ODM Passivation Long Compression Springs 12 Inch For Automation Equipment

We specialize in manufacturing industrial compression springs for machinery, automation equipment, tools, and engineering applications. Our springs are designed to provide stable force output and long-term reliability under continuous operation. By combining advanced manufacturing technology with strict inspection procedures, we ensure every compression spring meets international quality standards and customer expectations.

Technical parameters of cylindrical spiral compression spring

To customize the compression spring, you need to provide the following necessary parameter information:
Wire diameter d: mm	(Note: the diameter of the spring wire)
Outer diameter D2: mm	(Note: the diameter of the outer circle of the spring)
Length L0: mm	(Note: the free height of the spring)
Number of circles Na: circle	(Note: the total number of turns of the spring)
For customized compression springs, you also need to provide the following technical requirements:
turn around:	(Description: Left-handed Right-handed)
Material requirements:	(Such as: stainless steel wire SUS, carbon steel wire SWC, piano wire SWP, copper wire... etc.)
Surface treatment:	(Description: blackening/galvanizing/nickel plating/chrome plating/baking paint/powder spraying/electrophoresis/shot peening/dacromet/electrolytic polishing...etc.)
End form:	(Explanation: Tighten Grind Tightly polish)
Strength requirements:	(Note: Elastic performance, other technical requirements, etc.)

Spring end characteristics

Characteristic	Parameter
Structural Features	Cylindrical
	Hourglass
	Shrink both ends
	Fixed pitch
	Conical
	Closed at both ends
	The ends are flat
	Variable pitch
	Barrel
	Two End opening
	The ends are not flat
Surface treatment	Blackening
	Shot Peening
	Apply anti-rust oil
	Zinc plating
	Polishing
	Electrolytic polishing
	Nickel plating
	Dacromet
	Teflon spray
Materials	Carbon spring steel wire SWC
	Piano wire SWPB
	Stainless steel wire SUS301, SUS302, SUS304, SUS316, SUS631
	65Mn
	82B
	55CrSi (SWOSC-V)
	Nickel-plated wire, galvanized wire
	Copper wire, phosphor copper wire, beryllium copper wire
	Square wire, flat wire, semicircular wire
	Alloy material wire
	Other special specifications steel wire
Wire diameter specifications	0.1~6mm