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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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Will Post Cure Inflator Machinery Ever Die?

Few weeks back, I shared Jacob Peled’s presentation ‘The Future of Tire Plants’ and more recently, ‘Visions of the Future’ on our LinkedIn Page. On reading, an industry friend asked me this question – ‘Will Post Cure Inflator Machinery Ever Die?

While Jacob’s presentation envisions the shortening of curing time by use of higher temperatures and pressure, automation, development of bladder, materials etc, there have been no specific mention of Post Cure Inflators.

So where did this question rise from, I was curious.

Historically, the process of Post Curing Inflation has seen its popularity rise and fall at different time intervals. Tyre technology has been evolving to embrace increased efficiency at all stages of manufacturing. And Post Curing Inflation is not really an energy efficient process, reasoned my friend clarifying the basis for his question.

So, what is Post Cure Inflator Machinery?

Post Cure Inflator (PCI) machinery cools the tyre under pressure immediately after it has been cured.

post-cure-inflator-tire-machinery

Image: L&T Make Post Cure Inflator

For the tyre, this stage involves mounting them on the flanges, inflating it and cooling it according to a selected procedure. You may do this for one or two cycles (Note: one cycle is equal to the time taken for one curing cycle) depending on the specification arrived at for the time your cured tyre takes to cool down to room temperature.

Types of Post Cure Inflator Machinery

There are two types of Post Cure Inflator machinery, viz. Automatic and Semi-Automatic, in the market for use with tyres of passenger cars, light trucks, trucks and off-the-road equipment.

  1. Automatic Post Cure Inflator units are installed at the rear of tyre curing presses, to receive the cured tyres from the curing presses. The tyres are cooled to ambient temperature under controlled air pressure to avoid distortion of plies. After cooling, tyres are discharged onto the takeaway conveyor rollers. Post Cure Inflators are available in 2-position and 4-position designs, which allow for inflation time equivalent to curing time and double the curing time respectively.
  2. Semi Automatic Post Cure Inflator units are located in the curing area and cured tyres are loaded into these units. Tyres are cooled to the ambient temperature under controlled air pressure and are manually discharged from these units.

Machinery suppliers offer design features like adjustable inflation, auto/manual rotation, and adjustable bead width. These features enable Post Cure Inflator machinery to also function as a testing stand for secondary, manual inspection of sidewall or runout rejects.

To examine the importance of this tyre machinery further, let’s understand the process deeper.

Post Curing Inflation Process & its Significance

Post Curing Inflation is recommended especially for tyres of nylon carcass construction. This is because nylon has a unique property of shrinking while it is heated.  When you have nylon in your tyre carcass (i.e. the skeleton of the tyre), there is a tendency for it to shrink as you heat the tyre to vulcanize.

Since vulcanizing of the tyre happens inside a curing press, it is not possible for these nylon cords to shrink. This is because there is high pressure inside the tyre which keeps these nylon cords in the stretched condition. But when the curing is completed and you release the pressure inside the bladder, the nylon cords tend to shrink since your tyre is still hot.

To avoid this hot or thermal shrinkage, the tyre is to be cooled under pressure. If you skip this process, the tyres may lose shape or get distorted or have changes in dimensions.

Post Cure Inflator machinery stabilizes the shape of your tyre in production. When you delay Post Curing Inflation, the damage caused would be irreversible and highly undesirable – both for your company’s reputation and customers safety.

If your customer is given a tyre which was affected by Post Curing Inflation delay, its dimensions will be different from normal tyres. This leads to uneven wear, problems to the axle and bearings of their vehicle. The distortion in shape further leads to tyre uniformity problems that adversely impacts the level of comfort and performance of tyres in the highly advanced vehicles. Last but not the least, a distorted tyre is not safe and lead to accidents.  Needless to say, all of the above creates a negative impact on the company’s image and lead to economic and legal implications for your company.

When the design of your tyre construction changes, Post Curing Inflation process allow your tyres to maintain their designed profile and performance characteristics as they reach road temperatures.

Summarizing, while the popularity of Post Curing Inflation process (and hence Post Cure Inflator Machinery) may shift back and forth, this tyre machinery will not die soon.

What do you think?


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How To Select Your Rubber And Tyre Machinery? Insightful Advices From 6 CEO’s

“How To Select Your Rubber And Tyre Machinery?”

This subject question could have volumes written in theory. But today we focus on what the CEO’s advise, distilled down from their experience, expertise, and wisdom.

Your equipment supplier ecosystem includes New Manufacturers, Rebuilders, OEM Suppliers, Pre-Owned Machinery Suppliers and Agent representatives.

So I asked all the CEO’s the same question to give you a true perspective.

“What would you advice on machinery selection to buyers and users of rubber and tire equipment?”

The different views they offered here are not only insightful, they are pertinent, prudent and practical.

Read on in our Special Supplement here….

This special supplement is one of our efforts to give you useful knowledge on-the-go in a concise and timely manner. This topic based micro-editions is in addition to our other initiatives like ‘Know Your Supplier’ that provides you information on the machinery supplier ecosystem.

Watch Video Version of this supplement on YouTube or Download Full PDF Here.


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


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Rubber Machinery Selection Is An Art – Jacob Peled

Rubber Machinery selection is an art by itself and should be done by people who have visions, both technical and commercial, says Jacob Peled, Executive Chairman of Pelmar Engineering Ltd, Isreal in an exclusive interview with Rubber Machinery World.

(Starting this month, I bring to you a new series comprising of interviews with rubber leaders – aptly titled “Know A Rubber Leader in 10 Questions”. I hope you find the wisdom, experience and vision shared here inspirational and energizing.) 

Know A Rubber Leader

Here is Jacob’s full interview reproduced for you.

  1. Hello Jacob. First of all thank you for accepting an interview with Rubber Machinery World and sharing your thoughts. After a degree in Polymer Science and an MBA from Tel-Aviv University, you started Pelmar in 1966 and grew the brand to a revered name in reconditioned and pre-owned machinery, and tooling for the tire industry. Your growth history is fascinating and I have always found you very inspirational in our conversations. So, let me start with a personal question – Was your entry into Tire Industry planned or it just happened? Is there a story that could inspire and motivate the next generation of rubber leaders?

Thank you for your kind words. My entry to the Tire Industry happened as a combination of coincidence and probably hidden motivations. During my studies I worked as a compounder at Samson Tire and Rubber Co., which was a licensor of General Tires at the time. This has given me the first taste of rubber combined of course with a lot of dust, noise and dirt. Later on the same company has commissioned me to carry out a market survey for them, which showed me other sides of this fascinating industry. I have never left since – 49 years now.

  1. In our last communication, you cited that there have been very few changes in tire industry in the last 100 years. To a buyer, this is a surprise because their general perception is that tire technology is revolutionizing fast and leading tire producers compete on technology to garner market share. Could you elaborate on your view for our readers?

Indeed the changes in tire construction and production have not been significant, with the exception perhaps of the invention of radial tires by Michelin and tubeless tires by Continental.  Compounds have also developed to achieve better physical and chemical properties, but with relatively few significant improvements.

  1. How much of this stagnation or lack of change do you attribute to the machinery being used for tire manufacturing?

Tire rubber machinery have attributed to the slow development mainly because the function of machinery developed in the middle of the last century was satisfactory to the tire companies. The high prices of tires, combined with relatively low life expectancy, have caused the stagnation. Significant changes in automation of tire building only started approx. 15 years ago.

  1. At Tire Technology Expo 2014, you pointed out that tire production using the pre-cure method lends itself well to the manufacture of new tyres? Isn’t this unconventional? What changes in machinery would this demand on the shop floor for a tire manufacturer?

My concept at TTE2014 presentation indeed mentioned this as an option. Pre-cured tread achieved better results than virgin tread. This is true in many cases also in hot retreading, particularly on aircraft tires. This leads to the possibility of casings will be manufactured slick and the tread applied later, as per the market requirements. It enables keeping smaller stocks and fast response to customer wishes.  While this idea could be used on all tire sizes, I know that this has already started, but mainly on industrial tire production. The changes on the shop floor would not only be a result of using PCT. We shall see the gradual disappearance of duplex and triplex extrusion lines, as well as large calender lines, which will be replaced by strip-winders and roller-dies respectively.

  1. I observe that environment conservation has always been a subject close to your heart. However, rubber processing has always been and continues to be an energy intensive process with significant wastage. Is it possible to strike a balance? Are the rubber machinery manufacturers doing enough on this subject?

You are quite right. Environmental conservation and recycling have always been close to my heart. In fact, for many years and still true, retreading is the No. 1 recycling method in the tire industry. It is the most effective and economical. True enough, it is not a final solution, but it is the most significant preventer for more scrap tires in the landfills. Tire and rubber machinery and the process in general have traditionally been accompanied by significant wastage. This is changing very quickly in the last 10 years. The rubber machinery producers are paying a lot of attention and results are already there.

  1. What would future tire plants look like?

Tire plants will become smaller and more specialized in certain types and sizes of tires. Part of my answer is in Point 4. I also believe that future tire plants will have no compounding facilities of their own, as mixing would be done by outside custom compounders specialized in these products (similar in a way to what happened to fabric production and dipping).

  1. Which machinery or manufacturing technology, do you foresee, has the potential to disrupt the rubber and tire industry in the next 15 years?

Disrupt is probably not the right term to use. I suppose you mean what machinery will change significantly or disappear? As mentioned above, calender lines and extrusion lines will disappear. This is particularly true for innerliner calenders since innerliner will be replaced by a film, which is already being used by some tire companies.  Passenger tire building machines have already changed and their capacity increased to 35 seconds per tire and they will reach 10 or 15 seconds. This will require a change in curing presses, and particularly shortening curing time. Curing bladders will either disappear or be made to endure thousands of curing cycles.

  1. What do you envision for Pelmar in the next 10 years?

Pelmar will hopefully continue to expand its services to more parts of the world. It will deal more intensively with new machinery made to its design, which is already being done now. It will also be involved more extensively in equipment refurbishment and upgrading.

  1. What level of support can a customer, who desires to set up a green-field project, expect from Pelmar?

The support that a green-field customer can expect from Pelmar is A through Z services starting with engineering, technology transfer, complete plant design or alternatively a line. These will also include assistance in R&D, quality control, testing of end product and a future forecasting and continued assistance. The exception is any commercial activity related to tires, which we refrain from completely as an iron clad principle.

  1. Great! And one last question. What advice on “machinery selection” would you give to buyers in rubber and tire industry?

Machinery selection is an art by itself and should be done by people who have visions, both technical and commercial. Our advice is always to check references, compare technical capabilities and prices.

Download the full interview in PDF here.

I would love to hear your thoughts on this interview.


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