CAT CAT®844K Wheel dozer

● Long-term value and durability

Solid construction

Very durable construction allows for multiple life cycles，And can handle the most demanding loading conditions.，Thereby improving your profitability。

The full box section rear frame can withstand strong torsional impact force and twisting force.。

Castings on the engine end frame are used for highly stressed areas.，Helps distribute high loads。

Cast pivot mounting area for better stress load distribution，Enhanced structural integrity。

90% The structural parts of the machine are automatically welded.，The welds are extremely uniform，The strength is improved。

Rack

When we produce front and rear racks,，The primary concern is to maximize uptime and productivity for you。

The frame with full box section design can absorb the torsional force generated during bulldozing.，Align the coupling pin with the driveline。

Spread out hitch design with double tapered roller bearings and hardened pin，Capable of withstanding horizontal and vertical loads。

One-piece casting for key pin joint，The structural strength is enhanced.。

Dozer gp-push beam and push arm

To ensure longer service life and excellent reliability，Full-width solid integrated push beam，Not just attached to the side of the rack。When dozing at a corner，The stress is transferred and absorbed by the larger portion of the frame。

● Excellent performance

Steering and Transmission Integrated Control System（STIC™）

Steering and Transmission Integrated Control System（STIC，Steering and Transmission Integrated Control）The system selects the direction、Gear selection and steering operation integrated into a single lever，For optimum response and handling。

A simple sideshift action turns the machine to the right or left.，Thus minimizing operator movement。

Gear selection can be controlled by finger，The operation is very simple。

By using a labour-saving integrated control device，Operation cycle is more stable、Fast，It also reduces operator fatigue.。

CAT Planetary Power Shift Transmission

Best-in-class gearboxes designed for mining operations are your first step to success。

Integrated electronic control for uniformity、Smooth shifting and greater efficiency。

Heat-treated gears and metallurgical techniques can extend service life and improve reliability。

Three forward speeds and three reverse speeds，Effectively meet operational needs。

CAT C27 Engine

844K The durability and efficiency of the machine comes from Cat C27 Engine。The engine is a 12-cylinder direct injection design.，Achieve optimal performance。

Use the electronic control module to optimize performance，Achieve rapid response of engine。

Using mechanically actuated electronic unit injection（MEUI™）System injection timing、Full control of injection duration and pressure，Reliable and efficient。

By reducing the rated speed，The service life of the engine is prolonged.，Improved fuel efficiency。

The design conforms to the United States EPA Tier 4 Final Or Tier 2 Equivalent Emission Standard。

Pump wheel clutch torque converter（ICTC）And rimpull control system（RCS）

Adopt advanced ICTC And RCS Obtain modulated rimpull，This reduces your cost per ton of work。

When the left pedal is depressed，The rimpull can be increased from 100% Adjust to 25%，Thus reducing tire slip and wear。At 25% After rimpull，The left pedal applies the brake。

RCS The possibility of wheel slip is reduced without reducing the efficiency of the hydraulic system。

Provides direct drive with our lock-up clutch torque converter，Can improve fuel efficiency in some application。

● Performance and productivity

Electro-hydraulic control

Operators can take advantage of our responsive tooling capabilities to increase productivity。

Electronically controlled hydraulic cylinder stops for comfortable operation。

Easy to use soft detent control，The operation is more convenient。

The blade responds

Speed of blade movement to meet your application requirement，Thereby increasing operator efficiency.。

Three different speeds：Standard、Fine and fast。

Passable Advisor The display is easy to configure。

Only the blade raise and lower functions will be affected。

Steering system

844K The load-sensing hydraulic steering system of the enables precise machine control，Allows the operator to operate the loader with confidence。

Improved efficiency with variable displacement piston pump。

35 degree steering articulation allows precise positioning in tight areas，Easy to load。

Integrated steering and transmission control for enhanced operator comfort。

Filtration system

Our advanced filtration system enhances the performance and reliability of your hydraulic system。

Promote/Tilt Case Drain Filter。

Promote/Tilt the high pressure screen。

Steering Case Drain Filter。

High pressure strainer for steering。

Hydraulic Case Drain Filter。

Front Pump Drive Lube Oil Filter。

Front and rear brake oil screens。

● Comfortable working

Our thoughtful cab features provide operator comfort，Work efficiently。

Cab access

Take advantage of these newly designed ergonomic features，It can be easy、Safe access to the cab。

Boarding points on both sides。

Folding type STIC Steering device/Armrest。

Reduced boarding ladder angle。

CAT Comfort series III Chair

Cat Comfort series III Seat enhances operator comfort，The degree of fatigue is reduced。

High backrest design and extra thick contoured seat cushion。

Air suspension system。

Levers and controls for the seat are within easy reach，Adjustable in six directions。

Seat-mounted implement control box and move with seat STIC Steering device。

76 mm（3"）Wide retractable seat belt。

Trainer seat

Through the standard trainer seat，Other operators can be trained in safety and comfort。

76 mm（3"）Wide retractable seat belt。

Fold-down design，With molded beverage tray and storage area。

Environment

We clean、Comfortable cab environment increases operator productivity。

Viscous cab base and air suspension seat reduce vibration。

The automatic temperature control device keeps the cab at a suitable temperature.。

Pressurize the cab with filtered air。

Noise levels drop to a quiet 69 dB（A）。

Convenient floor-standing tray/Lunch box。

● IntegrationCATTechnology

844K The electronic system is fully integrated with the machine，The integrated operation is realized。This integration makes the machine more intelligent.，And give the operator a more complete view of machine operation，Thereby maximizing the productivity of both.。

VIMS™ 3G

We have been through the third generation of important information management system.（VIMS 3G）Strive to help customers and operators achieve peak performance。

Easy to view Advisor Display has a large screen size。

Improved user interface for intuitive operation，Navigation is simple。

Reduce service time by letting the operator know of machine system problems or operation。

Operator profile

Operator comfort comes from individual machine function settings。Through Advisor Display screen，Personalized profiles can be called up by the operator at any time。

Advisor Store up to 10 separate operator profiles。

By invoking a personalized screen layout，Shorten setup time when changing operators。

● Superior technology to get the job done efficiently

Cat MineStar System The most comprehensive system in the industry，It integrates mine operation technology and mobile device management technology.，Flexible configuration according to specific operation requirements。Its suite of features - Fleet（The motorcade）、Terrain（Terrain）、Detect（Detect）、Health（Health status）And Command（Command）Contains a range of technologies，Make it easy for you to handle everything：Both fleet allocation and status monitoring，Or remote and automatic control。844K Some of these advanced technologies are used.，Some have become standard factory configuration。

CAT FLEET

Fleet（The motorcade）Kits provide full real-time machine tracking、Vehicle allocation and productivity management，Gives you a comprehensive view of all jobs around the world。

TERRAIN FOR LOADING

844K Equipped Terrain（Terrain）The kit manages loading operations with high precision through the use of guidance technology。It improved by 844.K Productivity，And provide you with real-time feedback to improve efficiency。

DETECT

Detect（Detect）The system helps increase operator safety awareness，Thereby improving operational safety.。It includes a range of features.，Designed to assist the operator in observing restricted areas around fixed and mobile equipment。

HEALTH（Health status）

Health The kit displays critical machine status information by event，And display the operation data of the whole fleet.。It has complete equipment health and asset monitoring capabilities，And contains a series of diagnostic、Analysis and reporting tools。Show less information

● Safety first

We are constantly improving our products.，Strive to provide a safe working environment for operators and field workers。

Machine access

A wider boarding ladder with a more gradual angle enhances operator access 844K Security of。

The maintenance area is designed with surface anti-skid walkway and integrated locking./Signing point。

The windshield cleaning platform allows the operator to perform servicing safely and easily。

The maintenance area can be reached from the ground or from a platform，Always maintain three points of contact。

Emergency exit。

View

Optional pull-down shades and heated mirrors ensure excellent visibility，In order to achieve safe operation。

Cat Detect Optional Object Detection System（Rear view camera and radar）Or Vision（Rear view camera）Optional，Gives the operator a more detailed view of the environment around the machine。

Standard HID Lamps provide excellent visibility of the work space。

The cab is fitted with LED Warning beacon light。

Operator environment

Reduced operator exposure to vibration through viscous cab base and air suspension seat。

Low internal noise level。

Trainer seat facilitates safe training of new operators。

Both the operator seat and the trainer seat are fitted with the standard 76 mm（3"）Seat belts。

Electric boarding system

Cat An electric boarding system improves access to the rear platform，Make the main ladder more accessible to the operator。

Ergonomic safety boarding system。

Use wide stairways，Ample space for operators of all sizes。

When using the handrails on each side，The operator can always maintain three-point contact。

Lower platforms that can be raised from cab height or the ground。

If there is a problem with the loader，Operators and instructors can quickly evacuate with the aid of a nearby emergency release valve。

● Save on repair and maintenance costs

844K The machine incorporates a number of design features designed to reduce downtime，Help you succeed。

Longer maintenance intervals for fluids and filter。

Ground or platform access and centralized maintenance points facilitate safe maintenance。

Swing-out doors on both sides of the engine compartment make it easy to perform important daily service check。

Ecological outfall helps simplify maintenance，And prevent potential environmental contaminants from escaping。

Centrally located remote pressure tap。

With the help of important information management system（VIMS，Vital Information Management System）Notice of，Operators and service technicians can fix any problems before they occur，This reduces downtime。

● Top service and support

It has a long reputation CAT Dealer support

Cat The agent is your right partner.，Ready to meet your needs。

Preventative maintenance program and warranty contract。

First-class parts supply。

Improve your efficiency by training your operators。

Cat Original remanufactured parts。

● Reduce the impact on the environment

Sustainability advantage

844K Sustainability in design and manufacturing。

The engine idle shutdown feature prevents unnecessary idling，Helps save fuel。

Use of maintenance-free battery，Can reduce waste discharge。

844K Built for multiple lifecycles。To maximize the service life of the machine，Caterpillar Many sustainability options available，Such as remanufacturing and Certified Rebuild（Certified Renovation）Plan。In these plans，40% savings on reused or remanufactured component% To 70% The cost of，Thereby reducing operating costs.。

Caterpillar Complete renovation available，Bring new features to old machine，Maximize your resources。In addition，When you implement Cat When the renovation plan is certified，These refurbishment kits are part of the refurbishment process。

● Specially madeCATTooling

Reliable blade

Choosing the Right Blade for Your Bulldozer Application，Thereby maximizing productivity.。

High strength ribbed structure。

Large scale Cat Bolt-on cutting edge and bottom wear plate for track-type tractor。

Optimized width and capacity for excellent dozing capacity and rolling characteristics。

Coal Shovel

• Cat The coal shovel is designed to maintain load control and accommodate large volumes of lighter material，Helps increase productivity。

SU Shovel

Will S Shovel and U The characteristics of the shovel are integrated.，Increased capacity，While maintaining the excellent paving characteristics of the straight blade。

Heavy duty SU Shovel

Paragraph SU Shovels provide unmatched durability in high-wear operating environments，Its features include：

Hardox 400 Liner and side panels

Further increase in blade bottom strength