A compact hopper for weighing and mixing virgin and crushed resin is assembled into the dryer for primary loading. Virgin and crushed resin are alternately fed to the scale via a branch valve and weighed as they pass a proximity switch. Resin is then mixed by screw rotation. Mixing ratios are freely and easily set by button operation, and the scale and mixer are enclosed in a glass tube so that mixing consistency can be easily checked. Moreover, the hopper can be attached to the dryer or separated for standalone operation, and the mechanical structure makes it easy to maintain.
The NS series dryer can switch between a Normal Mode that provides high efficiency resin drying and an Energy-saving Mode” that reduces dehumidifying air injection rate by about 40%. This enables users to match operating efficiency to resin characteristics, as the “normal mode” can be used for engineering plastics and other resins that require thorough drying, and the “energy-saving mode” can be used for general-purpose resins, etc.
The NS series can supply dried resin stock to 2 -- 4 molding machines using multiple feed branch lines and air branch valves.
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 NS-10G and NS-15G.
●The standard conveying distance is given for one-way suction of PC over a STOLZ hose.
NS-25G, NS-50G | ||
Conveying distance | m | 10 |
Performance increasing rate | % | 50 |
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
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.
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
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.
NS-10G, NS-15G | NS-25G, NS-50G | ||
Bolt pitch | mm | 58 x 58 | 80 x 80 |
Bolt standard | M6 x 4 | M8 x 4 | |
Feeding port dia. | mm | 38 | 50 |
Dried stock can be fed to molding machines (secondary conveying) from above.
Operating circuit voltage is changed to 100 V to increase safety.
Specify hose length for non-standard applications.
Select molding machine hoppers of nonstandard sizes and configurations.
Loder LK Hopper ZH/ZM
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.
The below control and alarm options are available to choose from.
●Starting/Stopping from remote
●External alarm output
●Drum stock low alarm
●Heater disconnection alarm
●Communication capability (232C→RS485 conversion and output)
The standard power cable is 4 m long, but other lengths are available.
Provide samples if desiring colors other than the STOLZ standard color (shown in photos).