Tata Hitachi EX 8000-6 Excavator

Powerful Engines: Proven twin Cummins diesel engines deliver a combined 2 x 1,450 kW (2 x 1,940 HP), ensuring exceptional performance for heavy excavation tasks.

Emission Control Engine: Compliant with U.S. EPA Tier II regulations, it helps protect the environment by reducing emissions.

Hitachi's computer-aided Engine-Pump Control (E-P Control) coaxes optimum effi ciency from the engines and hydraulic pumps. This innovative system senses load demand and controls engine and pump output for maximum operating effi ciency.

Flow-Assisting Circuit: Using the meter-in valves, ample-capacity makeup valves, and fl ow-assisting pumps, the fl ow speed is increased in cylinders for dynamic actions. Especially, between dumping and digging.

The larger loading shovel bucket, with a capacity of 40.0 m³, enhances work efficiency and capacity.

The maximum excavating force includes a crowding force of 2,870 kN (293,000 kgf) and a breakout force of 2,230 kN (227,000 kgf).

The large bucket has been shaped specifi cally to enhance scooping and loading operations. Its sharp tilt angle helps boost operating effi ciency.

Rigid Box Design: Computer-assisted analysis was used to check that the frame box can withstand heavy-duty excavation work.

Solid Cast Track Frame: The track frame is cast as a solid unit and includes a fl ange for improved reliability. This non-welded design is used exclusively on large Hitachi models.

Rugged Lower Rollers, Track Links and Drive Tumblers: Lower rollers, track links and drive tumblers are newly designed to sustain the giant body for increased durability and serviceability.

Constant Correct Track Tension: Helps prevent abnormal track tension from causing damage. Travel is automatically stopped if accumulator pressure exceeds a preset level. At this time, alert information and countermeasures are indicated on the multi-display monitor.

Flow-Retarding Control at Cylinder Stroke Ends: When nearing 30 cm ahead of the cylinder stroke end, the fl ow and pressure are reduced to retard the cylinder movement. This helps reduce impact at the stroke end to increase controllability and to extend service life. This mechanism is provided for arm/ bucket roll-in and roll-out.

Strategically Positioned Oil Coolers: Three oil coolers are used for optimal cooling effi ciency. They are positioned far from the engine radiator for even better cooling potential.

High-Pressure Filter: Hydraulic oil is fi ltered at high pressure to remove damage-causing contaminants. This fi lter is positioned down-line from the pumps to help prevent damage in the rare event of pump failure. Positioned for easy maintenance.

High Visibility 9.0 Meter Cab Height: Gives the operator a clear view, even when a large 300 tonnes class dump truck is being loaded. This high height and forward-sloping cab provides a view that boosts productivity.

Rugged Comfortable Cab: Fluid filled elastic mounts help absorb vibration to provide durability and a comfortable ride. The top guard, conforming to OPG* level II (ISO), is provided on the cab roof.

Plenty of Utility Space: Plenty of utility space is provided behind the operator seat to hold a table, electronic oven, and refrigerator. This allows a full 24-hour operation for higher productivity.

Efficient Cab Layout: The ergonomic layout of the cab means the operator will do less stretching and reaching when operating the controls. This adds up to less operator fatigue and greater operating efficiency.

Intelligent Multi-Display Monitor provides machine data and operating status at a glance.

Electric joystick control levers have a feather-touch allowing long periods of effortless operation. Its stroke is much shorter than that of hydraulic control.

Air Suspension Seat with Auto Operator Weight Adjuster: The operator seat cushion can automatically be adjusted according to the operator weight. This is convenient for a machine operated by two or more operators.

Adjustable Sliding Cockpit: The operator can adjust the position of the levers and the seat to custom fit his size and operating style.

Constant-Cab-Comfort Air Conditioner: The operator can monitor machine conditions and operating status with a 10.5-inch color LCD. The controller provides instant fault diagnosis through all sensors, displaying warnings and countermeasures if failure arises.

Outside Cameras (Optional): The operator can monitor around the machine, using four cameras (optional) to eliminate blind spots.

Easier Access and Wide Open Service Area: The wide fender, spacious counterweight top and central passage give easy access to major components for convenience of inspection and maintenance. This means faster and safer inspection and maintenance.

Folding Stairs with Wide Steps: Folding stairs is designed for easy access to the machine for servicing and maintenance.

Auto Lubrication System: This system automatically lubricates the front joint pins and swing circle. This eliminates cumbersome daily lubrication. A spare pump is provided standard for the auto lubrication system.

The Centralized Lubrication System for Fast Filling System

Easy Bucket Tooth Replacement: Innovative bucket tooth and shrouds are used to cut maintenance time.

Convenient 24 Volt DC Crane: This is a handy item when handling heavy tools or other items.

Protective Engine and Pump Bulkhead Contributes to lower heat and less potential for damage.

Low Maintenance Dust Ejector Automatically expels dust from the air cleaner.

Contamination Sensor: This system detects accumulated contaminants that could cause damage and alerts the operator before trouble occurs.

The MIC Mining comprises the DLU (Datalogging unit) on the machine DLU continuously records performance of the engine and the hydraulic system. The record can be download by PC and PDA*.