Outstanding energy-saving performance
Reduce energy consumption of the entire workplace
- Thermal efficiency has been boosted
by incorporating a heat exchanger into the hot air drying system
- Exceptional energy-saving performance is obtained by reducing power consumption
and decreasing air conditioning demand by minimizing waste heat.
- Long life and energy-saving because of ceramic heaters
- More stable temperature control owing to SSC heater control
- #400 polished SUS304 inside of the drying drum
■ High performance heat exchanger incorporated
Dryers of the NF series incorporate a newly developed purpose-specific heat exchanger of high heat exchanging efficiency. The hot air used to dry resin is cooled by an intaken outside air which absorbs the heat thus ensuring release at low temperature. Because heat energy is circulated inside the dryer, the system greatly reduces power consumption and lessens the amount of heat exhausted into the workplace.
■ Heat Exchange System
A system has been adopted to exchange heat by feeding hot air exhausted from the drying drum and outside air sucked in by the blower through a heat exchanger of high thermal conductance. Stock is dried using a continuous supply of hot circulating air.
■ Open conveying system
The open conveying system draws in secondary air from suction nozzles to provide secondary conveyance to the molding machine. Together with a simple mechanical structure, the system is economical.
■ High energy-saving performance
Because drying air is warmed first by the heat exchanger, heater power consumption is greatly reduced. Power consumption is greatly reduced in comparison to competitor dryers of the same loading capacity.
■ Energy-saving effect felt across the entire work floor
The hot air after drying is cooled by the heat exchanger before release into the factory, therefore the rise in room air temperature is kept down, hence reducing air conditioning demand. The energy-saving effect is high when several NF series machines are introduced throughout the factory.
■ Easy maintenance
The drying drum is structured with wide openings at the top and side so that stock loading and maintenance are speedy and easy.
■ Stock feeding to 2 -- 4 molding machines
The NS series can supply dried resin stock to 2 -- 4 molding machines using multiple feed branch lines and air branch valves.
■ Higher powered blower
Feed blower capacity can be increased if the standard dryer has trouble supplying molding machines because of longer conveying distances or heavy resin weights.
●Not applicable the NF-15.
●The standard conveying distance is given for one-way suction of PC over a STOLZ hose.
| NF-25 -- NF-75 | NF-100, NF-150 | ||
| Conveying distance | m | 10 | 20 |
| Performance increasing rate | % | 50 | 50 |
■ 2-stock suction valve ZB-13
Two types of stock such as virgin material and crushed material can be simultaneously loaded into the same dryer using the ZB-13 branched suction valve.
And, the ZB-13 can be externally connected to a dedicated independent controller. This makes it easier to monitor suction status, etc.
2-stock suction valve ZB-13
■ Low stock level gauge
Material depletion in the drying drum caused by trouble in dryer feed (primary loading) is signaled by a buzzer and warning lamp (ordered separately). See “Warning lamp” to choose a warning lamp.
■ Line filter GF-20-002, GF-25-002
A line filter can be installed on the molding machine hopper to thoroughly remove dust. Applicable models are GF-20-002 and GF25-002.
The GF25-002 incorporates powerful magnets for removing even iron dust.
Line filter GF/GX
■ Hopper plate and attachment for installation on molding machine
An installation plate and attachment are separately needed to install the hopper on molding machines that do not meet the standard specifications shown in the table, therefore indicate those specifications when ordering.
| NF-15 | NF-25~NF-150 | ||
| Bolt pitch | mm | 58 x 58 | 80 x 80 |
| Bolt standard | M6 x 4 | M8 x 4 | |
| Feeding port dia. | mm | 38 | 50 |
■ Top-down feeding line
Dried stock can be fed to molding machines (secondary conveying) from above.
■ 100 V operating circuit
Operating circuit voltage is changed to 100 V to increase safety.
■ Hose
Specify hose length for non-standard applications.
■ Molding machine hoppers
Select molding machine hoppers of nonstandard sizes and configurations.
Loder LK Hopper ZH/ZM
■ Warning lamp
If requiring a warning lamp for the "Low stock level gauge", select from the below types.
●Compact rotating lamp (Pedestal type):
Can be pole-mounted (billed separately). Select from amongst 4 colors; Red/Yellow/Green/Blue.
●Compact rotating lamp (Direct coupling type):
Available with buzzer. Select from amongst 4 colors; Red/Yellow/Green/Blue.
●Integrated signal tower:
Signal tower built for LED lighting and flashing. Available in 1-, 2- and 3-color types with a buzzer. Select from amongst 5 colors; Red/Yellow/Green/Blue/White.
■ Power cable
The standard power cable is 4 m long, but other lengths are available.
■ Color
Provide samples if desiring colors other than the STOLZ standard color (shown in photos).
