1. Littleford Day Inc.
Where Processing Ideas become Reality.

2. PVC Compounding Equipment
Integrated Systems for formulation of rigid and flexible PVC Compound
Littleford Day Inc.
Where Processing Ideas Become Reality.

3. Littleford Equipment for the PVC Industry Presentation Index
Compounding
Littleford Equipment for the PVC Industry
Presentation Index
Page Contents
Advantages of the Littleford Equipment for PVC Compounding.
The Selection Process.
Our Mixers.
Our Coolers.
Specifications.
How much do I want?
A Model for each case.
The Ideal Batch Size.
Optimizing PVC compounding.
PVC Cooling rules.
Pellets. Integrated Systems.
W-10 Pilot & Rental Unit
Rental Programs.
Service and Spare Parts.
Process Development and Testing.

4. Littleford Day The Advantages of a Brand.
PVC
Compounding
Littleford Day The Advantages of a Brand.
Larger Productivity. Tons/Hr.
Superior Compound Quality.
Less operation costs.
Experience in PVC compounding.
Direct service throughout America.
Modern Technology.
Insuperable Quality.

5. The Selection Process for PVC Compounders:
Compounding
The Selection Process for PVC Compounders:
Capacity
Type of Compound
Type of Operation
Discharge
Double-Batch Option
Accessory Equipment
Tons./ Month.
Rigid or Flexible.
Manual, Batch or Automatic Operation
Manual or Automatic
Current or Future option.
Loaders and dosifying systems.

6. Our Mixers: PVC PVC Cover: Pneumatic Operation. Vent Bag & Support
Compounding
PVC
Compounding
Cover:
Pneumatic Operation.
Vent Bag & Support
Feeding Inlet Ports.
Manual or Automated
Operations ...
High Strength
Vessels with 1/2”
Insulation, SS-304
Construction
Deflector Blade with
thermocouple & liquids
tube.
Impellers designed for
homogenous Temp. raise,
& High Dispersion.
Coated with Abrasion
Resistant Materials.
Designed to avoid
Over-Heated and
Wearing spots.
Littleford
Discharge Valve:
Pneumatic Operations,
Manual or Temp. Controlled
Perfect Seal to avoid leaks.
Belt Drive with Special High-Torque
motor, reinforced shaft, insulation &
bearings.
One or Two Speeds.

7. Our Coolers: Typical Cooling for PVC: From 240° to 120° F. PVC
Compounding
Feeding, Double Batch and
Vent Ports.
Cooling Jacket designed for high rates of
thermal transference. For 45 PSIG
Reinforced
Shafts and
Drives.
Littleford
Contour discharge Valve
Access ports with safety
limit switches.
Cooling / Mixing Plows designed
to create a fluidized bed & excellent
thermal transference.
Typical Cooling for PVC: From 240° to 120° F.

8. Specifications Of the most commonly used configurations
PVC
Compounding
Equipment W200/K300 W600/K1200 W600/K1600 W1200/K2400
Mixer
Working Cap Lts Lts Lts Lts.
Batch Weight Lbs Lbs Lbs Lbs.
Power /50 o 60 HP /125 o 150 HP /125 o 150 HP 125/250 o 250 HP
Cooler
Working Cap Lts Lts Lts Lts.
Water Req. 15 GPM 35 GPM 35 GPM 70 GPM
Power o 10 HP 20 HP 25 HP 30 o 50 HP
Capacity
PVC - Flexible Kg/H Kg/H Kg/H Kg/H
PVC - Rigid Kg/H Kg/H Kg/H Kg/H
Double.Batch Kg/H Kg/H Kg/H

9. Littleford Day ¿How much do I want? Integral Solutions for PVC Extra
Compounding
Extra
Hoppers
Liquid Addition
System.
CONVENIENCE:
Resin Weight Hopper
FANCY: Minor
Ingredients
Addition Systems
THE HEART: Mixer.
One or Two Speeds
MODERN:
Double Batch Op.
Littleford
USUAL COMPLEMENT:
High efficiency cooler
Littleford Day
Integral Solutions for PVC
Pneumatic
Transport
To Bins

10. A Model for each case:
PVC
Compounding

11. The Ideal Batch Size. PVC
Compounding
Best Output does not mean working the equipment at it´s
maximum batch size, since processing time also increases.
Each case requires an ideal load for optimum performance.

12. Optimizing PVC Compounding:
Single Rule: There is no single rule
First Idea: Add stabilizers and plastisizers once the resin has reached around 60-80° C, for an improved liquid absortion into the resin.
Second Idea: If the liquids are preheated before feeding them, batch time can be lowered up to 1 minute.
Third Idea: Following powders can be added in several ways. If a big load of powder is fed, try to avoid lowering the temperature of the batch, by adding it slowly.
Once all the components have been fed, a 1 to 1.5 minutes final mix is usually required.
THEORY: A proper dispersion is based in adequate Mixing Times & Temperatures.
AN INTERESTING STRATEGY (not to be used in all cases):
1.- Preheat the mixer to 100° C and add the resin at high speed..
2.- Heat the resin to 70-80° C, so it may expand.
3.- Add liquids, if possible preheated to 55° C. Mix until they may be incorporated.
4.- Feed remaining powders and have final mix of 1 to 1.5 minutes.
ATRACTIVE TIPS:
It is important to have a proper vortex. Adjust the attack angle of the internal deflector and mixing blades.
Batch Size: A larger batch size does not necessarily means larger productivity, since mixing times also increases. There is an ideal ratio of Batch Size/ Batch Time which maximizes productivity.

13. PVC Cooling Rules:
PVC
Compounding
PVC is a bad heat transfer element. Tends to keep the heat that got in the mixer. If it is going to be stored, it has to be cooled.
If a cooled water is used (down to 7° C, commonly obtained in conventional chillers), cooling time is reduced up to 50%.
Each case requires a top temperature at the cooler discharge. In order to fully optimize cooling time, work should be done for the maximum allowable temperature (discharging at 46°C against 43°C could mean several minutes).
Tips to optimize cooling: 1.- Avoid moisture condensations inside the cooler by installing a By-Pass valve for the cool water, for periods in which the cooler is not used, to avoid over-cooling.
2.- Periodically clean and wash the cooling jacket Do not over fill the cooler.
4.- As an option, some cool powders, such as filling agents, can be fed directly to the cooler, which greatly reduces cooling time. The mixing action of the cooler plows mix and incorporates these powders.

14. Pellets. Integrated Systems
PVC
Compounding
Liquid Addition
Capacities:
LPS180: Kg/Hr.
LPS400: Kg/Hr.
LPS1200: 1,000 Kg/Hr.
Dust Collector
Weight Bin
Pellets Cooler
Mixer
Littleford
Cooling Fan
Extrusion
Bin
Pelletizing
Head
Pneumatic Conveying
Fan
Extruder (Optional)
Pre-Assembled Plants for PVC Pellets manufacturing.

15. W-10 High-Intensity Rental Mixer
Littleford Day
Rental Program
W-10 High-Intensity Rental Mixer
VERTICAL MIXER FOR PVC COMPOUNDING
Compact, high intensity mixer designed for applications
that require a high amount of mechanical shear (such as
PVC compounding or pigments dispersion). The mixing
action of this vertical bowl unit is accomplished by the
high speed rotation of the impellers which consist of a
horizontal plow or initiator setting the mix in motion in
conjunction with an angular plow or accelerator which
imparts the shear into the mix. The high speed rotation
of the mixing impellers creates a high shear pumping
vortex mixing action which keeps the mix in a combined
rotary, horizontal and vertical movement, resulting in
fast homogenization The mixing vortex is controlled
by a deflector vane that enters the mix from the lid and
by the rotating speed of the impellers The deflector
vane is equipped with a thermocouple for measuring
product temperature and an injection tube for liquid
addition capability through the vane It discharges
through a manually operated plug valve at the front of
the unit Installed in an integrated base mounted on
casters,
Specifications
3 HP Motor. Variable Drive.
Removable Mixing Elements.
Ammeter & Tachometer.
75 PSI Jacket.
Movable Deflector Vane.
Integrated Base Mounted on
Casters.
Weight (Aprox.): 400 Pounds.
44”
25” ”

16. PVC
Compounding
Rental Programs
In addition to our Process Development & Testing Programs, our
Rental Program offers a unique opportunity to test our processing
equipment in your own Plant.
Batch Mixing / Processing
Ploughshare Units, both
for atmospheric / vacuum
and Pressure Ops. : From
Table-Top 5 & 20 Lts units
to Pilot 130 Lts. Machines
Larger sizes are available.
W-10 High - Intensity
vertical mixer, for PVC
Compounding and /or
other applications req-
uiring High-Shear Op.
Ten Liters Capacity.
Daymax # Dispersers,
for high quality dispersions
of solids into liquids, such
as plastisol, varnish, paint,
and other applications.
FA-3.5 Mixer, Nauta-Type,
for special mixing / drying
requirements Gallons
Working Capacity.
A portion of the rental cost, under this program, will be applied
to the purchase of any related Littleford Day Equipment.

17. Service & Spare Parts Exclusive Dept. for customer assistance.
PVC
Compounding
Exclusive Dept. for customer assistance.
Laboratory for formulations & optimization.
Specialized Field Service Engineers.
Stock of common required parts.
Top American Mfrd. Parts: SKF, Falk, Chesterton, etc.,etc.
Assistance in Spanish, if required.
The Best Service Department.
Direct Sales Force. No Reps.
Own Manufacturing Facilities.

18. Process Development & Testing
PVC
Compounding
Main Office: Florence, Ky. Ph.- (606) Fax:
Latin America: Mexico Cy.Ph.- (52-5) Fax:
Minutes away from Greater Cincinnati Airport, Our Lab. Center
is fully equipped with all the required machinery for product
development: Mixers, Dryers, Reactors, Granulators, Intensive
Mixers-Coolers and support equipment such as filtering and
vacuum drying systems.
Cosmetics
Detergents & Soaps
Foundry Additives
Pharmaceutical
Ceramics
Fertilizers/Seeds
Rubber
Mortar Mixes
Brake Linings
Powdered Metals
Herbicides
Flame Retardant Chemicals
Pigments & Color Flushing
BMC & SMC Plastics.
Color Concentrates
PVC Compounding
Coatings
Plastisols
Adhesives & Caulks
Inks & Varnish
ChemicalReactions & Drying
Cellulose Reactions
Spices
Chocolate processing
Gelatin & Powdered drinks
Bakery Mixes
Instantanization
Industrial
Road (1 Mi)
Donaldson Rd.
Turfway Rd.
U.S. 42
Exit 180
Florence
Union
Greater
Cincinnati
Airport
I-275
I-75
To Lexington
To Cincinnati
7451 Empire Drive
Florence, KY
(1/2 Mi)
Technical Center Main Equipment:
FM-130 Mixer/Processor Ploughshare
DVT-130 Polyphase Reactor
KM-150 Continuous Mixer/Processor
M-5 Lab. Mixer & Dryer
W-180/K-300 PVC Compounder
W-10 High Intensity Mixer
Daymax 10 Pastes Disperser
Daymax 100 Pastes Disperser
Mixtruder Sigma Double-Arm Mixer
Mogul Tangential Sigma Mixer
Cincinnatus Overlapping Sigma Mixer
FA-10 Nauta Processor
Bring Us Your Toughest
Mixing, Drying & Reacting
Problems.