- Easy maintenances
- Operating performance
- Working adaptability
- Power System
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Easy maintenances
● Structural parts have stable quality and excellent performance.
● The wire harness branches through seamless bellows and splitters, providing high level of protection.
● Using world-renowned brand electrical and hydraulic parts, the quality is stable and reliable.
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Operating performance
● The control of the working device consists of luffing control, lifting control and counterweight control. The hydraulic reversing valve is controlled by a pressure-reducing pilot control valve, which is simple and labor-saving in control, with good fine-tuning performance, and is easy to install on the body.
● There is one joystick for the control of hook and boom, and another one for the counterweight control, which can be operated conveniently and quickly under various working conditions, and ensure the user’s precision requirements with high efficiency.
● The hydraulic motors of the hook and boom winches offer high volumetric efficiency, and the balancing valve eliminates secondary skidding of the winch and shaking of the empty hook. Moreover, the clutch in the hook winch enables free lowering of the hook.
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Working adaptability
● Chassis has a good stability, low fuel consumption and cost-saving.
● The working range of the boom is wide, and the lifting and lowering speed of the hook is fast.
● Large bearing capacity, heavy lifting capacity and high work efficiency.
● The hook, boom, and counterweight can choose speed freely and realize combine motions.
● Both the hook and the jib winch use three-stage planetary gears for deceleration and torque increase, with high safety factor and high mechanical efficiency.
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Power System
● The Cummins engine adopts high-efficiency fuel injection pump, which has the characteristics of excellent performance, stable quality, strong component versatility, and low maintenance cost.
| Product | SP45Y |
| Performance parameters | |
| Operating weight (Kg) | 34000 |
| Maximum lifting capacity（T) | 45 |
| Rated power of engine（kw/hp） | 180Kw |
| Minimum turning radius (mm) | 3200mm |
| Ground pressure (Mpa) | 0.085 |
| Engine | |
| Engine model | Cummins NT855-C280S10 |
| Number of cylinders× cylinder diameter× stroke（mm×mm） | 6-139.7×152.4 |
| Rated power/rated speed (kw/rpm) | 180/2000 |
| Maximum torque (N.m/r/min) | 1085/1300 |
| Overall dimensions of machine | |
| Length (mm) | 4855 |
| Width (mm) | 3690 |
| Height (mm) | 2700 |
| Driving performance | |
| Forward gear 1/Reverse gear 1 (km/h) | 0-3.8/0-4.9 |
| Forward gear 2/Reverse gear 2 (km/h) | 0-6.8/0-8.5 |
| Forward gear 3/Reverse gear 3 (km/h) | 0-11.8/0-14.3 |
| Traveling system | |
| Hydraulic torque converter | Three-element single-stage and single phase |
| Transmission | Planetary gear, multi-plate clutch, and hydraulic + forced lubrication type |
| Main drive | Spiral bevel gear, one-stage deceleration and splash lubrication |
| Steering clutch | Wet type, multi-plate spring applied, hydraulically released, and manually-hydraulically operated |
| Steering brake | Wet type, floating belt type, and hydraulically assisted |
| Final drive | Two-stage straight gear reducer and splash lubrication |
| Chassis System | |
| Suspension mode | Rigid crossbeam structure |
| Center distance of track (mm) | 2250 |
| Width of track shoes (mm) | 610 |
| Ground length (mm) | 3050 |
| Number of track shoes (One-sided/piece) | 41 |
| Chain track pitch(mm) | 216 |
| Number of carrier rollers (One-sided) | 2 |
| Number of track rollers (One-sided) | 7 |
| Working hydraulic system | |
| Working pump | Fixed displacement gear pump, with maximum displacement at 116ml/r |
| Pilot pump | Fixed displacement gear pump, with maximum displacement at 10ml/r |
| Operating valve | Proportion multi-way valve |
| Counterweight cylinder bore(mm) | φ125 |
| Tank capacity | |
| Fuel tank (L) | 465 |
| Working hydraulic oil tank (L) | 180 |
| Working device | |
| Maximum lifting height(mm) | 5250 |
| Hook lifting speed m/min | 0–6.5 |
| Boom length (m) | 6.5 |
