Dynamelt™ D Series - Adhesive Supply Unit
Dynamelt D Series ASU (Adhesive Supply Unit) is available in five hopper (tank) sizes and with a choice of dual or single gear pumps.
Overview
The Dynamelt D Series features ITW Dynatec’s patented no-char, Melt-On-Demand System.
The ASU uses a microprocessor temperature control to closely control the temperature of hot melt adhesive for up to 8 hose standard and precision metered outputs.
Downloads
Features
- Up to four drives / four gear pumps permit up to 8 metered outputs.
- Standard or precision metered outputs are available.
- User-friendly LCD or Touchscreen controls with multi-lingual display.
- Dynacontrol™ P.I.D. digital temperature controller with platinum sensor accuracy.
- 10 combinations of hopper sizes and melt rate selections.
- Digtal Pressure Transducer
- Pneumatic Pressure Relief Kit
- High Temperature Kit
- Adhesive Level Sensor
- Multi System HMI Software License
- Interfaces: Profinet, Profibus, EtherCAT, Ethernet-IP, CC-Link
The Dynatec Difference
Adhesive degradation is recognized as the number one cause of downtime on hot melt equipment. To address this problem, ITW Dynatec has patented a “Melt-on-Demand” system. ITW Dynatec’s vertical, unheated hoppers (tanks) only melt the amount of adhesive required by the application. Most of the hot melt adhesive in the hopper remains at a much lower temperature, perhaps even solid state. The added benefits of melting only the adhesive required are quicker start-ups, reduced energy costs, better viscosity control, and reduced fumes.
Melt-On-Demand Hopper:

- Less Energy Consumption – The Dynamelt uses less energy than conventional equipment by heating only the adhesive in the lower portion of the hopper. There is no need to waste energy and manufacturing time melting/maintaining the entire contents of the hopper.
- Operator Safety – The adhesive in the top of the hopper remains in a cooler, often solid state and reduces the operator’s potential for burns. Also, adhesive splash-back when filling the hopper is reduced.
- Faster System-Ready – The Dynamelt Series does not have to melt all of the adhesive, so it is ready for operation much faster than conventional equipment.
- Adhesive Degradation is Greatly Reduced – By only melting the required amount of adhesive, the common problem of charring is minimized. When adhesive is replenished using conventional equipment, the solid, more dense adhesive falls to the bottom of the hopper causing older glue to move to the top of the hopper. By doing this, adhesive is subject to longer heat exposure which is one of the main causes of char. This does not happen with Melt-On-Demand. The molten glue at the bottom of the hopper is used first. Another important benefit is that all of the heat is applied at the bottom of the hopper using Melt-On-Demand, so char build-up on the side walls of the hopper is minimized.
- Reduced Maintenance – With Melt-On-Demand, equipment maintenance will be reduced. Frequency of Periodic hopper draining to purge char is greatly reduced, and filter and nozzle clogging will be reduced as well.
⊕ For more information see Melt-On-Demand page and Video.
Adhesive Delivery System:
ITW Dynatec also offers hot melt adhesive feeders to automatically transfer dry, pelletized hot melt adhesive from a bulk container to the adhesive supply unit. For more information click here!
Technical Data
| System | D15 | D25 | D45 | D50 | D90 |
|---|---|---|---|---|---|
| Hopper Capacity | 15kg (33lbs) | 25kg (55lbs) | 45kg (100lbs) | 50kg (110lbs) | 90kg (200lbs) |
| Operating Temperature | 38 to 218°C (100 to 425°F) | ||||
| Melt Rate (per hour)* | 23 kg/h (50 lbs/h) | 46 kg/h (100 lbs/h) | |||
| Melt Rate (per hour)* – W/Optional Grid | 41 kg/h (90 lbs/h) | 82 kg/h (180 lbs/h) | |||
| Melt Rate (per hour)* – 2 Optional Grids | – | – | 59 kg/h (130 lbs/h) | – | 118 kg/h (260 lbs/h) |
| Gear Pumps Standard | 0.15 – 10 cc/rev | ||||
| Gear Pumps / Drives | 1-2 | 1-4 | |||
| Hose Output Zones** | 2-6 | 2-8 | |||
| Maximum Working Hydraulic Pressure | 68 bar (1000psi) | ||||
| Temperature Control Stability | ±1°C | ||||
| Supply Voltage setup 1 | 200 to 240 VAC 3Ph Δ 50/60Hz | ||||
| Supply Voltage setup 2 | 380 to 400 VAC 3Ph Y 50/60Hz | ||||
| Operator Interface | Icon-based Keypad w/ LCD or Touchscreen | ||||
| Maximum Wattage | 19,100 W | 21,600 W | 24,100 W | 43,200 W | 48,200 W |
| Adhesive Viscosity range (reduced melt-rate) | 1,000 to 50,000 cps (50,000 to 100,000 cps) | ||||
| Dimensions | D15 | D25 | D45 | D50 | D90 |
|---|---|---|---|---|---|
| Height (H) | 133 cm (52.4 in) | 133 cm (52.4 in) | |||
| Depth (D) | 97.5 cm (38 in) | 97.5 cm (38 in) | |||
| Width (W) | 52 cm (20.5 in) | 104 cm (41 in) | |||
| Optional Accessories |
|---|
| High accuracy gear pumps |
| Adhesive low level indicator |
| KBSI signal isolator |
| Ethernet communications |
| Analog or digital adhesive indicator |
*Melt rates vary with adhesive type. 200/240 VAC, 50-60 Hz, 3-phase delta nominal or 400 VAC, 50-60 Hz, 3-phase wye nominal.
**Four hose/head zones with four auxiliary zones, or six hose/head zones without auxiliary zones. D50/90 units have eight hose/head zones with eight auxiliary zones.
