Press-Fit Spring Ball Plunger

The press-fit spring ball plunger is a mechanical component that combines elastic pressure with precise positioning functions. It is widely used in fixture positioning, equipment adjustment, safety locking, and other scenarios. Made of 304/316 stainless steel, it has excellent corrosion resistance and mechanical strength, and is particularly suitable for humid, acidic, alkali, or high hygienic industrial environments.

1. High-precision stainless steel structure, durable
Material selection:
304 stainless steel (A2-70): chromium + nickel composition, a passivation film is formed on the surface, and the salt spray test is ≥96 hours without rust (ASTM B117 standard).
316 stainless steel (A4-80): Contains molybdenum, and the ability to resist chloride ion corrosion is increased by 3 times, suitable for harsh environments such as oceans and chemicals.
Spring material:
304/316 stainless steel spring wire, after stress relaxation treatment

2. The elastic pressure is adjustable and suitable for a variety of working conditions
Elastic force range: 2N~50N (customization is supported), achieved by replacing the spring or adjusting the preload stroke.
Typical applications:
Light load (2-10N): electronic equipment door locking (such as testing instruments).
Medium load (10-30N): mechanical fixture positioning (such as automotive welding tooling).
Heavy load (30N+): heavy equipment safety pin (such as injection molding machine mold locking).

Typical application scenarios of press-fit spring ball plunger
Industrial fixtures: quickly locate molds and fixtures, reduce adjustment time (60% more efficient than traditional screw positioning).
Automation equipment: modular switching of robot end-of-line tools (EOAT) to support high-frequency plugging and unplugging.
Medical equipment: removable component locking of surgical instruments following ISO 13485 hygiene standards.
Outdoor instruments: anti-drop design of instrument box cover to resist vibration and moisture.

Why choose our products?
1. We can provide material report (SGS/MSDS) to ensure the components meet the standards.
2. Full process salt spray test + torque test to eliminate thread slippage or rust defects.
3. Supports non-standard dimensions, surface polishing, laser engraving, and other requirements.