gravimax blenders & dosimax...

Precision Blending

GRAVIMAX Blenders & DOSIMAX Feeders

Volumetric Dosing SystemsContinuous output from 70 g/h to 180 kg/h

Gravimetric Dosing SystemsDosing power up to 2150 kg/h

For Injection Molding and Extrusion

Single- and Multi-Component Dosing

Most Simple Operation and Cleaning

Gravimetric Blending SystemsDosing capacities up to 5,000 kg/h (11,000 lbs./hr.)

Single and Multi-Component Volumetric Blending SystemsContinuous output from 70 g/h to 180 kg/h (2.5 oz./hr. to 400 lbs./hr.)

For Injection Molding, Blow Molding and Extrusion

Simple Operation and Cleaning

Engineered to Be the Ultimate in Precision Blending

Large removable access windows

Removable large and small material hoppers

Unique metering pinch valves for consistent batch-to-batch accuracy(Real Time Live Scale “RTLS“)

High precision 24 bit technology load cells

Efficient mixer for homogenous blending

Easily removable safety door for clean out

Easily removable scale hopper

Long life air cylinder andsolenoid valves

Very Simple Operation

The user-friendly multi-task control ismenu driven providing:- Percent preset – ingredient values entered in % desired- Display operating conditions- Material identification data base- Recipe storage- Preset batch count- Miscellaneous reports

Unique MeteringPinch Valves - Dispense major and minor ingredients- Each valve consists of a sleeve and pinch bars which are not affected by the types of plastics processed, such as abrasive, dusty or irregular shaped materials- Extremely fast, efficient and reliable, these pinch valves precisely meter each material to the desired set point con- sistently

Fast Clean Out Feature Reduces Downtime - Large removable access window- Removable safety doors with quick release latches- Easily removable scale hopper for access to mixing chamber- Removable mixing paddle and stainless steel liner for efficient cleaning

Lids with hole pattern for mounting of WITTMANNFEEDMAX loaders

Material hoppers withhandles for easy handling

RTLS Technology

Material Savings Reduce Cost

90%

100%

90%

100%

90%

100%

1. 2. 3.

A unique 3-stage metering method achieves the most precise dispensing for batch-to-batch consistency and accuracy. This is accomplished by using progressively smaller dispensing algorithms to approach the target weight. Only one standard high precision valve is used for pellets, regrind and powder.

Step 1.Free-flow:Quick dispensing to near target weight.

Step 2.Coarse Pulsing:Controlled quick dis-pensing to be within grams of target weight.

Step 3.Fine Pulsing:Controlled high frequency dispensing precisely to target.

Batch-to-batch accuracy means no overuse of high cost resins, optimizing the material consumption for the product requirement. Every batch is consistent and to the desired formula. No “hunting“ or statistical averaging to achieve the required target.

0

1

2

3

4

5

6

5 10 15 20 25 30

[Lotti]

[g]

Wittmann

Concorrenti

Free-flow

Coarse pulsing

Fine pulsing

Where do the savingscome from?

By ensuring batch-to-batch accuracy by means of RTLS (Real Time Live Scale) techno-logy the operator can set the percentages to the required minimum level. As competitive blending methods are constantly overdosing and underdosing the minimum needs to be set to allow any underdosed batch to still be at the requested percentage. This results in overdosing all other batches, sometimes even significantly, causing tremendous excess material usage. RTLS can pay for itself in just a couple of months!

In the above example, a blend of 1.8 g has been set. Real data demonstrates thedifference between RTLS and competitive methods.

GRAVIMAX Blender GMX Series 1


Up to 130 kg/hr (295 lbs./hr.) throughput

Up to 340 kg/h (750 lbs./hr.) throughput GMX 34R with optional minor ingredient hoppers

GMX 14R

Fast Clean Out Features for Minimum Downtime

Entire transparent polycarbonate front panel is easily removed to access and clean weigh hopper, mixing chamber and mixing paddle.

Stainless steel weigh and mixing chambers are easily removed for cleaning.

All hoppers are removable for easy cleaning or color change.

Batch Size 1 kg (2.2 lbs.)

Pinch Valve 50 mm (2“)

Lid prepared forFEEDMAX200 Series

Max number of Dosings

4

Bin Size 1–4 8 l (10 lbs.)

Batch Size 3 kg (6.6 lbs.)




4



GRAVIMAX Blender GMX Series 18 and 27


Up to 455 kg/hr (1,000 lbs./hr.) throughput

Up to 545 kg/hr (1,200 lbs./hr.) throughput

Up to 5,000 kg/hr (11,000 lbs./hr.) throughput Engineered solutions for up to 4,500 kg/hr(10,000 lbs./hr.) throughput

GMX 56

GMX 98

Floor stand mezzanineFloor stand

Batch Size 9 kg (20 lbs.)




8

Bin Size 1–4 79 l (100 lbs.)






8

Bin Size 1–4 147 l (180 lbs.)






8

Bin Size 1–4 158 l (200 lbs.)



Pinch Valve 50 mm (2.5“)



6



Standard Features

Gravimetric Control of Up to Eight (8) Components

Pinch Valve Technology Precise metering through Adaptive Control algorithms

RTLS (Real Time Live Scale) Measurement For consistent batch-to-batch accuracy

“On the Go“ Feature Change recipes and parameters without stopping production

Reports Cycle, total run and inventory reports

Connectivity Options Wireless intranet and LAN connectivity, compatible with central PC systems, laptops and PDAs

Smart Regrind Mode Optimizes regrind use by monitoring availability

Algorithms Anti-bridging algorithm to prevent material buildup, Auto Tuning Dispense algorithm for each valve (HRBplus)

Menu Driven Format All selections are easily and quickly accessed

Percent Preset Each ingredient value entered in %

Unit Values Operates in metric or imperial

Display Operating Conditions Displays the recipe running, process rate and batches processed

Materials Identification Alphanumeric key pad

Recipe Storage 100 recipes stored on the local memory

Preset Batch Count Blender will automatically shutdown when count is achieved

Mixing – Timed or Continuous

Communication Ports Ethernet communication, optional

Reports Continuous batch cycles, Total batches, Inventory and Stored Recipes

Security Multi-level password, Administrator and User

Sturdy Heavy-Duty Construction Frame, hoppers, scale and load cell assemblies designed for durable operation

Control Panel Standard electrical components for reliable operation and easy maintenance

Power Supply 110 V / 240 V / 1 / 50–60 Hz

XLB Blender Control

WITTMANN‘s Blender Control –Designed for Simplicity, Ease-of-Useand High Efficiency

The large easy-to-see buttons on the touch screen make it easyto operate in all types of light conditions and ensures the operatorhas a large surface area to make changes or adjustments in theoperation of the blender.

XLB Screen

XLB Control

Special Features - Off-the-shelf PLC microprocessor controller- One XLB control panel can handle multiple gravimetric blenders to reduce the overall cost of controls

GRAVIMAX Blender Selection

Extrusion Yield Control

Model Description Batch Size Capacity

kg lbs. kg/hr lbs./hr.

GMX 12R 2 Materials 1 2.2 160 352

GMX 13R 3 Materials 1 2.2 145 319

GMX 14R 4 Materials 1 2.2 130 286

GMX 32R 2 Materials 3 6.6 500 1,100

GMX 33R 3 Materials 3 6.6 362 800

GMX 34R 4 Materials 3 6.6 340 750

GMX 34 4 Materials 3 6.6 340 750

GMX 35 5 Materials 3 6.6 263 580

GMX 36 6 Materials 3 6.6 226 500

GMX 54 4 Materials 5 11 615 1,350

GMX 55 5 Materials 5 11 500 1,100

GMX 56 6 Materials 5 11 455 1,000

GMX 94 4 Materials 9 20 1,130 2,480

GMX 95 5 Materials 9 20 900 1,980

GMX 96 6 Materials 9 20 815 1,790

GMX 97 7 Materials 9 20 680 1,496

GMX 98 8 Materials 9 20 545 1,200

GMX 184 4 Materials 18 40 2,495 5,500

GMX 185 5 Materials 18 40 1,995 4,400

GMX 186 6 Materials 18 40 1,770 3,900

GMX 187 7 Materials 18 40 1,590 3,500

GMX 188 8 Materials 18 40 1,495 3,300

GMX 274 4 Materials 27 60 2,955 6,500

GMX 275 5 Materials 27 60 2,600 5,700

GMX 276 6 Materials 27 60 2,500 5,500

GMX 277 7 Materials 27 60 2,400 5,300

GMX 278 8 Materials 27 60 2,300 5,100

Model Description Batch Size Capacity

kg lbs. kg/hr lbs./hr.

Special features: - Maintains gauge, width and layer composition of the final film product- Controls all line operating parameters including temperatures, co-extrusion layer ratio and haul-off speed (line speed)- Maintains the desired temperature profiles for all extruders and die zones according to the recipe of the product being made (optional low cost feature)- Controls extruder speeds according to the gravimetric monitoring of the material flow and desired gauge of every layer in the multi-layer film structure- Performs gauge profile monitoring (optional, requires infrared or ultrasonic sensor)- Provides real time trending for all major line parameters- Unlimited recipe storage on the local Flash memory- Performs alarms monitoring- Build-in data historian (requires external relational database)- Generates reports (per roll, order, shift, etc.)- Screen size: 10 inches

Excel Series XLCP-220Mono Layer & Co-Extrusion Yield Control

Yield The XLCP-220 controls extruder speeds according to gravimetric monitoring and maintains gauge and layer composites of the final film product.

Blending Exact blending every time with continuous monitoring of the weigh scale during the dispensing of each batch.

Loading The XLCP-220 can handle virtually unlimited numbers of loaders and pumps optimizing the loading process to the full extent.

Power Supply 110 V / 240 V / 1 / 50–60 Hz 24 VDC communication cable

DOSIMAX Semi-Gravimetric Dosing Systems

DOSIMAX Table

Calibrator for MC 30DOSIMAX MC 30

Set % for injection molding and extrusion

Timer and relay mode for injection molding applications

Tachometer synchronization for extrusion applications

Keyboard lock: 4 levels

Integrated conveying control

Data memory for production and machine configuration

Full graphic LCD display with backlight

Man/machine interface via keypad foil

Neckpiece with cleaning door

Quick material discharge slide gate

2. The calibration result will be automatically saved.

3. Place the dosing unit on the neckpiece and the volumetric feeding starts with the exact settings.

1. Place the dosing unit on the calibrator and enter the production values.

Function MC Basic MC 12 MC 18 Calibrate

MC 30 Auto MC Balance MC Twin MB/ Regrind

Feeding principle volumetric volumetric volumetric volumetric + optionalgravimetric calibration

gravimetricloss-in-weight

gravi-/volumetricloss-in-weight

Calibration manual manual manual gravimetric intelligentor manual

complete grav.or manual

complete grav.or manual

Control functions

Revolution set manual manual manual automaticor manual

automaticor manual

automaticor manual

Time set manual

manual manual automaticor manual

automaticor manual

automaticor manual

Automatic dosingtime synchronization • • •

Extruder “Tachometer” Mode • • • •Set % additive for injection molding • • •Set % additive for extrusion • • •Additive for calibration mode • • •Production memory 1500 config. 1500 config. 1500 config.

Production records 2 x 24 hours 2 x 24 hours 2 x 24 hours

Interface communication via Ethernet • • •Interface communication RS 232/485 ° ° °Keyboard lock 1 Level 1 Level 1 Level 4 Levels 4 Levels 4 Levels

Integrated conveying control • • • •Material/Feeding capacity

Micro granules or free flowing powder • • • • • •BASIC-System 0.2 to 7 g/s • • • • • •GLX System* 0.07 to 1.6 g/s ° ° ° ° °GX System* 0.2 to 7 g/s • • • • • •A 20 System** 0.5 to 20 g/s ° ° ° •A 30 System** 2 to 50 g/s ° ° ° °

• = Standard; ° = Optional; *determined with master batch granules (bulk density: 0.81 kg/dm3); **only in combination with HT stepper motor

Specifications subject to change without notice.

DOSIMAX Volumetric Dosing System

Digital revolution setting from 0 to 200 rpm within 0.1 rpm steps

Digital time setting from 0 to 999 sec. within 0.1 sec. steps

Timer mode for injection molding applications

Keyboard lock: 1 level

4-digit, 7 segment LED at front display


DOSIMAX MC 12 and MC 18

DOSIMAX MC 12 Digital revolution setting from

0 to 200 rpm within 0.1 rpm steps


Timer and relay mode for injection molding applications






Dosing Cylinder

DOSIMAX MC 18 Digital revolution setting from

0 to 200 rpm within 0.1 rpm steps


Tachometer synchronization for extrusion applications

Constant dispensing through automatic adjustment of rotation speed

Integrated conveying control






DOSIMAX MC 12/18

DOSIMAX MC Basic

MC 12/18 Control

MC Basic Control

0.350

0.400

0.450

0.500

0.550

Common Dosing Augeragainst Dosing Cylinder

0.600

number of shots

g/sh

ot1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

DOSIMAX MC Basic

Many applications for the processing of additives and colors require small and repeatable material additions within tight tolerances. The dosing cylinder guarantees a uniform and repeatable flow throughout a wide range of applications.

Because of the constant speed of rotation, the dosing cylinder is actuated by a stepping motor. The specific design guarantees that the master batch is blended uniformly and precisely. The avoidance of any pulsing during blending provides maximum control of the process and the end product.

Wittmann – Automation and Auxiliaries for Plastics Processing

Wittmann – Your trusted partner

Your Single Source Supplier for:

Robots and AutomationAutomatic Material Handling and DryingMold Temperature ControlGranulators and RecyclingGravimetric Blenders

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WITTMANNKUNSTSTOFFGERÄTE GMBHLichtblaustraße 101220 Vienna, AUSTRIATel : +43-1 250 39-0Fax: +43-1 259 71 [email protected]

WITTMANN INC.1 Technology ParkTorrington, CT 06790, USATel.: +1-860 496 9603Fax: +1-860 482 [email protected]

WITTMANN ROBOT(KUNSHAN) CO. LTD.No. 1 Wittmann Rd.DianShanHu TownKunshan City, Jiangsu Province215345 CHINATel.: +86 (0) 512 5748 3388Fax: +86 (0) 512 5749 3199www.wittmann-robot.com.cn

gravimax blenders & dosimax...

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