Products

Rated working pressure

Maximum pressure capability

Pressure compensation function

Load sensing pressure control

Pressure cut-off adjustment

Pressure relief valve setting

System pressure regulation

Differential pressure control

Pressure holding capability

Pressure spike protection

Pressure override function

Pilot pressure supply

Case pressure limitation

Suction pressure requirement

Return line back pressure

Pressure transducer feedback

Pressure gradient control

Hydraulic lock pressure

Pressure sequencing function

Pressure balancing mechanism

Pressure decay rate

Pressure ripple limitation

Pressure transient response

Pressure-dependent displacement

Pressure hysteresis control

Pressure equalization feature

Pressure margin maintenance

Pressure-dependent flow

Pressure overload protection

Pressure stability performance

Fixed displacement axial piston design

Dual hydraulic pump configuration

Heavy-duty industrial construction

Precision ground cam surface

Hardened alloy steel cylinders

Chromium-plated piston surfaces

Pressure-balanced valve plate

Tapered roller bearing support

High-pressure operation capability

Constant flow output characteristic

Robust cast iron housing

Sintered bronze bushing design

Mechanical drive shaft connection

Port and flange mounting options

ISO standard mounting dimensions

Pressure-balanced piston design

Low noise operation characteristic

Efficient volumetric performance

Reliable sealing system

Minimal internal leakage design

Wide viscosity range compatibility

Corrosion-resistant surface treatment

Precision machined components

Balanced rotating group assembly

Shock load resistant construction

Temperature-stable performance

Easy maintenance accessibility

Interchangeable cartridge design

Factory pre-tested and calibrated

Proven reliability in mobile equipment

Fixed displacement axial piston design

Dual hydraulic pump configuration

Heavy-duty industrial construction

Precision ground cam surface

Hardened alloy steel cylinders

Chromium-plated piston surfaces

Pressure-balanced valve plate

Tapered roller bearing support

High-pressure operation capability

Constant flow output characteristic

Robust cast iron housing

Sintered bronze bushing design

Mechanical drive shaft connection

Port and flange mounting options

ISO standard mounting dimensions

Pressure-balanced piston design

Low noise operation characteristic

Efficient volumetric performance

Reliable sealing system

Minimal internal leakage design

Wide viscosity range compatibility

Corrosion-resistant surface treatment

Precision machined components

Balanced rotating group assembly

Shock load resistant construction

Temperature-stable performance

Easy maintenance accessibility

Interchangeable cartridge design

Factory pre-tested and calibrated

Proven reliability in mobile equipment

Rated working pressure

Maximum pressure capability

Pressure compensation function

Load sensing pressure control

Pressure cut-off adjustment

Pressure relief valve setting

System pressure regulation

Differential pressure control

Pressure holding capability

Pressure spike protection

Pressure override function

Pilot pressure supply

Case pressure limitation

Suction pressure requirement

Return line back pressure

Pressure transducer feedback

Pressure gradient control

Hydraulic lock pressure

Pressure sequencing function

Pressure balancing mechanism

Pressure decay rate

Pressure ripple limitation

Pressure transient response

Pressure-dependent displacement

Pressure hysteresis control

Pressure equalization feature

Pressure margin maintenance

Pressure-dependent flow

Pressure overload protection

Pressure stability performance

Hydraulic fan drive power source – Provides hydraulic power specifically for cooling fan operation.

Cooling system pressure generation – Creates the necessary hydraulic pressure to drive the fan motor.

Variable fan speed control – Allows for infinitely variable fan speed based on cooling demand.

Independent cooling circuit operation – Operates separately from the main implement hydraulic circuits.

Temperature-responsive cooling – Adjusts fan speed according to coolant/hydraulic oil temperature.

Engine load reduction – Offloads fan drive duty from the mechanical engine fan, reducing parasitic power loss.

Fuel efficiency improvement – Consumes power only when cooling is needed, saving fuel.

Noise reduction – Allows for slower, quieter fan operation when full cooling is not required.

Radiator airflow management – Controls airflow through the radiator and charge air cooler.

Cab ventilation support – May also assist in providing airflow for cab air conditioning condenser.

Hydraulic oil cooling enhancement – Manages airflow over the hydraulic oil cooler.

Charge air cooling regulation – Controls cooling of turbocharged intake air via the charge air cooler.

Engine overheating prevention – Increases fan speed to maximum when coolant temperature is critically high.

Reverse fan function (if equipped) – Can reverse airflow to clear debris from coolers.

Pilot pressure supply – May provide pilot pressure for fan control valves.

On-demand cooling activation – Engages only when temperature thresholds are reached, unlike a constantly engaged mechanical fan.

Energy-efficient operation – Reduces overall system energy consumption compared to fixed-speed fans.

Multiple cooler airflow coordination – Simultaneously manages airflow for radiator, hydraulic oil cooler, and charge air cooler.

Electronic control interface – Typically controlled by the machine's ECU based on sensor inputs.

Proportional solenoid control – Uses a proportional solenoid to vary pump displacement and thus fan speed.

System pressure maintenance – Maintains a dedicated pressure supply for the fan circuit.

Fast response to temperature changes – Reacts quickly to sudden increases in engine or hydraulic load.

Fan speed soft start/stop – Gradually increases/decreases speed to reduce shock on the system.

Fail-safe cooling mode – Defaults to maximum cooling speed if a control system fault is detected.

Ambient temperature compensation – Adjusts operation based on outside air temperature.

Engine protection feature – A critical component in preventing engine and hydraulic system thermal damage.

Hydraulic circuit isolation – Prevents fan operation from interfering with implement hydraulic functions.

Reduced mechanical complexity – Eliminates belts, tensioners, and viscous clutches associated with mechanical fans.

Extended component life – By preventing overheating of the engine, transmission, and hydraulic components.

Overall machine performance optimization – Maintains optimal operating temperatures for maximum efficiency, power, and longevity of all major systems.

Main hydraulic control valve​ – Directs system flow to all functions.

Parallel hydraulic circuit design​ – Allows simultaneous operation of multiple functions.

Load-sensing system integration​ – Works with pumps to deliver on-demand flow.

Pressure compensator spools​ – Maintains consistent speed under varying loads.

Pilot-operated control​ – Uses low-pressure signals for precise valve actuation.

Independent metering control​ – Manages oil flow to both sides of cylinders.

Boom regeneration circuit​ – Improves lowering speed and efficiency.

Arm regeneration circuit​ – Enhances arm retraction speed and energy savings.

Swing priority function​ – Diverts flow to swing during combined operations.

Anti-cavitation valves​ – Prevents vacuum formation in cylinders.

Cross-line relief valves​ – Protects circuits from shock loads during abrupt stops.

Make-up valve function​ – Supplies oil to prevent vacuum during fast cylinder movement.

Attachment flow control (if equipped)​ – Regulates oil to auxiliary hydraulic lines.

Pressure cut-off adjustment​ – Controls maximum system pressure.

Joystick signal interface​ – Connects operator controls to hydraulic spools.

Fine control characteristics​ – Allows precise movements for grading and finishing.

Detent mechanism (for certain functions)​ – Locks valves for continuous operation.

Neutral bypass passage​ – Directs unused pump flow back to tank with minimal pressure.

Port relief valves​ – Protect individual cylinders from overpressure.

Load check valves​ – Hold cylinder positions when levers are in neutral.

Stackable modular design​ – Simplifies maintenance and function expansion.

Cast iron or ductile iron body​ – Provides durability and pressure resistance.

Hardened steel spools and sleeves​ – Ensures long service life with minimal leakage.

Integrated test ports​ – For system diagnostics and pressure measurement.

Float function capability​ – Allows attachment to follow ground contours.

Return line to hydraulic tank​ – Channels spent oil back for cooling and filtration.

Compatibility with load-sensing pumps​ – Forms efficient closed-center system.

Shock absorption design​ – Reduces hydraulic hammer during valve shifting.

Multi-function parallel operation​ – Enables smooth combined movements.

Core hydraulic management component​ – Essential for all excavator digging, lifting, and swing operations.

Intelligent Total Control System (ITCS)

Load-sensing proportional control

Dual variable displacement piston pumps

Electronic pump displacement control

Closed-center hydraulic circuit

Pressure-flow compensation technology

Hydraulic horsepower optimization

Energy-saving main control valve

Advanced regeneration circuits

Smart power mode selection

Independent travel motor circuits

Swing priority function

Attachment flow control system

Electronic throttle control integration

Hydraulic oil cooling optimization

Automatic idle reduction system

Precise joystick control response

Low-noise hydraulic component design

Enhanced fuel efficiency

Reduced hydraulic heat generation

Intelligent work mode selection

Hydraulic system self-diagnosis

Pump torque limiter protection

Smooth combined operation capability

Attachment flow sharing control

Electronic pressure regulation

Forged alloy steel construction

SAE 4140/4340 chromium-molybdenum steel

Vacuum-degassed steel refining

High carbon content for strength

Nickel-chromium-molybdenum alloying

Ultrasonic testing for internal defects

Induction-hardened journal surfaces

Precision grinding to micron tolerances

Nitrided bearing surfaces

Shot-peened fillet radii

Dynamic balancing to ISO standards

Micro-alloyed steel composition

Fine-grained martensitic structure

Tempered core toughness

High fatigue strength design

Surface hardness 55-62 HRC

Core hardness 28-35 HRC

Magnetic particle inspected

Phosphate coating for run-in

Counterweight integrally forged

Oil passage drillings with chamfered edges

Stress-relieved heat treatment

Crankshaft journal taper and ovality control

Journal surface finish Ra 0.2-0.4μm

Flame-hardened option for specific applications

Residual stress optimization

Fatigue-resistant metallurgical design

Corrosion-resistant phosphate layer

Dimensional stability through processing

Cummins ES-series material specification compliance

• Heavy-duty reinforced construction​ 

• Ultra-high-strength steel plates​ 

• Fully-welded box-section design​ 

• Impact-resistant wear edges​ 

• Articulated wear-protection side cutters​ 

• Forged alloy steel hinge bushings​ 

• Robotically welded stress zones​ 

• Certified premium-grade abrasion steel​ 

• Precision-ground bucket teeth adapters​ 

• Multi-layer impact pad reinforcement​ 

• Factory-calibrated digging angle geometry​ 

• Military-grade steel alloy composition​ 

• Non-deforming stressed arc welds​ 

• Field-tested rock penetration capability​ 

• Extended service life guarantee​ 

• High-density wear-resistant hard-facing​ 

• Optimal weight-to-strength ratio​ 

• Triple-reinforced main weld seams​ 

• Thermal stress-relieved frame components​ 

• Proprietary steel hardening process​ 

• Computer-optimized load distribution​ 

• Indestructible forged steel hinge pins​ 

• Industry-leading breakout force rating​ 

• Zero-tolerance manufacturing precision​ 

• Shock-absorbing reinforced back plate​ 

• High-yield tensile steel construction​ 

• Radiographic weld integrity testing​ 

• Patented wear component technology​ 

High-strength bronze alloy composition

Continuous-cast metallurgical structure

Precision-honed internal diameter

Uniform wall thickness tolerance

Oil-impregnated self-lubricating design

High-load bearing capacity

Exceptional impact resistance

Engineered thermal expansion coefficient

Minimal clearance fit precision

Double-lip grease retention grooves

Hardened steel backing reinforcement

Corrosion-resistant surface treatment

ISO-certified dimensional accuracy

High-temperature performance stability

Shock-absorbing micro-cellular structure

Uniform graphite distribution

Anti-galling protective coating

Low-friction polymer composite

Crush-resistant alloy formulation

Radial load optimization design

Vibration-dampening internal structure

Factory-preloaded clearance setting

Multi-axis machining precision

Thermal conductivity enhancement

Electroplated nickel barrier layer

Hydrodynamic lubrication channels

Stress-relieved heat treatment

Ultrasonic cleaning prior to assembly

Batch-tested hardness consistency

Documented metallurgical certification

Aluminum alloy core – Primary heat transfer material (typically 3003/5052 alloy).

Brazed aluminum fins – High-surface-area fins for efficient heat dissipation.

Aluminum header tanks/end caps – For oil inlet/outlet distribution.

Stainless steel tube inserts – At critical connection points for wear resistance.

Brass or copper-nickel alloy tubes – In some heavy-duty variants for corrosion resistance.

High-frequency welded fins – Bonded to tubes for optimal thermal conductivity.

Epoxy-coated aluminum – Optional corrosion protection on external surfaces.

Zinc-chromate primer – Anti-corrosion coating on bare aluminum.

Silicon gasket material – For sealing between core and tanks.

Nitrile rubber seals – For port connections and mounting brackets.

Steel mounting brackets – For secure engine block attachment.

Anodized aluminum surface – Enhanced corrosion and wear resistance.

Polyamide plastic side plates – In some designs for structural support.

Brass drain plug – For oil drainage during service.

Copper-based brazing alloy – Joins fins, tubes, and headers (e.g., CuP-6).

Phosphated steel fasteners – For corrosion-resistant assembly.

Glass-reinforced plastic end tanks – In lighter-weight composite designs.

Nickel-plated steel fittings – For enhanced corrosion protection at ports.

Extruded aluminum tubes – Seamless construction for pressure integrity.

Corrugated aluminum fin design – Turbulence-enhancing geometry for better cooling.

Pressure-resistant alloy core – Rated for engine oil system pressure (typically 4-8 bar).

Lead-free solder materials – For environmental compliance in brazing.

Powder-coated steel brackets – Durable finish on mounting components.

High-purity aluminum – Minimizes impurities for optimal heat transfer.

Silicon-bronze alloy brazing filler – Used in high-strength joints.

Stainless steel reinforcement bands – On large-core radiators for vibration resistance.

Aluminum-silicon alloy fins – Improved strength at elevated temperatures.

Electro-galvanized steel parts – For brackets and protective covers.

Fluorocarbon coating – Optional hydrophobic coating for debris shedding.

Machine mobility – Enables forward, reverse, and turning movement of the excavator.

Undercarriage core component – Forms the base structure that supports the entire upper machine.

Track system support – Provides the framework for mounting track chains, rollers, and idlers.

Ground pressure distribution – Spreads the machine's weight over a large area via the track shoes.

Final drive mounting platform – Houses and supports the travel reduction gearboxes (final drives).

Travel motor attachment point – Connects the hydraulic travel motors to the drive sprockets.

Track tensioning system foundation – Incorporates the idler and tensioning mechanism for proper track adjustment.

Carrier roller and track roller support – Includes brackets and axles for the rollers that guide and support the track chain.

Shock absorption – The structure and suspension help absorb impacts from uneven terrain.

Load transfer – Transmits working forces from the upper structure to the ground through the tracks.

Stability provision – A wide, robust undercarriage provides a stable platform for digging and lifting.

Swing bearing support – The center frame (part of the assembly) supports the upper structure swing bearing.

Gradability enablement – Allows the machine to climb and descend slopes.

Turning capability – Differential track speed control (via independent motors) facilitates pivot and gradual turns.

Floatation on soft ground – Wide tracks reduce ground pressure, preventing sinking in mud or sand.

Durability for rough terrain – Built to withstand rocks, debris, and harsh job site conditions.

Alignment maintenance – Keeps track chains aligned to prevent derailment and excessive wear.

Vibration damping – Reduces vibration transmission from the ground to the operator's cab.

Counterweight support base – The strong frame bears the weight and leverage of the rear counterweight.

Service access platform – Allows mechanics access to components for maintenance and repair.

Component protection – Encloses and protects drive motors, brakes, and hydraulic lines within the track frame.

Integration point for track guides – Mounts the guides that keep the track chain on the rollers and sprockets.

Hydraulic line routing structure – Provides protected channels for travel circuit hydraulic hoses.

Brake system integration – Incorporates travel parking and service brake mechanisms.

Equalizer bar pivot point (if equipped) – Allows one track to articulate for better ground contact.

Heat dissipation – Metal mass helps dissipate heat from the final drives and motors.

Sound dampening – Helps contain and reduce operational noise.

Sprocket protection – The frame partially shields the drive sprocket from direct impacts.

Containment for lubrication – Sealed compartments retain grease and oil in rollers and idlers.

Overall structural integrity – Essential for connecting all lower components into a cohesive, functional unit that defines the machine's ground engagement capability.