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eh4000acii

Product catalog summary

Overview: The EH4000AC is a high-capacity dump truck designed for surface mining, featuring advanced engineering and Hitachi's AC Drive system technology. It offers a nominal payload of 222 tonnes and a target gross machine operating weight of 384,000 kg.

Specifications: The truck is powered by a Cummins QSKTA60-CE engine, delivering 1,864 kW (2,500 HP) and is U.S. Tier 2 emission certified. The AC drive system enhances performance, availability, and reduces maintenance costs.

Design and Construction: The truck features a robust frame with a fabricated box section and rectangular frame rail construction for superior resistance to bending and torsional loads. The body design includes horizontal stiffeners to minimize stress concentrations.

AC Drive System: Hitachi's AC drive technology provides superior truck performance with higher speeds, better gradeability, and stronger retardation. The system includes inverter modules and AC wheel motors that reduce maintenance costs and improve truck availability.

Suspension System: The trailing arm suspension system with NEOCON struts offers excellent maneuverability and ease of servicing. The design minimizes lateral forces on the front wheels, reducing tire scuffing and improving stability.

Cab Features: The HI-TECH ROPS/FOPS cab includes a Hitachi controller and a large color LCD for monitoring. It offers a comfortable operating environment with a three-point rubber isolation-mount arrangement to minimize vibration.

Serviceability: The truck is designed for easy maintenance with features like a fast filling system for fluids and easy access to service points. The monitoring system provides diagnostics and integration for efficient troubleshooting.

Performance and Safety: The truck includes a load monitoring system for better equipment utilization and a camera monitoring system for enhanced safety. The AC drive system allows for full retarding capability, reducing the need for service brake application.

Weight and Load Distribution: The truck's net machine weight is approximately 162,000 kg with standard tires, and it offers a nominal payload of 222 tonnes. Weight distribution is optimized for both empty and loaded conditions.

Steering System: The document describes a closed-center, full-time hydrostatic power steering system with two double-acting cylinders and a variable displacement piston pump. Hitachi accumulators ensure constant steering rates under all conditions, complying with ISO 5010 (SAE J1511). The steering wheel offers 35 degrees of tilt and 57 mm of telescopic travel.

Hydraulic System: The hydraulic system features two Hitachi three-stage, double-acting cylinders with electronic cushioning and dual rod seals. A tandem piston pump works with a four-position electronic pilot-controlled hoist valve. Key specifications include a body raise travel of 57.5 degrees, a raise time of 18.0 seconds, and a down time of 13.0 seconds.

Brake System: The brake system complies with ISO 3450 (SAE J1473) and includes an all-hydraulic actuated braking system for precise control. The front axle uses dry discs, while the rear axle features oil-cooled wet discs. The system includes secondary and parking brakes, with automatic application upon pressure loss. Maximum dynamic retarding is 3,200 kW.

Specifications: The document lists standard equipment such as an AC drive system, auto cruise control, and brake blending control. Optional equipment includes heated mirrors, HID headlights, and a sound attenuation package.

Frame and Body: The frame is a full fabricated box section with a high arch design for better serviceability. The body uses high tensile strength alloy steel, with optional body liners available.

Service Capacities: Key service capacities include a main accumulator of 85 L, a crankcase of 260 L, and a hydraulic system of 750 L.

Perimeter Visibility: The truck complies with ISO 5006 and ISO 14401 standards for perimeter visibility, featuring mirrors and cameras.

Dimensions: Dimensions are provided for an empty machine with 46/90R57 tires, with a note that specifications are subject to change without notice.

Catalog excerpts

DUMP TRUCK I Nominal Payload with Standard Equipment : 222 tonnes (244.7 tons) I Target Gross Machine Operating Weight with Standard Tires : 384 000 kg

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Refined engineering and advanced Hitachi AC Drive system technology has created hauling capability well recognized in the surface mining industry. The EH4000ACII continues to prove itself as an exceedingly capable and reliable solution to mine applications worldwide. AC Drive Proven Performance & Economic Hitachi engineered AC drives make your hauler a more valuable asset in your mining operation. Better performance, higher availability, and significant reductions in maintenance and operating costs - result in a lower cost per tonne and a higher return High-Powered Engine Strong, reliable power...

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Hitachi AC drive technology provides superior truck performance with higher top speeds, better gradeability and stronger retardation. Hitachi inverter modules provide high rigid truck controlability and efficiency. The Hitachi AC wheel motors do not have commutators and brushes, which improves truck performance by providing reduced maintenance costs, higher truck availability and higher travel speeds. These advantages result in more productivity and lower costs Hitachi AC drive systems also power electric train locomotives world wide. Full Retarding Capability Hitachi AC drive systems provide...

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The new HI-TECH ROPS/FOPS cab has been newly equipped with a Hitachi controller and a large centrally mounted, color Liquid Crystal Display (LCD) as used in Hitachi large sized excavators. Double wall construction of 11 gauge inner and outer steel panels produces a more structurally sound cab. A three- point rubber isolation-mount arrangement minimizes vibration to Superior Suspension The Hitachi trailing arm suspension system delivers excellent maneuverability, even at higher speeds. The trailing arm layout offers greater ease of servicing while improving truck performance compared to suspended...

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SPECIFICATIONS ENGINE BODY CAPACITIES Model Cummins QSKTA60-CE Type 4 Cycle Diesel w/ MCR fuel system Aspiration 1 stage Turbocharged & Low Temperature Aftercooled Emission Certification U.S. EPA Tier 2 Rated Power SAE J1995, gross 1 864 kW (2 500 HP) at 1 900 min-1 (rpm) Net 1 771 kW (2 370 HP) at 1 900 min-1 (rpm) Maximum Torque (SAE J1995) 9 839 N.m (1 004 kgf.m) at 1 500 min-1 (rpm) No. Cylinders 16 Bore & Stroke 159 x 190 mm Displacement 60 L Starting 24 Volt Electric Struck (SAE) Heap 3:1 Heap 2:1 (SAE) ELECTRICAL DRIVE HITACHI AC-Drive System AC Control Cabinet Rectifier Number of units...

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DIMENSIONS Unit: mm 50.5° 990 1 690 6 090 6 130 7 360 2 350 13 860 9 060 4 790 4 240 6 050 6 060 3 980 14 280 7 290 9 540 8 270 8 120 840 7 760 2 340 4 960 7 580 NOTES: Dimensions shown are for an empty machine with 46/90R57 tires. These specifications are subject to change without notice. Illustrations and photos show standard models, and may or may not include optional equipment, accessories, and all standard equipment with some differences in color and features. Before use, please read and understand the Operator’s Manual for proper operation. Hitachi Construction Machinery Co.,Ltd. www.hitachi-c-m.com...

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eh4000acii

eh4000acii

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