Shinjo produce screw pumps materials in cast iron, cast steel or stainless steel, sizes 1"-10" (DN25-DN250 mm), flow 0.53-150 m³/h, head up to 120 m, motor power 0.22-90 kw. Browse our single-screw models below or request a quote.
| Material | Cast Iron, Cast Steel or Stainless Steel |
|---|---|
| Size | 1"-10", DN25-DN250 mm |
| Flow Rate (Q) | 0.53 - 150 m³/h |
| Lift Head (H) | Up to 120 m |
| Motor Power | 0.22 - 90 kw |
| Operating Temperature | Up to 120°C |
| Viscosity Range | 1 - 1,000,000 cp |
| Model | Material & Working Parts | Best For |
|---|---|---|
| I-1B | Eccentric screw (rotor) + double helix screw bushing (stator) | Food, metallurgy, construction, pharmaceutical, chemical — viscous media and corrosive media |
| GNF | High-quality stainless & acid-proof steel wetted parts; non-toxic rubber bushing | Chemical, petroleum, sewage — viscosity 1-1,000,000 cp; working temp up to 120°C |
| G Type | Eccentric screw (rotor) + fixed bush (stator) — universal pump | 11 industries — environmental, shipbuilding, petroleum, pharma, food, brewing, construction, mining, chemical, printing, boilers |
| Model | Capacity | Head | Size | Motor Power | Speed |
|---|---|---|---|---|---|
| I-1B | 1.5 - 35 m³/h | 50 - 120 m | DN25 - 150 mm | 1.5 - 15 kw | 960 rpm |
| GNF | 1.5 - 20 m³/h | — | DN32, DN50, DN100 | 1.5 - 11 kw | 960 rpm |
| G Type | 0.8 - 150 m³/h | Pressure up to 1.2 MPa (dual-stage) | DN25-DN250 mm (1"-10") | 0.75 - 90 kw | Adjustable |
Single screw pumps are widely used across the following ranges and industries:
Viscous & shear-sensitive media
Food processing (honey, syrup, cream, fruit pulp), pharmaceutical (ointments, emulsions), and chemical (adhesives, grease, colloid slurry) — where gentle, low-shear transfer preserves product integrity.
Slurry & solids-laden fluids
Mining (underground sewage with particles), environmental (sludge, short-fiber wastewater, filter-press feed), construction (cement mortar, lime slurry) — where abrasive content would damage centrifugal impellers.
Industrial & process fluids
Petroleum (crude oil, polymer injection), brewing (fermented lees, pulps), printing & paper (high-viscosity ink, short-fiber pulp), industrial boilers (coal-water slurry).
From 1 cp up to 1,000,000 cp. The GNF model handles viscosity 1-1,000,000 cp media without solid particles, slurry, suspension or gel. The I-1B handles media with viscosity up to 10,000 poise seconds containing solid particles or colloidal solutions.
Up to 120°C for GNF and Stainless Steel Screw Pump models (rubber bushing design).
Yes. The G Type can transport solid particles and fibers — up to 20 mm solids and 150 mm fibers on the largest single-stage model (G135-1). The I-1B is also suitable for media containing solid particles or colloidal slurry solutions.
On the G Type series, the export pressure can be increased by adding stages — each additional stage increases pressure by 0.6 MPa. Single-stage models are rated at 0.6 MPa; dual-stage models are rated at 1.2 MPa.
GNF models use high-quality stainless steel and acid-proof steel wetted parts with non-toxic rubber bushing. Cast Iron models suit abrasive solids and viscous liquids. Stainless Steel models offer rust, acid and oil resistance. The I-1B and G Type use eccentric screw (rotor) with bushing/stator construction.
