Hitachi KH230-3 crawler crane, 1990 model

Hitachi KH230-3 crawler crane (1990 model), 60-ton capacity, 34 m boom – a dedicated lifting machine featuring a powerful hydraulic system and durable lattice structure, suitable for a wide range of construction terrains.

When selecting lifting equipment for key projects such as overpasses, high-rise buildings, or river ports, prioritizing cranes with stable lifting capacity, robust structure, and reasonable investment costs is essential. Among many available options, the Hitachi KH230-3 crawler crane (1990 model) remains highly regarded thanks to its long-lasting durability, flexible operation, and powerful hydraulic system.

This model is particularly suitable for contractors who require a 60-ton crane for projects on soft ground, with high demands for load-bearing capacity and continuous multi-shift operation. In addition, the Hitachi KH230-3 features an easy-to-assemble and disassemble configuration, making transportation and maintenance more convenient.

In this article, Hanoi Vietnam will provide an in-depth analysis of the technical aspects, real-world performance, operating costs, and comparisons with other crane models to help engineers and investors make the right decision.

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Main boom design and reliable lifting capacity

The Hitachi KH230-3 is equipped with a high-strength steel lattice boom measuring 1,400 × 1,400 mm, providing excellent stability when handling heavy loads. The base boom length is 13 m and can be extended with 3 m, 6 m, and 9 m sections, allowing a maximum boom length of 34 m.

Rated lifting capacities are calculated with multiple safety margins:

• Maximum lifting capacity of 60 tons at a 3.7 m radius.
• When using an auxiliary jib, lifting capacity varies depending on jib length and offset angle.
• Lifting capacities are always calculated after deducting the weight of accessories such as hooks, buckets, or lifting frames.

This allows engineers to accurately calculate and select suitable attachments for each lifting plan. Notably, the pin-connected boom sections enable quick on-site assembly, saving valuable construction time.

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Auxiliary boom and jib: Flexible support for lighter loads

One of the key advantages of the Hitachi KH230-3 crawler crane is its ability to install an auxiliary jib ranging from 9 m to 18 m, depending on project requirements. Technical specifications include:

• Jib lengths: 9.0 m, 13.5 m, 18.0 m.
• Jib offset angles: 10° or 30°.
• Maximum lifting capacity:
  • At 10°: 6,500 kg for all jib lengths.
  • At 30°: up to 6,500 kg with a 9 m jib, decreasing to 4,200 kg with an 18 m jib.

However, it should be noted that jib lifting capacity must not exceed the main hook capacity at the same radius, and the weight of the jib itself must be deducted. This is a critical parameter when lifting lighter loads at height or in confined spaces.

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Robust undercarriage and mobility on soft ground

As a crawler crane, the Hitachi KH230-3 features a strong undercarriage:

• Welded crawler frame that can be narrowed for transport and expanded using hydraulically controlled cylinders.
• Hardened alloy steel tracks with an anti-derailment mechanism for enhanced safety.
• Track links per side: 61 links, with a track width of up to 760 mm, ensuring even load distribution on soft ground.

Roller configuration:

• 3 upper rollers per side.
• 6 lower rollers per side.

The crawler drive system uses hydraulic motors combined with reduction gearboxes, along with spring-applied, hydraulically released brakes, ensuring stable movement even on slippery or muddy terrain.

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Powerful hydraulic system: Dual pumps and independent winch motors

The hydraulic system of the KH230-3 is highly regarded for its stable performance and optimized design:

• Pumps 1 & 2: Variable displacement piston pumps, 300 bar, 200 L/min.
• Pump 3: Piston pump, 210 bar, 134 L/min.
• Pump 4: Gear pump, 45 bar, 32 L/min.

Main motors use swash-plate piston designs:

• Winch motors: Equipped with load-holding valves to ensure safe lifting and lowering, preventing load drift.
• Slew and travel motors: Fitted with multi-disc brakes for fast, smooth response.

Safety relief valve settings:

Component	Maximum pressure (bar)
Winch	305
Boom	265
Travel	280
Pilot control	45

This configuration allows the machine to operate reliably in heavy-duty environments and sustain continuous multi-shift operations.

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Simple yet effective control system

A notable feature of this 1990 model is its traditional mechanical control system, which is easy to operate and maintain:

• Separate control levers for main winch, auxiliary winch, slewing, and travel.
• Dual throttle control (foot and hand) for flexible speed adjustment.
• Multi-direction adjustable operator seat, suitable for long working hours.

This design is particularly well suited to Vietnamese construction sites, where many operators are familiar with older-generation cranes featuring straightforward, sensor-free operation.

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Large counterweight and solid overall structure

With a counterweight of up to 22,800 kg, the crane achieves excellent balance when lifting heavy loads. The honeycomb lattice steel boom design distributes forces evenly, reducing the risk of deformation or structural failure during off-center or prolonged heavy lifting.

In addition, the entire machine is built from high-strength steel, increasing structural lifespan and reducing metal fatigue after decades of operation.

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Main configuration summary

Item	Main specification
Model	Hitachi KH230-3
Year of manufacture	1990
Rated lifting capacity	60 tons @ 3.7 m
Main boom length	Up to 34 m
Auxiliary jib	9.0 / 13.5 / 18.0 m
Counterweight	22,800 kg
Winch motors	Inclined piston type with load-holding valves
Main pump type	Variable displacement piston, 300 bar
Track width	760 mm
Control system	Mechanical, hand levers + foot throttle
Boom connection	Pin-connected

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Comparison with other crawler cranes in the same class

Compared with models such as Kobelco 7055-1, Sumitomo LS248, or Link-Belt LS-238, the KH230-3 offers:

• Larger boom cross-section (1,400 mm) for superior load resistance.
• Stable lifting capacity across various working radii, ideal for steel erection.
• Hydraulically expandable crawler frame, allowing more flexible transportation.

However, as a 1990 model, the KH230-3 lacks advanced electronic features, making it less suitable for projects requiring highly automated or digitally synchronized control systems.

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Notes when purchasing or renting a Hitachi KH230-3 crawler crane

When choosing this model, contractors should:

• Check the hydraulic system condition, especially load-holding valves, winch motors, and crawler expansion cylinders.
• Inspect track link and sprocket wear, which directly affects mobility on soft ground.
• Select the appropriate jib length to match working radius and avoid exceeding safe limits.

It is also advisable to work with suppliers that offer readily available spare parts and maintenance services to minimize downtime during operation.

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Conclusion

• The Hitachi KH230-3 crawler crane is a classic choice for projects requiring a 60-ton lifting capacity, with proven durability and stability over decades.
• Its large boom structure, powerful hydraulic system, and expandable crawler frame make it suitable for a wide range of construction conditions.
• While not electronically advanced, the KH230-3 remains extremely reliable, easy to maintain, and well suited to technical teams in Vietnam.

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If you are interested in renting or purchasing a Hitachi KH230-3, please contact:

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• 📞 Call now: Ms. Thùy Linh – 0899 601 755
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