Heavy-Duty 8-Blade 36" Semi-Elliptical Leaf Spring (2,000kg Pair Capacity)

The Heavy-Duty 8-Blade 36" Semi-Elliptical Leaf Spring is an extended-span trailer suspension component engineered to provide high payload support, progressive road damping, and superior towing compliance for commercial freight trailers, touring caravans, heavy utility haulers, and agricultural platforms. Rated for a combined axle capacity of 2,000 kg per pair (1,000 kg per individual spring assembly), this 8-blade assembly utilizes an elongated 36-inch (~914 mm) mounting span to deliver a smoother, less jarring ride compared to shorter leaf packs while carrying substantial commercial loads.

Constructed from eight graduated leaves of automotive-grade high-tensile spring steel, the elongated arc distributes vertical shock and dynamic axle loads across a broader section of the trailer chassis. This setup significantly reduces high-frequency road vibrations, controls rebound bounce, and provides progressive resistance against bottoming out over corrugated gravel tracks, potholes, and highway expansion joints. Designed in a standard eye-and-slipper layout, the rolled forward eye anchors securely into the front chassis bracket for accurate axle tracking, while the rear slipper tail slides smoothly inside the rear hanger channel to allow unrestricted longitudinal travel under load.

Key Features & Benefits:

• High-Capacity 2,000kg Combined Rating (Per Pair): Delivers dependable load-bearing capability of up to 1,000 kg per individual spring, making it ideal for medium-to-heavy commercial freight trailers, equipment haulers, and tandem-axle chassis.

• Extended 36-Inch Span (~914 mm): Longer spring length provides increased suspension travel and deeper deflection compared to standard 27" springs, smoothing out roadway shock to protect chassis welds and sensitive cargo.

• 8-Blade Graduated Multi-Leaf Stack: Dense multi-layer construction progressively absorbs vertical road impacts and cyclic dynamic shock, preventing structural stress fatigue in trailer crossmembers and axle beams.

• Controlled Articulation & Reduced Bounce: Elongated spring arc minimizes trailer hopping and vibration when running empty or lightly loaded, improving high-speed tracking and stability behind the tow vehicle.

• High-Tensile Quenched & Tempered Spring Steel: Oil-quenched and tempered to resist fatigue failure, inter-leaf cracking, and loss of arch height over long-term, high-mileage use.

• Standard Eye-to-Slipper Orientation: Front rolled and bushed spring eye mounts directly into the forward chassis hanger for positive trailing-arm geometry, while the rear slipper tail glides freely inside the slipper channel to allow unrestricted longitudinal expansion during compression.

• Superior Roll & Tracking Stability: Multi-leaf architecture provides balanced lateral rigidity to control trailer body roll, dynamic swaying, and shifting in high-center-of-gravity loads.

Ideal Applications:

• Commercial & Freight Trailers: Heavy running gear for single- and tandem-axle goods trailers, commercial flatbeds, and enclosed transport haulers.

• Touring Caravans & Large Campers: Extended-span suspension delivering a compliant, stable ride that cushions interior cabinetry, appliances, and onboard fittings against prolonged road vibration.

• Heavy Utility & Plant Trailers: Suspension for machinery carriers, contractor flatbeds, and equipment haulers.

• Livestock Transporters & Horseboxes: Running gear built to support dynamic animal movement while reducing body roll and trailer sway over rough roads.

• Agricultural Implements & Farm Wagons: Durable running gear for field service carts, bulk wagons, and farm transport trailers operating over uneven terrain.

Product Specifications:

• Product Name: 8 Blade Spring 36"

• Product Category: Suspension / Leaf Springs

• Spring Type: Heavy-Duty Semi-Elliptical Leaf Spring (Eye-and-Slipper Design)

• Number of Blades: 8 Blades

• Spring Length (Mounting Span): 36 Inches (~914 mm)

• Load Rating: 2,000 kg per Pair (1,000 kg per Individual Spring Assembly)

• Installation Orientation: Front Spring Eye mounts towards the front of the trailer

• Material: Quenched & Tempered High-Tensile Automotive Spring Steel

• Application Compatibility: Commercial Trailers, Caravans, Horseboxes, Utility & Agricultural Vehicles

• Condition: Brand New Heavy-Duty Commercial Vehicle Hardware