Engine
Perkins 904J-E36TA
Power
100 HP (74.4 kW)
Engine Volume
3621 cc
Bucket Breakout Force
7734 kgf
Operating Weight
9.250 kg
Emission Class
EU Stage V / U.S. EPA Tier 4 Final
Silence, Comfort and Performance; MST 644S
Specially designed for operators, the 644S offers not only a powerful but also a comfortable ride. The best-in-class wide viewing angle allows the operator to have a better view of the work area, while the new left console, spacious control cabin and swivel comfort increase operators' comfort and efficiency during long working hours.
| ENGINE | |
| Brand | PERKINS |
| Model | 904J-E36TA |
| Type | Diesel |
| Number Of Cylinders | 4 |
| Bore & Stroke | ø 98mm x 120mm |
| Displacement | 3621 cc |
| Max. Power | 100 HP (74.4 kW) @ 2400 rpm |
| Max. Torque | 430Nm @ 1500 rpm |
| Emission Class | EU Stage V / U.S. EPA Tier 4 Final |
| TRANSMISION |
| Heavy Duty Powershift Transmission |
| 4 Forward & 4 Reverse Gears |
| Max Speed On Road 40km/h |
| Full Power Hydrostatic, Priority Valve |
| Electrically Controlled 2 Wheel Drive or 4 Wheel Drive Selection |
| Torque Converter with 2,64:1 stall ratio |
| Transmission Oil Cooler |
| AXLES |
| Heavy Duty Service Type Axles |
| 16° oscillation on the front axle |
| Electrically Controlled 2 Wheel Drive or 4 Wheel Drive Selection |
| Ourboard Planetary Reduction |
| Differential Lock on the rear axle |
| HYDRAULIC SYSTEM | ||
| Type | Tandem Gear Pump | Piston Type Pump |
| Flow Rate | 145 L/min @ 2200 rpm | 162.8 L/min @ 2200 rpm |
| Pressure | 240 bar | 240 bar |
| WEIGHT | |
| Operating Weight | 9.250 kg (Telescopik) / 8.970 kg (STD Arm) |
| BRAKES | |
| Service Brake | Hydraulic Boosted Twin Ø 31.75 Compensating self Bleed Master Cylinder |
| Park Brake | Rear axle input, Manually adjusted Caliper, cable operated, Mounted on transmisson output |
| FILLING CAPACITIES | |
| Engine Oil with Filter | 10.5 L |
| Engine Cooling System | 17 L |
| Fuel Tank | 140 L |
| Transmission | 23.5 L |
| Hydraulic Oil Tank / Total System | 62 L / 145 L |
| ELECTRIC SYSTEM | |
| Voltage | 12 V |
| Optional Battery | 165 A/h |
| Altrernator | 120 A |
| TIRES | |
| Front Tires | 16.9-28" 14PR |
| Rear Tires | 16.9-28" 14PR |
| LOADER PERFORMANCE | |
| Max. Bucket Breakout Force | 7734 kgf |
| Max. Arm Breakout Force | 5905 kgf |
| Lift Capacity at Max. Height | 3200 kg |
| BACKHOE PERFORMANCE | TB ( Extended) | TB ( Retracteded) |
| Bucket Capacity | 0.17 m³ | 0.17 m³ |
| Max. Bucket Breakout Force | 6424 kgf | 6424 kgf |
| Max. Arm Breakout For | 2506 kgf | 3461 kgf |
