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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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AUTOJECTOR 3.51 Oz.ROTARY MOLDING PRESS MODEL HCR-40

$8900.00
HISHIYA VERTICAL INJECTION MOLDING MACHINE VNT-100R

$38000.00
10 hp Plastics Grinder and Blower System

$6000.00
(3) ConAir Aluminum RESIN SILOS 272,440 Pound Capacity

$53500.00
RANGER ROBOT PLASTIC MOLDING EQUIPMENT

$10000.00
1990 200 TON NEWBURY VT SHUTTLE TABLE INJECTION MOLDER

$5000.00
NICE AEC Nomad PDQ3 100 Lbs/hr cfm Dryer 400 Lb Hopper

$5600.00
1995 150 TON SODICK PLASTIC INJECTION MACHINE

$9900.00
Battenfeld 50T SHUTTLE INJECTION MOLDING MACHINE PRESS

$8000.00
BRAND NEW INJECTION MOLDING MACHINE (COLOR MIXER)

$1295.00
Lot of 150 Ceramic and Non-Ceramic Heater Bands

$6000.00
Arburg Thermonic Temp Control - Digital Readout

$50.00
Plastics injection molder $675 WOW!!! vacuum former

$675.00
Injection Blow Molding Machine -2008 Model 125/25

$90000.00
NICE Polymer Systems GRINDER w/ NEW Conair Unloader Sys

$2199.00
STERLCO Double 2 hp WATER PUMP Portable w/ Temp Control

$500.00
INJECTION MOLDING COMET DRYER-MAGNET-AFTER COOLER

$999.00
Plastic Injection Injector Molding Machine NR

$3000.00
ENGEL 80 TON INJECTION MOLDING MACHINE MODEL ES 240/80

$9999.00
Newbury Vertical Plastics Injection Molding Machine

$15750.00
3pcs. IMS CO. 129086 HEATER BANDS ,NEW

$20.00
UNA DYN 1500 LB HOPPER FOR INJECTION MOLDING

$950.00
NICE DR. BOY 15 TON INJECTION MOLDING MACHINE MODEL 15

$2989.00
Morgan Press G-100T Injection Molding Press

$3995.00
Nissei Model FS260S71ASE 289 Tons 30oz NC8000F control

$20000.00
1500 TON Plastic Injection Molder Molding Machine _1990

$27500.00
INJECTION MOLDING AZ 460 4 AXIS SERVO ROBOT PICK- PLACE

$3500.00
REBUILT DUROFLOW INDUSTRIAL BLOWER MODEL 4509

$2150.00
DIACRO THERMOFORMER PLASTIC PRESS, DI-ACRO

$1000.00
Secrets of Plastic Injection Molding, recycle bottles

$15.94
Plastic Loading and Mixing System- New System

$10000.00
EMCO MODEL 500 BLOW MOLD PLASTIC INJECTION

$1.25
Moretto Plastics Loading System- New System

$1000.00
Schuld Mfg Complete 10 Silo Resin System Aluminum

$65000.00
GOUGH ECON BUCKET CONVEYER INJECTION MOLDING

$1500.00
BRAND NEW 45 TON VERTICAL INJECTION MOLDING MACHINE

$26500.00
Cincinnati VT 220 ton 20 oz. Injection molding machine!

$9595.00
EMI Stainless Steel water manifolds

$69.00
Nissei Model FS180, 200ton 20oz NC9000G Control

$30000.00
75 Ton Van Dorn Injection Molding Machines

$6950.00
BRAND NEW INJECTION MOLDING MACHINE (HOPPER DRYER)

$945.00
INJECTION MOLDING MACHINE (BRAND NEW AUTO LOADERS)

$1295.00
Polymer 1120 Sound-Proofed Grinder

$1500.00
HPM 2-1/2" Extrusion Line, Encoder, Puller, Vacuum

$52950.00
Newbury Vertical Plastics Injection Molding Machine

$12000.00
JIFFY SHOT MOLD SAMPLER MODEL.451 110V USED

$199.99
Moretto Plastic Material Mixer- New Been Used

$5000.00
Vacuum former plastics molder injection

$395.00
NEW 80Ton Mold Machine

$24495.00
Temperature Control Hot Runner Molding System

$4699.99
Ranger RT1500S3/IL Robot 2002

$500.00
(2) ConAir Aluminum RESIN SILOS 42,400 Pound Capacity

$33500.00
THERMO FORMING CENTRE 911 / INJECTION MOLDING MACHINE

$4995.00
REGLOPLAS HOT OIL & WATER INJECTION MOLDING THERMOLATOR

$650.00
Burkert Normally Open Brass Solenoid Valve Electric New

$9.99
Toshiba 120Ton Injection Molding Press

$6800.00
Extrusion Blow Molding Head- New 2 X 200mm CD

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

$14999.00
blow mold-injection plastic resin pellets

$1.00
AVALON VISION NIGHT HAWK CAMERA FOR INJECTION MOLDING

$2.25
NEGRI BOSSI INJECTION MOLDING MACHINE NB-130

$4499.99