- How do I work with KLF or request products from you?
- Provide basic requirements such as spring size and the use of springs.
- Design and confirm drawings.
- Provide and confirm the sample (Sample production takes 3-7 working days + delivery time).
- Accept orders and receive the deposit.
- Production and inspection.
- Packing and shipment.
- How does KLF operate?
KLF is a professional manufacturer and not an agent company. Each spring is produced according to customer requirements.
- How does KLF provide customized spring and design services?
KLF selects the right size and low-cost material according to customer usage applications. Our technicians have numerous years of metal design experience, allowing them to offer CAD and 2D design drawings for reference.
- Why are KLF’s prices lower?
KLF is able to control costs by reducing labor costs and material waste rates in 3 different areas: processing experience, equipment, and a quality management system.
- What is the typical delivery period from KLF?
After confirming the proofing drawing, our production sample cycle is 3-7 working days. The delivery time of an order is determined based on the production order quantity and the transportation time. We also arrange for the production of machines and transportation modes according to customer delivery requirements.
- What is KLF’s minimum order requirement for production?
We don’t have one, as it is related to the spring number and specific requirements.
- Does KLF maintain stock of stainless steel springs?
Stainless steel springs include compression spring, torsional spring, extension spring and other types. Customers need to provide a specific size for us to determine whether or not we have the springs in stock, and if they will meet your requirements. If they do not meet your needs, we can also arrange for an urgent orders for spring production, and deliver them within the specific delivery time.
- What types of spring surface treatments does KLF recommend?
We recommend the following surface treatments:
Surface treatment Applications Galvanization Corrosion protection Chromium electroplating Visual surface treatment, rust protection (blue, yellow, black, green) Nickel plating Visual surface treatment, corrosion protection, good friction resistance Tin plating Good electrical conductivity, smooth surface Chroming Visual surface treatment, corrosion protection Copper plating Good electrical conductivity, corrosion protection Blass plating Visual surface treatment, smooth surface Gold plating Visual surface treatment, good electrical conductivity. Prevent excessive solitary light, strengthen mechanical and chemical properties Customers should choose a surface treatment based on the actual usage environment of the mechanical springs. As an example, a battery spring that requires an excellent conductivity and strong contact would work best with a tin plating. For springs used in household appliances in corrosive environments, we recommend a galvanized treatment.
- How do I know what kind of spring is the most suitable for my needs?
The mechanical springs can be customized and are available at appropriate prices according to the following table and actual usage for selecting material.
Types Standard code Mark Application (reference) General Conductive Non magnetic Heat resistance Wear resistance Corrosion resistance Carbon copper wire JIS G3521 SWB √ SWC √ High carbon steel wire JIS G3500 √ √ Stainless steel wire JIS G4313 SUS301 √ √ √ SUS304 √ √ √ SUS316 √ √ √ SUS631 JI √ √ √ Brass wire JIS H3260 C2600 W-H √ √ √ Phosphor wire JIS H3270 C101 W-H √ √ √