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CAT Off-Highway Truck 777E

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Overview

Operating Specifications

Nominal Payload Class (100%)
97.98 tonne
Top Speed - Loaded
65.9 km/h

Engine

Engine Model
Cat C32 ACERT
Gross Power – SAE J1995
758 kW
Net Power – SAE J1349
708 kW
Bore
145 mm
Stroke
162 mm
Displacement
32.1 L
Cylinders
12
Engine Power – ISO 14396
749 kW
Engine Speed
1750 rpm
Net Torque @ 1,300 rpm
4757 N·m
Net Torque Rise
23%
Emissions
Meets U.S. EPA Tier 2 Equivalent emission standards.
Emissions
Certified for China Nonroad Stage III emission standards.
Brake Surface Area – Rear
102116 cm2
Body System Weight
16070 kg
Empty Operating Weight
65158 kg
Target Payload
98202 kg
Body System Weight
16070 kg
Empty Operating Weight
70753 kg
Target Payload
92607 kg
Body System Weight
15900 kg
Empty Operating Weight
64988 kg
Target Payload
98372 kg
Body System Weight
15900 kg
Empty Operating Weight
69674 kg
Target Payload
93686 kg
Height to Top of ROPS – Loaded
4730 mm
Wheel Base
4570 mm
Ground Clearance
896 mm
Operating Width Extended Catwalk
6545 mm
Center Line Front Tire Width
4163 mm
Overall Front Tire Width
4961 mm
Front Canopy Height – Loaded
5177 mm
Center Line Rear Dual Tire Width
3576 mm
Height to Top of ROPS – Loaded
4730 mm
Wheel Base
4570 mm
Ground Clearance
896 mm
Operating Width Extended Catwalk
6545 mm
Center Line Front Tire Width
4163 mm
Overall Front Tire Width
4961 mm
Front Canopy Height – Loaded
5370 mm
Center Line Rear Dual Tire Width
3576 mm

Turning Circle

Note
Power rating applies at 1,750 rpm when tested under the specified condition for the specified standard.
Note
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Note
Maximum travel speeds with standard 27.00R49 (E4) tires.
Note
No engine derating required up to 3048 m (10,000 ft) altitude.
Note
The operator sound exposure Leq (equivalent sound pressure level) measured according to work cycle procedures specified in SAE J1166:2008 is 80 dB(A) for cab offered by Caterpillar, when properly installed and maintained and tested with doors and windows
Note
The dynamic operator sound pressure level is 80 dB(A) as per ISO 6396:2008 for cab offered by Caterpillar. When properly installed and maintained and tested with doors and windows closed.
Note
Separate hydraulic system prevents cross-contamination.
Note
Productive capabilities of the 777E truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
Note
Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.

Capacity - Dual Slope - 100% Fill Factor

Struck
42.1 m3
Heaped 2:1 (SAE)
60.1 m3
Struck
43.1 m3
Heaped 2:1 (SAE)
64.1 m3

Weight Distributions – Approximate

Front Axle – Empty/Loaded
44%/30%
Rear Axle – Empty/Loaded
56%/70%

Transmission

Forward 1
10.7 km/h
Forward 3
19.8 km/h
Forward 5
36.2 km/h
Forward 7
65.9 km/h
Reverse 1
12.1 km/h

Final Drives

Differential Ratio
2.74:1
Planetary Ratio
7.00:1
Total Reduction Ratio
19.16:1

Brakes

Brake Standard
ISO 3450:2011
Brake Surface Area Front Caliper
2787 cm2
Brake Surface Area Front OCDB
40846 cm2

Service Refill Capacities

Fuel Tank
1140 L
Cooling System
212 L
Steering System (Includes Tank)
59 L
Crankcase
113.5 L
Differentials
222 L
Final Drives (each)
42 L
Torque Converter/Brake/Hoist Hydraulic Tank
385 L
Transmission System
122 L

Body Hoists

Pump Flow – High Idle
491 L/min
Body Raise Time – High Idle
15 secon

Suspension

Rear Axle Oscillation
5.4°
Effective Cylinder Stroke – Front
318 mm
Effective Cylinder Stroke – Rear
165 mm

Steering

Turning Diameter – Front
25.3 m
Steering Standard
ISO 5010:2007
Steer Angle
30.5°
Turning Circle Clearance Diameter
28.4 m

Tires

Standard Tire
27.00R49 (E4)

Weights

ROPS
ROPS (Rollover Protective Structure) cab offered by Caterpillar meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
FOPS
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 for Operator and ISO 13459:2012 Level II FOPS criteria for Trainer.

Sound

Sound Standards
ISO 6393:2008, SAE J1166:2008

Weights - Approximate

Target Gross Machine Weight
163360 kg
Target Gross Machine Weight
163360 kg
Target Gross Machine Weight
163360 kg
Target Gross Machine Weight
163360 kg

Dimension

Overall Body Length
9555 mm
Inside Body Length
6870 mm
Overall Length
10004 mm
Rear Axle to Tail
3045 mm
Dump Clearance
890 mm
Loading Height – Empty
4380 mm
Inside Body Depth – Maximum
1895 mm
Overall Height – Body Raised
10050 mm
Operating Width
6105 mm
Engine Guard Clearance
864 mm
Overall Canopy Width
6056 mm
Outside Body Width
5524 mm
Inside Body Width
5200 mm
Rear Axle Clearance
902 mm
Overall Tire Width
5262 mm
Overall Body Length
10070 mm
Inside Body Length
7258 mm
Overall Length
10230 mm
Rear Axle to Tail
3263 mm
Dump Clearance
818 mm
Loading Height – Empty
4430 mm
Inside Body Depth – Maximum
1777 mm
Overall Height – Body Raised
10400 mm
Operating Width
6105 mm
Engine Guard Clearance
864 mm
Overall Canopy Width
6200 mm
Outside Body Width
5689 mm
Inside Body Width
5450 mm
Rear Axle Clearance
902 mm
Overall Tire Width
5262 mm

Features

Power Train

The updated Cat® C32 ACERT™ engine and powerful torque converter with ECPC (Electronic Clutch Pressure Control) Transmission provides superior performance. The ECPC Transmission with controlled throttle shifting regulates engine speed, torque converter lock-up and transmission clutch engagement for smoother shifts, reduced clutch wear and longer component life.

Fuel Economy

The 777E fuel saving strategies find opportunities to reduce fuel burn and fuel costs. 1) Economy Mode modifies engine maps to take advantage of steady grades and level ground, reducing power and fuel burn. 2) Speed Limiting automatically selects the most fuel efficient gear and speed for the terrain instantaneously. 3) Engine Idle Shutdown identifies when the truck is in park and idles for more than a preset time, and initiates engine shutdown to conserve fuel.

Engine Over Speed Protection

Electronically senses engine conditions and automatically up-shifts one gear to prevent over speeding. If over speeding occurs in the top gear, the lock-up clutch is disengaged, and the brakes are applied.

Operator Comfort

The all new operator station interior is ergonomically designed for total machine control in a comfortable, productive and safe environment. All controls, levers, switches and gauges are positioned to maximize productivity and minimize operator fatigue. Designed for excellent all-around visibility and clear sight lines to the haul road, the large viewing area offers exceptional visibility. The well positioned hand rails ensure three point contact for safe and easy access and emergency egress for the operator.

Diagnostic Capability

Critical power train data, including transmission shifting, engine speed and fuel consumption, provides service technicians with enhanced diagnostic capability to reduce downtime and operating costs.

Electronic Technician (ET)

Cat ET service tool provides service technicians with easy access to stored diagnostic data through the Cat Data Link.

Cab and Access

The 777E cab interior, is completely redesigned to provide better visibility and comfort for the operator. Features include a new dash, advisor display and redesigned center console. Rollover and Falling Object Protection is an extension of the truck frame.

Operator Seat

The Cat Comfort Seat uses full air suspension to smooth rough rides, and has a retractable four-point seat belt with a shoulder harness. A Trainer seat with a lap belt to facilitate on-the-job training.

Brakes

The Cat Front dry caliper with rear oil-cooled multiple disc brakes deliver reliable performance and control in the most extreme haul-road conditions. Wet brakes on rear wheels and gear limiting during body up operations are both standard. If equipped with front oil cooled multiple disc brakes, four corner retarding with a 40/60 percent front/rear split provides superior control in slippery conditions and minimizes wheel lock-up.

Automatic Retarder Control (ARC) (optional)

ARC controls braking on grade electronically, maintaining consistent engine speed, lower fuel burn, and better control.

Traction Control System (TCS) (optional)

The Traction Control System electronically monitors and controls rear wheel slippage for greater traction and enhanced truck performance in poor underfoot conditions. If slippage exceeds a set limit, the rear wet brakes engage to slow the spinning wheel. Torque is then automatically transferred to the wheel with better traction and optimum control.

Steering

Cat integrated steering and suspension system is designed for precise steering, excellent maneuverability, minimal tire wear and superior ride control.

Secondary Steering

Automatically engages if power source for the normal steering fails.

Durability

Rear wheel spindles are solid steel for longer life, and the rear suspension cylinders have been inverted to minimize contamination. These rugged cylinders use large diameter bore and low pressure nitrogen/oil design for long life with minimal maintenance.

Coming soon...............