Dual path hydrostatic drive with electronic control technology
• Leverage Caterpillar technology and experience on TTT designing and production
• Single lever for speed changes, direction control, counter rotation, power-steering operation delivers higher efficiency.
• Counter-rotation and power-steering feature delivers excellent maneuverability on job sites.
• Counter rotation—Tracks counter rotate to provide best in class maneuverability.
• Power-steering —Machine maintains full power through steering to increase productivity.
Comfortable Operation
• Multi-function joystick allows for counter-rotation, powered turn and cruise control reduce operator’s working loading and improve the productivity.
• Pilot joystick control provides comfortable precise blade operation.
• Fuel level indicator is standard so that operator can know the instant fuel volume and charge it in time.
Blade and implementation system
• SU blade combines the excellent penetration of the S blade and the high production capacity of the U blade.
• L-shaped push arms bring the blade closer to the machine, providing excellent maneuverability, balance and blade penetration.
• Blades feature a strong box section design, made from high tensile strength steel to stand up to the most severe applications.
Undercarriageand brake system
• Undercarriage is provided by a world class supplier ensures high reliability and resistance to wear.
• Carrier rollers track rollers and idle rollers are all maintenance free.
• Planetary final drive design delivers increased torque ratio for higher transmission efficiency and lower maintenance cost.
• Durable final drive bearings and multiple wet disc brakes provide reliability, reduce system heat and extend overall life.
Structures
• Machine structures are analyzed using Finite Element Analysis (FEA) and On Machine Stress Analysis (OMSA) to identify and protect high stress areas.
• Advanced structure welding technique, relieving welding stress.
Cooling system
• Standard cooling system meets -43°C ambient temperatures heat exchange requirementand +50°C high ambient cooling package is optional.
• Modular designed radiator, avoid the interaction easy to disassemble and reassemble.
•Hinged radiator louvered guard allows easy accessfor daily maintenance.
Maintenance
• Electronic Control Module (ECM) fault diagnosis system,automatic diagnosis of eight key parameters.
• Monitoring system provides three levels alarming for signals from different system,easily indicate the location or system the failures or defects from
• Small volume transmission oil requirement for hydrostatic system (40L only) with longer service interval (2000 hrs),reduces maintenance cost by 60%.
• Implement valve mounted outside of hydraulic tank provides easy access to check and service.
| Model | SEM816 | SEM816LGP | SEM822 | SEM822LGP |
| Operating Weight | 17,230 kg | 19,720 kg | 23,680 kg | 25,400 kg |
| Ground Pressure | 68 kPa | 31.5 kPa | 70 kPa | 39 kPa |
| Ground Clearance | 410 mm | 435 mm | 394 mm | 394 mm |
| Max.Gradeability | 30 | 30o | 30o | 30o |
| Engine | ||||
| Model |
Weichai WD10G 178E25 |
Weichai WD10G178E25 |
Weichai WD12G240E26 |
Weichai WD12G240E26 |
| Flywheel Power |
120 kW / 160 hp |
120 kW / 160 hp | 162 kW / 220 hp |
162 kW / 220 hp |
| Working Tool | ||||
| Blade Type |
SU ( S Blade is Option ) |
S |
SU (U Blade is Option) |
S |
| Blade Capacity |
4.3 m 3 ( S 3.4 m³) |
3.4 m3 |
6.4 m 3 U 7.5 m 3 |
5.5 m3 |
| Blade Width |
3,140 mm (S 3,490mm ) |
4,227 mm | 3,720 mm U 4,015 mm | 4,617 mm |
| Blade height |
1,240mm ( S 1,165mm ) |
1,000mm | 1,511 mm U 1,420 mm | 1,345 mm |
|
Max. Blade Digging Depth |
430 mm | 470 mm | 563 mm | 600 mm |
|
Max. Blade Lift Ground Clearance |
1,041 mm | 1,055 mm | 1,140 mm | 1,165 mm |
| Max.OutputRimpull | 280 kN | 280 kN | 350 kN | 350 kN |
|
Maximum Digging Depth Of Ripper |
584 mm | N/A | 650 mm | N/A |
|
Maximum Clearance Under Tip |
615 mm | N/A | 640 mm | N/A |
| Powertrain | ||||
| Type |
Electronic control, Dual-path, Hydrostatic Drive |
Electronic control, Dual-path, Hydrostatic Drive |
Electronic control, Dual-path, Hydrostatic Drive |
Electronic control, Dual-path, Hydrostatic Drive |
| Travel Speed- F/R |
0 - 10 km/hr (Infinitely Variable Speed Control) |
0 - 10 km/hr (Infinitely Variable Speed Control) |
0 - 11.5 km/hr (Infinitely Variable Speed Control) |
0 - 11.5 km/hr (Infinitely Variable Speed Control) |
| Steering & Brake |
Hydrostatic Steering, Wet, Multiple-Disc Brakes |
Hydrostatic Steering, Wet, Multiple-Disc Brakes |
Hydrostatic Steering, Wet, Multiple-Disc Brakes |
Hydrostatic Steering, Wet, Multiple-Disc Brakes |
|
Minimum Steering Radius |
3610mm (Counter-rotation available) |
3,740 mm (Counter-rotatedavaliable) | 4,225mm (Counter-rotated avaliable) |
4,300mm (Counter-rotated avaliable) |
| Undercarriage | ||||
| Track Shoe Width | 510 mm | 1,050 mm | 560 mm | 915 mm |
| Track Shoe Quantity | 37 piece | 42 piece | 40 piece | 45 piece |
|
Length Of Track On Ground |
2,430 mm | 2,925 mm | 2,948 mm | 3,488 mm |
| Track Gauge | 1,880 mm | 2,300 mm | 2,000 mm | 2,340 mm |
|
Track Roller Quantity |
6/Side | 7/Side | 7/Side | 8/Side |
|
Carrier Roller Quantity |
2/Side | 2/Side | 2/Side | 2/Side |
| Hydraulic System | ||||
| Type | Pilot Control | Pilot Control | Pilot Control | Pilot Control |
|
Implement Hydraulic SystemPressure |
19 Mpa | 19 Mpa | 19 Mpa | 19 Mpa |
|
Service Refill Capacities |
||||
| Cooling system | 45 L | 45 L | 45 L | 45 L |
| Hydrostatic Oil | 40 L | 40 L | 62 L | 62 L |
| Implement Oil | 60 L | 60 L | 110 L | 110 L |
| Fuel | 320 L | 320 L | 460 L | 460 L |
|
Pivot Shaft Case (each side) |
1.2 L | 1.2 L | 0.8 L | 0.8 L |