Melt Pumps

Harden melt pumps process a wide range of different polymer grades without affecting their quality. Reliable, requiring little maintenance and robust enough to withstand the rigors of years of operation is Harden melt pumps the ideal solution for such applications.
Technical specifications
housing and endplates: | Alloy steel |
Gear shafts: | Nitrated tool steel |
Bearing: | Tool steel |
Shaft seals: | carbon steel |
Pump heating: | Heaters, with liquid inlet and outlet temperature control |
Installation: | For vertical, direct installation to vessel |
Viscosity: | Up to 30’000 Pas – strongly depending on pump size |
Temperature: | Up to 350 or 400°C-depending on pump size |
Inlet pressure: | 0-160 bar |
Outlet pressure: | Up to 350 bar |
Parameter
Pump size | Spec.volume(ml/rev) | Capacity(kg/hr) | Excuder screw diameter(mm) | Width of meltblowm(mm) | Power(kw) |
RTP-15 | 17.5 | 31.5 | 45-65 | 600\800\1200 | 2.2 |
RTP-30 | 31.5 | 56.7 | 65-90 | 1200\1600 | 2.2 |
RTP-65 | 65 | 117 | 105 | 2400 | 3 |
RTP-100 | 104 | 159 | 125 | 3200 | 5.5 |

Pumping media:
•PET / PBT
•Polyamide, Polycarbonate
•Cellulose acetate, Polyacrylonitrile
•Silicone / Oil additives
•SBR Latex / Epoxy resin
•Phenolic resin, Polymethylmethacrylate
•Polystyrene (incl. ABS, EPS)
•Polysulphone
•Elastomers / Polyolefin
•And others