David Smith from Russiawe cooperate with Norvee more than 10 years, we order the tobacco pusher springs and they can provide very good quality, in time delivery.
William from AustraliaNorvee can provide good quality gas spring, we order from them for many years and have very good cooperation.
Bill from USAwe order the music material extension springs from Norvee since 2005, there is never quality problem and we order from them all the time till now.
Constant / Variable Force Spiral Coil Spring For Retractor ISO 9001 Approved
|Material||Stainless Steel 301||Name||Heavy Duty Extension Springs|
|Force||2N To 30N||Length||100mm To 1200mm|
tape measure spring,
stainless steel coil springs
customized carbon steel spiral coil springs for retractor with ISO9001
|Material||Stainless steel,carbon steel,62Si2Mn,60Si2Mn,65Mn,SK4,SK5|
|Load type||Constant and variable force|
|Thickness of material||0.08mm~ 1.8mm|
|Wire diameter||0.01mm~ 10mm|
|Inside diameter||As your request|
|Outside diameter||1 mm and above.|
|Length||Free length as you need|
|Finish||Zinc plated, nickel plated, black coating,also can be done as customers request|
|Application||Furniture,industrial equipment,electronic devices,etc|
|Equipments||Advanced CNC computer spring machines with high precision and efficiency|
|Technology||Experienced engineers ,technicians and Skilled Workers|
|Advantage||High quality, competitive prices,automatic production equipment, , safe package and fast delivery|
Applications for power springs
· Tobacco shelf pusher
· seatbelt retractors
· tape measures
· retractable dog leads
· electrical cord retractors
· hose reels
· wind-up toys
· pull start on small gas-powered engines
· tool balancers
Motor spring for circular motion in max 10 and 20 coils, except pre-tension as specified below. The spring is usually positioned in a housing with the outer hook located around a pin or in a slot on the housing with the smallest internal diameter as specified below. It can also be placed in a larger housing, but with an associated decrease in force.
The clock spring (also referred to as a flat torsion spring) is designed to produce a torsional force (circular movement). In contrast to the tightly coiled motor spring on the previous page, the clock spring has open coils that, when mounted correctly, reduces fricton to zero. However, torque capacity is reduced as a result. The standard range is made from rounded edge stainless steel, which affords a better fatigue life.
Constant force spring
The constant force spring consists of strip material, which has been shaped and pre-tensioned into a tightly wound roll. The spring is used in a linear movement and produces almost constant force throughout its deflection. Constant force springs can be fitted in a number of ways and extended partly or completely. There is practically no limit on extension speed and acceleration.
Pre-pressed or conventional power springs
Our capabilities of power springs range from 0.002 inch to 0.125 inch material thickness and from 0.030 inch to 3 inch material widths. Power springs can be made using pre-stressed (back wound) or conventional (from flat) methods. Pre-stressed power springs are spooled to a special free diameter and back wound into a housing or keeper, while conventional wound springs are manufactured and wound in the flat state. The advantages of pre-stressed springs are that it allows maximized torque from a specific material. Conventional wound power springs, however, offer increased cycle life.
Why Choose us?
1. We can provide reasonable price ,fast shipping,timely delivery ,continue developing advancing and innovation.
2. The customers can get high quality products , preferential price , and good service from our company.
3. Our company sincerely welcomes customers from both home and abroad to contact with us.