Hebei Hankai rotary oil seals
One of the primary factors influencing the price of oil seals is the cost of raw materials. Oil seals are typically made from a combination of rubber, plastics, and metals, all of which have their own price volatility. For instance, the cost of synthetic rubber can change dramatically based on the price of crude oil, as it is a petroleum-based product. When oil prices rise, manufacturers may face higher production costs, which they often pass on to consumers. Furthermore, geopolitical tensions or natural disasters can disrupt the supply chain, leading to increased raw material costs and, subsequently, higher oil seal prices.


Jedním z hlavních důvodů, proč se výrobci rozhodují pro zakázkové točivé pružiny, je přesnost. Standardní pružiny nemusí vždy vyhovovat specifickým nárokům daného projektu, a proto zakázková výroba umožňuje zajistit, že každý kus bude perfektně odpovídat potřebám. Tato přesnost je obzvlášť důležitá v oblastech, jako je automobilový průmysl, strojírenství, elektronika a další technologie, kde jakákoli odchylka může mít za následek selhání celého zařízení.
custom torsion springs

EXTENSION SPRINGS are found in garage door assemblies, vise-grip pliers, and carburetors as well as thousands of other places. When they are attached at both endsand when the components they are attached to moves apart, the spring tries to bring them together again.
Extension Springs are wound with initial tension known asstored energy which holds the coils together and offers resistance to a pulling force. Springs can have many different styles of ends, the most commontypes of loops and hooks are Machine and Crossover. They can be closed (loops) or open (hooks).
Machine End: Wire comes directly off the body, then forming a circle across the center
Crossover End: Wire comes across the center of the spring
Double Loop: end consisting of two coils with no gap between the coils and the end of the wire
TORSION SPRINGS can be found on door hinges, door locks and clipboards as well as thousands of other places. When the ends of the torsion spring are attached tothe component, and when these components rotate around the center of the spring in the direction that winds the coil, the spring tries to push them back to theiroriginal position. Torsion springs offer resistance to externally applied torque as the ends are rotated in angular deflection. Commonly used over an arbor or mandrelfor support. Torsion springs are subjected to bending stress rather than torsional. Normally close wound and are left hand or right hand wound.Torsion springs are selected based on the Degree of Deflection required: usually 90, 180, 270 or 360° from the spring body.
Length of Leg: the length of the torsion spring leg is measured from the center of the body to the end of the leg or tip
Direction of Wind: torsion springs should be used in the direction that winds the coil