Hitachi Construction Machinery Global

Hitachi's ETS (Electronic Total control System) can achieve maximum job efficiency by reducing fuel consumption and noise levels, while maximizing productivity through the optimization of engine-pump functions with excellent controllability increasingfunctions with excellent controllability increasing operator comfort.

Boom/arm/bucket

High-strength piston rods and tubes adopted. Cylinder cushion mechanisms are provided for boom, arm bucket and dump cylinders. Bucket cylinder of loading shovel is provided with protector.

All hydraulic circuits have high-quality hydraulic filters for protection against oil contamination and longer life of hydraulic components.

Remote-controlled joystick hydraulic servo system. Right lever is for boom and bucket control, left lever for swing and arm control. For loading shovel, 2 pedals provided for opening/closing the bottom dump bucket.

Remote-controlled hydraulic servo system. Independent drive at each track allows counter-rotation of tracks.

A deep, full-reinforced box section. Heavy-gauge steel plates used for ruggedness.

Maintenance accessibility is the major feature in the layout of deck machinery. Sidewalks provide easy access to engines, hydraulic and electrical components.

2 high-torque, axial-piston motors with planetary reduction gear bathed in oil. Swing circle is single-row, shear-type ball bearing with induction-hardened internal gear. Internal gear and pinion gear immersed in lubricant. Swing parking brake is spring-set, hydraulic-released disc type.

Steel construction with integrated, falling-object-protective structure meeting SAE FOPS. Independent, pressurized, 1 100 mm (3'7") wide, 1 900 mm(6'3") high, roomy 3.46 m³ (4.53 d³) cab with tinted-glass windows features all-round visibility. Spring-suspension-type, fully-adjustable reclining seat with armrests; movable with or without front and swing control levers by slide. Instrument and control panel is built in cab wall is in easy range of the operator. Powerful fresh air ventilation type air conditioner. Cool-and-hot box and rotatable blower louvers also serve as defrosters. Thus, rapid air-conditioning can be achieved for operator comfort. Fluid-filled elastic-mounting and sound-proofing structure to reduce noise level and vibration.

Tractor-type undercarriage. Bolt linkage for side frame assures durability. Heavy-duty track frame of all-welded, stress-relieved structure. Top-grade materials used for toughness. Lifetime-lubricated induction-hardened track rollers, idlers and sprockets with floating seals. Track shoes of cast steel with double grousers. Double strut reinforced track links with track guards. Hydraulic (grease) track adjusters with shock absorbing recoil springs.

Double grouser track shoes of induction-hardened cast steel.

Each track driven by a high-torque, axial piston motor through planetary reduction gears, allowing counter rotation of the tracks. Easily replaceable sprockets. Parking brake of spring-set, hydraulic-released disc type.

EX1200-5D: Equipped with 9.1 m (29'10") boom, 3.4 m (11'2") arm, and 5.0 m³ (6.54 d³; PCSA heaped) bucket

EX1200-5D BE-front: Equipped with 7.55 m (24'9") BE-boom, 3.4 m (11'2") BE-arm, and 6.5 m³ (8.50 d³; PCSA heaped) bucket

Equipped with 6.5 m³ (8.5 d³;PCSA heaped) bottom dump bucket

Boom and arm are all-welded, low-stress, full-box section design. Bucket of all-welded high-strength steel structure, side clearance adjust mechanism is provided on the bucket joint brackets.

Boom and arm are all-welded, low-stress, high-tensile strength steel full-box section design. Efficient, automatic level crowding achieved by one-lever control because parallel link mechanism keeps the bucket digging angle constant, and level cylinder circuit maintains the bucket height constant (Auto-Leveling Crowd Mechanism).