Hewitt Molding Company - Custom Injection Molding Services
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Capabilities Mold Design, Build and
Engineering Services Precision Plastic
Injection Tooling Custom Injection
Molding Services Manufacturing Secondary Operations
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Custom Injection Molding Services


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Controlling the molding process is probably the most critical factor in the overall scope of providing world-class products. This is accomplished by utilizing the newest programmable microprocessor controlled machinery available. With press sizes ranging from 40 to 500 tons of clamp force, and shot sizes from less than 1 ounce to over 50 ounces, your part size and shape options become vast. Combine our hot runner and insert molding expertise with our versatility to handle low or high volume production in a lean environment, and your "One Stop" source is nearly complete.

Molding Profile

  • Extremely low ppm level on all products.
  • Fastest turn-around time in the industry.
  • 100% on-time delivery.
  • Lean manufacturing techniques.
  • Insert & overmolding.
  • In-house mold maintenance & repair.
  • Close-tolerance critical molding.
  • AIB certified for food packaging.
  • ISO/TS 16949:2002 and ISO 13485:2003 registered.
Equipped with the latest in technology equipment and staffed with veteran molding personnel, our manufacturing plant can handle even the most difficult molding projects. As seen in the photos above, we use Japan Steel Works (JSW) molding machines, some of the most reliable machines made.

Thomas-Pic-3

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Production

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Capabilities · Tool Room Equipment List · Production Equipment List · Quality Control Equipment List · Quality Profile · Quality Assurance · Services Offered · Scientific Injection Molding · Customer Benefits

Capabilities

Capabilities

Instrumentation Components
CNC Milling Centers High Speed Hard Milling
Wire EDM with Turn and Burn Capabilities
Sinker EDM
Heliarc Welding
Heat Treat
Pad Printing
Hot Stamping
Ultrasonic Welding
Hand Polishing
Blast / Deburr
Insert Injection Molding
Injection Molding
Assembly
Inspection
Clean Room
Customer Barcoding and package labeling
Prototyping
Metal/Polymer Machining
Unigraphics Design Software (NX3, NX4, NX5 and NX6)
CNC Machining Ram EDM
Precision Grinding
Custom Assembly
Secondary Operations
Engineering Consulting Services
PC-DMIS software
Brown & Sharp CMM measurement system
720 position Renishaw Probe

Facility

 View 		Tool Room 9,240 sq. ft. Manufacturing 32,780 sq. ft.
Total 45,460 sq. ft. Offices 3,440 sq. ft.

Company

 View 		Certified to the ISO 9001:2001 Standard October 1996
Certified to the ISO/TS 16949:2002 Standard in January of 2005
Certified to the ISO 13485:2003 Standard in March 2009

Engineering File Formats

 View 		Assembly FEM Files (*.afm)
Bookmark Files and PLM XML (*.plmxml)
Bookmarks - Pre NX4 (*.bkm)
DWG Files (*.dwg)
DXF Files (*.dxf)
FEM Files (*.fem)
I-DEAS Exchange Package (*.xpk)
IGES Files (*.igs)
JT Files (*.jt)
Parasolid Binary Files (*.xmt_bin)
Parasolid Binary Files (*x_b)
Parasolid Text Files (*.x_t)
Parasolid Text Files (*.xmt_txt)
Part Files (*.prt)
Simulation Files (*.sim)
Solid Edge Assembly Files (*.asm)
Solid Edge Part Files (*.par)
Solid Edge Sheet Metal Files (*.psm)
Solid Edge Weldment Files (*.pwd)
SolidWorks Assembly Files (*sldasm)
SolidWorks Part Files (*.sldprt)
STEP Files (*.stp)
User Defined Feature Files (*.udf)

Tool Room

High speed CNC milling machines.
In-house heat treating and polishing.
Wire, sinker and EDNC EDM machines.

Injection Molding

1 vertical injection molding machine.
16 horizontal injection molding machines (3 all-electric servo driven).
Star and Yushin robotics.

Decorating / Finishing

Hot stamping.
Labeling.
Pad printing.
Ultrasonic Welding.

Quality Control

QAS Version 3.1 SPC Software.
Servo-driven CMM.
Video and optical comparators.

Tool Room Equipment List

Makino SP43 CNC Wire EDM

 View 		1,764# Table Load
17.8” x 11.8” Table Travel, 12.6” Z Axis
33.5 x 28.3 x 12.6 Max Work Piece
Accuracy ±0.000060”
Repeatability ±0.000060”

Makino SP64 CNC Wire EDM

 View 		2,645# Table Load
25.5” x 15.7” Table Travel, 16.5” Z Axis
33.5 x 28.3 x 12.6 Max Work Piece
Accuracy ±0.000060”
Repeatability ±0.000060”
Turn and Burn Capable

Makino S56 Vertical Machining Center

 View 		1325# Table Load
35.4” x 19.7” Table Travel, 17.7” Z Axis
20 Station Tool Changer
Accuracy ±.00006”
Repeatability ±.00004”
Equipped with Blum Laser System

Kitamura CNC Mycenter-3X Vertical Machining Center

1100# Table Load
17.9 x 29.9 Table Travel, 18” Z Axis
20 Station Automatic Tool Changer
Tolerances within a 1’ cube, ±.0002” repeatability

AGIE Mondo Star 50 EDM

16 Station 3R Tool Changer
300 Amp Power Supply
3D Orbit Capabilities
Integrated C Axis
Travel X-20” Y-14” Z-14”
Work Weight – 1100# Electrode Weight 220#

Hansvedt (Leadman) RAM EDM

 View 		10½” x 13½” x 16” Table Travel
1650# Work Weight
3R Orbicut CNC Attachment and an Anilam Digital Readout
60 Amp H-Pulse Power Supply with System
First Spark 3 Axis Digital Readout
Repeatability ±.0002”

(4) Vertical Mills with Attachments

12" x 24"

Bridgeport Vertical Mill

15" x 33"
1500# Workload Capacity

(6) Chevalier Surface Grinders

6" x 18"

Chevalier Wet Grinder

16" x 40"

(6) Boyar-Schultz Surface Grinders

6" x 12"
6" x 18"

(2) Harig Surface Grinders

6" x 18"

Clausing Lathe

13" x 42"

Arboga Radial Arm Drill Press

3½'

Rockwell Drill Press

20"

Drill Press

24"

Production Equipment List

Molding Machines

(1) 40 Ton JSW Electric 0.8 oz.
(1) 55 Ton JSW 2.0 oz.
(1) 75 Ton Newbury Vertical Press 5.0 oz.
(1) 85 Ton JSW 3.1 oz.
(1) 110 Ton JSW 5.6 oz.
(1) 120 Ton JSW Electric 5.6 oz.
(2) 165 Ton JSW 11.8 oz.
(1) 200 Ton JSW Electric 9.6 oz.
(3) 245 Ton JSW 17.8 oz.
(1) 250 Ton Toshiba 30.3 oz.
(1) 310 Ton JSW 28.6 oz.
(1) 385 Ton JSW 28.6 oz.
(1) 500 Ton JSW 53.3 oz.

Auxiliary Molding Equipment

Central Material Conveying System
(3) 15 CFM Dehumidifying Hopper Dryers
(2) 20 CFM Dehumidifying Hopper Dryers
(6) 25 CFM Dehumidifying Hopper Dryers
(2) 60 CFM Dehumidifying Hopper Dryers
100 CFM Dehumidifying Hopper Dryer
(2) Mold Temperature Controllers (Oil)
(24) Mold Temperature Controllers (Water)
(3) Conair 4-Component Pellet Additive
(3) Parts Conveyors & Parts Separator
(5) Sprue Picker Robots
10 Ton Chiller
Gravimetric Blenders
Numerous Hot Runner Control Units
50 Ton & 30 Ton Cooling Tower
Tower Treatment System

Robots

(1) Star T600VI-480
(1) Yushin ATX-II 300 SL
(2) Star TW 1000V 460V2
(2) Star TW 800V-460

Finishing Equipment

(2) 3” Pad Printer (Dual Sealed Cup)
(2) 900 Watt Ultrasonic Welder / Inserter
(2) Label Applicator Machine
1 Ton Hot Stamp Machine (1 to 4 Color)

Clean Room

20' x 30' Soft Wall Portable Clean Room

Material Handling Equipment

(2) 5000 lb Forklift
6000 lb Forklift
Pallet Jacks
Parts Counting Scales
Plastic Granulators
Platform Scales
Rotary Screw Air Compressor with Dryer

Quality Control Equipment List

Brown and Sharpe CMM

 View 		Model 07.07.05 (CNC) (Adjusts to temperature variations)
PC Dmis Software,V-4.3
Datapage/RT Software V-3.33
Renishaw PH10 Probe Head (720 Positions)
28X x 26Y x 18Z

Deltronics DVC-120 Video Comparator

6" x 12"
14” Color Video Monitor
Display Monitor

Quality Control Equipment List

Deltronics MPC-5 Optical Comparator
Unitron ZSB Microscope
NWA QAS Version 5.1 SPC Software
Vision Inspection System
Mitutoyo SJ-201 Surface Profilometer

Quality Profile
  • Extremely low ppm levels for all parts.
  • Complete first piece layout capable.
  • 3 shift in-process inspection.
  • Conform to AIAG standards.
  • Quality Control Plans, FMEAs

Quality Assurance
Our Quality Assurance Lab is equipped to handle inspection of the most difficult of parts. Utilizing a servodriven Coordinate Measuring Machine along with optical and video devices, part layouts and in-process inspection are a snap. As an ISO 9001:2000, ISO/TS 16949:2002, and ISO 13485:2003 certified molder, our quality manual and procedures are well defined and documented.

Services Offered
  • Scientific Injection Molding, Process Optimization and the Universal Set-Up Sheet.
  • 3D solid design, Unigraphics NX6 and SolidWorks 2009.
  • Prototype mold build and run. Deliveries as quick as “ONE WEEK”.
  • Production mold build and run. We have all the latest and greatest technology including “HIGH SPEED HARD MILLING”. Tools can be produced faster with greater accuracy.
  • Metrology Lab with “Servo Driven, 720 positions Renishaw Probe, B&S CMM”, and video comparator.
  • Horizontal and vertical molding machines, 40 to 500 ton. Allowing a wide range of product sizes as well as insert molding.
  • Robots and conveyors for those special needs.
  • Pad printing.
  • Heat stamping.
  • Sonic welding.
  • Labeling.
  • Assembly.
  • Portable clean room 100,000 clean room.
  • ISO9001:2000, ISO/TS16949:2002 and ISO13485:2003 certified.

Scientific Injection Molding
A good part is the culmination of proper resin selection, component design, tool design, tool construction and processing. Each is equally important and must be done correctly.
  • Faster product development.
  • Fewer engineering changes.
  • Faster time to market
  • Higher quality.
  • Higher return on assets.
  • Higher white collar productivity.
  • Easier life on production floor.
  • Plastics point of view to forming identical parts consistently.
  • Scientific approach to establishing all molding variables.
  • A process where the machine adapts to changes in viscosity not the operator.
  • The ability to move from press to press and reproduce part consistency.
  • Viscosity versus flow rate, pressure loss, gate seal and short shot studies.

Customer Benefits
  • In business for 42 years. Management Team with over 200 year of experience.
  • ISO9001:2000, ISO/TS16949:2002, and ISO13485:2003 Certified.
  • Scientific Injection Molding – We build ready to run molds.
  • Seamless take over of all custom injection molding services.
  • Structured project management reduces lead-time for quick to market requirements.
  • We partner with local and off-shore businesses to meet all your goals.
  • Lean manufacturing principles applied to all processes.
  • Climate controlled facility for enhanced process control.
  • Design, tool build, production, qualification and secondary operations all under one roof.
  • Wide range of press tonnage to service all your needs (40 to 500 ton).
  • Horizontal and vertical molding machines.
  • Financially sound with room to grow.
  • A corporation founded on the principles of truth, honor and integrity.
  • TPS principles applied
  • Responsive Customer Service
  • File transfer made easy. We can accept STEP, XT, IGES.
  • Climate Control facility for enhanced process control.

 MORE IMAGES 

· Brown and Sharp CMM

· Material Storage System

· Insert Molding

 DOWNLOADS 

width= ISO 9001:2000
(PDF, 351KB)

width= ISO/TS 16949:2002
(PDF, 360KB)

width= ISO 13485:2003
(PDF, 422KB)

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