5-Blade 27" Semi-Elliptical Leaf Spring (950kg Pair Capacity)

The 5-Blade 27" Semi-Elliptical Leaf Spring is a trailer suspension component engineered to provide reliable payload support, progressive road damping, and consistent axle tracking for light commercial trailers, camping haulers, touring caravans, and general utility trailers. Rated for an axle capacity of 950 kg per pair (475 kg per individual spring assembly), this 5-blade spring stack utilizes an industry-standard 27-inch (~685 mm) mounting span to deliver dependable stability, high roll resistance, and controlled ride dynamics across both paved highways and rough gravel routes.

Constructed from oil-quenched and tempered high-tensile automotive spring steel, the 5-blade graduated configuration absorbs vertical road shock and dynamic oscillations while preventing sudden bottoming-out under moderate cargo loads. Built in a classic eye-and-slipper layout, the rolled forward eye anchors securely into the front chassis bracket for positive trailing-arm axle geometry, while the rear slipper tail glides freely inside the slipper channel to allow unrestricted longitudinal travel under compression.

Key Features & Benefits:

• Calibrated 950kg Combined Capacity (Per Pair): Optimized for single-axle light-to-medium utility trailers, unbraked/braked goods haulers, and lightweight caravans, supporting up to 475 kg per individual spring assembly.

• 5-Blade Graduated Multi-Leaf Stack: Multi-layer construction progressively absorbs vertical road impacts and vibrations, protecting chassis crossmembers, welds, and delicate cargo from stress fatigue.

• Industry-Standard 27-Inch Span (~685 mm): Standard dimensions ensure drop-in compatibility with commercial slipper spring chassis hangers and standard axle tie-down hardware.

• Controlled Articulation & Reduced Rebound: Eliminates harsh empty-trailer skating and excessive bouncing while maintaining firm, stable tracking under full payload.

• High-Tensile Quenched & Tempered Spring Steel: Heat-treated automotive spring steel provides fatigue resistance, structural elasticity, and long-term retention of arch camber under repeated cyclic loading.

• Standard Eye-to-Slipper Orientation: Front rolled and bushed eye anchors securely into the forward chassis hanger for accurate axle tracking, while the rear slipper tail expands freely inside the rear slipper guide.

• Lateral Stability & Roll Control: Multi-blade profile provides rigidity against lateral twisting forces, reducing trailer body roll and sway during high-speed cornering or crosswinds.

Ideal Applications:

• Commercial & Utility Trailers: Suspension for single-axle box trailers, contractor carts, equipment haulers, and general commercial platforms.

• Touring Caravans & Camping Trailers: Running gear engineered to cushion interior joinery, camping equipment, and appliances from road vibration.

• Luggage & Cargo Haulers: Reliable suspension for enclosed luggage haulers, courier trailers, and municipal runabouts.

• Agricultural Implements & Farm Utility Carts: Running gear for field runabouts, mobile fuel bowsers, and farm service trailers operating over unpaved farm terrain.

Product Specifications:

• Product Name: 5 Blade Spring 27"

• Product Category: Suspension / Leaf Springs

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

• Number of Blades: 5 Blades

• Spring Length (Mounting Span): 27 Inches (~685 mm)

• Load Rating: 950 kg per Pair (475 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: Trailers, Caravans, Campers, Utility & Agricultural Vehicles

• Condition: Brand New Commercial Vehicle Hardware