Witte EXTRU Gear Pump

Code: EXTRU

Brand: Witte

Melt pumps for extrusion

The extrusion gear pump is mainly used in connection with extruders or kneaders. They lower the naturally existing pulsation and uneven transportation, particularly of single-screw extruders. The extrusion pump is also used as a melt pump. It takes over the establishment of the required transport pressure, which is needed for the downstream equipment.

Efficient pressure build-up

In the gear pump, the pressure build-up occur significantly more efficiently than in the extruder itself. The extruder is relieved through the use of an extrusion pump. Significantly less energy or heat is added to the polymer. The melt pump thereby contributes to the gentlest possible transportation. The EXTRU pump is indispensable for the production of precise foils or micro-granulate.

Technical data

Housing: Heat-resistant carbon steel, for example, 1.6582 · Stainless steel 1.4313 · optional with coating · optional with coating
Gear Shafts: Tool steel · Nitriding steel · Special steel · optional with coating · Helical gearing · Herringbone gearing (for transportation with very low pulsation)
Shaft seals: Threaded shaft seal · Stuffing box
Heating: Electric through heating cartridges · Cover heating optional
Friction bearing: Tool steel · NiAG (nickel-silver) · Aluminum bronze · Special materials · optional with coating

Application examples for WITTE melt pumps from the EXTRU series

Plastics: PS · PET · PVC · PC · PMMA · HDPE · LDPE · LLDPE · PP · PEEK · POLYSULFONS · LICORICE · CHEWING GUM

Witte Datasheets

Country & Language	File Name	Download Link
United States (English)	WITTE_PB_Portfolio_EN_rev002_102019_low_b5e35a_80259.pdf	Download
United States (English)	BOOSTER_EN_728dd3_65615.pdf	Download
United States (English)	CHEM_MINI_EN_b374a5_23763.pdf	Download
United States (English)	EXTRU_ll_b_EN_7483ad_98230.pdf	Download
United States (English)	EXTRU_lll_EN_b99f62_70481.pdf	Download
United States (English)	Gear-pump-Rubber-applications_EN_5f3459_23113.pdf	Download
United States (English)	WITTE_PB_CHEMIE_24Seite_EN_rev002_102019_low_cbff83_74636.pdf	Download
Deutschland (Deutsch)	BOOSTER_DE_0a4c0e_95441.pdf	Download
Deutschland (Deutsch)	CHEM_MINI_DE_cfee2b_55196.pdf	Download
Deutschland (Deutsch)	EXTRU_ll_b_DE_fb703b_56959.pdf	Download
Deutschland (Deutsch)	EXTRU_lll_DE_9b0d29_58248.pdf	Download
Deutschland (Deutsch)	Gear-pump-Rubber-applications_EN_6985fb_23576.pdf	Download
Deutschland (Deutsch)	WITTE_PB_Chemie_DE_S24_rev002_102019_low_9adffe_53999.pdf	Download
Deutschland (Deutsch)	WITTE_PB_Portfolio_DE_S28_rev002_102019_low_5b1b2a_11492.pdf	Download
中国（简体	BOOSTER_CN_30ffc1_63664.pdf	Download
中国（简体	CHEM_CN_a32dff_39653.pdf	Download
中国（简体	CHEM_MINI_EN_be5f9b_61949.pdf	Download
中国（简体	EXTRU_ll_b_EN_fa4bd2_94454.pdf	Download
中国（简体	Folder_Company_CN_f79efb_25715.pdf	Download
中国（简体	Folder_Extru_III_CN_4c4a4d_50187.pdf	Download
中国（简体	Gear-pump-Rubber-applications_EN_b4f201_68501.pdf	Download