Heavy-Duty 8-Blade 27" Semi-Elliptical Leaf Spring (3,500kg Pair Capacity / 50x8mm)

The Heavy-Duty 8-Blade 27" Semi-Elliptical Leaf Spring (50x8mm) is an extra-heavy-duty trailer suspension component engineered to provide maximum load-bearing support, structural stability, and controlled shock damping for commercial transport trailers, agricultural implements, industrial plant haulers, and heavy-duty caravans. Featuring an ultra-robust 50 mm wide by 8 mm thick blade profile across an 8-blade configuration, this high-capacity spring set is rated for a massive combined load capacity of 3,500 kg per pair, delivering the strength required for severe axle loads and punishing commercial duty cycles.

Built with a standard 27-inch (~685 mm) eye-to-slipper mounting span, the spring assembly uses premium oil-quenched and tempered high-tensile spring steel to resist fatigue, permanent sag, and blade cracking under heavy shock impacts. The wide 50 mm footprint and heavy-gauge 8 mm individual leaves deliver exceptional lateral stiffness, minimizing body roll, sway, and dynamic load shifting when navigating uneven farm tracks, gravel access roads, or cornering at highway speeds.

Key Features & Benefits:

• High-Capacity 3,500kg Load Rating (Per Pair): Engineered specifically for heavy commercial, agricultural, and industrial hauling, supporting up to 1,750 kg per individual spring unit.

• Heavy-Duty 50x8mm Blade Profile: Features wide 50 mm leaves with 8 mm individual blade thickness, providing superior resistance against bending, leaf splaying, and bottoming out compared to lighter narrow-blade springs.

• 8-Blade Graduated Stack: Multi-leaf design distributes vertical shock loads and high-tonnage cargo weight progressively across the entire spring span to protect axle beams and chassis mountings.

• Superior Roll & Sway Resistance: The wide 50 mm blade construction maximizes torsional and lateral rigidity, significantly reducing trailer sway, trailer lean, and shifting in top-heavy loads.

• Quenched & Tempered Spring Steel: Manufactured from automotive-grade, high-tensile alloy spring steel to maintain arch height and spring temper over extended high-mileage operation.

• Industry-Standard 27-Inch Span: Standard 27" length ensures broad compatibility with heavy-duty commercial hanger brackets, slipper pads, and mounting hardware kits.

• Clear Directional Fitment: Standard front eye mounting facilitates correct chassis alignment and reliable trailing-arm suspension geometry.

Ideal Applications:

• Heavy Commercial & Plant Trailers: Suspension for high-capacity plant trailers, skid-steer haulers, mini-excavator carriers, and multi-axle industrial flatbeds.

• Agricultural Implements & Farm Wagons: Heavy-duty running gear for grain wagons, liquid fertilizer bowsers, heavy feed trailers, and mobile field machinery.

• Commercial Livestock Transporters: Exterior suspension built to handle shifting animal loads while controlling chassis roll on unpaved rural tracks.

• Industrial & Mining Service Trailers: Extreme-duty suspension for mobile generator skids, diesel bowsers, lighting towers, and site compressors.

• Heavy Caravans & Overland Trailers: Heavy-payload suspension builds designed for demanding, off-grid expedition setups.

Product Specifications:

• Product Name: 8 Blade Spring 27" – 50x8 (3,500Kg)

• 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): 27 Inches (~685 mm)

• Blade Dimensions: 50 mm Width x 8 mm Blade Thickness

• Load Rating: 3,500 kg per Pair (1,750 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, Agricultural Machinery, Caravans, Plant & Industrial Equipment

• Condition: Brand New Heavy-Duty Commercial Vehicle Hardware