How to Prepare Your Drawings for a Fast, Accurate Spring Quote

A quote is only as good as the information behind it. At Seyunda, the difference between a same-week quote and a two-week back-and-forth usually comes down to five or six details missing from the first drawing we receive. Whether you're sourcing custom springs, wire forms, and clips, or evaluating CNC spring machinery to scale up your own production line, here's what to send us so we can get you an accurate number fast.

IF YOU'RE SOURCING CUSTOM SPRINGS, WIRE FORMS, OR CLIPS

Send us a drawing or sample, and include:

• Material. Carbon steel, music wire, stainless steel (304/316/631), oil-tempered steel, phosphor bronze, or brass — the material drives cost, lead time, and whether it meets your application's corrosion or conductivity requirements.
• Dimensions and tolerances. Wire diameter, free length, outer/inner diameter, number of coils, and the tolerance band you need. Tighter tolerances are achievable, but they affect tooling and price — tell us upfront rather than after the first sample.
• Load and performance requirements. Spring rate, working load, deflection range, or torque (for torsion springs). If the part is going into a high-cycle or high-vibration environment, say so — it changes the material and heat-treatment recommendation.
• Surface treatment. Zinc, nickel, chrome, or tin plating; passivation; black oxide; phosphate; Geomet/DACROMET; or electro-polishing. Each has different cost and corrosion-resistance profiles.
• Quantity and forecast volume. A one-time prototype order and a 50,000-unit annual run get quoted differently. Sharing your forecast, even roughly, helps us price it right the first time.
• End application and industry. Automotive, aerospace, medical, electronics, or general industrial — this tells us which certifications and inspection standards apply (we hold ISO 9001, IATF 16949, and PPAP III capability).

IF YOU'RE EVALUATING CNC SPRING MACHINERY FOR IN-HOUSE PRODUCTION

If your goal is to bring spring or wire form production in-house — or add capacity to an existing line — the drawing conversation looks a little different. Share:

• Wire diameter range you need to run. Our CNC compression coilers cover fine to ultra-fine gauges down to 0.1mm, while our large coilers (SHA series) handle 1.2–30.0mm. Knowing your range narrows down the right machine platform immediately.
• Spring or wire form types. Compression, tension, torsion, wave springs, or complex 2D/3D wire forms. If you need to produce multiple types, our versatile formers (CSM and ZX series) run several on one platform — worth flagging if floor space or capital budget is a constraint.
• Target production volume and cycle time. How many parts per shift or per month are you aiming for? This affects machine sizing and whether auto-decoiler or tooling add-ons make sense.
• Current bottleneck. Are you replacing manual/mechanical equipment, adding capacity alongside existing machines, or starting a spring line from scratch? If you're retrofitting an older line, let us know what you're running now — it helps us recommend the right upgrade path and estimate ROI.
• Finishing requirements. If your process needs stress relieving or heat treatment in-house, our industrial ovens (box type or RJC conveyor) can be quoted alongside the coiler.

WHY THIS MATTERS

A complete first drawing means our engineering team can quote accurately without a round of clarifying questions — which typically cuts quote turnaround from weeks to days. It also means the number you get is the number that holds once the order is placed, with no surprises on tooling costs or lead time once production starts.

Published by the Seyunda Team · 2026