Professional Factory Supply Stainless Steel Compression Spring High Quality 3mm Coil Compression Spring for Sale

Product DescriptionWhat is Compression spring?Compression Springs are open-coil helical springs wound or created to oppose compression along the axis of wind. Helical Compression is the most typical steel springtime arrangement. These coil springs can function individually, though commonly assembled over a guide rod or equipped inside an opening.Typical Compression Spring Design TermsAccording to the Spring Manufacturers Institute Handbook of Spring Design, commonly used compression spring terminology includes the following:Wire diameter (d)Outside Diameter (O.D)Inside Diameter (ID)D coil diameter =Outside Diameter. (O.D. + I.D.)/2 or O.D. - d Free Length = The total length of a compression spring when it is unloaded.Pitch (P )= the distance between the wire centers in adjacent active coils. It is best practice to specify the number of active coils rather than the pitch.Wire Diameter0.1 to 18mmMaterial Stainless steel, Carbon steel,music wire/piano wire,Beryllium copper, Brass, Alloy steel,etcSurface TreatmentZinc-plated, nickel-plated, chrome-plated, gold-plated, Imitation gold-plated, Tin, Powder coating, Oxide black or customized, etcMain ProductsCompression Spring, Extension Spring, Torsion Spring, Wire Forming Spring, Stamping Parts and so onPacking Inner packing with plastic bags, and then carton boxes for the outer packing, and then the wooden or plastic pallets for requestProduce EquipmentAdvanced CNC Spring machinery; Advanced grinding and short blasting machinery; Precise tensile strength testers, compression testers, endurance testers, magnetic powder flaw detectorsTest EquipmentProjectors; Digital hardness tester; Digital torsion strength tester; Digital compression and torsion strength tester; Elasticity tester; Life tester; Salt spray test machine etc.Compression Spring MaterialsZihuoli Spring custom compression springs from a variety of materials. Music wire, hard drawn, stainless steel (type 302, type 316), oil tempered, chrome silicon, and phosphor bronze are the most common material types for compression springs. We also make compression springs out of more exotic materials like Inconel, Monel, Beryllium Copper, and others.In order to provide our customers with the shortest lead times possible, we stock several of these material types in various diameters.Compression spring materials that are commonly used include:•      Carbon Steel•      Stainless steels•      Alloy steel•      Copper Base Alloy•      Nickel Base Alloy•      Cobalt-Nickel•      TitaniumProductionOur Capability for Different Compression Spring Body ShapesThere are four different body designs for compression springs.Straight cylindrical compression springConical or tapered compression springs, Barrel compression springs, Hourglass compression springs,Company ProfileOur company is a subsidiary of Farview International specializing in the production of various hot roll and cold roll springs. It was established in 2008. The company is located in Cangzhou City, Hebei Province, only 150 kilometers away from Tianjin Port. Hot roll coil springs include various large coil springs, which are widely used in crushers, vibrating screens, casting machinery, coking equipment, metallurgical equipment, construction machinery, valves, etc.; cold roll springs include various tension springs, compression springs, tower springs, special-shaped springs and various other customized products are widely used in auto parts, electronic and electrical accessories, mechanical equipment, etc.Our company adopts advanced manufacturing equipment and manufacturing process. The hot roll coil process includes cutting, heating, hot coiling, quenching, tempering, flatting ends, grinding springs, shot blasting, pressure and hardness testing, laser marking, painting, etc; the cold rolling equipment adopts the most advanced 14-axis CNC automatic spring machine.The company has a hot roll coil spring production line, dozens of CNC automatic spring machines and various testing equipment. Farview Spring has passed the ISO9001 quality system certification since 2008.Integrity-based, pursuit of excellence is our business philosophy, and attentive service is our service concept. We are willing to be win-win and prosperous with all partners. Wish Farview Spring makes the world more flexible!   FAQ1.Why you choose us?We have 14 years experiences in producing springs. We have our own factory, warehouse, machines, test equipment, engineers, rigorous QC and good service.  2.Do you offer custom service?Yes, it's our job, send us your specification or drawings, and we will make you perfect products. Or tell us your idea forgetting a design from us.                                                                            3. Could I ask for samples before the bulk production? Why not, we all concern the quality, and it's the way to get rid of getting poor quality.                                                            4.What is your min order quantity?Normally, our minimu