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SP75 Versatile Function Paver

Full Hydraulic Paver SP75

SP75 versatile paver is developed by our company, which is suitable for paving highway base and surface. It absorbs advanced technology of foreign machine, high automation, easy operation and high efficiency make it ideal machine for the user.
The machine is of hydraulic driving and is equipped with mechanically pieced screed with vibrator and double tamper. Swing of tamper can be adjusted. SP75 versatile paver can pave the road with good leveling and high density. The machine's vulnerable parts use advanced wearable material to make sure the performance.

Parameter of Full Hydraulic Paver
Paving Width (mm): 3000-7500
Paving Thickness (mm): 20-320
Paving Speed (m/min): 0-16
Traveling Speed (km/h): 0-3.6
Engine Power (kW): 161
Hopper Capacity (t): 14
Max. Theoretical output (t/h): 600
Vibrating Frequency (Hz): 0-50
Tampering Frequency (Hz): 0-1500
Weight (kg): 22000~26000
Overall Size: 6314×3182×3848
Engine: six cylinders, water cooled engine 161Kw/2300r/min

Driving System
The whole machine is hydraulically driven. The engine is connected with gearbox to drive all the hydraulic pumps, which supply power to the components as follows:
1. Left & right crawlers traveling devices        
2. Left and right conveyors
3. Left & right feeders    
4. Double tamper    
5. Vibrating devices
6. Hopper folded in & out, screed up & down, screed extension & withdrawal, pivot cylinder

Traveling Device
Crawlers at both sides are hydraulically driven independently, controlled by microcomputer. It is consisted of variable motor and planet speed reducer of big ratio, which are connected with each other as a whole and installed in the drive hub.

Weight Bearing Mode
Each crawler has ten bearing wheels of free lubrication, which use power accumulator for tension. The rubber patches are replaceable. Each crawler touch area is 3247*320mm.

Brake of Parking 
Hydraulic normal close disc brake is installed in each traveling planet speed reducer respectively.

Steering
Left & right crawler driving wheels speed is changed through turning potentiometer knob left or right to realize steering.

Hopper 
The capacity is 14 tons. Hopper folded in & out is operated by hydraulic stroke cylinder for entire discharge.

Push Roller
The roller can swing to push the truck rear wheels.

Conveyor System 
Scraper is used to convey material. Conveyor soleplate is made of imported wearable steel plate.

Transmission: There is respective hydraulic driving system for each scrape conveyor, which is composed of pump, motor, speed reducer and chain transmission. The driven chain wheel runs the scraper.
Operation speed: 0-29m/min. Manual operation can be realized through the switches on the operations console. Auto-operation is realized directly by supersonic material sensor.

Feeder System  
The system uses screw feeder which blades are of high wearable material and are easily replaced.

Transmission: There is respective closed hydraulic driving system for each screw feeder, which is composed of variable displacement pump, motor, speed reducer and chain transmission. The driven chain wheel runs the screw.
Operation speed: 0-100r/min, three-step speed change can be realized through the switches on the operations console. Auto-operation is realized directly by supersonic material sensor.

Electrical System
The system is equipped with MC6 controller and two batteries. The voltage is 24V.

Automatic Leveling Units
There are imported two longitudinal and one transverse automatic leveling units for adjusting longitudinal and transverse level automatically.

Working Devices
One way mechanical extended screed
1. Double tamper impact stroke    primary tamper : 3.5.7.9mm
Secondary tamper: 0.3.6.9.12mm
Pressure: 30MPa
2. Vibration  pressure: 20MPa  
3. Extended screed:
segments: 0.75m/4
segments: 0.5m/2
segments: 0.25m/2


Main Characteristic
1. Full hydraulic Drive, controlled by Microcomputer with Digital Display and Fault Diagnosis Function
The machine use integrative technique of mechanism, electricity, and hydraulic pressure. The two crawlers have closed hydraulic driving systems respectively. This system is controlled by microcomputer for automatic control of constant working speed. The display is 2×24, which has good man-machine interface, and monitors the situation of machine, and diagnoses the fault by itself.
2. Right and Left Hand Conveyors and Feeders are controlled by Ultrasonic Material Sensors to make sure automatic and even feed of material
3. Non connected ultrasonic numerical multi probe auto leveling unit has high accuracy and reliability, which is optional.
4. High Intensity Screed with Double Tamper and Vibrating Device to ensure ideal paving efficiency.
5. Screed Anti-sinkage Function
The screed does not sink while the machine pauses for material loading. This could avoid recess on the paving.
6. Germany BEKA-MAX Centralized Lubrication System.

7. All Key Parts are imported.
8. Humanization design has improved comfortable operation for the driver.

Key Parts
1. Engine: Germany Deutz water cooled diesel engine
2. Pump and Motor: Germany Bosch-REXROTH and USA SAUER-DANFOSS
3. Hydraulic Hose Fittings: USA PARKER
4. Auto leveling unit: Germany MOBA
5. Hydraulic accessories: Germany HYDAC
6. Speed Reducer of Conveyor and Feeder: Italy RR
7. Centralized Lubrication: Germany BEKA-MAX
8. Microprocessor: Germany Bosch-REXROTH MC6
9. Display: Germany REXROTH
10. Switches & Fitting: Germany

Note: All the technical specifications mentioned above will maybe change as the technology development. Please refer to the final offer.

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