A high-viscosity manual drum pump is a heavy-duty, hand-operated pump designed for transferring thick, sticky, or semi-solid materials (like greases, adhesives, sealants, pastes, and food products) from drums, pails, or barrels. These pumps use mechanical advantage to move highly viscous fluids that electric or pneumatic pumps may struggle with.
✔ Handles extreme viscosities – Works with fluids up to 1,000,000 cP+ (e.g., grease, silicone, bitumen).
✔ No power needed – Ideal for remote or hazardous locations.
✔ Robust construction – Made of stainless steel, hardened steel, or PTFE-coated parts.
✔ Positive displacement – Ensures consistent flow without slipping.
✔ Adjustable suction tube – Fits different container depths.
Uses a rotating helical screw (worm) inside an elastomer stator.
Best for: Adhesives, sealants, grease (up to NLGI Grade 2+).
Example: Flux GORATOR® SD Manual.
Operates via a hand lever driving a piston.
Best for: Medium-high viscosity (e.g., paints, oils, syrups).
Uses interlocking gears to push fluid.
Best for: Oils, lubricants, and some pastes.
Industrial: Greases, heavy oils, mastics, asphalt.
Construction: Sealants, epoxy, mortar additives.
Food & Pharma: Peanut butter, dough, chocolate, creams.
Automotive: Gear oils, axle grease.
Viscosity range – Worm drive for the thickest pastes.
Material compatibility – Stainless steel for chemicals, food-grade options for edible products.
Container size – Ensure the dip tube reaches the bottom.
Portability – Lightweight models for frequent moves.
Clean after each use (prevent clogging).
Inspect seals & O-rings (replace if cracked).
Lubricate moving parts (if applicable).
Need a recommendation? Tell me your fluid type and container size!