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382 kw / 512 hp (ISO 14396)
Net Power
47,060 – 47,680 kg
Operating Weight
6.0 – 6.8 m3
Bucket ISO Heaped
33,220 kg
Tipping Load, Full Turn

Hitachi ZW550-6

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  • Specifications
  • Net Power: 382 kw / 512 hp (ISO 14396)
  • Operating Weight: 47,060 – 47,680 kg
  • Bucket ISO Heaped: 6.0 – 6.8 m3
  • Tipping Load, Full Turn: 33,220 kg
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  • Specifications
  • Net Power: 382 kw / 512 hp (ISO 14396)
  • Operating Weight: 47,060 – 47,680 kg
  • Bucket ISO Heaped: 6.0 – 6.8 m3
  • Tipping Load, Full Turn: 33,220 kg

Enquiry Form

Manufactured using market‐leading Hitachi technology and high quality, durable components, the ZW550‐6 offers excellent performance in the most challenging working environments of mines and quarries, without compromising on efficiency.  With a powerful digging force and substantial lifting and loading capacity, it is highly productive, while also being easy to manoeuvre, smooth to operate and user friendly. The 360° panoramic view from the spacious cab, in combination with the rear‐view camera and unique two‐piece counterweight, contributes to excellent all‐round visibility on the jobsite.


Isuzu 6WG1
4-cycle water-cooled, 6 cylinder direct injection diesel engine
Turbocharger and intercooled
DOC and SCR system
Rated power
ISO 14396

382 kW / 512 hp at 1,800 min-1 (rpm)
Maximum torque
2,200 Nm at 1,450 min-1 (rpm)
Piston displacement
15.68 L
Bore and stroke
147 mm x 154 mm
2 x 12 V
Air Cleaner
Two element dry type with restriction indicator
Complies with EU Stage IV and US EPA Tier 4 Final
Torque converter, planetary gear type powershift with computer-controlled automatic shift and manual shift features included
Torque converter
Three element, single stage, single phase with lock up clutch
Main Clutch
Wet hydraulic, multi-disk type
Cooling method
Forced circulation type
Travel speed*
7.0 / 7.8 km/h (7.1 /7.8 km/h)
12.7 / 14.1 km/h (12.9 / 14.1 km/h)
20.7 / 22.6 km/h (20.7 / 22.6 km/h)
35.0 km/h (35.0 km/h)

* With 35/65 R33 (L5) tires
( ): Data at Power Mode
Tyres, Brakes & Steering
35/65 R33 (L5)
Service Brakes:

Parking Brakes:
Outboard mounted fully hydraulic 4 wheel wet disc brake. Front & rear independent brake circuit

Spring applied, hydraulically released, located in front axle driveline
Steering system
Steering angle:
No. x Bore x stroke:

Articulated frame steering
Each direction 37 degrees ; total 74 degrees
Double-acting piston type
2 x 100mm x 720mm
Hydraulic System
Arm controls
Four position valve ; raise, hold, lower, float
Bucket controls
Three position valve ; roll back, hold, dump
Main Pump:
Maximum Oil Flow
Maximum pressure

380 L/min at 1,800 min-1
31.4 MPa
No. x Bore x Stroke
Double acting
Arm : 2 x 190mm x 1,132mm
Bucket : 2 x 160mm x 767mm
Hydraulic cycle times:
Lift arm raise
Lift arm lower
Bucket dump

8.5 s
4.5 s
2.3 s
15.3 s
Service Capacities
Fuel tank
648 L
Engine coolant
82 L
Engine oil
57 L
Torque converter & transmission
90 L
Front axle differential & wheel hubs
180 L
Rear axle differential & wheel hubs
180 L
Hydraulic oil tank
300 L
DEF/Adblue tank
57 L

Designed with you in mind...

  • New Stage IV-compliant engine contains a high-volume cooled exhaust gas recirculation (EGR) system, a common rail-type fuel injection system and a diesel oxidation catalyst (DOC). The non-use of DPF further reduces fuel consumption and maintenance costs.
  • Lock-up transmission available as standard further reduces fuel consumption on loading and carrying applications.
  • Traction force has been increased by 30% compared to the previous model, resulting on efficient loading operation.
  • Quick power switch increases engine output when more power in required instantly or when going up hill.
  • Full box rear is a robust structure for heavy applications.
  • Class leading build quality.
  • Front lift arm has a thicker cross tube to provide more strength against torsion.
  • A low mount lift arm cylinder prevents twisting of the front frame.
  • The speed of the lift arm has been improved and it lowers smoothly for increased productivity. It’s easy to control using the auto leveller and anti-drift system.
  • A selective catalytic reduction (SCR) system injects urea into exhaust gas to reduce nitrogen oxide from emissions. This cutting-edge technology not only helps the environment, but also complies with EU Stage IV emission regulations.
  • Low-noise engine results in a quieter performance, making it suitable for working in urban areas.
  • Optional auto shutdown feature helps to prevent fuel wastage, as well as reduce noise levels, exhaust emissions and CO2 level.
  • Optional belly guard protects the machine’s powertrain and driveshaft from potential damage caused by materials on the ground.
  • High quality radiators improve resistance to corrosion and enhance the overall durability.
  • Newly designed rear grill prevents material for a job site entering the radiator compartment.
  • Reversible cooling fan that can be activated manually every 30 minutes, ensures that the radiator stays clean during operation.
  • Remote monitoring Global e-Service to monitor machine remotely via Owner’s Site (24/7 online access) and ConSite (an automatic monthly report). These help to maximise efficiency, minimise downtime and improve overall performance.
  • More than 90% of parts are recyclable.
  • Full manufacturers warranty.
  • Good residual values, with a worldwide after sales and service network.
  • The spacious cab creates with air suspension seat provides a comfortable working environment, while the 360° panoramic view helps to increase safety and productivity.
  • User-friendly operation and wide view mirrors for increased visibility.
  • A rear-view camera contributes to excellent all-round visibility and safety on the job site.
  • Sound insulation significantly reduces noise levels and provides a quieter working environment.
  • To ensure a smooth drive on all kinds of terrain, the ride control feature prevents unnecessary pitching via the movement of the lift arm cylinders.
  • Optional joystick steering system enables high levels of productivity with effortless steering, and incorporates a number of useful functions.
  • Different lever control available to suit operator preference.
  • A multifunctional LCD colour monitor displaying useful information at a glance, such as fuel and urea levels, oil temperature and power mode. It also includes the display for the easy-to-use rear-view camera, which enhances visibility for a safe operation.
  • Excellent rear view due to the curved engine hood.
  • Several storage compartments within the cab.
  • The engine air filter is located to the rear of the engine compartment, providing easier access at ground level for maintenance, with the urea tank also positioned for convenience.
  • Easy to open wide engine covers and easily accessed battery compartment.
  • Battery disconnect switch included as standard. Helping to avoid electrical accidents and retain battery power during long-term storage.
  • Auto reverse radiator to reduce build-up of debris in the cooling system.

Comprehensive Support as Standard

Support Chain

At Hitachi we aim to help keep your investment operating safely and in peak performance at all times, to minimise downtime and protect the high residual value associated with the Hitachi product. The services, facilities and products available through the Hitachi Support Chain will help to achieve this, keeping your machine working at its maximum potential.

Fleet management

Hitachi utilizes sophisticated on-board monitoring technology to collect vital, real time data for efficient operation of your machine, including fuel efficiency, CO2 emissions and idling time.

And now with CONSITE the revolutionary new complimentary customer support tool from Hitachi, a consolidated report can be delivered straight to your inbox.

Peace of Mind

When purchasing a technologically advanced Hitachi product, you can buy safe in the knowledge that your purchase can be backed by an optional unique service and extended warranty program – SOLAS:

  • ervice by Hitachi trained engineers
  • nly genuine and approved parts
  • ife of contract annual inspections
  • ll-round cover
  • econd-hand value enhancement with full dealer service history

When purchasing machinery and equipment for construction projects, it always pays to have a solid financial foundation. Whatever your needs – new or used equipment, a single unit or an entire fleet – you can find flexible finance solutions from Hitachi Capital that will help you to meet your business needs.

Ready to Help

Talk to us!  If you have a question or would like to make an enquiry, please call us on 0191 430 8400 or use the contact form and we will call you back within 24hrs (or first thing Monday if it’s a weekend).

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Hitachi Construction Machinery (UK)

Copyright © 2021 Hitachi Construction Machinery (UK) Limited, Monkton Business Park North, Hebburn, Tyne and Wear NE31 2JZ. Tel: (0191) 430 8400