AC Propulsion Off-Road Mono Tube Shock Absorbers for Tank 300 / Tank 500 / Haval H9 | K-MAN Technology Suspension

Product Description

Tank 300 shock absorber

Upgrade your off-road performance with AC Propulsion Shock Absorbers, developed under the same engineering standards as K-MAN Suspension. Designed for Tank 300, Tank 300 HEV, Tank 500, and Haval H9, this system delivers balanced comfort, control, and durability across all terrains.
These monotube shocks feature a factory preset 1.5-inch lift, providing improved ground clearance and a more aggressive off-road stance. If preferred, a non-lift version is also available to meet your specific driving needs.
Built with the NVS (Non-linear Valve System) — an exclusive technology from K-MAN Group, the shocks automatically adjust damping force according to piston speed. This ensures optimal balance between comfort and handling performance, without the need for manual adjustment.
With precision engineering, durable materials, and proven reliability, AC Propulsion brings advanced suspension technology to off-road enthusiasts worldwide — combining performance, innovation, and value in every ride.

Monotube Design
Compared with twin-tube shock absorbers, the monotube structure uses a single working chamber, allowing faster heat dissipation and reducing the risk of overheating. Ideal for continuous high-load off-road conditions.
Gas-Oil Separation
A floating piston completely separates gas and oil to prevent foaming and damping fade, ensuring stable and consistent performance during long-term operation.
Flexible Installation
Can be installed in an inverted position, providing more layout flexibility and reducing unsprung weight — improving suspension control and ride comfort.
Large-Diameter Piston and Piston Rod
The larger piston enhances anti-roll capability and cornering stability, while the thicker piston rod improves bending resistance and safety under extreme driving conditions.

Reservoir Tube
The inner wall is honed for precision and surface smoothness. A cross-hatched texture retains oil film, reduces wear, and extends the service life of pistons and seals.
Sealing System
Uses NOK (Japan) oil seals for reliability and a dual dust-seal design to prevent mud, sand, and debris intrusion in harsh environments.
Piston Rod
Features micro-crack hard chrome plating (40–50 μm, hardness > HV1000). The dense network of over 800 micro-cracks/cm² helps retain oil film, reduces friction, and prolongs component life.
Lightweight Design
The mounting base and spring seat are made from high-strength aluminum-magnesium alloy, reducing weight while maintaining rigidity for better suspension response.
NVS Non-Linear Valve System
Automatically adjusts damping according to piston movement speed, providing adaptive performance that balances comfort and control.

Advanced R&D Team: Our engineers bring proven racing-grade suspension technologies into civilian applications, ensuring high performance and reliability in every product.
World-Class Laboratory Equipment: Equipped with cutting-edge testing and development facilities that meet global standards, keeping us at the forefront of suspension innovation.
Global Layout: Headquartered in Shanghai, with a R&D and manufacturing base in Nantong (Jiangsu), and R&D centers in Beijing, the UK, the USA (under construction), and Saudi Arabia (under construction).
Team: Over 200 employees, including more than 60 senior engineers and international R&D specialists.
Manufacturing Capability: Covers multiple vehicle brands and models, ensuring precise customization and consistent production quality.
Industry Standard Co-Developer: Jointly established the national industry standard for nitrogen shock absorbers and related matching standards with the China Automotive Technology and Research Center (CATARC).
OEM Collaboration: Partnered with major vehicle manufacturers to co-develop matching suspension systems for production vehicles.

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