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DDS

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DDS Hot Melt Adhesive Supply Unit

 

Description And Specifications

The DDS Series adhesive supply units (ASU) are computer-controlled hot-melt supply units designed on metric standards. Their “all-icon” control panels, with choice of display languages, are internationally operator friendly.

Available in two hopper sizes and with a choice of dual or single gear pumps, the DDS ASU uses a microprocessor temperature control to closely control the temperature of hot-melt adhesive for up to six hoses and six heads. The operator selects temperature set points for up to 15 zones, the system provides warnings and alarms for operator errors and system malfunctions.

Its DynaControl controller provides accurate, proportionate temperature control for the hopper, hoses and applicators. Sequential heating delays provide a program for turn-on of the hoses and heads. A “standby” temperature maintains the temperature zones at a lower temperature when the ASU is not in active use, enabling rapid return to normal operation. A seven-day scheduler allows advance programming of daily On/ Off times throughout the workweek.

With these flexible temperature program features, the DDS system increases adhesive life by eliminating prolonged high adhesive temperatures. It reduces energy consumption and brings the system up to normal operating temperatures in the shortest possible time.

A four-layered, shielded CPU board protects the microprocessor from external interference. The temperature control can interlock the parent machine with pre selected adhesive temperatures so that production automatically begins when adhesive temperatures are correct for the application. All system temperature values can easily and quickly be programmed.

The system provides digital readout of system conditions and optional external audible signals or lights to alert the operator to alarm conditions. A security code can restrict access to system programs and parameters. The CPU monitors the electronic circuitry and provides alarms for error conditions.

A choice of single or dual gear pumps, from 0.584 to 8.5 cc/rev, is available to assure a smooth and highly precise adhesive flow. The pumps may be driven by a single or dual drive.

The DDS’s teflon-coated hopper accepts adhesive in all popular forms, including pellets, slugs and blocks. The ASU can accommodate air-actuated automatic applicators (heads), electric applicators, hand-held applicators and/or special applicators. Options available include pressure gauge or transducer, drop-in grid, level control, Zenith gear pumps, digital RPM readout and casters.


Specifications


Environmental:

Storage/ shipping temperature -40 ° C to 70 ° C (-40 ° F to 158 ° F)
Ambient service temperature -7 ° C to 50 ° C (20 ° F to 122 ° F)
Noise emission < 70 dbA (at 1 meter)


Physical:

Dimensions see dimensional layouts on following pages
Number of heads/ hoses 2, 4, or 6 heads/ hoses
Number of hopper temperature zones 1 or 2 (add 1 for optional drop-in grid)
Number of pumps 1 or 2, single or dual
Gear pumps (standard) 1.5cc/ rev, 3.2cc/ rev or 4.5cc/ rev
Enclosure rectangular steel, dust and splatter resistant
Hose connections universal 15-pin Amphenol connectors at asu,wrench-secured fluid fittings (#6 JIC)
Hopper (tank) capacity DDS 22 = 22 kg/ 48 lb
DDS 45 = 45 kg/ 100 lb
Hopper construction welded aluminum, cast-in heaters, TFE Teflon coated
Filtration hopper bottom screen and large pleated pump outlet filters
Weight, empty DDS S22 =123 kg/ 271 lb
DDS S45 = TBD
Fluid outputs 1 to 4 metered, 6 un-metered
Optional drop-in grids DDS 22 = 1 available
DDS 45 = 1 or 2 available
Adhesive form accepts most forms
Electrical:
Service Requirements 200-240 VAC/ 50 amp/ 3p/ 50-60 Hz/ Delta nominal 380-400 VAC/ 35 amp/ 3p/ 50-60 Hz/ Wye nominal 380-400 VAC S22 or S45 = 30 amp/ 3p (“Wye”, “Y” or
     5-wire connection)/ 50-60 Hz
Power consumption, system maximum 26,700 watts
Power consumption, hopper 2,500 watts
Hopper heater type cast-in tubular
Temperature control microprocessor-based proportional integral derivative (PID)
Temperature sensors 100 Ohm Platinum RTD
Electrical connectors durable, latching connectors
Motor 1 or 2 ,1/4 hp, alternating current motor, direct drive, horizontal orientation
Maximum current available for each hose or head 1200 watts
Maximum current available for each auxiliary 2400 watts
External electrical connectors 4 hose/ 4 head/ 4 aux
Performance: Operating temperature range 38 ° C to 232 ° C (100 ° F to 450 ° F)
Adhesive temperature control accuracy +/- 1 ° C (+/- 1 ° F)
Standby adhesive temperature range up to 80 ° C (150 ° F) lower than set point
Hopper ready adhesive temperature deviation (factory set/ field adjustable): 20 ° C (36 ° F) from set point
Over-temperature cutoff for hopper 218 ° C (425 ° F)
Adhesive viscosity 1000 to 50,000 centipoise or 50,000 to 100,000 cps at reduced melt rate
Warm-up time, full hopper approximately 0.5 hour
Adhesive delivery rate, open line 0.38 kg/min (0.83 lb/min)(4.5cc gear pump)
Typical adhesive melt rate (depends on adhesive used) DDS 22 = ? kg/hr (? lb/hr)
DDS 45 = ?kg/hr (?lb/hr)
Adhesive pressure up to 68 bar (1000 psi) maximum
Maximum recommended pump speed 90 revolutions per minute (gear pump)


DynaControl Temperature Control:

Power board 5 zones per board, modular construction
Auxiliary board 4 zones per board, modular construction
Display type long life, bright fluorescent
Temperature control zones 5-15 triac-output, can be combined with solid state relay output (optional)
Power output
Hopper: 2200 watt
Hose/ applicator head: 1100 watt maximum: 3500 watt per board
Solid state relay input 20 mA/ 12 volt
Fuses 5x20 mm, hose/ head: T6.3AL time delay


Other:

Display languages English, French, German, Spanish, Swedish, Italian, Portuguese, Japanese and Dutch
Operator interface digital display with simplified, all-icon keypad
Temperature standby yes
High and low temp alarms yes
Ready interlock yes
Password protection yes
Sequential heating yes (hopper, hose, head staged heating)
Sensor open alarm yes
RS232 and RS485 communication capable yes
Seven-day scheduler yes
CE approval yes