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New National Crane 851D Boom Truck for Sale With a capacity of 23 USt the 800D offers four basic boom and jib combinations. Boom lengths include 51 ft. 90 ft. and 100 ft. The 25 ft.- 44 ft. jib can be used with the 90 ft. and 100 ft. boom lengths. The 800D is available in three configurations: standard behind cab mount rear mount and tractor mount. Boom tip: The speedy-reeve boom tip and sheave blocks simplify rigging changes. Load line wedge socket removal is not required for reeving of multi-part line options. Four-section boom: At 30,48 m (100 ft) the 800D boom is the longest in its size range. The longer boom allows the operator to perform more lifts without the use of a jib, reducing setup time and improving efficiency. Overload protection: All National Crane boom trucks are equipped with overload protection. A Rated Capacity Limiter (RCL) is required on all machines equipped with jibs or personnel baskets. Color graphical RCL system: Easy to setup and operate color graphical RCL system with enhanced userability and jog dial menu selection. It also includes enhanced troubleshooting features for ease in serviceability, work area definition system and on-board outrigger monitor system. |
| Body | |
|---|---|
| Chassis | Torsion resistant, high-strength steel sub-frame. Crane frame and sub-frame attached using threaded mounting bolts and drilled and bolted clamp plates for secure attachment to the truck chassis. Rear outriggers attached using bolts to truck frame and subframe to ensure a secure attachment. Rear bumper underride protection standard on factory mounted cranes. |
| Cab | Dual-station ASME B30.5 compliant proportional crane controls with mechanical direct-to-valve control of hoist, lift, telescope and swing functions on both the driver and passenger sides of the crane. Mechanical direct-to-valve controls of all outrigger functions on both the driver and passenger sides of the crane. Burst of speed hoist switch located at each hoist control lever. Sealed electric switches for control of engine start/stop and horn. Throttle pedal located at each side. Load chart(s) located at each station. |
| Frame | Section Modulus (SM) Under Crane with 110,000 psi (758 MPa): 15.9 ci (260.6 cm³) Section Modulus (SM) Over Rear Stabilizers with 110,000 psi (758 MPa): 13 ci (213 cm³) |
| Slew | One (1) Planetary slewing gear with a low speed high torque motor. Integrated holding valves and spring applied, pressure released brake release circuit; 375°, non-continuous rotation; manually adjustable swing speed needle valve. |
| Dimensions | |
|---|---|
| Wheelbase | 234 in. (594 cm) |
| Gross Axle Wt Rating (GAWR) | Front: 16,000 lbs. Rear: 34,000 lbs.; 40,000 lbs. (Rear) |
| Max Tip Height | 152' |
| Hydraulic | |
|---|---|
| Hydraulic System | Open-center hydraulics system allowing for multifunction operation of all crane functions. One (1) three section gear pump for all functions and optimized system performance. Shaft input of 2400 RPM generating: Section #1 (Boom/Telescope/Outriggers): 18 gpm (68 lpm) max flow Section #2 (Hoist): 34 gpm (128.7 lpm) max flow Section #3 (Swing): 10 gpm (37.9 lpm) max flow 65 gallon (246 L) hydraulic reservoir with SAE o-ring connections and integrated suction shut-off ball valve for easy maintenance and SAE o-ring hydraulic fittings and hoses. |
| Operational | |
|---|---|
| Outriggers | Outrigger monitoring system for beam extension standard. Inverted cylinder rods for outrigger jack cylinders to best protection of chromed rod |
| Capacity | 23 T (20.87 t) |
| Boom | Proportional extension via multi-stage hydraulic cylinder and cable operation; four-plate, high-strength steel construction; two-sheave, quick reeve boom nose and Easy-glide wear pads. |
| Winch | Planetary |
| Boom | |
|---|---|
| Boom Extensions | 21-51 ft. (6.4-15.5 m) |
| Boom Type | 3-section |
| Boom Length | 51 ft. (15.5 m) |
| Max Tip Height-Boom | 109' |
| Lift Speed | 25-147 fpm (8-45 m/min.) |
| Boom Elevation | One (1) double-acting, hydraulic cylinder with holding valve with a range of –10⁰ to +80⁰ |
| Battery | |
|---|---|
| Electrical System | Automotive grade, fully wire harnessed 12VDC electrical system using sealed connectors |
| Measurements | |
|---|---|
| Weight | 13,700 lbs. (6,214 kg) dry 14,215 lbs. (6,448 kg) with oil |
| Turning Radius | 180° |
*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.
