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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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1979 200 TON VAN DORN INJECTION MOLDING MACHINE
$2500.00
Milacron VL-1650 Large Molding Machine 1993 w/ Robot
$80000.00
(3) ConAir Aluminum RESIN SILO 272,440 Pound Capacity
$53500.00
INJECTION MOLDING MACHINE (BRAND NEW AUTO LOADERS)
$1295.00
AEC, Portable Air Cooled Chiller, 20 ton
$10000.00
USED GLUCO VERTICAL PLASTIC INJECTION MOLDING VS 6/10/2
$6900.00
Engel 150 ton Tiebarless Injection Molding Machine
$35000.00
Dyco Automatic Bagger / Packer EXCELLENT CONDITION !!
$55000.00
Vacuum Forming Machine - Plastic Model Mold Form Former
$79.95
A Plastic Injection Molding Attachment for Drill Press
$14.94
NICE AEC Nomad PDQ3 100 Lbs/hr cfm Dryer 400 Lb Hopper
$5600.00
LOT of 4 KJT Band Heaters 0055 301 0037 230V/2200W NEW!
$24.99
CONAIR MPW-5 5HP TON PORTABLE REFRIGERATED CHILLER
$127.50
1992 Van Dorn 85 RS 5F HT
$4000.00
Two 60 ton Nissei Injection Molding Machines
$5000.00
HYTROL CONVEYER FOR INJECTION MOLDED PARTS
$2000.00
Piovan Dryer Model CDN1/2/2
$3500.00
Valco Cincinnati HP Dual Resin Pump Hot Melt 5085-3/4HP
$798.00
BRAND NEW 45 TON VERTICAL INJECTION MOLDING MACHINE
$26500.00
ENGEL Plastic Injection Molding Tip NEW!!
$34.99
Injection molding machines
$5500.00
(2) ConAir Aluminum RESIN SILO 42,400 Pound Capacity
$33500.00
MITSUBISHI Band Heater 3A20700 Injection Molding NEW!!
$9.99
Schuld Mfg Complete 10 Silo Resin System Aluminum
$65000.00
35 TON BATTENFELD INJECTION MOLDER MOLDING MACHINE
$5500.00
PPE Plastic Injection Molding Nozzle NEW!!
$34.99
HOPPMANN CENTRIFUGAL FEEDER FOR INJECTION MOLDING PARTS
$2100.00
Injection Molding Machine, Cincinnati Milacron 440 Ton
$19500.00
Square D class 9012 Series C GCW-2
$44.99
Injection molding machine; 1996 Engel 250-ton/5-oz
$5101.00
Van Dorn Rexroth 5003 Prop amp card pressure control
$89.00
YUSHIN ROBOT FULL SERVO NETLINER VNII- 250S
$8500.00
Jomar Injection Blow mold molding Model 85S (1994)
$85000.00
PPE Plastic Injection Molding Nozzle NEW!!
$34.99
Nice Autojectors 10 ton Vertical Molding Machine Molder
$9900.00
molding machine
$6000.00
REBUILT DUROFLOW INDUSTRIAL BLOWER MODEL 4509
$2150.00
Fast Heat bm66710 heater band, injection molding
$9.99
High Impact Nylon 6/6 Nat. (Vrigin) 2,532 lbs
$1900.00
ARBURG ALLROUNDER PLASTIC INJECTION MOLD MACHINE USED
$0.99
1500 TON Plastic Injection Molder Molding Machine _1990
$19000.00
Newbury 75 ton vertical injection molding machine
$13900.00
AIS Semi-Automatic Bagger / Packer EXCELLENT !!
$24500.00
Sumitomo 30 ton Disc Injection Molding Machine
$8500.00
Nissei 20 ton Injection Molding Machine
$6500.00
Cincinnati Milacron VL1650-179, 1993
$75000.00
1998 JSW 40-TON ELECTRIC PLASTIC INJECTION MOLDING
$16500.00
Toyo TT150 Vertical Injection Molding Machine
$75000.00
Conair GB220 AutoWeigh Gravimetric Batch Blender Hopper
$3125.00
UNA DYN 1500 LB HOPPER FOR INJECTION MOLDING
$950.00
DUAL HYDROLIC REFILL PUMP FOR INJECTION MOLDING MACHINE
$1900.00
FAST HEAT SENSITIP RUNNERLESS MOLDING SYSTEM
$49.00
van dorn rexroth 5011 amp card for volume control
$89.00
TECTONICS HAS SGI STA INJECTION PLASTIC MACHINE PRESS
$1249.99
Cincinnati Milacron Injection Molding Press
$8999.00
Uniloy 350-R1 Blow Mold Molding Machine 4 Head
$88000.00
1998 BATTENFELD 55-TON PLASTIC INJECTION MOLDING MACHIN
$12500.00
CINCINNATI INJECTION MOLDING PRESS
$14500.00
IMS 3W04 Plastic Injection Molding Nozzle 107523 NEW!!
$49.99
Sloan Industries Injection Molding Nozzle CHG80056 NEW!
$49.99
Injection Mold Quote - Made in Russia to U.S. standards
$1.00
ENGEL Band Heater 02216-1784 Type 10 2750 Watt NEW!!
$19.99
Nissei Injection Molding Press
$35000.00
500 TON HMP Injection Molding Machine 1996
$9999.00
Lot of 6 Band Heaters 240V/100W GPMS NEW!!
$19.99
NISSEI ROTARY TABLE PLASTIC INJECTION PRESS TD60R12ASE
$4999.95
33 TON ARBURG INJECTION MOLDER MOLDING MACHINE (1995)
$7900.00
BRAND NEW INJECTION MOLDING MACHINE (HOPPER DRYER)
$795.00
2 - Boy 15S Injection Molding Machines Plastics
$2000.00
1997 ARBURG 40 TON MODEL 270 M 350-90 1.7 OZ WHIT ROBOT
$8900.00
Burkert Normally Open Brass Solenoid Valve Electric New
$9.99
Secrets of Plastic Injection Molding, recycle bottles
$15.94
DIGITAL TEMPERATURE CONTROL 32-752 F PLASTIC INJECTION
$19.99
Conair GB140 AutoWeigh Gravimetric Batch Blender Hopper
$3125.00
ENGEL 45mm Plastic Injection Molding Tip 545ENB NEW!!
$34.99
Simplomatic Plasticor PLA-63 Plastic Injection Molder
$2000.00
Variable Ratio Meter Mix Dispensing Injection Molding
$15000.00
Concrete chocolate Candy mold maker make stepping stone
$645.00