2 Introduction
2.1 Description
The KB30, KB50 and KB100 Series of heavy-duty melt units
supplies hot melt adhesive in a wide range of applications. The
tank capacity of these melt units is 30, 50 and 100 pounds. A wide
range of options affords choice of pump and motor size, thermostat
or solid-state temperature controllers, and head firing or gun/hose
configuration.
All units operate on single-phase AC power with models available
for 230 VAC power sources. These units operate up to five (KB30)
or six (KB50 and KB100) automatic or two manual applicators and
are supported by a complete range of pattern control accessories.
The basic melt unit includes a melt grid and filter block assembly.
Pump filter must be ordered separately.
2.2 Features
All-electric models operate from 230 VAC power source.
No compressed air required.
1 to 2 hoses – handguns. 1 to 5 (KB30) or 6 (KB50 and
KB100) hoses – automatic applicators.
Temperature control options range from thermostat to
microprocessor.
High torque, high rpm motors for low maintenance and long
life.
Reliable, smooth output gear pumps to handle a wide range of
materials.
Teflon-lined melt tank reduces adhesive char and minimizes
degradation buildup.
Finned melt grid in tank bottom increases melt rate for fast
warmup and continuous melting.
High performance pump rates up to 395 lb/hr (179 kg/hr).
Supported by high performance pattern controllers, head
drivers, and automatic flow controllers.
System power circuit breaker protects the entire system from
overload.
Tank-mounted overtemperature switch backs up the tank
thermostat in case of a tank thermostat failure.
Circuit breaker protects the pump motor by opening the pump
motor circuit during a stall or an overload condition.
Melt tank is also equipped with a pump warm-up switch, for
the protection of the pump-drive mechanism.
4 KB30, KB50 and KB100 Series Hot Melt Units 19600-159 Rev. A 04/09/09 © Copyright Astro Packaging 2009
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