The HASCO mini hot runner system H7000/..., H7001/
has been developed for direct injection moulding,
without gating, of small parts and micro-parts.
4, 8 or 16 articles with part weights of 0.05 to 2 g can
be injected in the narrowest work area, the total shot
weight per system not exceeding 20 g max.

Uniform part fill is ensured by a natural balancing of the
systems. The minimum cluster spacing is 8mm. The
HASCO mini hot runner system is highly suitable as a
single system for use in micro-tools for mini injection
moulding machines. The design is tailored to match
standard micro injection moulding machines, such as
Babyplast.

The modular structure of the systems also enables, in
combination with the established HASCO hotrunner
manifolds Z106/... and H 4010/..., multiple applications
up to 64 drops to be realised at an attractive price.

The two dimensional sealing principle in the gate area
ensures secure sealing and guarantees compensation
for the radial expansion of the manifold, without causing
stresses resulting from impeded heat expansion.

The nozzle tips used, which are screwed directly in the manifold,
ensure optimum heat conduction right into the gate. Micro-gate
diameters upwards of 0.4 mm can be implemented. The tip
material TZM combines very good heat conductivity with
excellent resistance to wear.

Heating is via a specially designed, centrally arranged
cartridge heater. Yet this is not a conventional interior
heated system. The melt is provided with the complete
runner cross-section: there are neither solidified edge
layers nor contact between the heating element and plastic
melt. This prevents pressure loss and makes the colour
change significantly easier. Combination with a
replaceable thermo-sensor enables optimum
homogeneity of the temperature profile to be attained,
resulting in a minimum of control expense per system.

The programme is rounded off with a range of connecting
elements such as load and sensor wrap connections.

In conjunction with a newly developed feed bushing with
strip heater, a further variant of the hot-runner system
(H7001/...) can also be used in standard mould structures
and mould sizes from 156 x 156 mm upwards. This enables
utilisation of the advantages described, even in traditional
mould size ranges.

The H7000 is a technologically impressive solution for the
cost effective implementation of applications in the small
and micro field. And, of course, the modular structure of the
systems ensures tremendously easy maintenance.

Special features:
- Smallest work area with cluster spacing from 8 mm upwards
- Uniform article fill via natural balancing of the systems
- Large-area sealing for compensating the heat expansion
- Low control expense, only one control circuit per system required