Leaf & Parabolic Spring for trucks, trailers, mobile homes in the US, boat trailer springs, club carts, cars, jeeps(4×4 application) and cabin springs are some of the needs our springs serve. APIL can supply galvanized springs, powder coated, zinc rich paint (salt spray, with 500 hours) and springs for all special requirements. The demand for life cycle can be met with special steel or processes. This can vary from 100,000 Cycles to B-10 Values as specified by the customer.
Spring & Parabolic Leaves Material Grades
Specifications of Steel used
|EN 45||51 Si7||SUP 6||9260/9255|
|EN 45A||55 Si7/65 Si7||SUP 7||9260|
|EN 47||50 CrV4||SUP 10||6150|
|EN 48||50 Cr3||SUP 11/11A||5150|
Spring Span Up to 2500 mm
Camber Up to 250 mm
Weight 2.0 Kgs-350 Kgs
Assembly 100% shot peening of leaves. stress peening if required (as per customer’s specifications)
ALL FITMENTS Eye Bushes(bronze, stel or rubber) Clamp, Clamp Bolts, Centre Bolts, Nuts & Rivets (as per customer’s specifications).
Inter leaf lubrication Grease Graphite or Graphite Coating.
Surface Coating Red Oxide Black Paint / Zinc Rich Primer/ Galvanised Spring – Salt Spray Test from 150 to 600 hours as per customer requirements
Protection Painting & Baking
Eye size inner Diameter 50mm and above
Types of main + 2nd leaf Normal or Berlin Eye
Other leaf ends Parabolic, Plain, Tapered or Taper-rolled and Trimmed
Type of Finishes Zinc Rich Primer, Volvoline Coating, Enamel Paint or Galvanised