The Cat® 772 Off-Highway Truck has been in production since 1971 and has been handling the work of mines and quarries for over 40 years. Like all Cat trucks, it is specifically designed for off-road applications with reliable and durable designs. Cat G Series trucks will help you manage your costs with fuel economy options, tire monitoring, and convenient service center options. It can also be equipped to provide you with production, machine health, and operation information using Cat VIMS™. With three body options designed to last the life of the truck, the 772G can meet your individual hauling needs productively, safely, and reliably.
Nominal Payload Class (100%) | — |
Engine Model | Cat® C18 ACERT™ |
Top Speed - Loaded | — |
Engine Model | Cat® C18 ACERT™ |
Rated Engine Speed | — |
Gross Power - SAE J1995 | — |
Net Power - SAE J1349 | — |
Net Power - ISO 9249 | — |
Net Power - 80/1269/EEC | — |
Engine Power - ISO 14396 | — |
Net Torque - SAE J1349 | — |
Number of Cylinders | 6 |
Bore | — |
Stroke | — |
Displacement | — |
Note (1) | Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard. |
Note (2) | 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 (3) | No engine derating required up to 3000 m (9,843 ft) altitude. |
Note (4) | Available as Tier 3/Stage IIIA equivalent, OR Tier 2/Stage II equivalent emission standards. |
Note (5) | Meets China Nonroad Stage III emission standards equivalent to U.S. EPA Tier 3 or U.S. EPA Tier 2. |
Target Gross Machine Operating Weight | — |
Chassis Weight | — |
Body Weight | — |
Note (1) | Chassis weight with 100% fuel, hoist, body mounting group, rims and tires. |
Note (2) | Body weight is the standard Dual Slope body with no liner and will vary depending on configuration. |
Nominal Payload Class (100%) | — |
Top Speed - Loaded | — |
Target Payload (100%) | — |
Maximum Working Payload (110%) | — |
Maximum Allowable Payload (120%)* | — |
Body Capacity (SAE 2:1)** | — |
Note | *Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. |
Note (1) | **ISO 6483:1980. |
Note (2) | Capacity with Dual Slope body with no liner. |
Forward - 1 | — |
Forward - 2 | — |
Forward - 3 | — |
Forward - 4 | — |
Forward - 5 | — |
Forward - 6 | — |
Forward - 7 | — |
Reverse | — |
Note | Maximum travel speeds with standard 21.00R33 (E4) tires. |
Differential Ratio | 2.74:1 |
Planetary Ratio | 4.80:1 |
Total Reduction Ratio | 13.14:1 |
Brake Surface - Front | — |
Brake Surface - Rear | — |
Brake Standards | ISO 3450:2011 |
Pump Flow - High Idle | — |
Relief Valve Setting - Raise | — |
Relief Valve Setting - Lower | — |
Body Raise Time - High Idle | — |
Body Lower Time - Float | — |
Body Power Down - High Idle | — |
Struck | — |
Heaped (SAE 2:1)* | — |
Note (1) | Contact your local Cat dealer for body recommendation. |
Note (2) | *ISO 6483:1980. |
Struck | — |
Heaped (SAE 2:1)* | — |
Note (1) | Contact your local Cat dealer for body recommendation. |
Note (2) | *ISO 6483:1980. |
Front Axle - Empty | — |
Front Axle - Loaded | — |
Rear Axle - Empty | — |
Rear Axle - Loaded | — |
Empty Loaded Cylinder Stroke Front | — |
Empty Loaded Cylinder Stroke Rear | — |
Rear axle - Oscillation | 8.9° |
Fuel Tank | — |
Cooling System | — |
Crankcase | — |
Differential - Final Drives | — |
Steering Tank | — |
Steering System - Includes Tank | — |
Brake/Hoist Hydraulic Tank | — |
Brake Hoist System | — |
Torque Converter - Transmission System | — |
Steering Standards | SAE J1511 FEB94 ISO 5010:2007 |
Steer Angle | 40.5° |
Turning Diameter - Front | — |
Turning Circle - Clearance Diameter | — |
Standard Tire | 21.00R33 (E4) |
Note (1) | Productive capabilities of the 772G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. |
Note (2) | Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection. |
FOPS Standards | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. |
ROPS Standards | Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. |
Inside Body Depth - Maximum | — |
Rear Axle - Tail | — |
Centerline Front Tire Width | — |
Centerline of Rear Dual Tire Width | — |
Ground Clearance | — |
Operating Width | — |
Front Canopy Height | — |
Loading Height - Empty | — |
Inside Body Length | — |
Engine Guard Clearance | — |
Outside Body Width | — |
Overall Length | — |
Overall Height - Body Raised | — |
Overall Tire Width | — |
Dump Clearance | — |
Inside Body Width | — |
Height - Top of ROPS | — |
Rear Axle - Clearance | — |
Wheel Base | — |
Overall Body Length | — |
Cat diesel engines are built to the highest quality standards with tight tolerances and proven piston, camshaft, engine block, and fuel system designs for excellent performance and life.
The Cat planetary power shift transmission is an automatic, 7-speed transmission built for heavy-duty, off-road applications including those with long, uphill grades. This transmission is managed with APECS, a strategy that provides an exceptionally smooth ride and allows power to carry through the shift points for excellent performance and speed on grades. In addition to delivering a quick and responsive truck, APECS is managing clutch pressures for long-life reliability.
With its Cat power train components running in 7th gear, the 772G has a top speed of 79.7 km/h (49.5 mph).
Standard fuel economy is switch activated from within the cab. This economy mode works by reducing engine power. Customers can adjust the savings by reducing the power output of the truck by 0.5 to 15 percent.
This economy mode uses on-board sensors and electronics to find opportunities to reduce power based on steady state speed. Customers will set a productivity threshold that the truck should stay above. The truck will regulate the power level based on the haul profile and may change the power of the truck several times in one haul.
Auto Neutral Idle can have a measureable impact on fuel savings. It works by placing the truck in a neutral state if the operator has been idle in a forward gear with the brake or retarder applied. The truck will automatically resume the forward gear when the brake is released or the throttle is applied.
This feature must be activated by the customer. If engaged, the truck will warn the operator that it is about to shutdown after a prolonged period of idling in “Park.” Customers can set the idle time limit. When the time limit is reached, the truck will shut off the engine.
Speed limiting is a new feature for G Series trucks and is offered as an alternative to gear limiting. It offers customers both fuel saving and component wear benefits. Speed limiting allows the truck to find the most fuel efficient gear and engine speed while traveling at a set limit. Speed limiting will also work with Automatic Retarding Control (ARC).
With its APECS transmission strategy, G Series trucks are carrying more torque and throttle through the shifts. The fuel benefit comes from recovering quickly during shifts and carrying more momentum up grades.
An important differentiator for Cat trucks is their outstanding brake performance. The design principle is one of long-life and excellent performance in quarry, mine, and earthmoving applications.
Cat trucks are equipped with hydraulically actuated, rear brakes and caliper-disc front brakes. Each truck offers primary service brakes, hydraulic retarding, and a parking brake.
Each truck offers primary service brakes, hydraulic retarding and a parking brake.
Two hydraulic accumulators provide the pressure required for the service brakes. The second accumulator acts as a back up. On the rear axle, the oil-cooled, multiple disc brakes have large discs that provide fade resistant performance. The parking brake is applied on the rear brakes and can hold the machine, with rated load, on a 15 percent slope. In turn, the service brakes are designed to hold the truck on slopes of 20 percent.
Automatic Retarding Control is standard on the 772G. This feature controls truck speed by automatically applying brake force when the engine exceeds a set rpm. Operators can adjust the engine speed between 1950 and 2200 rpm. This feature is important because it does the work of controlling truck speed on long, downhill hauls without constant input from the operator; it’s smooth for greater control and has a tendency to provide faster cycle times over manual retarding. As a precautionary feature, ARC will automatically engage to prevent engine overspeeding at any time during truck operation.
Caterpillar offers an optional engine brake. This engine brake works with ARC to control speed on grade. By incorporating engine braking with Automatic Retarding, customers can reduce brake component wear and achieve faster cycle times.
If your ground conditions are wet or slippery, the 772G is equipped with Traction Control that engages quickly and effectively to control tires that are slipping.
The system is steering sensitive to differentiate between turning or slipping, allowing the system to engage at slow speeds and much sooner in the slip.
Once the system is engaged, it responds quickly by using the hydraulically-applied service brakes, not the spring-applied secondary brake. TCS regains traction faster by instantly modulating braking and power between the two rear wheel groups keeping your haul trucks moving and productive.
By reacting quickly and at slow speeds, tire life and cycle times both benefit.
Note: TCS is optional on this machine.
Caterpillar has body options to meet your material type and application needs. Cat truck bodies will last the life of the truck if properly configured, guarded, and maintained.
Flat Floor and Dual Slope bodies are lined with 16 mm (0.62 in) of 400 Brinell Hardness Number (BNH) high-impact steel.
Caterpillar offers a single, 16 mm (0.62 in) steel liner that can be added to the Flat Floor and Dual Slope bodies to protect against high impact and highly abrasive materials.
Caterpillar offers a purpose-built Quarry body for soft limestone quarries. This body has a 25 mm (0.98 in), 400 BNH steel floor and does not require additional liners if kept in limestone.
Customers who are loading extremely hard material that has high impact characteristics should consider a factory-installed rubber liner system. This system is intended for hard rock and should not be considered for machines that could be loaded with clay, cohesive material or hot material.
Cat bodies are equipped to retain high-capacity loads for long hauls and to travel up steep grades; however, overloading a truck can negatively impact productivity, reduce tire life, and increase haul road maintenance costs.
Caterpillar’s 10/10/20 Payload Policy is in place to help you maximize productivity with optimum component life and availability of your truck. Your Cat dealer can further explain the 10/10/20 policy. For optimum body life, Caterpillar recommends that 110% payloads occur no more than 10% of the time and that the average of all loads equal the target payload. Payload should never exceed 120% of target.
Cat trucks are known throughout the industry for reliable, long-life frames. Built for off-road maneuvering and haul road conditions, Caterpillar uses castings in high stress areas and box section construction to manage torsion-loading.
Mild steel is used for its tensile strength and ease of welding, an important feature in being able to make field repairs. The frames are built on a platform that rotates 360 degrees, allowing consistent, deeply-penetrating welds. Each frame is subject to quality and conformance testing prior to assembly.
Both optional and standard features like those described here can increase the productivity of your operators:
The Cat gauge cluster is a standard display found in the cab. It displays real-time machine performance and operating data. An optional Advisor display allows a greater degree of communication with the truck and from the truck.
VIMS is the Cat Vital Information Management System. This information management system is integrated into the engine, chassis, and all other electronic controllers to deliver valuable information on machine health and productivity. This system uses the Advisor Display to communicate data. VIMS reports provide histograms on truck operation, payloads, and cycle times. These reports can help you manage your fleet, site, and provide production levels.
Cat Product Link™ allows remote monitoring of equipment to improve overall fleet management effectiveness. Events and diagnostic codes as well as hours, fuel, idle time, and other detailed information are transmitted to a secure web-based application – VisionLink®. VisionLink includes powerful tools to convey information to our customers and their dealers, including mapping, working and idle time, fuel level and more. Product Link is not available in all areas, please check with your local Cat dealer.
The Cat Truck Production Management System is an optional tool to help you manage your operations. Indicator lights on the truck tell the loader operator they have additional loads to put on the truck (solid green light) as well as one last pass (blinking red light) and then when the truck is loaded (solid red light). Truck Production Management System will track loads, cycle times, and payload data – up to 2,400 cycles – and reports out through the on-board display or VIMS. The system takes two payload measurements; the first after loading and a second as the truck pulls away in 2nd gear. This is done for greater accuracy.
TKPH/TMPH stands for Ton Kilometer per Hour/Ton Mile per Hour. This optional feature is an on-board tool that takes the manufacturer’s tire rating and in real time, compares it with ambient temperature, payload, and truck speed. If the tires are calculated to be approaching their temperature limits, the operator will receive a warning. If the tire temperature condition becomes critical, your truck can be set up to automatically reduce (or limit) speed to allow cooling.
Cat dealers offer a wide range of solutions, services, and products that help you lower costs, enhance productivity, and manage your operation more efficiently. Support goes far beyond parts and service. From the time you select a piece of Cat equipment until the day you rebuild, trade or sell it, your Cat dealer will stand behind your business with solutions that range from operator training to jobsite solutions. For more information on how Caterpillar and its dealers can support you, please visit the following web sites:
www.cat.com/safety
www.Mining.cat.com
www.Caterpillar.com
www.Cat.com
We bring about progress for our communities by producing aggregate and minerals for new roads, bridges, and energy. Cat trucks are being designed to do this work with less of an impact on the environment, by being quiet, using less fuel, emitting fewer emissions, and incorporating solid, long-life designs and components.
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