Sinusoidal pumps


Material specification

Rotor 316 L Stainless Steel – also hardened Housing and Cover in 316 L
Scraper Various materials with FDA approval
Liners Various materials with FDA approval
Shaft Hardened Stainless Steel Scraper
Gate support SOMATECH-2080-PK
Powerframe Complete in Stainless Steel
Seal System Single mechanical seal with flushing or triple lip seal system

SOMA – Sinusoidal – Pumps - SCN product range

Flows to 91m3/hr
Heads to 153 m
Max Power 37 kw
Max Working Pressure 15kg/cm2
Temp Range -40-100°C
Standard Delivery 2 to 4 weeks / or after negotiation
Speed Range (rpm) 600 max
Materials of Construction 316 Stainless Steel, Polyamide
Max Viscosity 2,000,000 centipoise
Typical Applications Cheese, curd, deli sadals, soup, chicken breasts, ground beef, juice concentrates, chocolate, dough, lotions, shampoos, lipstick, polymers, paints Industries Dairy, Prepared Foods, Meat and Poultry, Beverage, Confection, Bakery, Seafood, Pharma-ceutical, Cosmetic, Industrial
Solids Range Up to 63mm diameter
Sizes Available 4
Seal Configurations Available Lip Seal, Single Mechanical
Available Flanges Tri-Clamp, Bevel Seat, DIN, SMS, ANSI 150# RF Suction and Discharge Size (in) 1x1, 2x2, 3x3, 4x4, 6x6
Displacement per Revolution 0.015 - 0.67 GAL / (0.06 - 2.50 Liters)

The SOMA SCN series

The SOMA SINUSOIDAL Positive Displacement Pump works according the Sinusoidal PUMP principle, which was developed by Manfred Sommer in 1982. The Sinusoidal curve shaped rotor is fitted on a pump shaft. Due to the design, four chambers are created in which the product will be transferred very gently - without any shear or damage to the product.

A scraper divides the suction and the pressure side. The rotor does not run against the housing or the cover. That means, that the housing and the cover will never wear out. SOMA offers an unlimited guarantee for the cover and the housing. Various seal system can be offered such as – triple lip seal system or mechanical seal systems are available.

Key figures:

  • Capacity: from 1000 l/h up to 100.000 l/h
  • Pressures: up to 15 Bar
  • Speed: up to 1000 rpm depending on the pump size
  • Particles: up 60 mm in size
  • Temperature: up to 95 C
  • Viscosities: up to 1.000.000 CPS
  • Suction: up to max. 0,9 Bar
  • Fixed or variable speed options
  • Stationary or mobile base plates

Features & benefits

  • Each pump will be individually sized and fitted with the most economical internal parts
  • Also a heating or cooling option is available
  • Gentle transfer especially when fragile parts are pumped
  • Very low pulsation
  • Very compact design
  • No foaming of the product when it is pumped
  • Suitable for low and high viscous products
  • Simple maintenance
  • All main wearing parts are ex stock
  • Unlimited guarantee for housing and cover
  • CIP and SIP possible


  • Food and beverage
  • Chemical
  • Cosmetics/Pharma