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Overview of Komman Independent Air Suspension
Independent air suspension means that the axle is divided into two sections, the wheels on each side are individually suspended under the frame or body through elastic elements, and the middle section is fixed to the frame or body. At present, double wishbone type air suspension system in automobile is widely used in buses. Komman independent airbag trailer suspension products have a competitive advantage in the market. Our air bag suspension supplier can provide customers with airbag independent suspension solutions with maximum axle loads ranging from 3 tons to 7.5 tons.

Advantages of Independent Air Suspension
When one wheel bounces, the other wheel is not affected. The left and right wheels bounce independently and are not related to each other, which can reduce the tilt and vibration of the frame and body when driving on uneven roads, And it helps to eliminate the phenomenon of continuous deflection of the steering wheel, and the stability and comfort of the vehicle are good.

Reduce the non-spring bearing mass, thereby reducing the impact load on the suspension, and improving the ground adhesion of the wheels, which can increase the average driving speed of the bus.

Due to the use of a disconnected axle, the engine position can be lowered and moved forward and the center of gravity of the bus can be lowered, which is conducive to improving the stability of the bus. A softer spring with low stiffness can be used to reduce the vibration frequency of the vehicle body to improve driving comfort.

Through design optimization and matching, the suspension guiding mechanism and the steering rod system can be optimized, so that the vehicle has excellent kinematics, reduces the movement interference between the rod systems, improves the tire adhesion, and reduces tire wear.

The system module can be directly assembled by the OEM after debugging, thereby reducing the production cost of the OEM's logistics and assembly adjustment.

Protection of the road surface: Compared with the traditional commercial vehicle suspension, the impact on the road surface can be reduced by about 25%.

Komman Independent Air Suspension Product Solution Introduction
AFD035 Series Independent Air Suspension System
Structural Features

The basic structure of the independent air suspension adopts a double-wishbone structure, which is suitable for full load-bearing chassis and beam-type frames; the suspension guiding elements and steering system are integrated through the lower longitudinal beams to ensure installation accuracy and four-wheel positioning.

The steering rod system of independent airbag trailer suspension is arranged in a "quadrangular" steering mode, which is compact and reasonable, and has high steering efficiency; the steering rod system is rear-mounted, and the suspension size is small in the Y direction, which is suitable for the short front suspension and center-opening models; it can meet the requirements of vertical steering and horizontal Steering machine layout.

The Main Technical Parameters
Komman ModelAFD035 Series Front Independent Air Suspension System
Rated Load3500KG
Brake Specifications19.5"
Axle Travel165mm（+80/-85)
Airbag Installation Height240mm
Tire Model215/75 R17.5or 235/75 R17.5
Front-wheel Positioning ParametersToe：（0-2）mm
Caster angle：3.5˚±30′
Kingpin Inclination：8.5˚±30′
Camber Angle：0.5˚±20′

AFD050/055 Series Independent Air Suspension System
Structural Features

High-rigidity double A-arm structure, wide airbag span, low unsprung mass, low dynamic load impact, good vehicle driving smoothness, and good tire grounding; can be implemented in three-stage and two-stage according to needs. The steering transmission mechanism meets the needs of large wheel angles and has good steering performance. The applicable channel width of the suspension is 650-900mm; the ground clearance is up to 350mm, which can be matched with 19.5" and 22.5" disc brakes, which is more adaptable; optional The overall oil-lubricated bearings of American Con Met have a large heat capacity and are not easy to burn to the wheel bearings. The independent airbag trailer suspension system can be universally matched to bus and tourist vehicles.

The Main Technical Parameters
Komman ModelAFD 050/055 Series Independent Air Suspension System
Suspension Height270mm
Rated Load4500～5500KG
Axle Travel170mm（+85/-85)
Brake Specifications19.5"/22.5"
Tire Model265/70 R19.5 （275/80 R22.5）
Inner and Outer Wheel CornersAFD050：50˚/39.2˚
AFD055：48˚/39˚
Front Axle Positioning Parameters（0-2）mm
Caster Angle：3.5˚±30′
Kingpin Inclination：8.5˚±30′
Camber Angle：0.5˚±20′

AFD065/070 Series Independent Air Suspension System
High rigidity double A-arm structure, wide airbag span, Low non-spring load, low dynamic load impact, two-stage steering mechanism; the airbag independent suspension system uses FAG maintenance-free bearings, suitable for low maintenance costs; can be matched with disc brakes of different manufacturers (Hande, Knorr, Sorl, Youfin, etc.), more adaptable; it can be matched with 175 outer-offset tires, and 315/80 specification tires can also be optional. This independent airbag trailer suspension system is suitable for tourist passenger vehicles.

AFD075 Series Independent Air Suspension System
High-rigidity double A-arm structure, wide airbag span, low non-spring load-bearing quality, low dynamic load impact; this airbag independent suspension can be realized according to the needs of a three-stage/2-stage steering transmission mechanism, which can be matched with disc brakes of different manufacturers (Hande, Knorr, Sorl, Youfin, etc ), more adaptable; the system adopts American Con Met integral oil-lubricated bearings, which has large heat capacity, and the wheel hub bearings are not easy to burn. It can be matched with 175 outer offset tires and 315/ With 80-size tires, the independent airbag trailer suspension system is suitable for bus and tourist passenger vehicles over 11 meters.

The Main Technical Parameters
ModelAFD065/070 Series Independent Air SuspensionAFD075 Series Independent Air Suspension
Rated Load6500~7000kg7500kg
Kingpin Inclination9.0˚+30′7.5˚±30′
camber Angle0°±20′0.5°±15′
Caster Angle3.0°±30′2.5˚±30′
Main Pin Center Distance2007mm1899mm
Rim Mounting Surface2317mm2458mm
Inner Wheel Angle44°50°
Outer Wheel Corner39.3°41°
Recommended Tires275/70R22.5295/80 R22.5
Hub BearingFAG Maintenance-free bearingsCon Met Integral Oil-Lubricated Bearing
Brake Caliper OptionHande, Knorr, Sorl, Youfin, etcHande, Knorr, Sorl, Youfin, etc

Komman Product Research and Development Capabilities
Komman has a strong R&D team and has introduced RDM, an R&D management system, and PDM, a product data management system. Based on APQP, the R&D projects are grouped and hierarchically managed, and the relevant departments are coordinated to achieve all-around real-time monitoring of the project. At the same time, it uses AUTOCAD, SOLIDWORKS, ADAMS, CATIA, and other professional system analysis software to conduct multi-dimensional analysis of products through finite element analysis, system dynamics analysis, control system analysis, and other technologies to ensure the quality of the air bag suspension wholesale design solution.

R&D Technology Center
3D design: Komman uses 3D interference analysis technology to truly simulate the positional relationship between the parts during the jump, jump, and roll of the axle, avoiding the interference of parts during the product operation, improving the design quality, and optimizing the design solution.

Finite element analysis of part structure: Through finite element analysis technology, the working stress, strain, and displacement of the designed product can be grasped, and the optimized design and lightweight design of structural parts can be carried out at the same time to improve the reliability of the product and reduce the product development cycle and development costs.

System dynamics analysis: Use ADAMS system dynamics simulation software to analyze the movement relations and dynamic forces of various parts of the system during the movement process, and optimize the system design scheme.