John Deere 644 X-Tier Mid-Size Wheel Loader
Make | John Deere |
Model | 644 X-Tier |
Type | Mid-Size Wheel Loaders |
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Description
- Net Power: 172 kW (231 hp) at 1,500 rpm
- Operating Weight: 18 856–18 892 kg (41,571–41,649 lb.)
- Bucket Capacity: 3.1–3.6 m3 (4.0–4.75 cu. yd.)
Models
E-Drive Innovation
- Innovative E-Drive transmission system delivers premium performance and efficiency. System includes an engine-driven generator plus an inverter to control the electric motor that drives a simplified PowerShift™ transmission.
Ground-Level Service
- All daily service points including fuel are conveniently grouped on the left side of the machine at ground level, for easy access.
- Hinged doors enable wide-open access to the engine, cooling system, and other components.
EH Controls
- Seat-mounted hydraulic controls include two programmable multifunction buttons and intuitive electrohydraulic (EH) controls.
- With the capacity to control up to six functions on the single hydraulic joystick, cycle times and productivity when using hydraulic attachments are improved.
Buckets & Linkage
- A wide-ranging selection of enhanced production buckets with integrated spill guards, curved side cutters, and impressive rollback maximizes bucket-fill performance and material retention.
- Choose from hi-vis and JRB-style couplers to maximize fleet versatility and machine utilization.
Comfortable Cab
- Spacious cab boasts ample legroom and features ergonomically placed controls, foot pedals, and sealed-switch module.
- Running wide open at 1,600 rpm, the in-cab noise rating is just 70 dBA.
Specifications
- CAPACITIES - Alternator Output, Amp: 140
- CAPACITIES - Axle - Front, ltr (gallons (US)): 22 (5.75)
- CAPACITIES - Axle - Rear, ltr (gallons (US)): 22 (5.7)
- CAPACITIES - Breakout - Bucket , kgf (lbf): 15574 (34334)
- CAPACITIES - Fuel Tank, ltr (gallons (US)): 350 (92.6)
- CAPACITIES - Heaped Capacity, m³ (yd³): 3.2 (4.25)
- CAPACITIES - Hydraulic Tank, ltr (gallons (US)): 103.4 (27.3)
- CAPACITIES - Largest bucket capacity, m³ (yd³): 3.4 (4.5)
- CAPACITIES - Pump Flow - 1, lt/min (gallons (US) / min): 265 (70)
- CAPACITIES - Pump Type: Piston
- CAPACITIES - Ride Control System: Optional
- CAPACITIES - Smallest bucket capacity, m³ (yd³): 3.2 (4.25)
- CAPACITIES - System Pressure, bar (PSI): 251.66 (3650)
- CAPACITIES - System Voltage, V: 24
- CAPACITIES - Transmission, ltr (gallons (US)): 32 (8.5)
- DIMENSIONS - Ground clearance, mm (inches): 386 (15.2)
- DIMENSIONS - Height - Over Cab, mm (ft/in): 3450 (11 ft 4 in)
- DIMENSIONS - Height - Pivot Pin, mm (ft/in): 4090 (13 ft 5 in)
- DIMENSIONS - Length - Including Bucket, mm (ft/in): 8260 (27 ft 1 in)
- DIMENSIONS - Reach - At 2130mm 45° Dump, mm (ft/in): 1610 (5 ft 3 in)
- DIMENSIONS - Turning Circle - Maximum, mm (ft/in): 13000 (42 ft 9 in)
- DIMENSIONS - Wheelbase, mm (ft/in): 3310 (10 ft 10 in)
- DIMENSIONS - Width Over tires - Std, mm (ft/in): 2875 (9 ft 5 in)
- DRIVELINE - Displacement, ltr (Inches³): 6.8 (415)
- DRIVELINE - Emission Rating: Tier 4 / Stage V
- DRIVELINE - Engine Manufacturer : John Deere
- DRIVELINE - Engine Model: PowerTech PSS 6068
- DRIVELINE - Engine Output - Net, kW (hp): 172 (231)
- DRIVELINE - Front Differential Type: Locking
- DRIVELINE - Parking Brake - Type: Wet Multi Disc
- DRIVELINE - Rated Speed, rpm: 1500
- DRIVELINE - Rear Differential Type: Open
- DRIVELINE - Service Brake - Actuation: Hydraulic
- DRIVELINE - Service Brake - Location: All Wheels
- DRIVELINE - Service Brake - Type: Wet Disc
- DRIVELINE - Tire size - Standard: 23.5 R25
- DRIVELINE - Torque Rise, %: 36
- DRIVELINE - Torque, Nm (lbf / ft): 1095 (808)
- DRIVELINE - Transmission Type: Powershift w/Hybrid-Electric Drive
- WEIGHTS - Operating Weight, kg (lbs): 18856 (41571)
Features
- Operating Weight: 18 856-18 892 kg (41,571-41,649 lb.)
- Bucket Capacity: 3.1-3.6 m3; (4.0-4.75 cu. yd.)
- Engine Net Power: 172 kW (231 hp)
Copy Set
E-Drive Innovation
- Innovative E-Drive transmission system delivers premium performance and efficiency. System includes an engine-driven generator plus an inverter to control the electric motor that drives a simplified PowerShift™ transmission.
Ground-Level Service
- All daily service points including fuel are conveniently grouped on the left side of the machine at ground level, for easy access.
- Hinged doors enable wide-open access to the engine, cooling system, and other components.
EH Controls
- Seat-mounted hydraulic controls include two programmable multifunction buttons and intuitive electrohydraulic (EH) controls.
- With the capacity to control up to six functions on the single hydraulic joystick, cycle times and productivity when using hydraulic attachments are improved.
Buckets & Linkage
- A wide-ranging selection of enhanced production buckets with integrated spill guards, curved side cutters, and impressive rollback maximizes bucket-fill performance and material retention.
- Choose from hi-vis and JRB-style couplers to maximize fleet versatility and machine utilization.
Comfortable Cab
- Spacious cab boasts ample legroom and features ergonomically placed controls, foot pedals, and sealed-switch module.
- Running wide open at 1,600 rpm, the in-cab noise rating is just 70 dBA.