Model 70 Injection Molding Machine

Model 70 Description

The model #70 Mini-Jector answers a long-standing need for a precision semi-automatic molding machine that is both compact and user-friendly. A vertical, twin-cylinder, ten-ton hydraulic clamp with a vertical injection unit permits the use of conventional molds with a center sprue bushing, as used in horizontal machines. This configuration also allows for the use of hot runner molds.

MODEL #70 FEATURES:

  • Incorporates a twin cylinder design
  • Uses center sprue injection-type molds
  • Compatible with molds from other machinery:
    • DME 8"x8"
    • Universal bases 5"x6" U, #5" x 8" U
    • Master Unit Dies
  • Machine is designed with a "sit-down" type stand for maximum operator comfort
  • Formica table-top
    • Gives machine operator space to place inserts or tools adjacent to the work area
  • Can be built as a single station unit or with an in-out single station shuttle table for loading convenience

COMPACT DESIGN

  • Allows placement near assembly areas to avoid having to "batch mold"
  • Can be easily integrated into a product assembly line

CLAMPING UNIT

  • Direct-hydraulic clamp features:
    • Clamp axis potentiometer and a settable mold-protect pressure
      • Insures machine will not cycle with obstructions in the mold
    • System of check valves lock clamp when it is closed
    • Final clamp pressure is fully adjustable
    • Hydraulic knockout supplied for on-the-fly part ejection

INJECTION UNIT

  • Compact vertical injection unit features:
    • Available in 1 ounce or 2.15 ounce models
    • Efficient direct hydraulic screw drive
    • Front-loading hopper with dump tube
    • Radiused nozzle with either a straight orifice or a shut-off non-drool design
    • Selectable:
      • Screw decompression
      • Sprue break
    • Adjustable screw and injection speeds
    • Adjustable back pressure
    • High torque drive for molding any type of thermoplastic resin
    • Two-pressure injection can be either timer or position controlled
    • Shuttle table available for mold-loading convenience

HYDRAULIC UNIT

  • 5 HP pump motor
  • Immersed 6 GPM vane pump for reliable and quiet operation
  • 12 gallon reservoir features:
    • Heat exchanger
    • Return line filter with monitor connected to machine alarms
    • All pressures controlled with an electronic proportional pressure valve
    • All components accessible for ease of maintenance

CONTROL UNIT

  • All sequences and parameters controlled by an extremely quick Mitsubishi PLC
  • LCD "touch screen" used for operator interface
    • All positions, temperatures, hydraulic pressures, and times are set on this screen
  • Up to 36 eight-character alpha-numeric set-up "recipes" can be stored
  • A variety of alarms and safety interlocks are part of the machine software package
    • Designed with input from customers
  • Safety gate features:
    • Automatic opening when clamp opens
    • Positive monitored mechanical safety
    • Monitored hydraulic safety
    • Dual electrical interlocks
  • A selectable automatic temperature “cut-back” feature will automatically reduce temperature settings if the machine goes idle

POWER OPTIONS

  • 220V, three phase
  • 480V, three phase

Model 70 Specs

General Specifications
Pump Delivery 6.0 GPM
Pump Motor Rating (@ 1725 RPM) 5 HP
Reservoir Capacity 12.5 Gallons
Rated Current @ 230VAC 28 Amps
Approx. Machine Shipping Weight 1500 Pounds

Clamping Unit
Approx. Maximum Clamp Force 10 Tons
Maximum Mold Opening Stroke 6 Inches
Mold Closing Force - Mold Protect 297 Pounds
Minimum Mold Shut Height 4.75 Inches
Open Daylight Maximum 10.75 Inches
Platen Size (D x W) 8.5 x 24 Inches
Distance between Tie Rods 4.75 x 17.75 Inches
Standard Mold Size (W x D x H) 8 x 8 x 6.5 Inches
Hydraulic Ejector Stroke 1 Inch
Hydraulic Ejector Force 1179 Pounds

Injector Unit

 70-1 70-2
Hopper Capacity 12 Pounds
Screw Diameter 0.875 1.125 Inches
Screw Stroke 3.0 4.0 Inches
Maximum Screw Displacement 1.80 3.98 in3
Maximum Shot Size 1.0 2.15 Ounces
Maximum Injection Pressure 16,000 16,593 PSI
Maximum Screw Speed 254 238 RPM
Plasticizing Capacity 28 45 lbs/hour
Screw Recovery Rate 0.12 0.20 oz/sec
Maximum Nozzle Discharge Rate 2.47 2.39 in3/sec
Total Heater Band 2,400 3,000 Watts
Screw Torque 1253 1765 in-lbs

(Specifications may change without notice)

Model 70 Media

 

Front View
Front View
Front View - Screw Area
Front View - Sc...
Front Side View
Front Side View
Safety Gate
Safety Gate
Rear View
Rear View
Front View
Front View