Metering Feeders

Spectra System
 
Spectra system meters colorants/additives directly into injection, blowmoulding machines and extruders. Hamilton’s new Spectra is a self-contained, highly versatile metering system for precise introduction of free-flowing plastics colorants or additives to base resins as they flow into your processing machine throat. Spectra eliminates off-machine tumble mixing, spillage, waste and pre-mixed inventories and provides an economical, reliable method to custom blend materials just before they are processed.

A variable -speed, D.C. motor powers a selected metering auger that volumetrically feeds colorants or additives upon a signal from either the injection or blow molding machine cycle, or in conjunction with extruder speed.

VA8VDC

Shipped ready-to-run

Variety of mounting possibilities. A colorant/additive supply bin is provided which can be automatically loaded or hand filled. The bin and metering auger mount on a special throat adapter. The bin can be removed easily for cleaning. The Spectra’s throat adapter mounts between the material hopper and the machine throat. Two Spectra’s can feed through one adapter. By simply bolting two throat adapters together, multiple metering units can be mounted on one machine. This arrangement provides for different additives to be fed at one time, or provides nearly instant color changes on a single machine without shut down for cleaning.

Fast, easy auger and color changes.

Spectra’s drive motor unclamps and swings out on a hinged mounting for easy access to the motor-driven auger. The operator can quickly change auger size for specific applications. A clean out door is provided on the high-grade alloy, cast aluminum base for quick emptying of the supply hopper.

Spectra’s supply hopper is quickly emptied through a clean out door for material changes. When the door is opened, the metering auger is disengaged as a safety precaution. A similar door is provided under the discharge end of the auger for sampling calibration. A safety grill is provided in the metering port.

Feeder-Cleanout

Optional Features

  • Brushless AC Drive
  • Digital Display (Dc drive only Standard, On AC option)
  • Thumbwheel setpoint (Dc drive only, Standard On AC option)
  • Tach Follower Control (Dc drive only, Standard On AC option)
  • Injection Control (Dc drive only, Standard On AC option)
  • Cutout¬† For loader Mounting
Feeder Auger Selection
Gram/hr Continuous Extrusion
(lbs/hr)
RPM 10 20 30 40 50 60
1/2″ 480
(1.05)
960
(2.1)
1140
(3.2)
1920
(4.2)
2400
(5.3)
2880
(6.3)
3/4″ 2400
(5.3)
4800
(10.6)
7200
(16.8)
9600
(21.1)
12000
(26.4)
14400
(31.7)
1″ 5100
(11)
10200
(22)
15300
(34.7)
20400
(45)
25500
(56)
30600
(67)
1 1/2″ 16200
(36)
32400
(71)
48600
(107)
64800
(143)
81000
(178)
97200
(214)
2″ 30900
(68)
61800
(136)
92700
(204)
123600
(272)
154500
(340)
185400
(408)

Optional ACV Brushless Drive

The ACV brushless drive option gives you the flexibility of RPM and torque combinations, packaged with a premium variable frequency inverter drive for precise control and a customized metering throughput.

Integration of features such as brushless, RPM, torque and throughput make this option package a preferred choice to the most demanding processor.

  • Micro Ac Inverter
  • Nema 4 Enclosure
  • 3 Digit L.C.D. Display
  • Injection Control (dry Contact Needed on Injection machine)
  • Tach follower function (0-2 mA Analog Signal) (4-20 mA Analog Signal) (0 –¬†10 VDC Analog Signal)
ac-control

ACV Specifications

Model HP RPM

(MAX)

TORQUE
(LB – in.)
MAX
THROUGHPUT
MAX AUGER
DIAMETER
6ACV 1/6 50 270 55 Lbs / HR 1″
7ACV 3/8 130 167 1135 Lbs / HR 2″
8ACV 3/8 250 115 1700 Lbs / HR 2″

BH Option

For applications requiring larger through puts, The Hamilton Avtec BH hopper option provides double the capacity (2 CuFt) of the standard hopper and will adapt easily to our 8 through 15 inch loaders.

FEEDERS-SYMBOL

Category: Blending

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