SP300 polyurethane PUR manual mixing head, high-pressure spraying head and mixing heads

FEATURES

Solvent-free, mechanically self-cleaning spray head
Pure metal seals, low maintenance
No solvent, no flushing waste
Airless spraying process for a compact spray coating with excellent mechanical properties
Processing of highly reactive systems with pot lives from 1 second

TECHNICAL DATA

Designation
SP300

Weight
1.4 kg

Dimensions L x W x H
201 x 70 x 198 mm

Ambient conditions, emissions
The requirements for the metering system apply.
An extraction booth with an appropriate extraction capacity is recommended for spraying applications.

Number of mixing chambers and volumetric flow rate in l/min (depending on viscosity)
2 = 0.6 – 0.8 Volumetric flow rate l/min
3 = 0.8 – 1.7 Volumetric flow rate l/min
7 = 1.7 – 2.5 Volumetric flow rate l/min
4 = 2.5 – 3.5 Volumetric flow rate l/min
5 = 3.5 – 5.5 Volumetric flow rate l/min
8.4 = 5.5 – 7.5 Volumetric flow rate l/min
8 = 7.5 – 10 Volumetric flow rate l/min

Subject to technical changes
without prior notice.

Datenblatt

Constant high pressure
before spraying

The metering unit builds up pressure. The lead pressures inside the mixing head rise to up to 200 bar.

The nozzle needle (A) keeps the mixing chamber (B) closed and the POL, ISO components are pressurised on both sides of the no zzle needle (A) in the side bores (C).

Metering during spraying

When the shot is released (by actuating the trigger), the nozzle needle is pulled behind the side bores. The mixing chamber opens and the two POL, ISO components are pressed through the side bores into the mixing chamber under high pressure. The resulting high speed ensures intensive mixing when the components collide (impingement mixing). The mixed components flow out of the outlet opening.

Constant high pressure
after spraying

When the shot is completed (by releasing the trigger), the nozzle needle closes the side bores and stops the component flows. The nozzle pin ejects the residual mixture and thus cleans the mixing chamber.