Capability
Stress relieving and end grinding
Two in-house steps after the coil: the furnace, and the grinder when the drawing asks for flat ends. We do not plate here.
What it is
After coiling, residual stress sits in the wire. We take the batch through our stress-relieving furnace. That is a heat to relax the coil, not a quench-and-temper of the steel.
End grinding flattens the last coil of a compression spring so it stands square. We have the machine. We use it when the drawing says closed-and-ground or open-and-ground.
How it works
Coil and form → stress-relieve → grind ends if specified → finish through partners if specified → pack and dispatch ex-works Talawade.
Plating, passivation and other coatings leave the building.
When to specify a grind
When the spring must sit flat and share the load around the last coil. Skip it on very fine wire unless you have checked with us — 0.40 mm is the bottom of the range, and a grind there is often more trouble than it is worth.
Limits
Wire Ø 0.40–2.50 mm. No in-house plating. No lab numbers attached to the furnace cycle until we publish them.
Questions
Do you stress-relieve every batch?
Do you grind every compression spring?
Request for quotation
Send your drawing or sample. Get a quote within 24 hours.
Tell us the spring type, quantity and what it has to do. Our usual minimum order is 5,000–10,000 pcs; smaller development runs are charged.