Incarcatoare frontale de talie mare Cat® 988K XE

Cat® Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely at a lower cost per ton.
Introduced in 1963, the 988 has been the industry leader for over 50 years, built on a legacy of reliability, performance, safety, operator comfort, serviceability, and productivity. The 988K XE brings improved sustainability and maximum efficiency to this machine platform.

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ATTACHMENTS TO MEET YOUR NEEDS

Enhance the productivity of your loader and protect your investment in buckets with our Ground Engaging Tools (GET). Your knowledgeable Cat dealer will work with you to understand your application and needs for the GET that is best for you.

Rock Buckets

Designed for use in bank or face loading of limestone and other unprocessed rock. Application also includes truck and hopper loading for a wide range of quarry materials. GET includes spade nose cutting edge with adapters, half arrow segments, bottom wear plates, and sidebar protectors.

Heavy Duty Rock Buckets

Designed for use in applications like face loading tightly compacted pit materials or handling materials of moderate abrasion and high impacts. GET are similar to the rock bucket with the addition of floor liner, half radius liners and bolt-on bottom edge wear plates. 20-series mechanically attached wear plates (MAWPS) are provided for additional wear protection and improved serviceability. Base edge end protection, ski plates, additional side wear plates, wings and an extra set of sidebar protectors are also included.

General Purpose Buckets

Designed for use primarily in stockpiling, re-handling and aggregate applications. GET includes a straight base edge with a bolt-on cutting edge system. Curved sidebars are provided to aid in material retention on the 12.5 yard (9.6 cubic meters) aggregate bucket only.

Coal Buckets

Designed with a larger capacity for use in applications with light density and non-abrasive materials. GET includes a straight base edge with a bolt-on cutting edge system.

Cat Advansys™ Ground Engaging Tools

Protect expensive components. Reduce your operating costs. Get the most out of your machine's performance. Choose from a variety of performance-built Advansys GET like these to meet your application requirements.

  • CapSure™ Sidebar Protector
  • MAWPs – on Side and Bottom
  • Base End Edge Protector
  • CapSure Tip Options: Heavy Duty Tip
  • CapSure Tip Options: Heavy Abrasion Tip
  • CapSure Tip Options: Coal Tip
  • CapSure Tip Options: Heavy Penetration Tip
  • Edge Protection Options: CapSure Shrouds
  • Edge Protection Options: Half Arrow Segment
Please check out our Parts Catalog for more GET options.

CapSure™ Retention Technology

Simplify GET component replacement with hammerless CapSure retention for fast, easy and safe installation. CapSure tips, shrouds and sidebar protectors are easily locked and unlocked with a 180 degree turn of a 3∕4 inch (19 mm) ratchet.

PERFORMANCE AND PRODUCTIVITY

Positive Flow Control Hydraulics

Increase efficiency through our Positive Flow Control (PFC) Hydraulic System. PFC has concurrent pump and valve control. By optimizing pump control, hydraulic oil flow is proportionate to implement lever movement.

  • Fast, productive cycles are enabled by the fully variable implement pump.
  • Increase bucket feel and control through increased hydraulic response.
  • Consistent performance and efficiency with lower system heat.
  • Full hydraulic flow down to 1,400 engine rpm enabled by flow sharing technology.

Electro Hydraulic Controls

Operators increase productivity with our responsive implements feature.

  • Operate comfortably through electronically controlled hydraulic cylinder stops.
  • Handle easy-to-use soft detent controls.
  • Conveniently set automatic implement kickouts from inside the cab.

Steering System

Confident loader operation starts with precise machine control enabled by the 988K XE's load sensing hydraulic steering system.

  • Increase efficiency with our variable displacement piston pumps.
  • Achieve precise positioning for easy loading in tight areas with 43 degrees of steering articulation.
  • Enhance operator comfort with integrated steering and transmission control functions.

Filtration System

Benefit from extended performance and reliability of your hydraulic system with our advanced filtration system.

  • Case drain screens.
  • Hydraulic oil cooler return filter.
  • Pilot filter.
  • In-tank return screens.
  • Axle oil cooler screens if equipped.

LONG TERM VALUE AND DURABILITY

Robust Structures

Your bottom line is improved by highly durable structures that achieve multiple life cycles and withstand the toughest loading conditions.

  • Full box-section rear frame resists torsional shock and twisting forces.
  • Heavy-duty steering cylinder mounts efficiently transmit steering loads into the frame.
  • Axle mounting has been optimized for increased structural integrity.
  • Lower hitch pin, frame plate, and bearing size have been increased for longer life.

Lift Arms

  • Excellent visibility to the bucket edges and work area through a Z-bar design.
  • High load stresses are absorbed by the solid steel lift arms.
  • Enhance strength in key pin areas through the use of one piece castings.
  • Stress relieved lift arms increase durability and lengthen time to repair.

Front Linkage

To ensure long life and reliability, the linkage pin joints feature a greased pin design with an auto lube system attachment available from the factory.

SAFETY FIRST

We are constantly improving our products in an effort to provide a safe work environment for the operator and those who work on your job site.

Machine Access

  • Left and right hand stairs with 45 degree angle enhance safety for operators getting on and off the 988K XE.
  • Continuous walkway with non-skid surfaces are designed into the service areas.
  • Maintain three points of contact at all times through ground level or platform accessible service areas.

Visibility

  • Optional heated mirrors ensure enhanced visibility for safe operation.
  • Standard Cat Vision or optional Cat Detect with radar increase operator awareness around the machine.
  • Optional HID or LED lights provide excellent workspace visibility.
  • Optional cab mounted LED warning beacons.

Operator Environment

  • Reduced vibrations to the operator with isolated cab mounts and seat mounted implement and steering controls.
  • Low interior sound levels.
  • Pressurized cab with filtered air.

PROVEN RELIABILITY

Cat Switched Reluctance Electric Drive System

  • Continuously variable speed control up to maximum ground speed.
  • Implemented virtual gears for machine controllability.
  • Automatic retarding controls for maintaining speed on grade.
  • Extended maintenance intervals over mechanical power trains.
  • Fewer moving parts than traditional torque converter and mechanical transmission systems.
  • Elimination of the shifting simplifies operator controls thus accelerating the learning curve of new operators.

Cat Switched Reluctance Electric Generator and Pump Drive

  • Fewer moving parts than traditional torque converter systems.
  • Extended maintenance intervals over mechanical power trains.
  • Integrated controls provide power on demand.
  • Integrated pump drive for seamless hydraulic performance.

Cat Integrated Powered Electronics

  • Fully sealed to protect from the elements.
  • Liquid cooled to extend component life.
  • Solid state components maximize durability in extreme conditions.

Cat Switched Reluctance Electric Drive Motor

  • Continuously variable speed control up to maximum ground speed.
  • Implemented virtual gears for machine controllability.
  • Automatic retarding controls for maintaining speed on grade.
  • Extended maintenance intervals over mechanical power trains.

Steering and Transmission Integrated Control System (STIC™)

Experience maximum responsiveness and control with STIC that combines directional selection, virtual gears and steering into a single lever.

Variable Torque Control and Rimpull Control System (RCS)

Lower your cost per ton utilizing advanced torque control and RCS for modulated rimpull.

  • Reduce tire slippage and wear by modulating rimpull from 100 to 25 percent while depressing left pedal. After 25 percent rimpull is achieved the left pedal applies the brake.
  • Reduce the potential for wheel slippage without reducing hydraulic efficiency with RCS.

Automatic Retarding Controls

  • Maintain operator safety and efficiency by controlling speed on grade.
  • Machine sets maximum allowable speed.
  • Operator controls speed up to maximum allowed.

PRODUCTIVITY WITH TECHNOLOGY

Integrated electronics provide flexible levels of information to both the site and the operator. This integration creates a smart machine and more informed operator, maximizing the productivity of both.

Information Display

We have worked hard to help our customers and operators perform at their best through our newly upgraded touch screen information display.

  • Intuitive operation and easy navigation with our enhanced user interface.
  • Decrease service time by keeping operators informed about machine systems.

Maschinendatenerfassungssystem (Vital Information Management System, VIMS™)

Connect directly to the machine for access to a wide range of sensor information and enhanced machine data.

  • Create productivity reports with payload and work cycle segmentation.
  • Identify operator training needs through productivity data.
  • Detailed data logging of machine parameters and diagnostic codes.
  • Track machine sensor information with trend analysis and histograms to monitor machine health.

Tire Pressure Monitoring System (TPMS)

Tire pressure monitoring is a fully integrated feature which allows operators to monitor inflation of tires. Available through the Information Display, the operator can quickly see the current pressure settings and temperature of each tire.

Система Cat Production Measurement (CPM)

Cat Production Measurement brings payload weighing to the cab so operators can work more productively and deliver accurate loads with confidence. CPM brings advanced weighing modes which assist with payload accuracy and speed the loading cycle.

OPERATOR COMFORT AND CONTROL

Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.

Entry and Exit

Enter and exit the cab easily and safely with these newly designed, ergonomic features.

  • Fold up STIC steer/armrest.
  • 45 degree access stairway angles.
  • Standard stairway lighting.

Deluxe Operator Seat

Enhance comfort and helps reduce operator fatigue with Cat Comfort Series III seat.

  • Heated and ventilated seat featuring leather seat bolster surfaces.
  • High back design and extra thick, contoured cushions.
  • Air suspension system.
  • Easy-to-reach seat levers and controls for six way adjustments.
  • Seat-mounted implement pod and STIC steer that moves with the seat.
  • 76 mm (3 in) wide retractable seat belt.

Control Panel

Ergonomic placement of switches and information display keep your operators comfortable all day every day.

  • Large backlit membrane switches feature LED activation indicators.
  • Switches feature ISO symbols for quick function identification.
  • Two position rocker switch activates the electro hydraulic park brake.

Environment

Your operator's productivity is enhanced with our clean, comfortable cab environment.

  • Experience reduced vibrations from isolated cab mounts and seat air suspension.
  • Maintain desired cab temperature with automatic temperature controls.
  • Pressurized cab with filtered air.
  • Low operator sound levels.
  • Convenient floor storage tray/lunch box.

POWERFUL EFFICIENCY

While the electric drive transmission replacement on the 988K enables the significant increase in efficiency, the axles and the driveline are the same as on the proven 988K mechanical drive.

Cat C18 Engine

The Cat C18 engine is built and tested to meet your most demanding applications while meeting Tier 4 Final/Stage IV emission standards.

  • Fully integrated electronic engine controls works in concert with the entire machine to make your fuel go farther.
  • Use less fuel idling with Engine Idle Shutdown.
  • Maximized durability with Delayed Engine Shutdown.

Fuel Efficiency

Enabling maximum productivity and efficiency, all day every day.

The 988K XE systems work hard to make you more efficient through advanced electric drive technology.

  • Overall efficiency improvement of 25 percent.
  • Efficiency improvement of up to 49 percent in tough applications.
  • Up to a 10 percent increase in productivity in load and carry applications.

Specificatii tehnice

SPECIFICATII TEHNICE

Engine
Net Power 403 kW
Engine Model Cat® C18 ™
Bore 145 mm
Stroke 183 mm
Displacement 18.1 l
Rated Speed 1,700 rpm
Peak Torque @ (speed) - SAE J1995 2852 N·m
Net Power - SAE J1349 403 kW
Torque Rise 58%
Peak Power Speed - 1,500 rpm - Gross - ISO 14396 432 kW
Emissions U.S. EPA Tier 4 Final/EU Stage IV
Peak Power Speed - 1,500 rpm - Gross - SAE J1995 439 kW
Gross Power - ISO 14396 432 kW
Peak Power Speed 1,500 rpm
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 403 kW
Operating Specifications
Operating Weight 52781 kg
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Rated Payload - Standard (Loose Material) 14.5 ton (US)
Rated Payload - High Lift (Loose Material) 14.5 ton (US)
Rated Payload - Standard (Face Material) 11.3 ton (US)
Rated Payload - High Lift (Face Material) 11.3 ton (US)
Transmission
Transmission Type Cat switched reluctance electric drive
Forward 4 (virtual) 32.1 km/h
Reverse 3 (virtual) 28.2 km/h
Forward 2 (virtual) 11.3 km/h
Reverse 2 (virtual) 11.3 km/h
Forward 3 (virtual) 22.2 km/h
Reverse 1 (virtual) 7 km/h
Forward 1 (virtual) 7 km/h
Hydraulic System - Lift/Tilt
Lift Cylinder - Bore 210 mm
Lift/Tilt System - Pump Variable displacement piston
Lift/Tilt System - Circuit EH-Positive Flow Control, Flow Sharing
Maximum Flow at 1,400-1,600 rpm 580 l/min
Lift Cylinder - Stroke 1050 mm
Relief Valve Setting - Lift/Tilt 32800 kPa
Tilt Cylinder - Bore 269 mm
Tilt Cylinder - Stroke 685 mm
Service Refill Capacities
Fuel Tank 555 l
Transmission 60 l
Cooling System - Jacket Water 112 l
Differential - Final Drives - Rear 186 l
Cooling Systems - Power Train 30 l
Differential - Final Drives - Front 186 l
Engine Crankcase 60 l
Diesel Exhaust Fluid Tank 33 l
Hydraulic System - Implement/Steering 475 l
Buckets
Bucket Capacities 4.7-13 m3 (6.2-17 yd3)
Axles
Front Fixed
Rear Trunnion
Oscillation Angle 13°
Brakes
Brakes ISO 3450:2011
Hydraulic System - Steering
Steering Cycle Times - High Idle 3.4 s
Total Steering Angle 86°
Maximum Flow at 1,400-1,600 rpm 270 l/min
Steering Cycle Times - Low Idle 5.6 s
Steering Cut Off Pressure 30000 kPa
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement
Hydraulic Cycle Times
Rack Back 4.5 s
Raise 8 s
Lower Float Down 3.5 s
Total Hydraulic Cycle Time 18.2 s
Dump 2.2 s
Sound Performance - Tier 4 Final/Stage IV
Machine Sound Level (ISO 6395) 109 dB(A)
Operator Sound Level (ISO 6396) 72 dB(A)
Note (1) The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (2) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Dimensions (Approximate) - Standard Lift
Rear Axle - Centerline to Bumper 3187 mm
Note Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.
Dimensions (Approximate) - High Lift
Ground to Lower Hitch Clearance 568 mm
Dimensions (Approximate) - Standard Lift
Maximum Overall Height - Bucket Raised 7455 mm
Dimensions (Approximate) - High Lift
B-Pin Height - Maximum Lift 5881 mm
Dimensions (Approximate) - Standard Lift
Ground to Top of ROPS 4187 mm
Dimensions (Approximate) - High Lift
Rear Axle - Centerline to Bumper 3187 mm
Clearance at Maximum Lift 3882 mm
Ground to Bumper Clearance 933 mm
Ground to Top of Hood 3334 mm
Air Conditioning System
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
Dimensions (Approximate) - Standard Lift
Ground to Top of Exhaust Stacks 4498 mm
Dimensions (Approximate) - High Lift
Front Axle Centerline to Bucket Tip 4854 mm
Ground to Top of Exhaust Stacks 4498 mm
Operating Specifications
Operating Weight - Standard 52781 kg
Dimensions (Approximate) - Standard Lift
Wheel Base 4550 mm
Dimensions (Approximate) - High Lift
Reach - Maximum Lift 2130 mm
Dimensions (Approximate) - Standard Lift
B-Pin Height - Maximum Lift 5479 mm
Dimensions (Approximate) - High Lift
Maximum Overall Length 12582 mm
Wheel Base 4550 mm
Dimensions (Approximate) - Standard Lift
Reach - Maximum Lift 2074 mm
Maximum Overall Length 12204 mm
Dimensions (Approximate) - High Lift
Ground to Top of ROPS 4187 mm
Service Refill Capacities
Note All non-road Tier 4 Final/Stage IV diesel engines are required to use: – The machine has the flexibility to run on either ultra-low-sulfur diesel fuel (ULSD with 15 ppm of sulfur or less) or up to B20 biodiesel when feedstock meeting ASTM D7467...
Operating Specifications
Operating Weight - High Lift 54258 kg
Dimensions (Approximate) - Standard Lift
Ground to Bumper Clearance 933 mm
Ground to Lower Hitch Clearance 568 mm
Ground to Center of Axles 978 mm
Hydraulic System - Steering
Steering ISO 5010:2007
Dimensions (Approximate) - High Lift
Ground to Center of Axles 978 mm
Dimensions (Approximate) - Standard Lift
Front Axle Centerline to Bucket Tip 4467 mm
Dimensions (Approximate) - High Lift
Note Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.
Dimensions (Approximate) - Standard Lift
Clearance at Maximum Lift 3445 mm
Sound Performance - Tier 4 Final/Stage IV
Note (3) The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Dimensions (Approximate) - High Lift
Maximum Overall Height - Bucket Raised 7849 mm
Operator's Cab
ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Dimensions (Approximate) - Standard Lift
Ground to Top of Hood 3334 mm
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