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The NBT50L Series is the next evolution of the proven NBT50/55 series. This series features a newly designed superstructure and boom that will have you reaching new heights with the same operator confidence due to the sturdy and rugged National Crane design. The series offers the long 46,0 m (151 ft) five-section full power boom in both the 50 USt and 55 USt capacities. Also introducing for the first time on a National Crane boom truck: an optional 11 m (36 ft) fixed lattice jib which is offsettable offering a total of three (3) offset positions. The NBT50L Series also offers the NTC Value Package bringing over popular features from the NTC55 including the 75% outrigger span for applications where an additional outrigger position is critical. This package also adds technology upgrades to a boom truck such as an integrated wireless windspeed indicator and a two-camera system for monitoring the hoist and rear/passenger side of the machine for enhanced jobsite awareness and safety.
Five-section boom: The NBT50L Series is equipped with a 46 m (151 ft) boom. An optional 11 m (36 ft) fixed length offsettable jib and a 7,9 m to 13,7 m (26 ft to 45 ft) two-section offsettable manual extension is available.
Extreme versatility and strength: The NBT50L Series offers three product configurations based on the successful NBT50 Series including both 45,4 t (50 USt) and 49,9 t (55 USt) capacities.
Operator-focused design: The NBT50L Series is designed specifically with the operator in mind, with up to 20˚ cab tilt, a graphical RCL with integrated control system, optional side-view and hoist-view cameras, optional dual axis electronic joysticks and lighter polymeric outrigger floats for easy setup.
NTC Performance Package: National Crane truck crane features the easy roadability of a boom truck. The NTC Performance Package provides key features such as four-position outriggers (100%, 75%, 50% and fully retracted charts), integrated two-camera system for hoist-view and rearviews, and built-in wireless windspeed indicator. NTC Performance Package machines come with special NTC50L and NTC55L model designations.
|Chassis||Torsion-resistant, high-strength steel sub frame attached using high-strength steel mounting brackets that are welded to the sub-frame and bolted to the truck chassis using Huck® bolts to ensure a secure and maintenance-free connection. Rear bumper under ride protection standard. Fixed boom rest mounted to front outrigger box and fabricated from structural steel.|
|Cab||Cab structure: rigid galvanealed steel structure, well insulated, offering optimum operator visibility and comfort. Equipped with tilting cab feature from horizontal to +20°, tinted safety glass, fixed front window with windshield wiper and washer, sliding skylight window with windshield wiper, sliding left side glass door, sliding right side window for ventilation w/ safety grille, tilting rear window for ventilation, four way adjustable, cushioned seat and armrests with seat belt, diesel-fired warm-water heater with air ducts at operators feet, left side of cab and front dash — standard, hydraulic-powered air conditioner — standard, circulation fan, bubble level, adjustable sun visor, dome light, cup holder, fire extinguisher, load chart binder with tear-proof paper load charts and operator manual.
Armrest control functions are arranged per ASME B30.5: Two single axis electric joystick controllers for swing, boom telescope, main hoist, auxiliary hoist (optional), boom lift, warning horn button, swing park brake switch, hoist rotation indicator, tilt cab up/down, main hoist high/low speed switch, and aux hoist high/low speed switch (optional).
Outrigger controls: front console mounted electronic keypad allowing the operator to activate all horizontal beams and vertical jacks. Pre-selection capabilities to easily activate more than one function for ease of setup.
Foot controls: engine throttle (electronic), dynamic swing brake (electronic), boom telescope (electronic, if equipped with aux hoist option).
Front console controls and indicators for rated capacity limiter display, outriggers, engine ignition key, emergency stop switch, and RCL override keyswitch (momentary). 12VDC power outlet.
Overhead console controls and indicators for heater, A/C and fan speed, windshield wiper and washer, skylight wiper, cab mounted work lights, crane function power, radio remote power.
|Slew||Continuous 360° rotation using (1) low speed, high torque motor with a manually adjustable swing adjustment valve integrated to the hydraulic motor control manifold mounted to a planetary reduction gear. A proportional electronic brake pedal located in the operator cab allows for the dynamic application of the multi-disk swing brake circuit. A separate spring-applied, hydraulic-released brake for disabling rotation can be activated from the left-hand seat armrest. Free-swing functionality is disabled when using the optional crane radio remote control. Maximum rotation speed of 2 RPM.|
|Gross Axle Wt Rating (GAWR)||Front: 20,000 lbs.
Rear: 62,000 lbs.
|Max Tip Height||202’|
|Hydraulic System||Efficient closed-center, load sense hydraulics system featuring load-sharing technology allowing for smooth multifunction operation of all crane functions. One (1) SAE-C mounted, 130cc axial piston pump for all functions and optimized system performance. Shaft input of 2200 RPM generating 286 lpm (76 gpm) max flow at 320 bar (4600 psi) max operating pressure. 351 L (100 gal) hydraulic reservoir with SAE o-ring connections and integrated butterfly shut-off valve for easy maintenance. SAE o-ring hydraulic fittings and hoses throughout. Boom lift, boom telescope, main and aux hoist(s) and vertical outrigger jacks are all equipped with counterbalance valves for controlled movement and load holding.|
|Outriggers||Each jack equipped with 20” polymeric outrigger float standard|
|Boom||Includes proportional extension via multi-stage hydraulic cylinder and cable operation, four-plate, high-strength steel construction, three-sheave, quick-reeve boom nose and Easy-Glide wear pads.|
|Boom Length||151 ft.|
|Max Tip Height-Boom||202'|
|Boom Elevation||One (1) double-acting, hydraulic cylinder with integral holding valve with integral pressure transducers provides elevation from -8° to +80°.|
|Electrical System||Automotive grade, fully wire harnessed 12VDC electrical system using state-of-the-art sealed connectors and control modules. Dual-tone backup and outrigger motion alarm located at rear of machine. LED marker and triple ID lights.|
|Weight||48,297-49,800 lbs. w/fluids|
*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.