Precision Metering
Precision Metering
Micro Dosing Screw Pump Metering System
Micro dispensing integrated solutions have long posed technical hurdles, especially when processing intricate contoured workpieces — such as laying precise sealing beads on electronic housing shells and performing structural adhesive bonding for compact precision components. Our volumetric Micro Screw Dispensing Valve (Micro Feeding Screw Valve) delivers a reliable, high-performance solution to resolve all such micro dispensing challenges.
Custom-engineered for continuous uniform deposition of pasty adhesives, sealants, thermal gap fillers and potting compounds, this auger metering dispensing head adopts a low-shear working principle. It enables ultra-gentle, low-pulsation material feeding ideal for shear-sensitive formulations and high-viscosity media without damaging adhesive properties or generating air voids.
Boasting remarkable process flexibility, the micro screw valve supports variable-volume micro dispensing and conformal coating across a wide range of miniature workpieces. Compatible with self-leveling adhesive supply systems, vacuum pressure plate pump feeding stations and bubble-free feeding systems, it seamlessly matches dynamic mixing heads, two-component AB epoxy dispensing units and compact in-line vacuum potting equipment.
Engineered for uninterrupted mass production, the valve minimizes equipment downtime and cuts routine maintenance expenses, effectively lowering total operational costs for manufacturers. It is extensively deployed for PCB encapsulation, tiny ECU & sensor potting, power semiconductor encapsulation, flat wire micro stator dripping coating, FIPG formed-in-place sealing and lithium battery miniature component sealing in new energy vehicle, consumer electronics and automotive electronics production lines, paired with compact multi-layer curing ovens for complete automated micro dispensing workflows.

Micro Doser series

D03 D15 D45 D60 D70
Measurements length 228 mm, Ø 33 mm length 228 mm, Ø 33 mm length 228 mm, Ø 33 mm length 274 mm, Ø 40 mm length 274 mm, Ø 40 mm
Weight 340 g 340 g 340 g 650 g 650 g
Operating pressure (5) 0 – 6 bar 0 – 6 bar 0 – 6 bar 0 – 6 bar 0 – 6 bar
Max. dispensing pressure (3) 20 bar 20 bar 20 bar 21 bar 10 bar
Viscosity watery to pasty watery to pasty watery to pasty watery to pasty watery to pasty
Dosing volume ca. 0,003 ml/rev ca. 0,01 ml/rev ca. 0,05 ml/rev ca. 0,14 ml/rev ca. 0,53 ml/rev
Volume flow 0,03 to 0,360 ml/min 0,1 to 1,2 ml/min 0.5 – 6.0 ml/min 1.4 – 16.0 ml/min 5.3 – 60.0 ml/min
0.5μL/s~6μL/s 1.6μL/s~20μL/s 8.3μL/s~100μL/s 23.3μL/s~266μL/s 88.3μL/s~1000μL/s
Min. dispensing quantity 0.00025 ml 0.0008 ml 0.004 ml 0.015 ml 0.060 ml
Dispensing accuracy (1) ± 1 % ± 1 % ± 1 % ± 1 % ± 1 %
Stator material hi-tec hi-tec hi-act hi-per hi-tec hi-act hi-per hi-tec hi-per
Material inlet G 1/8“ DIN/ISO 228 G 1/8“ DIN/ISO 228 G 1/8“ DIN/ISO 228 G 1/4“ DIN/ISO 228 G 1/4“ DIN/ISO 228
Material outlet Luer-Lock (patented) Luer-Lock (patented) Luer-Lock (patented) Luer-Lock (patented) Luer-Lock (patented)
Wetted parts AL / stainless steel / hi-tec/ UPE AL / stainless steel / hi-tec/ UPE AL / stainless steel / hi-per/ UPE (optional act/tec) AL / stainless steel / hi-per/ UPE (optional act/tec) AL/ stainless steel / hi-per / HD-PE
Operating conditions 10 – 40 °C 10 – 40 °C 10 – 40 °C 10 – 40 °C 10 – 40 °C
max.speed 125rpm* 125rpm* 125rpm* 125rpm* 125rpm*
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