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Introduction to the Kobelco RK250-6 Crane
The Kobelco RK250-6 is a robust rough terrain crane engineered for demanding construction and heavy lifting applications. It is also referred to as the Panther 250 in some markets. Manufactured in Japan, this crane combines mobility, lifting power, and versatile boom configurations, making it suitable for challenging job sites where both reach and capacity are critical.
Technical Specifications and Key Features
The RK250-6 excels in construction sites requiring quick positioning and efficient heavy lifts in off-road or rough terrain conditions. Its powerful engine and hydraulic system support extended operations with high load handling capabilities. Operators benefit from the Power Tilt Jib enhancing lifting flexibility, allowing the crane to work effectively in confined or restricted spaces.
The H-type outriggers ensure the machine remains stable during various load conditions, enabling safe lifts and minimizing ground pressure impacts. Due to its design and specifications, the RK250-6 is well-suited for infrastructure projects, industrial facilities, and material handling applications where versatility and reliability are paramount.
Maintenance and Longevity Considerations
Routine maintenance for the Kobelco RK250-6 should prioritize engine care, hydraulic systems integrity, and structural inspections:
Terminology Explained
A construction company working on a multi-story building site found the Kobelco RK250-6 invaluable for its combination of reach and load capacity. The operator appreciated the Power Tilt Jib, which allowed precise positioning of structural components despite limited onsite space. The crane's maneuverability reduced setup time compared to larger crawler cranes, speeding project milestones. Maintenance crews reported that regular inspections and using high-quality hydraulic fluids kept the crane operating smoothly even under continuous heavy use.
Suggestions for Operators and Owners
The Kobelco RK250-6 rough terrain crane stands as a dependable, versatile machine tailored for medium-heavy lifting requirements in challenging environments. Its potent engine, long-reach boom, and flexible jib make it a valuable asset on various construction and industrial sites. Proper maintenance, skilled operation, and utilization of its advanced features ensure the crane delivers reliable, efficient, and safe performance for years.
This crane exemplifies robust Japanese engineering optimized for versatility and durability in rough terrain crane applications, providing operators and contractors effective solutions to demanding lifting challenges.
The Kobelco RK250-6 is a robust rough terrain crane engineered for demanding construction and heavy lifting applications. It is also referred to as the Panther 250 in some markets. Manufactured in Japan, this crane combines mobility, lifting power, and versatile boom configurations, making it suitable for challenging job sites where both reach and capacity are critical.
Technical Specifications and Key Features
- Crane Type: Rough Terrain Crane with a two-axle chassis.
- Rated Capacity: 25 metric tons (approximately 55,000 lbs), ideal for medium to heavy lifting tasks.
- Boom Dimensions: Main boom length reaches approximately 30.6 meters (about 100.4 feet), enabling significant vertical and horizontal reach.
- Jib Options: Equipped with a Power Tilt Jib extending from 7.5 to 12 meters (approximately 24.6 to 39.4 feet), enhancing flexibility for various rigging and lifting angles.
- Outriggers: H-type outriggers provide sturdy support and stability during lifting operations.
- Engine: Powered by a Mitsubishi 6D16TUA diesel engine delivering around 211.9 horsepower at 2800 rpm, offering reliable power and responsiveness.
- Weight and Dimensions: Approximately 25 tons operating weight, with dimensions that facilitate maneuverability on rough terrain.
- Drive and Mobility: The crane features a 2-axle rugged chassis suited to off-road conditions, enabling travel speeds near 31 mph (50 km/h).
- Cab Features: An all-weather operator cab designed for operator comfort and clear visibility.
- Hydraulic System: Advanced hydraulic controls ensure precise boom, jib, and hoist operations with smooth motion and power delivery.
- Additional Equipment: Equipped with a 25-ton block and ball hook system for heavy lifts.
The RK250-6 excels in construction sites requiring quick positioning and efficient heavy lifts in off-road or rough terrain conditions. Its powerful engine and hydraulic system support extended operations with high load handling capabilities. Operators benefit from the Power Tilt Jib enhancing lifting flexibility, allowing the crane to work effectively in confined or restricted spaces.
The H-type outriggers ensure the machine remains stable during various load conditions, enabling safe lifts and minimizing ground pressure impacts. Due to its design and specifications, the RK250-6 is well-suited for infrastructure projects, industrial facilities, and material handling applications where versatility and reliability are paramount.
Maintenance and Longevity Considerations
Routine maintenance for the Kobelco RK250-6 should prioritize engine care, hydraulic systems integrity, and structural inspections:
- Regular engine oil and filter changes extend pump and engine longevity.
- Hydraulic fluid quality and leak inspections prevent system downtime.
- Boom and jib sections should be routinely inspected for cracks or wear.
- Outrigger mechanisms require lubrication and functional checks.
- Track and tire conditions must be monitored for wear to sustain mobility and safety.
Terminology Explained
- Rough Terrain Crane: A crane designed specifically to operate on rough or uneven ground, featuring large tires and a robust chassis for off-road mobility.
- Power Tilt Jib: An auxiliary boom extension that can be hydraulically tilted to adjust angle and reach, supplementing the main boom's capabilities.
- Outriggers: Extendable supports used to stabilize cranes during lifting operations.
- Block and Ball: The hook assembly used in cranes to attach loads, consisting of pulley blocks and a load hook.
- Metric Ton: A unit of weight equal to 1,000 kilograms or approximately 2,204.62 pounds.
A construction company working on a multi-story building site found the Kobelco RK250-6 invaluable for its combination of reach and load capacity. The operator appreciated the Power Tilt Jib, which allowed precise positioning of structural components despite limited onsite space. The crane's maneuverability reduced setup time compared to larger crawler cranes, speeding project milestones. Maintenance crews reported that regular inspections and using high-quality hydraulic fluids kept the crane operating smoothly even under continuous heavy use.
Suggestions for Operators and Owners
- Ensure operators are trained to leverage the Power Tilt Jib for optimal load positioning in tight environments.
- Conduct daily pre-operation inspections focusing on hydraulic lines, boom sections, and outriggers.
- Use genuine manufacturer parts for replacements to maintain performance and safety.
- Implement a preventive maintenance schedule integrating engine checks, fluid replacements, and structural inspections.
- Monitor operating hours and plan component overhauls proactively, especially for hydraulic and engine systems.
- Precise hydraulic controls reduce load sway, improving lift safety.
- Operator cab design includes ergonomic controls and environmental protection.
- Continuous 360-degree rotation swing system allows efficient load handling without relocation of the base machine.
- The crane’s design incorporates redundancy and fail-safes in braking and hoisting systems to prevent operational accidents.
The Kobelco RK250-6 rough terrain crane stands as a dependable, versatile machine tailored for medium-heavy lifting requirements in challenging environments. Its potent engine, long-reach boom, and flexible jib make it a valuable asset on various construction and industrial sites. Proper maintenance, skilled operation, and utilization of its advanced features ensure the crane delivers reliable, efficient, and safe performance for years.
This crane exemplifies robust Japanese engineering optimized for versatility and durability in rough terrain crane applications, providing operators and contractors effective solutions to demanding lifting challenges.
