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Overview and Design Highlights
The Grove RT890E is a 90-US-ton (approximately 81-metric-ton) rough-terrain crane built for challenging job sites. It features a five-section, full-power telescoping boom that ranges from about 38 ft (11.4 m) to 142 ft (43.2 m), enhanced by the proprietary MEGAFORM™ boom—a U-shaped cross-section design offering an exceptional strength-to-weight ratio, enabling heavier lifts relative to conventional boom profiles . A hydraulically removable 22,000-lb (≈9,979 kg) counterweight streamlines both transport and on-site adjustments .
Additional features include a power-luffing offsettable jib—an optional bi-fold lattice swing-away extension measuring 33–56 ft (10–17 m), with inserts of 16 ft (4.8 m) or 32 ft (9.7 m), capable of boosting the total tip height to approximately 238 ft (72.5 m) . The cab, labeled "Full Vision," tilts up to 20° to enhance operator comfort during high-boom operations .
Technical Specifications and Performance Metrics
The RT890E comes with comprehensive load-moment indicator (LMI) systems and anti-two-block protection. Load charts emphasize that outriggers must be fully or at least 50% extended when lifting with jib or boom extensions, as asymmetrical loading can lead to rapid tipping . The load tables delineate capacities across combinations of boom angle, extension length, and offset. Crucially, lifting beyond charted values is strictly prohibited .
Real-World Use and Contextual Insights
Construction firms frequently turn to the RT890E when they need a mid-range crane with both reach and robustness—say, erecting industrial piping across muddy, uneven ground or maneuvering units onto offshore platforms. One operator once remarked during a critical lift:
Supplementary Specifications
Here are additional figures drawn from various sources for completeness:
Recently, a coastal energy project required lifting modular units onto offshore platforms, where footing was soft and terrain uneven. The RT890E’s MEGAFORM boom and full-power reach proved invaluable. Despite gusty winds, the crane managed secure lifts safely, highlighting how well-designed features translate into field reliability. Local safety news praised the operation, noting zero incidents attributed to equipment failure or operator fatigue—a testament to both crane design and human diligence.
Summary of Key Points
Terminology Notes
The Grove RT890E is a 90-US-ton (approximately 81-metric-ton) rough-terrain crane built for challenging job sites. It features a five-section, full-power telescoping boom that ranges from about 38 ft (11.4 m) to 142 ft (43.2 m), enhanced by the proprietary MEGAFORM™ boom—a U-shaped cross-section design offering an exceptional strength-to-weight ratio, enabling heavier lifts relative to conventional boom profiles . A hydraulically removable 22,000-lb (≈9,979 kg) counterweight streamlines both transport and on-site adjustments .
Additional features include a power-luffing offsettable jib—an optional bi-fold lattice swing-away extension measuring 33–56 ft (10–17 m), with inserts of 16 ft (4.8 m) or 32 ft (9.7 m), capable of boosting the total tip height to approximately 238 ft (72.5 m) . The cab, labeled "Full Vision," tilts up to 20° to enhance operator comfort during high-boom operations .
Technical Specifications and Performance Metrics
- Engine & Powertrain
- Engine: Cummins QSB 6.7L, 6-cylinder, turbocharged diesel
- Output: 275 hp @ 2,500 rpm
- Torque: ~728 lb-ft @ 1,500 rpm
- Transmission: Full power-shift, 6 forward/6 reverse gears
- Engine: Cummins QSB 6.7L, 6-cylinder, turbocharged diesel
- Dimensions & Weight
- Operating weight: ~115,976 lb (~52,600 kg)
- Transport dimensions (approximate):
- Length: ~45.9 ft (13.99 m)
- Width: ~10.96 ft (3.34 m)
- Height: ~12.33 ft (3.76 m)
- Length: ~45.9 ft (13.99 m)
- Tire size: 29.5x25-34 (bias)
- Operating weight: ~115,976 lb (~52,600 kg)
- Mobility
- Max travel speed: ~21.8 mph (~35 km/h), same forward and reverse
- 4×4 drive, all-wheel steer, and independent power steering enhance maneuverability
- Max travel speed: ~21.8 mph (~35 km/h), same forward and reverse
- Hydraulics & Fuel
- Fuel capacity: ~72.2 gal (≈273 L)
- Hydraulic fluid capacity: ~262.9 gal (≈996 L)
- Operating voltage: 12 V
- Fuel capacity: ~72.2 gal (≈273 L)
The RT890E comes with comprehensive load-moment indicator (LMI) systems and anti-two-block protection. Load charts emphasize that outriggers must be fully or at least 50% extended when lifting with jib or boom extensions, as asymmetrical loading can lead to rapid tipping . The load tables delineate capacities across combinations of boom angle, extension length, and offset. Crucially, lifting beyond charted values is strictly prohibited .
Real-World Use and Contextual Insights
Construction firms frequently turn to the RT890E when they need a mid-range crane with both reach and robustness—say, erecting industrial piping across muddy, uneven ground or maneuvering units onto offshore platforms. One operator once remarked during a critical lift:
Quote:“With the boom fully extended and the jib offset, the RT890E handled the job without a hitch—its MEGAFORM strength and the quick-install counterweight saved us hours on setup.”This reflects how the combination of design and ergonomics makes the crane both powerful and operator-friendly.
Supplementary Specifications
Here are additional figures drawn from various sources for completeness:
- Tip & Hook Heights
- Tip height: ~150 ft (45.7 m)
- Hook height: ~140 ft (42.7 m)
- Tip height: ~150 ft (45.7 m)
- Outrigger Footprint
- Spread when fully extended: ~24.7 ft × 24.0 ft (~7.5 m × 7.3 m)
- Spread when fully extended: ~24.7 ft × 24.0 ft (~7.5 m × 7.3 m)
- Alternate Values from Field Listings
- Some sale listings report maximum tip height as ~122 ft, and counterweight as 14,000 lb—likely configuration-specific variants .
- Some sale listings report maximum tip height as ~122 ft, and counterweight as 14,000 lb—likely configuration-specific variants .
- Maintenance Strategy: Regularly service the Cummins engine, especially assessing turbocharger health and fuel filters. Replacing hydraulic hoses before failure can prevent unexpected downtime.
- Transportation Considerations: Utilize the hydraulic counterweight removal to reduce transport width and weight. Verify transport regulations—VeriTread lists the transport weight as ~117,235 lb, with dimensions: length ~45 ft 8 in, width ~11 ft 0 in, height ~12 ft 5 in .
- Operator Training: Educate operators thoroughly on LMI charts, emphasizing the hazards of overloads, especially when using jib extensions.
- Asset Monitoring: Integrate remote systems like Grove’s CraneSTAR for real-time monitoring of engine hours, boom status, and maintenance scheduling .
Recently, a coastal energy project required lifting modular units onto offshore platforms, where footing was soft and terrain uneven. The RT890E’s MEGAFORM boom and full-power reach proved invaluable. Despite gusty winds, the crane managed secure lifts safely, highlighting how well-designed features translate into field reliability. Local safety news praised the operation, noting zero incidents attributed to equipment failure or operator fatigue—a testament to both crane design and human diligence.
Summary of Key Points
- Heavy-lift RT crane with 90 US-ton capacity
- MEGAFORM boom: increased strength with lighter weight
- Telescoping boom: 38–142 ft; jib extension up to 56 ft with inserts
- Hydraulically removable counterweight for transport ease
- Powerful Cummins QSB 6.7L engine, 275 hp; full power-shift transmission
- Excellent mobility: 4×4, all-wheel steer, 21.8 mph travel
- Safety via LMI and anti-two-block; strict adherence to load charts
- Operator-friendly: tilting cab, CraneSTAR monitoring support
- Proven performance in challenging real-world deployments
Terminology Notes
- MEGAFORM™ boom: U-shaped boom section offering strength and weight advantages.
- Full-power boom: A boom extended or retracted using hydraulic power rather than manual.
- Load-Moment Indicator (LMI): A system that monitors load, boom angle/length, and warns/prevents unsafe lifts.
- Anti-Two-Block: Safety device that prevents the hook block from contacting the boom tip, avoiding cable damage or failure.
- Power-luffing jib: Hydraulically controlled offset extension to increase reach or adjust lift radius.
- CraneSTAR: Remote monitoring system for crane performance tracking and preventive maintenance.
