Shaanxi Yisirui Auto Parts Co., Ltd. is one of the most credible manufacturers and suppliers of suspension seat base in China, also supports customized service. Welcome to wholesale durable suspension seat base in stock here and get pricelist from our factory. Quality products and low price are available.
Heavy-Duty Comfort & Control: The YSR-PJ011 Mechanical Suspension Seat Base
The YSR-PJ011 Suspension Seat Base is engineered to redefine operator comfort in demanding environments. Combining 360° rotation with integrated sliding rails, this Mechanical Suspension base is specifically designed for trucks, tractors, forklifts, and agricultural machinery. It effectively isolates the operator from road shocks and vibrations, dramatically improving comfort and reducing fatigue on rough or uneven terrain. Featuring manual weight adjustment (50-120 kg range) and height adjustment (70 mm stroke), it can be adapted to various vehicle models through custom mounting holes. This robust truck seat base utilizes a precision mechanical structure and hydraulic damping system to achieve active dynamic balance, simulating the body's natural movement to support posture and health during long operating hours.
Technical Specifications
| Feature | Specification |
| Product Model | YSR-PJ011 Mechanical Suspension base |
| Rotation | 360° Smooth Rotation |
| Installation Dimensions (Footprint) | 325mm x 280mm / 325mm x 295.5mm (Custom hole patterns available) |
| Maximum Load Capacity | Up to 200 kg (440 lbs) |
| Weight Adjustment Range | 50 - 120 kg (110 - 265 lbs) |
| Height Adjustment Stroke | 70 mm |
| Primary Material | High-Strength Steel |
| Surface Finish | Anti-Corrosion Powder Coating |
| Mounting | Bolt-On Design, Hardware Included |
Design Details & Adjustability
1. Customizable Mounting & Universal Fit
Our semi truck low profile seat base offers flexible installation. The mounting hole positions can be customized to fit your specific vehicle floor plan. Consult our sales team to confirm compatibility for a seamless installation.
2. Easy Weight Adjustment
The integrated mechanical suspension is easily tuned to the operator's weight via a simple knob:
For lighter operators: Rotate the knob counter-clockwise to soften the suspension.
For heavier operators: Rotate the knob clockwise to firm up the suspension.
3. Robust Internal Construction
- 360° Rotating Base: A precision bearing system allows for smooth, full rotation, enhancing accessibility and convenience in confined cabs.
- Double-Locking Slide Rail: Integrated sliding rails provide fore/aft adjustment and feature a secure double-lock mechanism for safety during operation.
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| Customizable Hole Installation | Intuitive Weight Adjustment |
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| 360° Rotating Base Mechanism | Double-Locking Slide Rail |
Key Features & Product Highlights
Shock Absorption & Comfort: The core Mechanical Suspension system actively absorbs bumps and vibrations from rough terrain, providing a significantly smoother ride and reducing operator fatigue during long shifts.
Fully Adjustable & Versatile: This truck seat base combines 360° rotation with sliding rail adjustment, offering unparalleled flexibility for positioning and access within the vehicle cabin.
Heavy-Duty Construction: Built from high-strength steel with a durable powder-coated finish, it is designed to withstand the rigors of daily use in industrial and commercial applications, supporting up to 200 kg.
Universal Application: With a universal bolt pattern and support for OEM customization (including color and branding), this base is an ideal upgrade or replacement part for a wide range of vehicles and modified seats.
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Packaging, Shipping & Delivery Information
| Item | Details |
|---|---|
| Standard Packaging | Each Suspension Seat Base is securely packed in a reinforced cardboard carton with protective foam. Bulk orders are palletized for safe sea freight. |
| Package Dimensions & Weight | Carton size is optimized to protect the product. Approximate Gross Weight per unit: ~15 kg (includes packaging). |
| Shipping Methods | Express Courier (DHL, FedEx), Air Freight, Sea Freight (FCL/LCL). We select the most efficient port for your destination. |
| Lead Time | Samples: 5-7 days. Bulk Production Orders: 15-25 working days after order confirmation, depending on quantity and customization. |
Simple Installation Guide
- Prepare the Area: Ensure the vehicle floor mounting points are clean and free of debris.
- Position the Base: Place the truck seat base onto the vehicle's floor, aligning it with the mounting holes.
- Secure the Base: Using the provided high-grade hardware, bolt the base securely to the vehicle floor.
- Attach the Seat: Mount your seat onto the top plate of the suspension base and secure it.
- Adjust & Test: Set the weight adjustment knob for the operator, test the sliding rail, and ensure the 360° rotation functions smoothly.
Primary Applications
- Agricultural Machinery: Tractors and combines, where it reduces whole-body vibration and operator fatigue during long workdays.
- Construction & Earth-Moving Equipment: Excavators, loaders, and bulldozers operating on uneven ground, protecting operator health.
- Material Handling & Industrial Vehicles: Forklifts and stackers, improving stability and comfort to increase productivity.
- Commercial Trucking: Ideal as a semi truck low profile seat base upgrade, enhancing driver comfort and reducing fatigue on long-haul routes.
In all these applications, the YSR-PJ011 Mechanical Suspension base extends equipment usability, improves safety, and enhances operator well-being through superior shock absorption.
Frequently Asked Questions (FAQ)
Q: Is this suspension base compatible with all seat types?
A: The YSR-PJ011 is designed as a universal Suspension Seat Base with a standard top mounting interface. Please verify your seat's bottom mounting pattern with our team to ensure a perfect fit.
Q: Can I install this base myself?
A: Yes. The installation is straightforward with basic tools. We provide a clear guide, and our technical team is available for support if needed.
Q: What is the advantage of a mechanical suspension over a fixed base?
A: A mechanical semi truck low profile seat base actively isolates the driver from road vibrations, drastically reducing back and body fatigue, improving comfort, and potentially enhancing long-term health and driving safety.

Upgrade Operator Comfort & Productivity
A high-quality Suspension Seat Base is not a luxury; it's an essential investment in operator health, safety, and efficiency. By damping harmful vibrations and providing ergonomic adjustability, the YSR-PJ011 directly contributes to reduced downtime and improved performance.
Contact our expert team today to discuss how this durable truck seat base can be integrated into your fleet or product line.
Get in Touch:
Tel: +86-029-81136503
Phone/WeChat: +86-18992819914 / +86-13991337062
E-mail: sales@ysrseats.com
WhatsApp: +86 18992819914
Choose YSR Seating for robust, reliable components and professional partnership.
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