Littleford Day Inc. Where Processing Ideas become Reality.

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

Littleford Equipment for the PVC Industry Presentation Index Compounding Littleford Equipment for the PVC Industry Presentation Index Page Contents 4 Advantages of the Littleford Equipment for PVC Compounding. 5 The Selection Process. 6 Our Mixers. 7 Our Coolers. 8 Specifications. 9 How much do I want? 10 A Model for each case. 11 The Ideal Batch Size. 12 Optimizing PVC compounding. 13 PVC Cooling rules. 14 Pellets. Integrated Systems. 15 W-10 Pilot & Rental Unit 16 Rental Programs. 17 Service and Spare Parts. 18 Process Development and Testing.

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.

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.

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.

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.

Specifications Of the most commonly used configurations PVC Compounding Equipment W200/K300 W600/K1200 W600/K1600 W1200/K2400 Mixer Working Cap. 113 Lts. 368 Lts. 368 Lts. 710 Lts. Batch Weight 110-140 Lbs 330-450 Lbs 330-450 Lbs 650-900 Lbs. Power 25/50 o 60 HP 62/125 o 150 HP 62/125 o 150 HP 125/250 o 250 HP Cooler Working Cap. 170 Lts. 737 Lts. 993 Lts. 2553 Lts. Water Req. 15 GPM 35 GPM 35 GPM 70 GPM Power 5 o 10 HP 20 HP 25 HP 30 o 50 HP Capacity PVC - Flexible 250-470 Kg/H. 750- 1450 Kg/H 900- 1800 Kg/H 1475-2900 Kg/H PVC - Rigid 435-658 Kg/H. 1270-2040 Kg/H 1500-2630 Kg/H 2540-4080 Kg/H Double.Batch --------- 1800-2270 Kg/H 2360-3180 Kg/H 3600-5450 Kg/H

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

A Model for each case: PVC Compounding

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.

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.

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. 3.- 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.

Pellets. Integrated Systems PVC Compounding Liquid Addition Capacities: LPS180: 300 Kg/Hr. LPS400: 600 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.

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” 28”

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 # 10 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. 24.6 Gallons Working Capacity. A portion of the rental cost, under this program, will be applied to the purchase of any related Littleford Day Equipment.

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.

Process Development & Testing PVC Compounding Main Office: Florence, Ky. Ph.- (606) 525-7600. Fax: 525-1446 Latin America: Mexico Cy.Ph.- (52-5)550-9459. Fax: 550-9459 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. 41042-2985 (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.