that Bharaj manufactured machinery are considered as a first choice for many rubber related industries starting from Tyre, Automotive, Sports, Pharmaceutical, Footwear, Aerospace and Specialized Silicon Rubber Industry. Depending on the equipment, we offer quick delivery to our customers. Some of our equipment is delivered in as low as 25 days.

Download PDF of this special edition here

As they pursue global growth, Bharaj management respects and value every equipment buyers’ desire for optimum technology in their production floor. Emphasizes, Amardeep Singh Bharaj,

“We recommend the right machinery with right features that gives our customers the best return on his investment. This means we consult him on equipment selection to match his production process, share layout drawings and take great care to clarify his genuine queries in the most practical manner feasible. Depending on availability, we arrange equipment visits for our prospects either at our 30,500 Sft ultramodern and state-of-the-art manufacturing plant near Mumbai or at any of customer sites.”

I hope you find the contents on this leading rubber and tyre industry equipment supplier, and their global approach to rubber machinery technology, informative .

Below is the rubber machinery supplier info image-card of Bharaj Machineries and their contacts, if you would like to reach them quickly.

Bharaj Info Card

In addition, we have two other knowledge-enriching topics from our portal in the ‘Insight’ and ‘Tips’ sections of this special edition.

Let me know your thoughts.


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If you would like your organization to be promoted on Rubber Machinery World, please see the opportunities on Partner Me or Contact Me at engage@rubbermachineryworld.com for your customized offering.


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How to Solve Issues With Calender Gauge Control? (Part 3)

This concluding part on ‘How to Solve Issues With Calender Gauge Control?’ is a continuation from Part 2 on force induced variations in calendered gauge (or thickness) and focuses on the three tips.

  • Limit the temperature rate of change at all times to a maximum of 3 degrees per minute.
  • Minimize speed changes.
  • Mill management

Rubber Calender Line

3. Limit the temperature rate of change at all times to a maximum of 3 degrees per minute.

Because faster rates can damage or warp the rolls.

The control system on the TCU should be designed and operated to limit the rate of temperature change for each calender roll water circuit to 3 degrees per minute. Faster rates of change do not allow for equalization of mechanical expansion throughout the rolls, bearings, and calender frames. Differential expansion can stress various components of your calender. In extreme cases, they can actually crack or warp the rolls, or even damage the bearings.

Heating usually is limited by the available heating capacity but the cooling system frequently has the capacity to rapidly cool the rolls and therefore also has the potential to cause damage if not limited to 3 degrees per minute.

Again, it is important to keep the calender running during warm-up and during cool down. Stopping
the calender and turning off the TCU circulation pumps before the calender reaches ambient is not considered good practice.

If the temperature control system has rate of change limits properly set, cooling down is easy, since all the operator must do is to lower the temperature set points to ambient and then 60 to 90 minutes later return back to the operator console to turn off the TCU.

4. Minimize speed changes.

Because changes in your calender speed result in gum wall gauge thickness variations that are undesirable. 

When the calender is running there are forces generated that try to separate the rolls, as explained earlier. And these
separating forces are proportional to calender speed (although the relationship is not linear).

The hardness of your rubber stock and bank temperature determines the magnitude of separating forces. The
thickness of the gum wall being calendered also affects the separating force – thinner gum walls generate higher separating forces. Separating forces of 160,000 to 300,000 lbs at each actuator literally stretches the calender frame. When the forces vary, the amount of stretch varies. This further results in the roll-gap varying that in turn causes the gum wall gauge to vary.

Hence,  speed changes should be avoided to the extent practical. A speed reduction from 45 mpm (meters per minute) to 9 mpm can result in a gauge decrease of approx. 0.002 inches. Similarly, the vice-versa holds for a gauge increase with roll speed increase.

Calenders are of different types. And different calendars have different degrees of frame stiffness so the quantum of the gauge change for a given speed change will vary accordingly.

5. Mill management

Maintain consistency

You can substantially reduce gauge variations by feeding the calender consistently.

A consistent, uniform, dwell times on the cracker and feed mills, as well as consistent bank size, will give consistent rubber stock temperatures and work history. The stock temperatures, bank sizes, and work history directly influence calender roll-separating forces.

When you minimize variations in these 3 important process parameters, you will minimize variations in roll separating forces, and this in turn will minimize gauge variations of your calendered sheet.

Further, good mill and bank control practices also give improved uniformity for other final calendered gum and/or fabric properties.

When you feed to the calender, you must also ensure that the rubber bank does not have areas that could stagnate. Because, if rubber remains in the bank on the calender for an excessive amount of time it will partially cure and become much harder. Edge trim process that returns to the bank and stagnates is a common source of this problem.

Such cured and hardened compound will introduce gauge variations as well as negatively influence other properties of your calendered material. In extreme cases, burnt lumps will appear in the calendered gum.

Presence of hard stock makes it difficult to properly penetrate the cord and may cause cord disturbance and improper cord distribution.

In such cases the cushion force causes lateral movement in the nip and this further results in cord displacement that is visible. Paired cords are often the first indicator. You will observe that the calendered thickness will be heavy and there will be cord displacement or irregularities. However, the weight of test samples will not be significantly affected.

Localized cord disturbance in cord distribution does not usually affect fabric weight, whereas redistribution of the cord does. Overall cord distribution problems can affect fabric weight in the case of fabric calenders.

Rubber Calender Collage 1

For example, incorrect cord distribution may reduce the average EPI (Ends Per Inch) in the center of the fabric and increase the EPI (Ends Per Inch) on the outer edges. This will affect fabric weight and thickness – the weight of the center would be light, while the outer edges would be heavy.

In steel cord calendering, visible cord displacement and cord pairing after the cushion nip is to be expected in the areas where the cord EPI count is excessive.

What do you think?


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How to Solve Issues With Calender Gauge Control? (Part 2)

Continued from Part 1, this post is on force induced variations in calendered gauge (or thickness).

Force Induced Variations

Force induced variations result from the way your calender is operated. This is also an outcome from previous process steps such as your feed mill operation and compound consistency from rubber mixing.

The separating forces generated during calendering are quite high! For example, if you have a 66 inch calender roll and producing 60 inch wide rubber sheet, the separating forces are in the range of 72,575 Kg (approx. 160,000 lbs) to 136,000 Kgs (approx. 300,000 lbs) at each actuator.

Such high forces literally stretch your calender frame. Variations in these forces will therefore vary the amount of frame stretch and thus vary roll position and calendered gauge of your rubber sheet.

Calender-From-Comerio

Here are FIVE tips on how you could solve issues of calender gauge control from force induced variations.

  1. Keep the rubber calender running
  2. Increase the temperature by 5 degrees Celsius when you stop the rolls.
  3. Limit the temperature rate of change at all times to a maximum of 3 degrees per minute.
  4. Minimize speed changes.
  5. Mill management

Let’s examine each one.

1. Keep the rubber calender running.

Because stoppages cause your calender rolls to become egg-shaped, that in turn introduce significant gauge thickness variation.

When you stop the rubber calender, the heat loss from the rolls is not uniform around their surface. Heat loss along the face of the rolls near adjacent rolls is minimal, while heat loss in other areas that are open is higher. This differential heat transfer leads to different temperatures on your calender rolls. And therefore different degrees of calender roll expansion.

If you have a calender with rolls that is 24 -30 inches in diameter, even a few degrees of expansion will result in “out-of-roundness” of each roll that you can measure. This is true when the calender is empty but even more so when there is a hot bank of rubber between the rolls. If you stop the calender for longer period, this condition worsens further.

Your calender rolls run at different speeds. This means that periodically the high and low spots on the rolls match up. When high spots of adjacent rolls match up, you get thin gauge spots on your calendered sheet. When the low spots match up a thick spot is observed. So calender stops induced variation results in an effective doubling of any roll “out-of-round” or run-out error.

Typical short-term thermal out-of-round gauge variations are (+/-) 0.0005 to .002 inches. Though thermal run-out is gradually reduced as the calender runs, it takes 15 to 25 minutes for variations to be eliminated.

Experts recommend you to adopt the following steps to minimize “thermal run-out” of rubber calender,

  • Keep the calender running during warm up. If not done, severe thermal run-out can be introduced. You need to remember that the calender nip gap between adjacent rolls will be reduced as the rolls enlarge with their temperature increases. So, a good practice is to open your rubber calender at least 0.10 inches (2.54 mm) before starting to increase the roll temperature above ambient. Keeping the calender rolls turning during warm-up and cool-down also eliminates the possibility of warping the rolls.
  • Minimize calender stops.
  • When you stop the calender for longer time, remove the rubber from the banks. This is a good operating practice for the rubber compound as well.
  • When leader is going thru the calender, dropping off tension and allowing the uncoated fabric or leader to go slack will permit running the calender during delays and personnel breaks. This will dramatically reduce thermal run-out.
Calendar line

A Calendar Line at Bharaj Machines

2. Increase the temperature by 5 degrees Celsius when you stop the rolls.

Because this helps to maintain a more uniform roll surface temperature.

You need to realize that the TCU (Temperature Control Unit) of your rubber calender controls the temperature of the water exiting the rolls and not the ‘roll surface temperature’. This is an important distinction.

Visualize these two scenarios –

Scenario 1 – When the calender is not processing rubber (i.e. during warm-up and when the calender is stopped), the roll surface is losing heat to the atmosphere. Here, the TCU is actively heating the water loop. In this condition the roll surface temperature is below the water temperature.

Scenario 2 – When the calender is running and processing rubber, heat is being generated. Here, the TCU is cooling the water loop. In this condition the roll surface temperature is above the water temperature.

From the above, you will realize that for a constant water circuit temperature, the roll surface temperature swings (above & below the water temperature) between the calender normal running condition and when the calender is stopped. This difference in roll surface temperature means that your rubber compound is being processed under varying conditions. Shrinkage and other properties of your processed compound will therefore vary.

To minimize the differences from such processing condition variations, the roll temperatures should be increased whenever the calender stops. The temperature increase should be gradual. Your specific value should be experimentally determined by comparing roll surface temperatures in normal operation and after the calender has been stopped for 20 minutes.

In the concluding Part 3, you will see more on the other tips

  • Limit the temperature rate of change at all times to a maximum of 3 degrees per minute.
  • Minimize speed changes.
  • Mill management

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How to Solve Issues With Calender Gauge Control? – Part 1

Calender Gauge Control related variations was first in the list of of my earlier post 8 Common Defects In Rubber Calendering. Calender control issues directly affect your ability to properly control the rubber gauge or to produce a rubber sheet of consistent thickness. Rubber Calendering is the mechanical process by which rubber is pressed into textiles (cloth, fabric, tire cord) forming composite sheets.

While these sources are closely related, for quicker understanding, you may visualize and attribute the two main sources of variations in calendered gauge (or thickness) as,

  1. Mechanical Induced  – variations when your calender is not operating under any load and is at ambient conditions.
  2. Force Induced – variations when your calender is in operation or is programmed to follow a set-process for your product under manufacturing.
Tyre Cord Calender Line From Bharaj

India’s First Fully Automatic Tyre Cord Calender Line From Bharaj Machineries.

In this post, I will touch on Mechanically Induced Variations

Mechanically induced Calender Gauge variations relate directly to your rubber calender’s mechanical condition. Thus it’s basically a maintenance issue. While there are many maintenance issues that could affect your calender performance, the following FIVE directly effect your rubber sheet’s calendered gauge

  1. Grind Profile of Calender Roll (Roll Crowning)
  2. Eccentricity of Calender Roll or Run-out at Ambient Temperature
  3. Condition of Calender Roll’s Bearings
  4. Condition of Calender Roll’s Water Passage
  5. Condition of Calender Roll’s End Actuator

Let’s briefly examine each one.

  1. Grind Profile of Calender Roll (Roll Crowning)

You must periodically grind the calender rolls to establish the proper profile. Your selected crown profile is based on
the range of your rubber compound hardness, type of center compensation such as cross-axis or roll bending, and roll width.

The forces that separate the rubber calender rolls to bend apart in the center are partially compensated for, by grinding the center to a larger diameter. When the grind profile is incorrect it will be difficult or even impossible for you to achieve a consistently flat-calendered rubber sheet.

2. Eccentricity of Calender Roll or Run-out at Ambient Temperature

Your calender rolls must be round and free of run-out at ambient temperature. Any run-out of the individual calender rolls will be amplified as the high spots and low spots periodically match up between the roll pairs. You can easily check this with dial indicators when the calender is running without rubber and with a small nip gap between the pairing rolls.

3. Condition of Calender Roll’s Bearings

You must ensure that your Rubber Calender roll bearings does not have excessive run-out. Excessive bearing clearance will result in the roll shifting during operation because the roll separating forces vary. This could appear as calender roll surface run-out and will adversely affect your ability to control calendered gauge.

4. Condition of Calender Roll’s Water Passage 

Most modern calenders have drilled rolls. A drilled roll has water passages across the roll face beneath their surface. These water passages effectively forms a radiator-like heat exchanger around the periphery of your calender rolls.

In an event when these passages become plugged, then non-uniform heat transfer will occur. And this results in a thermal ‘out-of-round’ condition for your calender roll which subsequently has has the same effect as if the rolls were machined ‘out-of-round’.

You may avoid this situation by using only treated water and ensuring that the rolls are periodically flushed. You could also can check this condition by comparing the roll run-out or eccentricty at ambient temperature with that at normal operating temperatures of your Calender.

5. Condition of Calender Roll’s End Actuator

Of the different variants – manual, motor-driven and hydraulic nip gap adjustments – electric screw actuators are the most common type of calender roll end-positioning-system. The screw and nut operate under very high loads and thus, you will observe, that they experience significant wear even with proper lubrication. As these actuators wear, backlash develops.

When the backlash increases, the response to small changes or corrections deteriorate. Further with increased backlash the number of corrections required would increase, which in turn causes additional wear.

Rubber calenders that have fixed speed electric motors with mechanical brakes require periodic maintenance, particularly the brakes. Because sticky brakes will adversely affect your gauge control results.

Summarizing, proper maintenance of all the above systems is crucial to your rubber calender performance and solve issues with calender gauge control that are mechanically induced.

Mechanically Induced Variations in Calender Gauge

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Do you agree?

(In Part 2, we will cover the force induced variations)


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Practical Modern Solutions For Tyre And Rubber Industry

Change is inevitable. Changes in the business environment happen all the time. The economy fluctuates up or down on a daily basis, frequently causing businesses to alter the way they operate. New competitors enter the marketplace while others leave. Advancements in technologies, products and innovation lead to change in a business environment.

Sustaining and innovating amidst changes is the hallmark of exemplary leadership. Pelmar Group has been displaying dynamic leadership for the last 50 years! Hence, in this special edition of Know Your Supplier’s cover story, we showcase for you Pelmar Engineering Ltd., the Practical Modern Solution Providers For Tyre And Rubber Industry.

We understand from our conversation with Jacob Peled, Founder and Executive Chairman, that Pelmar had three consecutive record years. And is now planning expansion of both its commercial and technical activities in Israel and worldwide.

It’s not easy to achieve three record years consecutively handling a range of activities that include pre-owned machinery, new equipment, complete engineering services, raw materials, military technical rubber production, technology transfer, M&A activity and more. Because, this requires efficiency and focus.

Don’t miss our main interview to know how Pelmar has been consistently outperforming customer expectations year-on-year.

Know-Your-Supplier-Pelmar-May-2016

Click on the image to read

(You may read this digital edition either on Youblisher and/or Yumpu platform.)

An anecdote shared by Peled in his own words that I choose to mention here.

“I was asked a question yesterday evening by one of the persons I admire most in the industry, Michael Labbe the Managing Director of Rema TipTop, how could I and Pelmar cope with handling so many various subjects efficiently at the same time. He referred mainly to Pelmar handling pre-owned machinery, new equipment, complete engineering services, raw materials, military technical rubber production, technology transfer, M&A activity and more. I did not have a proper answer.

This morning I had breakfast with the technical director of one of the major Tier 1 tyre companies, who asked me how could I with the size of our Group, with the international spread, with the diversity of functions handle only one industry, the tire and rubber industry. I tried to explain that tire and the technical rubber industry are separate, but found myself mumbling.

The worst thing about the above is that both questions are absolutely correct and in place. The only answer that I can think of is that because we are handling “just one industry” we can and should be involved in as many aspects of this industry as possible.”

Pelmar Engineering Ltd.

Identifying and capitalizing on the opportunities swiftly along with thirst for growth has helped Pelmar diversify their expertise, spread reach globally and offer single-stop shop total solutions for rubber and tyre industry.

Additionally, on this digital edition, we have two knowledge-enriching topics from our portal aptly titled ‘Insight’ and ‘Tips’ sections.

Download PDF of this special edition here

I hope you find the contents informative to learn more about this leader in rubber and tyre industry.


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