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ITW M Series

M Series Hot Melt Bulk adhesive Supply Unit

The DYNAMELT M70 and M140 adhesive supply units (ASU) are computer-controlled hot-melt supply units designed on metric standards. They utilize Allen Bradley SLC (small logic controller) 500 systems and they interface with Allen Bradley’s PanelView touch screen control panel.

The Dynamelt M Series ASUs are available in three cabinet sizes and offer four hopper sizes. Their microprocessor temperature control unit closely controls the temperature of hot-melt adhesive for up to 8 hoses and 8 heads. The operator selects temperature set points for up to 32 zones. The system automatically provides warnings and alarms for operator errors and system malfunctions.

The Dynamelt system provides accurate, proportionate temperature control for the hopper, hoses and applicators. Sequential heating delays may be programmed for turn-on of the hoses and heads. A “standby” temperature program maintains the temperature zones at a lower temperature when the ASU is not in active use thus enabling rapid return to normal operation. The seven-day scheduler allows programmable automatic startup and shutdown of the ASU throughout the workweek. With these flexible temperature program features, the Dynamelt 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.

The SLC 500 maintains all temperature zone set points, alarms and motor parameters, as well as the scheduling parameters. The SLC’s processor (CPU) monitors the electronic circuitry and provides alarms for error conditions. A DeviceNet module provides communication to the ASU’s drives. The PanelView 600 touch screen color controller is the operator’s interface to the SLC 500 system. 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. The temperature program allows the system temperature values to be set in a simple and timely manner.

The Dynamelt M ASU uses an extremely dependable gear pump(s) to assure a smoother and higher precision flow. The single or dual pumps are driven by individual drives.

The Dynamelt’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 gauges, two drop-in grids, dual hopper, pneumatic clutches, digital pressure readout and adhesive level control.

The DM140 is also available in a high flow model.



Storage / Temperature Shipping
-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
< 60 dbA at 1 meter (39 inches)


Contact our Applications engineer
Number of heads/ hoses
1 to 8
Number of return hoses / auziliary zones
1 to 8
Number of hopper temperature zones
1 to 2
Number of pump / motors
1 to 4
Number of (optional) drop-in grids
Number of standard grids
Gear pumps
Zenith, 2.92 cc/rev standard
styled, durable metal, dust and splatter resistant
Hose connections
universal 15-pin Amphenol connectors at asu, wrench-secured fluid fittings (#6 JIC)
Hopper (tank) capacity
210 kg/ 420 lb
Hopper construction
machined welded aluminum, Teflon impregnated
hopper bottom screen, large pleated pump outlet filter
Weight, empty
Adhesive form
accepts most forms


Supply voltage
200-240 VAC/ 3p/ 50-60 Hz 380 VAC/ 3p (“Wye”, “Y” or 5-wire connection)/ 50-60 Hz
Minimum supply amperes
see circuit breaker size
Power consumption, hopper
10,000 watts
Power consumption, 2 drop-in grids
5,000 watts
Hopper heater type
cast in
Temperature control
microprocessor-based proportional integral derivative (PID)
Temperature sensors
100 Ohm Platinum RTD standard 120 Ohm Nickel RTD optional
Electrical connectors
durable, latching connectors
1/2 hp, alternating current motor, totally enclosed, fan cooled , direct drive vertical orientation, right angle gearbox
Maximum current available for each hose or head
10 ampere

ITW Dynatec c. 1999 DYNAMELT S ASU Manual #20-31 Page 2-3 Revised 12/02


Adhesive temperature control range
40°C to 232°C (100°F to 450°F)
Standby adhesive temperature
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
232°C (450°F)
Adhesive viscosity
500 to 50,000 cps
Warm-up time, full hopper
approximately 0.5 hour
Typical adhesive melt rate (depends on adhesive used)
DM M70 = 27-95 kg/hr (59-209 lb/hr) DM M140 = 34-115 kg/hr (75-253 lb/hr)
Adhesive pressure
up to 68 bar (1000 psi) maximum

Temperature Control

RTD input board
4 zones per board, modular construction
Line speed inputs
1 to 4
Temperature control zones
32 maximum with solid state relays

Power Output

10,000 watt
1200 watt
Applicator head
1200 watt
2000 watt
Solid state relay input
3-15 VDC

Power Other

Operator interface
Panel View 600, color
Temperature standby
High and low temp alarms
High and low temp alarms
Ready interlock
Sequential heating
yes (hopper, hose, head staged heating)
Sensor open alarm
RS232 and RS485 communication capable
Seven-day scheduler
High temperature capable
RPM display
Alarm & system ready outputs (120v)
SLC 5/04 CPU 32K
DeviceNet module
Standby & E-stop inputs (120v)
Remote On/Off (120v)
CE approval