Structures of YZK12HD Road Roller:
1. Road Roller YZK12HD with Rexroth is equipped with DongFeng Cummins engine
2.Double frequency & Double amplitude and super centrifugal force creates strong compacting effect
3. PD model are comprised of 3 segments and are dismantled.
4. Hydrostatic travel and vibration drive, and stepless speed regulating.
| Overall Dimension | |||
| 1 | Length | 6000mm | |
| 2 | Width(to outside of wheels) | 2300mm | |
| 3 | Height(To the top of the cab) | 3055mm | |
| 4 | Wheel base | 2915mm | |
| 5 | Tread | 1560mm | |
| 6 | Min. ground clearance | 420mm | |
| Main Technical Specification | |||
| 1 | Static line force(without PD) | 340N/cm | |
| 2 | Dynamic line force(without PD) | 1300 N/cm | |
| 3 | Operating weight | With PD | 13200kg |
| Without PD | 12100kg | ||
| 4 | Nominal Amplitude with PD | high | 1.45 mm |
| low | 0.7mm | ||
| Nominal Amplitude without PD | high | 1.8 | |
| low | 0.9 | ||
| 5 | Centrifugal Force-high-low | At low frequency and high amplitude | 274kN |
| At high frequency and low amplitude | 171kN | ||
| 6 | Distribution weight of Drum | With PD | 8100kg |
| Without PD | 6980 kg | ||
| 7 | Distribution weight of Tyres | 5100kg | |
| 8 | Frequency | 31/35Hz | |
| 9 | Min. turning radius(Outside of rear wheel) | 5900mm | |
| 10 | Drum dimension(with PD):Diameter X width X thickness | 1722×2100×28(mm) | |
| Drumdimension(withoutPD):DiameterXwidth X thickness | 1530×2100×28(mm) | ||
| 11 | PD model specification | Number of pad feet | 135 |
| Area of one pad foot | 126cm2 | ||
| Height of pad feet | 80mm | ||
| 12 | Traveling speed(Km/h),3 forward &3 reverse | ||
| (1) 1st gear (F/R) | 0~4.8 | ||
| (2) 2nd gear (F/R) | 0~6.4 | ||
| (3) 3rd gear (F/R) | 0~10.6 | ||
| 13 | Gradient capacity | With PD | 30% |
| Without PD | 40% | ||
| Diesel engine | |||
| 1 | Model | DongFeng Cummins engine 6BTA5.9 | |
| 2 | Type | Vertical, in-line, liquid-cooled and four-stroke engine | |
| 3 | Rated output | 110 kW | |
| 4 | Total exhaust of cylinder | 5.9 (L) | |
| 5 | Rated speed | 2200(r/min) | |
| 6 | Max. Torque | 590(N.M)/1500RPM | |
| 7 | Starting type | Electric | |
| 8 | Min. specific fuel consumption | 229(g/Kw.h) | |
| 9 | Net weight | 430(kg) | |
| Driving System | |||
| 1 | Model | Hydrostatic travel and vibration drive | |
| 2 | Type | Drive pump +drive motor + reducer | |
| 3 | Model of drive pump | A4VG71HWDL1/32R-NAF02F041D-S | |
| 4 | Model of vibration driving motor +reducer Ratio of reducer | A6VE55EZ4/63W-VZL027B+GFT26T2 62 | |
| 5 | Model of rear driving motor+ reducer Ratio of reducer | A6VM80EZ4/3W-VAB027B+EM1020/MR 3.08 | |
| 6 | System pressure | 38MPa | |
| Axle and Tire | |||
| 1 | Type of main reducer | spiral bevel gear, single stage | |
| 2 | Gear ratio of main reducer | 3.889 | |
| 3 | Type of final reducer | Single stage planetary | |
| 4 | Gear of ratio of final reducer | 4.941 | |
| 5 | Total ratios | 23.2584 | |
| 6 | Rim model | DW20 | |
| 7 | Size of tire | 23.1-26-12PR | |
| Working Device Hydraulic System | |||
| 1 | Model of vibratory pump | A10VG45EZ2DM1/10R-NSC10F013D | |
| 2 | System pressure | 280(kgf/cm2) | |
| 3 | Model of vibratory motor | A10FM45/52W-VRC60N007 | |
| Steering System | |||
| 1 | Type | Middle articulated frame. Full-hydraulic Steering | |
| 2 | Model of steering pump | AZ-PF-1X/022RRRR20KB | |
| 3 | Model of redirector | BZZ1-E500C | |
| 4 | System pressure | 15MPa | |
| 5 | Dimension of steering cylinder | Ф90*45*280(mm) | |
| Brake System | |||
| 1 | Type of traveling brake | traveling brake depend on static hydraulic tow of close-circuit system. vibratory reducer with a brake which control by a solenoid valve. | |
| 2 | Type of parking brake | Hand brake Flexible shaft control clamp brake | |
| Oil Capacity | |||
| 1 | Fuel(diesel) | 250 (L) | |
| 2 | Engine lubricating oil | 15 (L) | |
| 3 | Oil for hydraulic system | 140 (L) | |
| 4 | Oil for driving axles(F/R) | 24 (L) | |
| 5 | Oil for vibrating drum | 2X56(L) | |
| 6 | Reducer(EM1020/MR/3.08) | 2.2L | |
