Turolla Hydraulic Gear Pumps and Motors

Technical selection of Turolla Group 1, Group 2, and Group 3 external gear pumps, Danfoss GearMe hydraulic motors, and heavy-duty Rugid units for mobile machinery and industrial hydraulic power units.

Turolla Group 1 Hydraulic Gear Pumps

Turolla Group 1 aluminum external gear pumps feature fixed displacements from 2.6 to 12 cc/rev. Engineered for mobile machinery, turf care equipment, and industrial hydraulic power packs operating up to 250 bar. The balanced floating bushing design ensures high volumetric efficiency.

Fixed displacement from 2.6 to 12 cc/rev providing precise hydraulic fluid flow control
Continuous working pressure rating reaching up to 250 bar under steady operating duty
Extruded aluminum housing with standardized European and SAE mounting flange geometry
Tapered, splined, and parallel drive shaft options matching various mechanical interfaces

Turolla Group 2 Hydraulic Gear Pumps

Versatile Turolla Group 2 external gear pumps encompass SNP2NN and SKP2NN series with displacements from 3.9 to 25.2 cc/rev. Available with integrated relief valves in SNP2EN and SNP2IN models. The modular architecture enables multi-stage pump combinations driven by a common shaft.

Displacement range from 3.9 to 25.2 cc/rev tailored for versatile industrial mobile units
Continuous system pressure ratings reaching up to 250 bar across common operating ranges
Integrated pressure relief valve configurations available in SNP2EN and SNP2IN models
Modular multi-pump assembly sharing a single high-strength shaft for split flow demands

Turolla Group 3 Hydraulic Gear Pumps

Heavy-duty Turolla Group 3 aluminum gear pumps include SNP3NN and SEP3NN series delivering displacements from 22 to 90 cc/rev for off-highway utility vehicles. They feature high flow rates, robust aluminum bodies, and a broad range of SAE-B and European standard mounting flanges.

High displacement range from 22 to 90 cc/rev engineered for heavy mobile utility machinery
Continuous hydraulic fluid pressure ratings reaching up to 250 bar under duty cycles
Multi-stage combination capability allowing direct coupling with Group 1 and Group 2 units
Heavy-duty journal bearings designed to absorb elevated radial drive loads reliably

Turolla and Danfoss GearMe Hydraulic Motors

Danfoss GearMe and Turolla hydraulic gear motors across SNM1, SNM2, and SNM3 series deliver displacements from 2.6 to 90 cc/rev. Built in unidirectional and bidirectional configurations, they feature high starting torque, low backpressure tolerance, and proven durability in fan drive mechanisms.

Displacement range from 2.6 to 90 cc/rev across three standardized motor frame groups
Unidirectional and bidirectional motor options engineered with internal drain passages
Elevated starting torque delivering smooth rotational acceleration for vehicle coolers
Direct component interchangeability with proven Turolla SNP gear pump design lines

Turolla D Series and Rugid Iron Hydraulic Pumps

Heavy-duty D Series and Rugid Group 2.5 gear pumps feature high-strength iron housings built for construction and paving machinery. Combining SAE-A and SAE-B envelope dimensions, they withstand cyclic load peaks up to 275 bar and elevated hydraulic fluid temperatures under continuous duty.

Heavy-duty ductile iron housing engineered for severe construction site conditions
Continuous working pressure ratings up to 275 bar under severe cyclic dynamic peaks
Unified envelope blending standard SAE-A and SAE-B flange mounting dimensions cleanly
Pressure-balanced thrust plates providing maximum hydraulic resistance against wear

Danfoss Lumi Pumps and Turolla Fan Drive Systems

Danfoss Lumi Group 2 floating bushing aluminum gear pumps and Turolla proportional fan drive systems provide smart cooling for off-highway equipment. By adjusting fan rotation speed to engine heat demands, they optimize fuel consumption, minimize operational noise, and prolong hydraulic fluid life.

Proportional fan speed control tailored directly to engine operating thermal demand
Floating bushing architecture with automatic clearance compensation under duty load
Acoustic noise reduction across variable diesel engine RPM ranges during heavy work
Integrated electro-hydraulic proportional valves for linear fluid volume regulation

Turolla Brand Heritage and Integration with Danfoss Power Solutions

Established in Bologna in 1948 by Marco Turolla, the enterprise evolved into a premier European manufacturer of precision external gear hydraulic machinery.

Over decades of engineering innovation, the firm became Turolla OpenCircuitGear within Sauer-Danfoss, focusing on high-efficiency open circuit gear components.

Today, this technology foundation is fully integrated within Danfoss Power Solutions, continuing production across GearMe, Lumi, and Rugid product platforms with identical mounting geometry and interchangeability.

Engineering Design Principles of Aluminum Gear Pumps

The engineering foundation of Turolla Group 1, Group 2, and Group 3 gear pumps combines high-strength extruded aluminum alloy housings with floating bushing journal bearings.

Hydrostatic pressure balancing automatically offsets thermal expansion and eliminates internal oil slippage under continuous operating pressures reaching up to 250 bar.

Optimized gear tooth profiles suppress hydraulic pulsation, reduce noise emissions, and protect mobile machinery from mechanical vibration.

Modular Multi-Stage Assemblies and Integrated Control Valves

Turolla Group 2 hydraulic units support versatile multi-section combinations through standardized intermediate flanges and heavy-duty spline couplings.

System designers can combine Group 1, Group 2, and Group 3 pump stages on a common drive shaft to power steering, boom lift, and auxiliary work circuits simultaneously. Models with built-in relief valves simplify plumbing by eliminating external hydraulic manifolds and saving compartment space.

Danfoss GearMe Hydraulic Motors for Vehicle Cooling Systems

Turolla and Danfoss GearMe gear motors across SNM1, SNM2, and SNM3 series utilize the robust architecture of SNP pumps, supplemented by specialized shaft seals and internal drain passages. Bi-directional versions incorporate dedicated drain ports to withstand elevated backpressures in return lines.

Superior starting torque enables prompt fan rotation startup in sub-zero weather, preventing overheating in mobile earthmoving machinery.

Rugid and D Series Ductile Iron Pumps for Cyclic High Pressure

Developed for road paving, trenching, and mining vehicles, Turolla D Series and Danfoss Rugid Group 2.5 gear pumps withstand continuous cyclic pressure spikes up to 275 bar. Heavy ductile iron housings eliminate bearing bore deflection under severe dynamic shock loads.

Blending SAE-A and SAE-B dimensions, these units provide reliable hydraulic power even when operating with contaminated fluids in dusty environments.

Technical Model Code Identification and Replacement Selection

Selecting an exact replacement Turolla gear pump or motor requires reading the alphanumeric model code stamped on the aluminum body or mounting flange.

Engineers examine frame group, shaft rotation direction, gear displacement code, drive shaft profile, and hydraulic port threads (European four-bolt or BSP/UNF). When legacy units retire, direct functional interchanges from current Danfoss GearMe series maintain full dimensional compatibility.

Turolla and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Turolla and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.