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Plastics

Injection, Blow Molding

Injection, Blow Molding Article

U.S. Patent 237,168 was issued on February 1, 1881, to Celluloid Novelty Co. and Celluloid manufacturing Company, New York. This was the first patent for the processing of extruded polymer into a parison for blow molding.

The first applications for blow molding were for cellulose nitrate, and later, in the 1930s, for cellulose acetate. Blow molding remained a relatively small part of the plastics manufacturing scene until the introduction of Low Density Polyethylene (LDPE) in the 1940s. The production of LDPE squeeze bottles by Monsanto caused a rapid expansion of the industry, with containers produced to replace glass bottles for shampoos and liquid soaps.

The mass production of high density polyethylene (HDPE) and polypropylene (PP) in the 1950s led to a further increase in blow molding demand, for applications such as liquid detergents, motor oil, water and milk. The lightweight HDPE one gallon milk container revolutionized the dairy industry, as glass bottles and paperboard were quickly replaced.

The production of polyethylene terephthalate (PET) led to the viability of reheat stretch blow molding. The strain hardening properties of PET allowed the high volume production of bottles able to resist the carbonation pressure in soft drink applications. The high clarity and economics of PET stretch blow molding have made this a popular production method for bottles for water, detergents, and other products.

Injection, Blow Molding Items

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Burkert Normally Open Brass Solenoid Valve Electric New

$9.99
ENGEL 80 TON INJECTION MOLDING MACHINE MODEL ES 240/80

$9999.00
Uniloy Milacron 4 Cavity PET Blow Mold Electra Form

$150000.00
UNY DYN 1500 LB HOPPER FOR INJECTION MOLDING

$1200.00
NICE AEC Nomad PDQ3 100 Lbs/hr cfm Dryer 400 Lb Hopper

$5600.00
CRYSTAL ALLOY MODEL 99M BLOW MOLD PLASTIC INJECTION

$1.00
THERMOCOUPLE-TEMP. SENSOR 10 mm for ARBURG MACHINE. NEW

$19.99
4 25Ton MEIKI Injection Molding Machines

$7000.00
THERMO FORMING CENTRE 911 / INJECTION MOLDING MACHINE

$4995.00
NICE! AMERICAN INDUSTRIAL AIR COOLED OIL COOLER/CHILLER

$48.75
Arburg Thermonic Temp Control

$50.00
Injection Blow Molding Machine -2008 Model 125/25

$90000.00
Moretto Plastics Loading System- New System

$1000.00
NICE Polymer Systems GRINDER w/ NEW Conair Unloader Sys

$2199.00
Toshiba 120Ton Injection Molding Press

$9500.00
Injection Plastics Molding Machines (older)

$26.00
Cincinnati VT 220 ton 20 oz. Injection molding machine!

$9595.00
Ankele 1-18-20-5 Extruder System

$5995.00
Sterlco M2 Temperature Controller Works Controller only

$129.00
ELECTRA FORM MOLD TIP HEATERS 199-0208T

$60.00
Arburg 305 210 700 - 70 ton injection molding machine

$5995.00
LOOK! Lot of 5 NICE Polymer Systems 10 hp Granulators

$14999.00
Plastic Loading and Mixing System- New System

$10000.00
Temperature Control Hot Runner Molding System

$4999.99
PLASTICS SIGHT GLASS LOADER-MODEL C1K

$500.00
NEGRI BOSSI INJECTION MOLDING MACHINE NB-130

$4499.99
Matsui Dessicater Dryer Dehume Jet DMZ80-50R Plastic

$599.00
INJECTION MOLDING AZ 460 4 AXIS SERVO ROBOT PICK- PLACE

$3500.00
PLASTIC ADDITIVE MICRO FEEDER-B175

$700.00
Extrusion Blow Molding Head- New 2 X 200mm CD

$10000.00
PLASTIC INJECTION MOLD MACHINE VAN DORN

$1500.00
crystal alloy model 110A megatron plastic blow mold

$1.00
NICE DR. BOY 15 TON INJECTION MOLDING MACHINE MODEL 15

$2989.00
75 Ton Van Dorn Injection Molding Machines

$6950.00
Moretto Plastic Material Mixer- New Been Used

$5000.00
NISSEI ROTARY TABLE INJECTION MOLDING PRESS TD60R12ASE

$11995.95
WATER TOWER 40 GALLON STAINLESS 1/2HP PUMP RADIATOR FAN

$199.00
(2) hot stamp press kensol 25 (1) kensol 27 real nice

$4500.00
10 hp Plastics Grinder and Blower System

$6000.00
ENGEL 50 TON INJECTION MOLDING MACHINE MODEL ES200/50

$6999.00
REGLOPLAS HOT OIL & WATER INJECTION MOLDING THERMOLATOR

$650.00
MultiPlas 85 Ton Shuttle Table Vertical Molding Machine

$500.00
Large Belt Conveyor. Ideal for Molding Machine, Other

$0.99
1992 Van Dorn 85 RS 5F HT

$5000.00
BRAND NEW INJECTION MOLDING MACHINE (HOPPER DRYER)

$945.00
AEC 1100 TON INJECTION MOLDING ROBOT

$13500.00
STAR AUTOMATION TW-1800 FM111-3 FULL SERVO ROBOT 1999

$22500.00
BRAND NEW 45 TON VERTICAL INJECTION MOLDING MACHINE

$26500.00
Newbury injection molder- no reserve

$0.99
INJECTION MOLDING MACHINE (BRAND NEW AUTO LOADERS)

$1295.00
Engel Tiebarless Electric 2001 Injection Molding Press

$43900.00
Sterlco M2A Temperature Controller Control only. works

$129.00
1990 200 TON NEWBURY VT SHUTTLE TABLE INJECTION MOLDER

$5000.00
B200 POSIMAX ADDITIVE FEEDER-NEW

$1500.00
DIACRO THERMOFORMER PLASTIC PRESS, DI-ACRO

$1000.00
BRAND NEW INJECTION MOLDING MACHINE (COLOR MIXER)

$1295.00
Uniloy Milacron 5 Cavity PET Blow Mold VERSAPET

$150000.00
Uniloy Milacron 4 Cavity PET Blow Mold Electra Form

$150000.00
CINCINNATI MILACRON 150 Ton Injection Molding Machine

$1000.00