Forming the spring
To form the spring, the steel whire is summited to a special process for which the molecular structure of the steel is transformed, loosing certain original characteristics. The result is a spring with a perfect optical appearance but still incomplete in it's function, so it needs lasting dynamics and elasticity.
Tempering the spring
To restore the spring's maximum dynamic and power, it's essential to temper it after its formation. To do this it is heated by electromagnetic or a high temperatured boiler causing the steel to regain its molecular structure and total initial functionality. That's when the spring is able to provide the high demands of a mattress, because after the heat-tempering it gaines dynamic and permanent elasticity.
Quality of the spring
Schramm only uses springs that have been thermaly heat-tempered in boilers for all its matresses and bases so that is the only process that guaratees that the springs will keep their potential, dynamics and long lasting shape. During the tempering, the schramm springs are parallely subjected to a process of demagnetization.
Quality of finishes
Schramm is the only european manufacterer that still works with pocket spring matresses hand made. But ofcourse, this method is more costly and complicated... but it's essential for quality reasons. Now a days the coated springs are made industrally, but if the springs have been heat-tempered according to the law of this trade, they can't be worked on in this method.
Respecting the value of it's quality, Schramm only uses heat-tempered springs, and this means that the matresses with pocket springs will allways need the handcrafted finishes.