Injection Molding Machines

For Information on any Sumitomo Machine                       
SED Model Electric Injection Molding Machines 
SGM Models Ultra High Speed Injection Molding Machines
The SHC Series Injection Molding Machines 
                                               

High Performance at a General Purpose Price

The SHC (55 to 385 US tons) is the general purpose series of machines that provides faster operation, higher precision, increased production flexibility and superior mold protection at an easily affordable price.

Injection Unit Features

The improved precision and shot-to-shot repeatability of the SHC’s injection unit are due to many Sumitomo engineering innovations and added features.

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On 55 to 88 ton models, closed loop control of velocity and pressure are achieved with Direct Digital Control (DDC) of a variable volume pump with highly sophisticated pressure and flow measuring feedback devices.

The high level of hydraulic system stability on the 110 to 385 ton models is provided by a new Triple Pump System with Direct Digital Servo control technology. The speed and precision of this system offers improved response, shot-to-shot repeatability and injection control (linearity)—from high velocity all the way down to 1% velocity.

Other SHC injection performance features include:
      Screw positioning settable to .001 in.
      Fine Flow Control screw assembly (55 to 160 ton models) for 
       superior pressure transmission and easier color change
      Fast response PID temperature control settable to .1°F for up
       to 6 barrel zones— with 2-second sampling
      Auto Slow Down mode that automatically reduces screw
       rotation speed at the end of plasticizing
      Programmable V/P switchover selectable by position, time
       or pressure, for precision filling

Clamping for 110 to 385 Ton Models

For 110 to 385 ton models, the SHC’s hydromechanical clamp design and electronics give molders the advantages of both toggle and direct hydraulic clamp machines by providing:
      The separate mold height adjustment (production flexibility)
        and faster operation of a toggle
      The precision control of tonnage and low pressure mold 
       protection of a direct hydraulic clamp machine.

For example, decreases in dry cycle time for the SHC compared with its predecessor range from .9 seconds for the 110 ton to 2.3 seconds for the 385 ton. For take-out robots and 3-plate molds, higher precision positioning includes mold protection to .001 in. and mold open stop position accuracy to +/- .01 in.

The small volume of oil in the main hydraulic cylinder:
      Reduces the time to increase/decrease clamp pressure
      Lowers oil flow resistance and packing resistance for greater
       energy efficiency
      Lowers hydraulic oil use

Clamping for 55 to 88 Ton Models

For 55 and 88 ton models, a closed loop, electronically controlled, direct hydraulic clamping system is used. It features:
       Precise digital setting and Direct Digital Control (DDC) of
        mold open/close positions. DDC detects and compensates
        for any overrun during the first three shots of start-up.
       Three-stage mold open/close speed control settable on
        a percentage basis
       Fast response prefill valve for cycle time improvement
       Rigidity and durability of the clamp design ensured with
        finite element analysis methods

Production Flexibility

To ensure production flexibility, the SHC series was designed with:
      Large platens and horizontal tie bar spacing
      A large-capacity injection unit
      High-Resolution Low-Speed mode
      Intrusion molding capability
      Hydraulically driven mold height adjustment (110-385 ton models)

N-VII Control

From innovative mold protection features to sophisticated profiling, the N-VII control is designed to be easy to use and to increase your productivity.

With the unique Fail Safe Mold Protection function, “pop-up” screens ensure the proper sequence of operation, reminding the operator to: change the molding conditions if the mold has been replaced, check for over packing, or purge the plasticizing unit.

This feature, combined with 2-level Password Protection, virtually eliminates costly mold damage due to operator error and gives you more control of the production process.

Other ease-of-use features of the N-VII control include:
      Large 10.4 in., color LCD screen with high intensity graphics
        Instant access to commonly used screens
      Internal memory storage of 40 setups (plus 20 setups per
       optional memory card)
      Screen-prompted setup assistance and auto-programming
       of initial molding conditions

Standard and Optional Equipment

Listings of standard and optional equipment may be viewed by clicking below:

End-to-End Reliability—Sumitomo Style Injection Molding Machine

With the SHC, you get Sumitomo advanced engineering, rugged construction and ISO 9001 certified manufacturing that add up to unsurpassed machine reliability.

Plus an end-to-end, 24/48 month warranty covering everything except filters, fuses and bulbs. And all the advantages of Sumitomo processing assistance, training, field service, parts availability and financing.

The SHC Series. General purpose machines that deliver higher performance and improved productivity at an even more affordable price.

(770) 427-3834
Scot@CompletePlastics.com