Rickmeier Gear Pump RZ3-3408-454607
Rickmeier is a German manufacturer specializing in hydraulic and lubrication systems (established in 1958). Its gear pumps are renowned for their high reliability, modular design, and long service life, widely applied in heavy machinery, marine power systems, and industrial lubrication setups.
Core Design Features
Structural Optimization
Double-Arc Sinusoidal Tooth Profile: The gears adopt a double-arc sinusoidal curve tooth profile, eliminating relative sliding at the meshing surface, reducing wear, and operating at noise levels ≤59 dB(A) (reference value for the R25 series), with a lifespan increased by over 30%.
Composite Material Bearings: P10/DU-coated sliding bearings support dry running, withstand high-load impacts, and are compatible with media viscosities ranging from 5–20,000 mm²/s.
Sealing System: Standard radial shaft seals made of NBR/FKM materials are available, with options for mechanical seals or magnetic couplings (zero leakage), supporting operating conditions from -25°C to 150°C (for FKM-sealed versions).
Functional Innovations
Bidirectional Flow Stability (UNI Series Feature): Automatically maintains the original flow direction when reversing rotation, eliminating the need for switching valves, suitable for applications requiring forward and reverse rotation, such as marine gearboxes and wind turbine pitch systems.
Integrated Safety Valve: The differential pressure safety valve supports pressure regulation from 1–25 bar, automatically returning flow during overpressure to protect the pump body from overload (not a substitute for a pressure relief valve for long-term use).
Typical Application Scenarios
Industrial Lubrication Systems
Forced oil supply for large gearboxes (e.g., paper machines, wind turbine gearboxes), with flow stability errors <1%.
Power Equipment
Fuel delivery for marine propulsion systems and circulating lubrication for diesel engines, resistant to corrosion in seawater environments (optional C4 coating available).
Hydraulic Power Sources
Open hydraulic systems for construction machinery (injection molding machines, concrete pump trucks), supporting dual-pump parallel operation for stepless flow adjustment.