Hopper Pump In Hygienic Design
The design of the WF food and hygienic pump from ROTOMAC is built for very highly viscous & minimally flowable products — with & without solids. It is characterised by a rectangular hopper with a compression zone and feed screw conveyor. In the hygienic design, the pump is fitted with open joints; closed pin joints are optionally available.
InletRectangular Hopper & Feed Screw
JointsOpen Pin / Encapsulated Cardan
HygieneCIP / SIP Ready
MediaHighly Viscous & Solids
Feed Screw For Non-Flowable Media
ROTOMAC™ WF Hopper Pump
Part of the ROTOMAC food & hygienic range, the WF hopper pump is engineered for products that will not feed themselves into a conventional pump inlet. A wide rectangular hopper accepts pasty, doughy and chunky media, while an auger-type feed screw carries it forward into a conically closing compression zone before it reaches the rotor and stator.
In the hygienic design, the pump is fitted with open joints. Robust encapsulated cardan joints — known for their versatility and long service life — are optionally available for heavier duty.
Why a hopper design? Optimal filling of the conveying chambers through the feed screw and conically closing compression zone means no air is carried into the pumping element. The result is steady, almost pulsation-free flow with low shear — so sensitive products, even whole pieces, reach the discharge port intact.
Details & Configuration
Everything you need to know about the WF Hopper Pump — from core benefits to full technical configuration options.
Economical
Food grade pump with careful considerations for Food & Hygienic Applications — delivering hygienic performance without the premium price tag of specialist sanitary equipment.
Low Pulsing Conveying
Low shear and almost pulsation-free pumping allow gentle transfer of sensitive products, even whole pieces — without damage to product structure or texture.
Wear Resistant
Hermetically sealed elastomer sleeves are particularly suited for abrasive pumping media, extending service life in demanding duty.
Robust Construction
Offers robust encapsulated cardan joints known for their versatility and long service life, as well as open pin joints for hygienic-design applications.
Residue Free Cleaning
Carefully designed for excellent cleaning results in cleaning processes such as Clean in Place (CIP) & Sterilization in Place (SIP) — reducing downtime between production runs.
Optimal Conveyance
Optimal filling of conveying chambers through feed screw and conically closing compression zone — ensuring consistent, reliable throughput even with non-flowable media.
- Discharge Port
- Made of stainless steel, polished inside, glass bead blown outside. Connection as standard to SMS, DIN, Tri Clamp.
- Rotor
- Wear resistant and corrosion-resistant materials. Optionally with hard surface treatment.
- Stator
- In food-grade materials to suit applications as reqd.
- Augar Type Connecting Rod
- Connecting rod with Feeding Screw, it is also available with customized feature for special applications.
- Open Hopper
- Rectangular feed hopper with conveying screw for pumping highly viscous products.
- Shaft Sealing
- Available in Gland Packing, Single Mechanical seal as well as Double Mechanical seals.
- Drives & Drive Arrangements
- Available in both Bareshaft Drive Configuration as well as Close Coupled Drive Configuration.
- FACB SeriesBareshaft drive configuration — pair the pump with your own drive train and mounting arrangement for maximum flexibility.
- FDCB SeriesClose coupled drive configuration — a compact, factory-aligned unit with fewer components to align on site.
- Geared motors, variable speed drives or frequency controlled motors are offered. Also offered are drive shrouds made of stainless steel.
- Dry Run Protection
- Dry run protection monitors the temperature of the stator and shuts the pump down when the limit value is reached, to protect the pump from dry running.
- Overpressure Protection
- The pressure gauge switches off the pump as soon as a pre-set pressure is exceeded or not reached, and protects the pump from increased wear and tear or piping damage.
Technical Specifications
Typical Applications
Wherever product is too thick to feed itself, too delicate to shear, or too regulated to leave residue behind.
Dairy & Cheese
Curd, quark, processed cheese and cultured products.
Bakery & Confectionery
Dough, fillings, fondant, caramel and fruit preparations.
Meat & Ready Meals
Minced product, marinades, pastes and batch transfer.
Fruit & Vegetable
Purees, pulps and preparations containing whole pieces.
Pharmaceutical
Sterile and semi-solid formulations requiring SIP validation.
Cosmetics
Creams, gels and emulsions where texture must be preserved.
Pet Food
High-viscosity mixes with bone, fibre and particulate content.
Beverage & Brewing
Yeast, sediment, spent grain and concentrate handling.
Need a WF Hopper Pump?
Share your product viscosity, particle size, flow rate and discharge pressure — our engineers will confirm the right hopper size, stator material, seal arrangement and drive configuration.
Email Us
contact@rotomac.orgCall Us
+91 7522 002204 (Sales)Head Office
D-4a, Panki Industrial Area, Site-1, Kanpur – 208022, India