| Any advanced method for the
production of sand cores boxes using mixtures containing liquid additives (resins and
catalysts) needs a reliable metering system. The binder quantities to be used in the
mixture are very small and as a consequence they have to keep as constant and precise as
possible. The best system ever used is the one using volumetric metering devices with
adjustable setting. |
| Electromac’s metering
unit D70 L belongs to this type of machines: it works in a completely automatic cycle and
has been expressly designed and made to feed the mixer for the preparation of siliceous
sand mixtures with liquid resins and catalyst to create cores with the “hot box”
system. |
| The components getting in
touch with sand, resin and catalysts are made of highly corrosion proof materials. All the
functions of the metering unit are controlled by means of limits-watches and timers while
all the movements of the various devices are highlighted on the control board through
signal lights. |
Optional
- Skimming propeller, mixing capacity 100 kg
- It is possible to have up to six different metering settings |
Advantages
- Constant metering for a homogeneous
mixture, obtained thanks to the volumetric metering cylinder designed on purpose by
Electromac
- It is possible to mix even powder resins through load cells
- Utmost resistance to the corrosion of all the parts that are in contact with sand, resin
and catalyst
- It is possible to automate up to six different metering definitions
- Easy control of every operation from the control board
- Immediate operativeness. The machine is hard-wired and ready to be used
- It is extremely easy to use. The mixer has been designed for an easy and right use even
for not skilled staff |
| Technical Features* |
|
| Tank capacity for resin |
l
350 |
| Hopper capacity for sand |
Kg
300 |
| Volumetric metering devises
capacity for resins |
cc
2000 |
| Delivery of metering pump
for catalyst |
l/h
90 |
| Mixing cycle time |
sec
180 |
Supply voltage
|
V
220/380 Hz 50 (altre tensioni/freq. a richiesta) |
|
