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Motor grader

A lot of offers in the market of earthmoving equipment makes the consumer pay more attention to the choice of a machine.

Reliability, performance and a reasonable price are what attracts the current and future owners of new SEM graders.

SEM plant is a part of Caterpillar®, which provides worldwide recognized quality technology.

The balanced grader hydraulic system uses an axial piston pump and a proportional pressure compensation (PPPC) unit. It should be noted that PPPC is used only on Cat® graders, i.e. manufacturers in Russia and China do not use this technology. The use of the specified pump and distributor guarantees a smooth and uniform stroke of the working units.

Shut-off valves located not on the outside of the hydraulic lines but inside the valve box minimize possible fluid leakage and increase the reliability of the hydraulic system.

All-wheel drive synchronization is carried out by a computer.

On the front frame there is a comfortable cabin. This arrangement facilitates visibility and control of the machine, reduces vibration and noise.

SEM graders will not let their owner down even in the most adverse conditions. A reinforced box-shaped traction frame with solid upper and lower plates from the connecting unit to the front beam eliminates the possibility of cracks.

The wear-resistant Triangle rubber is ideal for driving on any road surface thanks to the checker pattern.

The site presents 3 models of graders:

— SEM 919

— SEM 921

— SEM 922

SEM 919 and SEM 921 – triaxial models (1х2х3), SEM 922 – all-wheel drive grader model (1х3х3).

Knowing the upcoming scope of work, according to the presented characteristics, it is easy to choose a suitable model of equipment.

You can find out more about each of the models of motor graders manufactured by SEM in our catalog, as well as purchase a motor grader at an affordable price, on our website.

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SEM 636D (Weichai)

18,533,000.00KZT
Series: Wheel loader D series Operating conditions: For light-duty Loading capacity: 3.6 tons Reliable motor: Mounted on the front loader motor Deutz TD226B-Stage 1, due to high technology, is characterized by excellent fuel efficiency. With a working volume of 6.75 liters, the motor has a large torque reserve and is capable of developing a power of 92 kW at a nominal speed of 2200 rpm. Transmission: The Front loaders are equipped with a countershaft transmission and a gearshift pattern under load. This provides the machine with high efficiency when operating in heavy conditions. The presence of 2 reverse and 4 front speeds provides the operator with ample opportunities to choose the optimal speed mode depending on the operating conditions. Additional equipment: Sale of front loaders involves the possibility of changing the basic configuration. On request, the loader can be equipped with a protective design against overturning ROPS. To increase the comfort of the operator, it is possible to install a heater and air conditioning system. Hydraulic system: Installed on the front loader SEM 636 D hydraulic system is characterized by high performance and reliability, which allows the efficient use of heavy attachments. The short time of the total hydraulic cycle contributes to the high productivity of the machine. Braking system: Front loaders are equipped with an efficient and reliable braking system. Pneumohydraulic actuator calipers ensures effective braking in the close conditions, and "dry" the working of the brakes improves serviceability. Axles: Reliable axles Meritor -30 mounted on a front loader, contribute to the long life of the machine. The fixed design of the front axle and the rear axle mounted on the movable frame provide the loader with excellent maneuverability and controllability regardless of the size of the workload and the complexity of the ground surface.

SEM518

29,283,000.00KZT
High efficiency: the unique construction of the shaking unit together with the drum, 50 mm dimension and provide superior sealing performance. Reliability: the shaking system uses an eccentric vibration shelf design, extends the service life up to 50%. Maintenance: counter timer and three-state control system of monitoring system. Application
  • Fields of application - soil compaction in the construction of roads and railways, runways and industrial sites
  • A complete set with a roller with diamond-shaped cams for compaction of clay soils is possible
  • Available with a square-shaped cam roller to seal the sand
High efficiency
  • Rolling press, 50 mm dimension, compacts the soil by 10-15% better than competitive equipment
  • Seal off building block cooling system operates at an ambient temperature of 43°C
Reliability
  • Capsule vibration mechanism extends service life up to 50%
  • Closed center hydraulic system with displacement pump and motor from world famous manufacturer
  • Electronically controlled transmission provides ease and convenience in operation
Maintenance
  • Digital frequency counter tracks the frequency of seal
  • Three-level alarm system and motor speed sensor monitor the performance of the machine
  • Capsule vibration mechanism with eccentric weights increases the service life of the vibration system by 50%
  • Steel shot moving inside the hollow eccentric load provides a stable oscillation amplitude, reduces the impact on the motor, increases the frequency of system maintenance
  • Fully sealed actuator cam prevents contamination, increases life of bearings
  • SEM 518 Roller is equipped with a 40 mm dimension rolling press
Seal off modular cooling system
  • Intake fan drives cold air through the radiator, providing excellent cooling
  • Additional installation of cooling system for hot climate allows to operate the machine at ambient temperature up to 50°C
  • The secondary cooling tank ensures constant system pressure and convenient visual control of the coolant level
Hydraulic system with closed center
  • Increases efficiency by 20% compared to an open center system
  • Reduces oil pollution, prolongs the service life of the hydraulic system
  • Maintains higher pressure with less energy loss
  • Simplifies the layout of the hoses
  • A smaller tank is required, which reduces maintenance costs
  • Hydraulic components VibroSystem world-class
  • At the Roller SEM 518 are mounted piston pump and motor Sauer brand
  • The high-pressure hose (at vibrosystems)
  • High reliability hoses and connections of the Eton brand are used
  • Optimized layout of hose increases their service life
  • Electronic-controlled transmission
  • Easier switching reduces operator fatigue and increases work efficiency
  • High reliability
  • The axle is equipped with a differential with a proportional torque divider (PTD)
  • PTD redistributes the torque transmitted to the wheels, depending on the condition of the ground, improves traction
  • Ability to overcome the slope of 34%, while competitors only 30%
  • Optimally matched transmission ratio ensures higher speed in 1st gear
  • Measuring the frequency of vibration
  • Constantly shows the frequency of seal
  • Operator can choose suitable frequency to avoid excessive compaction
  • Three-level alarm system
  • The machine detects problems in the system and notifies the operator about them with the help of 3 light indicators and a sound alarm

SEM816D

63,511,000.00KZT
Efficiency: electronically controlled hydrostatic drive system and multi-function joystick provide a high level of productivity and maneuverability. Convenient operation: the cab is ergonomically designed for increased operator comfort and visibility. An advanced monitoring system controls the operating conditions of the vehicle and informs the operator about all the vital functions of the vehicle. Reliability: proven hydrostatic design, as well as world-class pumps and motors ensure highly reliable bulldozer quality. Undercarriage components are designed to longer-term lifespan in contrast to leading competitors. Operational capacity: SEM bulldozers are designed for easy access to reduce overall maintenance time. Electronic control module gives the possibility to quickly troubleshooting. Hydrostatic drive with electronic control technology
  • Hydrostatic system provides higher efficiency and maximum output tractive effort – 280 кN.
  • Maintenance costs reduced by 60% compared to competitors that use a hydraulic torque converter and transmission design.
  • Reverse rotation and power reversal functions provide excellent maneuverability on work sites
Comfortable operation
  • Counterrolling — caterpillars rotate in the opposite direction, which provides better maneuverability in the class.
  • Turn under load — the car retains full power when turning, which increases its productivity.
  • Cruise control — the operator can maintain previous speed settings, which makes work easier.
  • The multi-function joystick allows to perform reverse rotation, rotation under load and set cruise control.
  • Pilot control with a joystick ensures comfortable and precise blade operation
SU type blade
  • SU type blade combines excellent penetration of S type blade and high performance of U type blade
  • Designed for the best load retention and penetration into tightly pressed materials
  • L-shaped pushing bars keep the blade closer to the vehicle, which provides excellent maneuverability, balancing and penetrating ability of the blade.
  • The blades have a robust box-section construction made of high-strength steel, which can withstand the most difficult working conditions
Undercarriage
  • Undercarriage that was produced by a world-class manufacturer provides high reliability and wear resistance.
  • Guide rollers, track rollers and carrying idlers are free of maintenance.
  • Planetary final drive design provides increased torque ratio for maximum transmission efficiency and lower maintenance costs
  • Long-lasting final drive bearings and brakes with multiple oil-cooled discs are highly reliable, reduce system heating and extend overall life
Structure
  • Structural details of the vehicle are verified using finite element analysis (FEA) and workload analysis (OMSA), which allows you to identify and protect high voltage areas
  • Advanced welding technologies of structural elements that relieve welding stress
Modular radiator
  • New advanced cooling system enables operation at ambient temperatures from -43 ° C to +50 ° C
  • Modular radiator is easy to maintain, remove and repair
  • Radiator grill provides better heat transfer and easy access for maintenance
Maintenance
  • The electronic control unit (ECM) of diagnostic system performs automatic diagnostics of eight key parameters
  • The monitoring system displays warning signals of three levels, reporting the results of fault diagnosis
  • The hydrostatic system requires less maintenance (every 2000 hours of operation), which reduces the time for maintenance by 50%
  • Implement valve group mounted outside the hydraulic fluid reservoir provides easy access for inspection and maintenance

SEM922

61,576,000.00KZT
High productivity: load sensing hydraulic system provides consistent and precise blade movement. High reliability: A-shaped traction frame provides strength in all blade positions. Comfort:  layout of world-class controls with light leverage gives the possibility to reduce operator fatigue.
  • Hydraulic system
  • Directional control valves with proportional pressure compensation (PPPC) valves are designed specifically for graders. They continuously adjust the flow and pressure in the hydraulic system in accordance with the load and control actions, which greatly facilitates the control of all functions.
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SEM921

56,717,000.00KZT
High productivity: load sensing hydraulic system provides consistent and precise blade movement. High reliability: A-shaped traction frame provides strength in all blade positions. Comfort:  layout of world-class controls with light leverage gives the possibility to reduce operator fatigue.
  • Hydraulic system
  • Directional control valves with proportional pressure compensation (PPPC) valves are designed specifically for graders. They continuously adjust the flow and pressure in the hydraulic system in accordance with the load and control actions, which greatly facilitates the control of all functions.
Автогрейдер SEM 915

SEM919

49,708,000.00KZT
High productivity: load sensing hydraulic system provides consistent and precise blade movement. High reliability: A-shaped traction frame provides strength in all blade positions. Comfort: layout of world-class controls with light leverage gives the possibility to reduce operator fatigue. • Hydraulic system • Directional control valves with proportional pressure compensation (PPPC) valves are designed specifically for graders. They continuously adjust the flow and pressure in the hydraulic system in accordance with the load and control actions, which greatly facilitates the control of all functions.
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