Pracsol Chemicals & Machinery is into trading of Machinery, Raw Materials and Chemicals since 2007 and is growing in reputation in machinery business. We understand from our conversation with Harish Nene, Chief Executive, that in the last 4 years they have secured landmark orders for Used Machinery from Indian Rubber and Tyre industry. In this conversation, Harish Nene outlines on a wide array of his business right from the genesis of his company name to his experiences in rubber and tyre industry,partnership with JM Machinery USA, successes and new products on the anvil. Harish also informs us the unique service proposition Pracsol offers to their customers, their competence and comprehensive range of rubber machinery offered to buyers.

1. Know Your Supplier
Rubber Machinery
& Accessories
Pracsol Chemicals & Machinery
MM
RUBBER Rubber
Machinery
World
Special
Edition
In Conversation With
Harish Nene, Chief Executive Ofcer
‘Practical Solutions’ on Equipment
Simplified

3. MM
RUBBER Rubber
Machinery
World
Articles,
Interviews,
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& More http://rubbermachineryworld.com
AUTHENTICINFORMATIONTOSOURCEMACHINERYWISELY
FROM RUBBER TO YOUR FINAL PRODUCT
MANUFACTURE WITH THE RIGHT MACHINERY
Weekly Digest
From the
Editor’s
Desk
Hi
At , we understand the informationRubber Machinery World
requirements of industry stakeholders, hence our theme “From
Rubber To Your Final Product – Manufacture With The Right
Machinery”.
Our effort on this portal has been to share authentic information
to help you source your machinery wisely. This effort remains
incomplete without notes on equipment suppliers.
Hence, series is an advertorial initiative‘Know Your Supplier’
to provide you information on the machinery supplier ecosystem
- Manufacturers, OEM Suppliers, Machine Rebuilders, Used and
Pre-Owned Equipment Buyers Suppliers, and Agents - from
whom you buy your rubber and tire equipment.
In Know Your Supplier editions, we cover a equipment supplier’s
Competency, Capacity, Commitment, Culture, Communication,
Market Presence, Technology other details that you seek; so
you know these organizations better and reach them quicker.
In this edition, we cover , a‘Pracsol Chemicals Machinery’
rising Indian Company that is fast building on its rising confidence
and customer trust to extend practical equipment solutions
to the industry. Also included is a special article ‘Internal Mixer:
7 Quick Tips About Batch Weight Calculation’ from our portal.
I welcome your feedback on rubbermachineryworld@gmail.com
Regards
Prasanth Warrier

4. 2011
Sale of a Reconditioned F270 to Tega
Industries amidst tough competition
from established suppliers.
2014
Secured order for supply of 84inch
Reconditioned Four-Roll Calender
(Presently under reconditioning in
USA)
Supply of Machinery to overseas
manufacturing units of a Indian
customer.
2015
Secured order for supply of New Batch Off
to a client in Europe. (Under Execution)
4 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
Pracsol At A Glance
Started in
2007
Trading
Machinery,
Chemicals
Raw Materials
5
Major Revenue
Partnerships
Both
USED NEW
Equipment
40+
Equipment
Supplied
7+
Global Brands
As Customers
HQ
Thane (Mumbai)
India
24 Hours
Response
Time
70%
Repeat
Customers
Value-Add
Freight Clearing
Services
Serving
Indian
Tyre Rubber
Industry
Few Milestones
2012
Key role in helping a Indian client procure 96 inch
Calender Line from Czech Republic

5. 5 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
Pracsol Chemicals Machinery is into trading of Machinery,
Raw Materials and Chemicals since 2007 and is growing in
reputation in machinery business.
We understand from ,our conversation with Harish Nene
Chief Executive, that in the last 4 years they have secured
landmark orders for Used Machinery from Indian Rubber
and Tyre industry. Pracsol is now fast building on this rising
confidence and customer trust to extend practical equipment
solutions to the industry in new machinery as well.
of International Trade hands-on
sweating it out in JNPT (Nhava Sheva
Port – Mumbai) with the CHA's and
Customs Officials. I handled commercial
aspects for my employers importing
raw materials, chemicals and machinery
for setting up their projects in India. In
this process, I became aware of the
simple negligence on documentation
that companies make while importing
their equipment. This resulted in delays
for clearing shipment and loss from
additional costs (penalties, demurrages,
etc). I knew I had an opportunity to make
a difference.
During this period in 2007, I met Michael
Dyer at an expo. Michael owned JM
Machinery and was selling used
equipment from USA. We discussed the
prospects of promoting his machinery in
India and we clicked together. I did brief
him with my experience. After verifying
my credentials through his friends in
India, we reached an agreement and I
settled in this Industry. Looking back, I
would say that I was fortunate to meet
Michael at right place and at right time.
Since then we have sold many used and
reconditioned machinery in Indian
market.
Harish, you come from a dif-
ferent background. How did
you choose Rubber and Tyre
Machinery as an area of your
business?
Yes. I am a Graduate of Bombay
University with Post Graduation
in Central Excise Customs. For
over 12 years, I learnt the ropes
Pracsol is a strange name. What
is the story behind this name?
Pracsol is derived from the words
‘Practical Solutions’. Through my
experience of last 20 years in
International Business, I would
state that solution for a problem is
possible if looked at it practically
not by just following procedures.
Pracsol is derived from the words
‘Practical Solutions’.
- Harish Nene
Pic: Row of Reconditioned Mixers at JM Machinery Plant in USA

6. 5 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
experience specializing in the rubber and
plastics machinery field. They have seen
what works and what doesn't. They are
approved supplier and rebuilder to the
world's major tyre companies.
Machinery is examined by experts before
transactions. At Pracsol, we are available
for almost 14 hours in a day to our
customers and normally respond within
24 working hours or even less when
buyers contact. Our repeat customers
know that we do error free documentation
and give prompt status updates on their
machinery purchases. Apart from
providing excellent used and reconditio-
ned machinery for the rubber and tyre
industry in India; we provide to our
customers all services under one roof
from procurement till the consignment
reach their manufacturing unit.
Purchasing machinery is a major
investment for most buyers and they
would need technical inputs and
customization. What level of pre-sales
support do you offer?
We provide all the important technical
details about the machinery with
photographs. Through JM Machinery, we
can aid in design and engineering from
concept thru completion of the desired
machine.
If the customer insists on Physical Verif-
ication Report then physical verification
is carried out by our principals' engineers
and a report is provided. The client has
the liberty to visit for physical verification
if the machines are available at our
warehouse in USA.
How about service?
JM Machinery can provide field-service for
rebuilt machinery worldwide. In addition,
our availability for 14 hours and Inter-
Continental timings make the difference.
We respond within 24 working hours.
doing business with Private
Companies is easier than doing
business with Public Limited
Companies.
What are the major strengths
of Pracsol? How do you add
value to equipment buyers in
the rubber and tyre industry?
Used equipment can be a bad
investment for buyers if not
handled well. Hence, our
principals or we ourselves do
not buy and sell machines that
do not work.
JM Machinery has over 40 years
Having started in 2007 how has
been your experience so far in
this industry?
Business Ethics, Honesty, Hard
work and Transparency is import-
ant. Customers who do business
with me recognize that they can
expect these from me and have
helped me succeed in the rubber
and tyre industry. I also have
good support from my principal
company. This makes things
simple and gives me time to
focus on delivering value to
customers. From my last 7 years
experience, I would opine that
Pic: A Mixing Mill Under Reconditioning
Pic: A Fully Rebuilt 4-Roll Calender At JM Machinery, USA

7. We have over 40 years experience
specializing in the rubber and plastics
machinery field. We have seen what
works and what doesn't. We are
approved supplier and rebuilder to
the world's major tyre companies.
- Michael L. Dyer
liter mixers, 100” mills, 21/24 inch
extruders, and 2000 ton presses.
How do you compete technol-
ogically on your products to
offer?
We strive to keep up with the
latest advances in all aspects of
our rebuilding and manufacturi-
ng techniques. We send our
electricians to seminars, classes,
and training on the latest PLC’s
and control functions.. Our
welders are constantly
upgrading our hard surfacing
techniques and materials. Our
employees are urged to take
advantage of our company
policy of paying for any class
pertaining to their field of work.
is the end resultJM Machinery
of 40 plusMichael L. Dyer's
years of service in the Rubber
Industry. He brings the experien-
ces of design engineering, shop
assembly foreman, field service
technician, and salesman to his
business. His knowledge of the
industry, it's people, and the
machinery and processes used in
it is unsurpassed. Here’s what
Michael adds:
What are your manufacturing
infrastructure and capabilities?
Can a potential buyer look at a
long-term partnership with you
for their flexible as well as
scalable requirements?
We can handle up to 50 ton piece
with our cranes and lifts. Our
machine tools are constantly
being added to and size range
ever expanding. We currently are
building from lab equipment to
production equipment from 370
Pic: Overview of Mixer Spares (Left) and Three-Roll Calender under Rebuild (Right) at JM Machinery
What challenges are you tackling today
to improve customer service and
enhance their overall satisfaction?
The flood of cheaply made machinery
from low grade materials has given the
industry a false reading of pricing. Our
typical late model rebuilt machine weighs
50% more than most of the new
equipment coming out of China or Taiwan.
There is no substitute for ‘good metallurgy’
at the core of the machine, metal that will
render a machine unaccepting of a rebuild
is quite common in the cheap stuff. The
customer today finds themselves being
offered machinery from different
continents, at a wide range of prices. We
have established a worldwide network of
trustworthy associates, and can offer
customers our stability and experience.
.......Contd on Page 11
JM MACHINERY

8. 8 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
Competencies
• Procurement, Trading Supply of Used/Pre-Owned for Tyre/Rubber
and Plastic Industry
• Reconditioning of Used Machinery for Tyre/Rubber and Plastic Industry
in India USA
• Trading in Raw Material: Reclaimed Rubber, Off Grade SBR, Off Grade BR,
Repro PE Resin, Thermoplastic Elastomer (TPE) Modifier, Alternative to
EVA
• Goodyear Tyres, Aurangabad
• Balkrishna Tyres, Mumbai
• Tega Industries, Kolkatta ( Group Companies Overseas)
• Falcon Tyres, Mysore
• Oriental Rubber, Pune
• NRC Industries, Amritsar
• Northland Rubber Mills, New Delhi
• Bony Polymers, Faridabad
• Parker Markwel, Hyderabad
• Karam Industries, Punjab
• Mewat Tyres, Rajasthan
• Ryder Transinternational, Indore
• Nalin Rubber, Jamshedpur
• Prime India Polymix, Faridabad
• Hi-Tech Rubber Moulds Pvt. Ltd, New Delhi
• Matangi Rubber, New Delhi
• Super Floorings, Yamuna Nagar
• RPG Poly Vinyls, New Delhi
• Marvel Vinyls, New Delhi
• Canadian Vinyls, New Delhi
• Triveni Rubber, Thane
• Kiran Rubber, Mumbai
Our client list speaks for itself
- Harish Nene
Pic: Reconditioned Press (Left), Lab Mill (Center) and Lab Mixer (Right)
Pic: 24 inch Three-Roll Reconditioned Calender

9. 9 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
Pic: A Fully Rebuilt Mixer Body At JM Machinery, USA
What's your approach towards
communication? How easy is it for your
existing customers and future buyers to
reach you and exchange relevant
information?
We are easily approachable and our client
list speaks for itself. We are available for
almost 14 hours in a day to our customers
and normally respond within 24 working
hours or even less when buyers contact.
My contacts including my mobile number,
skype and email id are displayed on our
website. We provide all the important
technical details about the machinery with
photographs. If the customer insists on
Physical Verification Report then physical
verification is carried out by our principals'
engineers and a report is provided.
Prospective genuine buyers can visit our
warehouse in USA for physical verification
of the machines if available. Our repeat
customers know that we do error free
documentation and give prompt status
updates on their machinery purchases.
Are you launching any new
products?
We are targeting the rubber
industry in Europe USA to
export our range of new
machinery from India. We have
recently bagged an order to
design, manufacture and
supply a NEW BATCH OFF for
Europe. This is expected to be
despatched by end of
September 2015.
How do you ensure that you
deliver high quality product
and services to your customer?
What processes do you have in
place to ensure consistency of
quality/meeting deadlines?
Rightly asked. Dealing in USED
MACHINERY there are advantages
and disadvantages. The risk factor
for the client is limited to the
normal wear and tear while
buying used machinery because
almost all the aspects are checked
by us prior we buy the machine. If
the machine needs to be
reworked to the extent of
changing important parts, the
work is done and only then offer-
ed to the client. After all it is the
question of repute and no one
would like to tarnish their own
image.
Adds Michael, that after a
complete rebuild with original
standards as the blueprint, a
complete testing with video is
supplied. Deliveries are impor-
tant, but quality does happen
quickly, or by itself. Perfection
is the goal.
We have recently bagged an order for a new
Batch-off for Europe.
- Harish Nene
Pic: Batch Off Work In Progress

10. Practical Solution
www. .comracsol
Please contact us to discuss your machinery
requirements for
Ph: +91-9819602323
+91-22-25420466
RELATIONSHIP IS ABOUT TRUST, WE VALUE IT THE MOST
Tire, Automotive Profiles, Foam Rubber,
Medical, Shoe, Conveyor Belting,
Custom Mixing, Roofing, Vinyl Flooring
General Rubber Goods Industries,
and Plastic Sheeting Industries
Harish Nene
Skype: harish.nene
Pracsol Chemicals Machinery
3,Chaitanya, A.S.Road, Near Ahilyadevi Garden,
Charai, Thane 400601. Maharashtra. India.
www.pracsol.com
10 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
How do you differentiate yourself as well as
compete on price of your products?
As I mentioned before, we take great care to
supply only working equipment to our
customers. It involves examining by experts,
replacing worn out parts wherever required
and arrange for physical verification wherever
required. We still go further to do error free
documentation of the consignment and provide
to our customers single-window services from
procurement till the consignment reach their
manufacturing unit. Used machinery supplied by
us represents exceptional value for money. Hence,
we have over 70% repeat buyers in the last 3 years
who are fully satisfied.
Used machinery price is definitely lower than new
one. We negotiate the price and finalize the order.
Equally, we see to it that we do not end up in Loss.
Our principal says, “Not to sit on the iron and wait
till we get our target price. Rather reach a win-win
situation through discussions and negotiation with
the client.” So we do not lose any order on price.
After all, some meal is better than no meal.
What changes do you see happening in the
machinery industry? How are you positioning
and preparing Pracsol for these changes?
The demand for USED MACHINERY will always
be there and we have the capacity to invest
in buying good machines. At Pracsol, we are
focusing on expanding our market. We are
targeting the rubber industry in Europe and USA
to export our range of new machinery from India.
We have recently bagged an order to design,
manufacture and supply a NEW BATCH OFF for
Europe. This is expected to be despatched by
end of September 2015.
Pic: A Fully Rebuilt Pin Type Cold Feed Extruder
For Used Machinery, our
readiness of loading in containers
is within 20 days of receiving
advance payment.
- Harish Nene

11. Contd from Page 7.
What is your advice on equipment
selection to buyers of rubber and tyre
machinery?
Quality requires a certain level of pricing.
Do not fool yourself into thinking the
lowest price supplier is going to meet the
higher priced standards. Quality is never an
accident, it requires intelligent planning
and execution. We offer Quality!
We offer Quality!
- Michael L. Dyer
JM MACHINERY
Did You Know? In 80% of B2B transactions today, the customer finds the supplier - not the other way around.
11 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
Pic: Mixing Mill
Pic: Three-Roll Calender (Left) and Spare Calender Rolls With Bearings (Right)
2. PRODUCT ZONE Edition
Promoting One Product At A Time...Differently.
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Know Your Supplier
Rubber Machinery
Accessories
Pracsol Chemicals Machinery
MM
RUBBER Rubber
Machinery
World
Special
Edition
In Conversation With
Harish Nene, Chief Executive Ofcer
‘Practical Solutions’ on Equipment
Simplified
KnowYourSupplierRubberMachineryWorld
©2015 – Special Edition by Rubber Machinery World (Aug 2015)

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Rubber Machinery World provides authentic information on various
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industry to wisely source the right machinery.
Partnering with this portal helps equipment suppliers to stay ahead of the competition,
tapping new markets, innovating and louting traditional modes of thinking, strategies
that require you to break free from the status quo.
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Marketing, Communications Business Development Consultant, Speaker and Business
Leader. He has been regularly writing on machines and featured in various rubber
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13. 13 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
Internal Mixer: 7 Quick Tips About Batch Weight Calculation
Internal mixer is standard
rubber machinery for volume
mixing in both tire industry
and non-tire rubber industry.
When you use one, your most
elementary requirement is to
calculate the batch weight for
your respective mixer model.
Because when mixing rubber
compounds, you should under-
stand that different compounds
based on the same polymer
might require different batch
weights.
And different polymers will
almost certainly require different
batch weights.
Here's 7 quick tips for you to fix
the batch weight for your rubber
mixing.
1) Theoretical Equation
The thumb rule is the theoretical
equation
W= NV x SG x FF, where
W - Batch Wt [kg];
NV - Net Mixer Volume [dm³];
SG - Specific Gravity (density) of
the mixed batch [kg/dm³];
and
FF= Fill Factor.
Generally, most mixer manufact-
urers share this calculation with
you. But remember, what they
give you is only a theoretical
number. This is only a starting or
reference point and you need to
arrive at your own mixing batch
weight for your compound recipes,
following some of the other tips
stated below.
pressure on the compound, poor
dispersion and longer mixing
times. Annual measurements of
chamber are recommended to
update your batch weight correctly.
Excessively worn out mixers will
have to be rebuilt or reconditioned
(Read our posts on mixer rebuilding
- Top 25 Things You Should Know
to Discuss with Mixer Rebuilder and
17 Essential Questions to Select the
Right Rebuilder for your Internal
Mixer)
3) Guesstimate the Fill Factor (FF)
If you have a Tangential Mixer (aka
Banbury) , then your FF can range
between 0.70 and 0.85. And for a
When the mixer is used regularly (or if you have
procured a used-mixer) the effective volume
Increases due to wear on the rotors and mixing
chamber.
2) Net Mixer Volume (NV)
Since Internal mixer has a
fixed volume mixing chamber,
knowledge of the net volume
(in liters) is required. This can
be obtained from the manuf-
acturer directly or in some
cases from their literature for
their various models.
When the mixer is used
regularly (or if you have proc-
ured a used-mixer) the effective
volume increases due to wear
on the rotors and mixing
chamber. If not compensated
for this inside wear, your batch
volume will be effectively too
small leading to insufficient ram
A Fully Rebuilt Mixer by JM Machinery.

14. 14 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
Intermeshing Mixer (aka Intermix),
your FF can range between 0.62
and 0.70.
Knowledge of the fill factor is
necessary because an under-filled
mixing chamber results in the ram
bottoming out too soon. This
reduces the pressure on the rubber
stock and increases the mixing time.
An over-filled chamber leads to
unmixed ingredients staying in the
mixer throat. This creates a mess
under the mixer when the batch is
dumped.
For example, NR-rich compounds
in an intermeshing mixer have a fill
factor of around 0.65 while for the
same compound in a two-wing
tangential mixer, it is about 0.75. This
compound will have an increased FF
of about 0.78 for a tangential mixer
with four-wing rotors. Each polymer
also has its ideal fill factor and that
varies again with Mooney viscosity
and filler system.
Fill factor of a mixer depends on the
age of the machine, wear and tear of
the rotors and chamber, the rotor type,
rotor speed, rotor friction ratio, nature
of elastomer, ratio of elastomers/fillers,
mixing sequence, kind of polymers,
fillers and individual SG of the
ingredients in your recipe, viscosity of
ingredients, etc. Generally, the lower
the compound viscosity, the fill factor
is higher.
Hence, we initially guesstimate the FF
before stabilizing on the figure later
on through actual trials.
4) Estimate the Specific Gravity (SG)
of your Compound
You can estimate the density of your
compound by multiplying the quantity
of each ingredient with its
individual density (you can
get this figure in any
compounding handbook
or ingredient supplier lite-
rature). Sum up your
individual results and then
divide this number by the
total sum (usually phr). The
result will give you the
estimated density of the
compound. (Mathematically,
this is the weighted average
calculation).
For example, lets consider a
sample recipe as shown
above (I got this recipe from
a web search).
Calculating, the SG of this
Compound mix is arrived at
1.16 (=179.3/155).
5) Know your Internal Mixer
Knowing your internal mixer -
its capabilities, design features
like rotor (tangential or
intermeshing), ram (pneumatic with
dedicated air supply at the plant or
hydraulic), variable speed capabilities
of the motor, SCADA, PLC, automati-
on and control features, etc.
Rotor speeds are critical because you
can use higher speeds at the initial
mix and then reduce the rotor speed
to allow the batch to knead well.
This will allow you to get both your
dispersion and distribution tasks of
mixing right. Hence, when selecting
a mixer explore variable speed drives
since it give you advantage in your
mixing process.
(If you are planning a new purchase,
read and download our
Questionnaire for Internal Mixer
Selection).
Similarly, think of ram pressure. If
your ram pressure is too high you
will cause excessive heat build up
and poor flow of ingredients across
the rotor tips. In intermeshing mixers,
this will also cause internal pressure

15. 8 Know Your Supplier - AUG 2015| Pracsol Chemicals Machinery |
within the mixing chamber and might
cause mixer failure. If ram pressure is
too low, then you will not get the
ingredients down into the rotors and
this will result in poor mixing.
6) Watch the Ram Action
After the above reference calculations
are done and mixing initiated; watch
the ram action during the mix. The ram
should start high, move up and down
about an inch or two and bottom out
when mixing is complete. Good mixing
practice dictates that when the ram
bottoms out about 30 - 45 seconds
before the batch is dumped, you can
be assured that the chamber is properly
filled and mixed compounds will be of
high quality.
You need to observe the position of the
-ram by watching the tell-tail rod attach
ed to the top of the ram. Hence, this
requires more of practice and
experience than theoretical knowledge.
If you have a good mixing system with
controls and feedback features, you can
correlate the position of the ram with
the current and rise in temperature -
these are important to get an optimized
batch size and high quality of mix.
7) Optimize Your Mix Batch Size
(...Do Not Maximize)
The key to successful mixing is optimizing
your mix batch size, and not
maximizing. And good mixing
is a form of art.
Most mixer users want to get
the most out of their internal
mixer (quite natural!) and they
test its capabilities to the full.
Finally, when they get poor
mixing, they wonder if they
have done the right
investment!
If you try to take your batch
size to the upper limits of the
mixer's capacity as specified
in the manufacturer's manual
(that is usually a peak magical
figure) and you have raw
material variations such as
particle size or bulk density
changes in your fillers, this can
lead to poor mixing (dispersion
and distribution of ingredients).
The right batch size will be
smaller, but your internal mixer
throughput is increased by
shorter mixing time and thus
Each mixer is different and it would be very
difficult to determine the optimized fill factor
without actually conducting several mixing
trials. Experience is a key to good mixing.
more batches in the same period.
Thus, optimizing your batch
weight will allow you to get
consistent batch quality and
repeatability that are of
paramount importance to your
(or your customers') downstream
processes.
The key factors that will influence
your mixing optimization are
compound formulation, ram
pressure, mix procedure, mixing
speed and rotor design.
Each mixer is different and it would
be very difficult to determine the
optimized fill factor without actually
conducting several mixing trials.
Experience is a key to good mixing.
Summarizing, when mixing rubber
compounds, different compounds
require different batch weights.
These 7 tips will help you calculate
the optimized batch weight for
your compounding recipes on an
internal mixer quicker.
This article was first published on Rubber Machinery World Portal. You can access the link here:
http://rubbermachineryworld.com/2015/03/17/7-quick-tips-about-batch-weight-calculation-for-an-internal-mixer/

16. Email: rubbermachineryworld@gmail.com
Website: http://rubbermachineryworld.com
©2015 – ePublished by Rubber Machinery World in Aug 2015
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