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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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Battenfeld 50T SHUTTLE INJECTION MOLDING MACHINE PRESS

$8000.00
NICE Polymer Systems GRINDER w/ NEW Conair Unloader Sys

$2199.00
Plastics injection molder $675 WOW!!! vacuum former

$675.00
Newbury Vertical Plastics Injection Molding Machine

$12000.00
10 hp Plastics Grinder and Blower System

$6000.00
(2) ConAir Aluminum RESIN SILOS 42,400 Pound Capacity

$33500.00
RANGER ROBOT PLASTIC MOLDING EQUIPMENT

$10000.00
EMI Stainless Steel water manifolds

$69.00
Temperature Control Hot Runner Molding System

$4699.99
1995 150 TON SODICK PLASTIC INJECTION MACHINE

$9900.00
Lot of 150 Ceramic and Non-Ceramic Heater Bands

$6000.00
1990 200 TON NEWBURY VT SHUTTLE TABLE INJECTION MOLDER

$5000.00
GOUGH ECON BUCKET CONVEYER INJECTION MOLDING

$1500.00
STAR AUTOMATION TW-1800 FM111-3 FULL SERVO ROBOT 1999

$21100.00
Extrusion Blow Molding Head- New 2 X 200mm CD

$10000.00
Moretto Plastic Material Mixer- New Been Used

$5000.00
(3) ConAir Aluminum RESIN SILOS 272,440 Pound Capacity

$53500.00
INJECTION MOLDING AZ 460 4 AXIS SERVO ROBOT PICK- PLACE

$3500.00
Plastic Injection Injector Molding Machine NR

$3000.00
BRAND NEW INJECTION MOLDING MACHINE (HOPPER DRYER)

$945.00
NICE DR. BOY 15 TON INJECTION MOLDING MACHINE MODEL 15

$2989.00
INJECTION MOLDING COMET DRYER-MAGNET-AFTER COOLER

$999.00
3pcs. IMS CO. 129086 HEATER BANDS ,NEW

$20.00
INJECTION MOLDING MACHINE (BRAND NEW AUTO LOADERS)

$1295.00
SCI PROCESS CONTROL RACK #22258 WITH CARDS FOR VAN DORN

$399.00
NICE AEC Nomad PDQ3 100 Lbs/hr cfm Dryer 400 Lb Hopper

$5600.00
Secrets of Plastic Injection Molding, recycle bottles

$15.94
HPM 2-1/2" Extrusion Line, Encoder, Puller, Vacuum

$52950.00
BRAND NEW INJECTION MOLDING MACHINE (COLOR MIXER)

$1295.00
Vacuum former plastics molder injection

$395.00
Cincinnati VT 220 ton 20 oz. Injection molding machine!

$9595.00
HISHIYA VERTICAL INJECTION MOLDING MACHINE VNT-100R

$38000.00
Plastic Loading and Mixing System- New System

$10000.00
LOOK! Lot of 5 NICE Polymer Systems 10 hp Granulators

$14999.00
Toshiba 120Ton Injection Molding Press

$6800.00
1500 TON Plastic Injection Molder Molding Machine _1990

$27500.00
Polymer 1120 Sound-Proofed Grinder

$1500.00
Newbury Vertical Plastics Injection Molding Machine

$15750.00
Arburg Thermonic Temp Control - Digital Readout

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

$90000.00
EMCO MODEL 500 BLOW MOLD PLASTIC INJECTION

$1.00
Moretto Plastics Loading System- New System

$1000.00
Burkert Normally Open Brass Solenoid Valve Electric New

$9.99
Nissei Model FS260S71ASE 289 Tons 30oz NC8000F control

$20000.00
NEGRI BOSSI INJECTION MOLDING MACHINE NB-130

$4499.99
AVALON VISION NIGHT HAWK CAMERA FOR INJECTION MOLDING

$2.25
STERLCO Double 2 hp WATER PUMP Portable w/ Temp Control

$500.00
THERMO FORMING CENTRE 911 / INJECTION MOLDING MACHINE

$4995.00
BRAND NEW 45 TON VERTICAL INJECTION MOLDING MACHINE

$26500.00
DIACRO THERMOFORMER PLASTIC PRESS, DI-ACRO

$1000.00
75 Ton Van Dorn Injection Molding Machines

$6950.00
NEW 80Ton Mold Machine

$24495.00
blow mold-injection plastic resin pellets

$1.00
AUTOJECTOR 3.51 Oz.ROTARY MOLDING PRESS MODEL HCR-40

$8900.00
ENGEL 80 TON INJECTION MOLDING MACHINE MODEL ES 240/80

$9999.00
Morgan Press G-100T Injection Molding Press

$3995.00
JIFFY SHOT MOLD SAMPLER MODEL.451 110V USED

$199.99
UNA DYN 1500 LB HOPPER FOR INJECTION MOLDING

$950.00
Nissei Model FS180, 200ton 20oz NC9000G Control

$30000.00
Schuld Mfg Complete 10 Silo Resin System Aluminum

$65000.00
Ranger RT1500S3/IL Robot 2002

$500.00
REBUILT DUROFLOW INDUSTRIAL BLOWER MODEL 4509

$2150.00