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SYNBON SYM3500 Self Loading Concrete Mixer



Type: self loading

Concrete Yield: 3.5 m³

Steering: four-wheel Steering(4WS)


Equipped with a four-wheel steering drive system, the vehicle can be driven in harsh construction environments and complex roads. The lightweight and flexible body is ideal for construction in crowded urban areas, mountains and fields.

The product integrates concrete transportation and agitation, and can be automatically loaded, metered, stirred and unloaded without an external power supply.
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Features & Details


SYM3500 concrete automatic feeding mixer is our self-developed product. It is equipped with hydraulic electronic scale. It can accurately measure the stone and sand when loading, and automatically quantify the water, making the concrete ratio more standard. Transportation and mixing are integrated, and automatic feeding, metering, stirring and unloading can be carried out without additional power supply.

Four-wheel steering axle, with a minimum turning radius of 4 meters, electronic shifting, 290° rotation of the tank, electronic weighing, automatic grease filling for the whole car, driving speed of 30km/h, reasonable design, compact structure and flexible operation. Easy to maintain. The best price and productivity are the unique features of the SYM3500.

Detail photo


**cut costs

Save one loader, one mixer, one tanker, and labor costs for 4-6 workers.

**high working efficiency

Easy to load, accurate measurement, even mixing anytime and anywhere, full-wheel four-wheel drive, suitable for any working condition and road conditions, saving manpower, high efficiency, can produce 110-115 m³ of concrete per day.

Construction Cases

Products Series

Operating instruction

★1 Before operation, ensure that the working systems of the mixer are working properly and are safe and free from the surrounding environment.

*2 The driver is dressed neatly, enters the cab in the correct way, adjusts the seat position, opens and drives the mixer, the cab is fully equipped, equipped with air conditioning system, radio, and joystick designed according to ergonomics, operation Simple, lightweight and flexible.

★3 After the water tank is flooded, the driver controls the bucket with the joystick, loads the bucket sand, and then pours the cement into the bucket. The bucket insert can easily cut the cement outer packaging to avoid waste of raw materials. Then, using the fluidity of the sand, the cement is brought into the drum and then loaded into the aggregate. The electronic weighing system can accurately control the ratio of the ingredients, aggregate, sand, and cement into the mixing drum, and automatically pressurize and mix with water through the water tank. Make it more evenly stirred.

★4 Driving the mixer to the construction site, the SYNBON mixer can prevent rollovers from falling, suitable for any site operation, providing safe and reliable protection for the actual situation, and equipped with a four-wheel steering drive system to enable the vehicle to be in a harsh construction environment. Driving on complex roads, the efficiency diversion system can ensure that the drum is always in a state of agitation during transportation, ensuring that sand and gravel do not settle and ensure the quality of the concrete.

★5 Using the joystick to pass the 290° rotary mixing drum, the concrete can be dumped at a height of 120 cm to 160 cm. During the unloading process, the mixer can move back and forth according to the actual situation.

★6 After the end, use the automatic flushing function of the mixer to thoroughly rinse the mixing drum. Use the automatic flushing function of the mixer to thoroughly rinse the mixing tank to ensure no residue in the tank.

★7 Regularly use the automatic lubrication function to carry out daily maintenance of the vehicle. The SYNBON mixer is dedicated to providing customers with the best solution for mixing and pouring concrete. The lightweight and flexible body is ideal for construction in crowded urban areas, mountains and fields.


SYM3500 Self-Loading-Concrete-Mixer

SYM3500 Self-Loading-Concrete-Mixer

Double-cone drum with double-spiral mixing screws,

mixing blade and convex bottom.

Geometrical Drum Volume:5.3m³
Concrete Output: 3.5m³/ Batch, 14m³/ hour
Drum Rotation Speed: 20 rpm.

Drum is rotated by means of dual gear pump and hydraulic

piston motor in closed circuit. Mixing and discharging

speed is independent from r.p.m. Of diesel engine.

The Discharging process is achieved by reversing operation

of drum. The mixing unit is slewed hydraulically through

270° for high discharge over 2.0M on the four sides of the vehicle.

YUCHAI, YCD4J22G 4-cylinder, Turbo-charged and Water Cooled.
Rated Power:85 KW (116 HP) @2400 rpm
Max. Torque:390 N.m @2000 rpm
Engine optionalCUMMINS Engine is optional on request

Hydrostatic "automotive" transmission with gear pump

and hydraulic motor with hydraulic control,

and reverse gear control on the steering

wheel. 4wheel drive and 4wheel steering. (4x4x2)

Large-size Hub reduction axle with oil bath disc brakes and planetary reducers.
Speed4 F 4R Shift (High Low Speed)
Ist 0-4.5 Km/h 0 – 4.5 Km/h
IInd 0-8 Km/h 0 – 4.5 Km/h
IIIrd 0-12 Km/h 0 - 10.0 Km/h
IVth 0-25 Km/h 0 - 10.0 Km/h
ROPandFOPS Type Closed glass cab is suited in the rear

Air conditioner, tilting front window and anatomic

seat with flexiblesuspension are available.

Dual Gear Pump for Drum Mixing andArm LiftingFlow Rate: 80/40 mL/r
Walking Gear Pump for DrivingFlow Rate: 32 mL/r
Hydraulic Piston Motor Flow Rate: 56 cm³/rev

The functions of drum mixing and arm lifting

are controlled by one hydraulic Joystick.

The functions of revolving and lifting of drum

are controlled by another hydraulic Joystick


Chinese Brand Electronic weighing system

is available upon request. The ”Load cells”

are acting on the drum, and technical data are

displayed on the shovel loader weigher inside the cabin.


Loading Shovel: is fitted with teeth in front and

completed with hydraulic opening gate.

The lifting arms are controlled by

double-acting hydraulic cylinders.

Volumetric capacity600 L
Number of loaderfuls per load:Around 6

Chute: could be mechanically tilted and slewed at 90°by

means of one adjustable handle. 2 PCS of discharging

chute extensions are provided as standard equipment.

Self-priming hydraulic water pump with quick-suction.
Max. capacity550 L/min

Two connected steel water tanks are

positioned opposite each other

total capacity 2×310 L
Gradient: Fully loaded 40%

Air cap oil service brake. Internal oil-bath disc service

acting on the 4 wheels. Negative hydraulic parking

brake, with internal wheel hub discs on the front axle

TypesOff road industrial type
Model16/70-22.5, PR14
SteeringHydrostatic front wheels steering.
Mini. Turning Radius:5300 mm
Alternator24V—1500 Wa

for electric starter and road lighting.

Safety battery cut-off.

Fuel Tank:75 L
Total hydraulic system capacity75 L
Engine Oil16 L
Chassis: Articulated chassis for off-road operation
Operating Weight 7500 kg
Load-carrying Capacity8400 kg
Max. Gross Weight15900 kg

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