SPC Flooring Factory Click Lock System

From a factory and project-supply perspective, the click lock system is never a marketing feature

It is a core quality factor that directly defines the product's service life

Based on real installation and after-sales data, over 60% of SPC flooring complaints are caused by lock joint issues. Even when the same SPC core formula is used, differences in lock performance can determine whether the floor is suitable for commercial projects, long-term installations, or repeated installation and removal.

We firmly believe that lock quality defines application boundaries.

Only a stable and reliable locking system can support:

• Large-scale project installations

• High-traffic commercial environments

• Long-term residential use

That is why, in our factory, the lock system is treated as the “connection soul” of SPC flooring, not a simple machining step.

What Truly Determines Lock Quality: Manufacturing Control, Not Just Design

The market often focuses on lock profiles (Valinge, Unilin, etc.).

From a factory standpoint, however, lock performance is decided by a complete manufacturing control loop, not by drawings alone.

Our lock stability comes from three key controls:

1. Stable Core Material: Preventing Lock Failure at the Source

More than 80% of lock failures originate from unstable SPC core material, not from the lock profile itself.

We ensure stability through three controls:

• Strict density range control to prevent edge cracking caused by low or uneven density

• Consistent CaCO₃ / PVC ratio at 3.2:1, balancing rigidity and flexibility to avoid tight–loose variations

• Controlled recycled material ratio, ensuring fatigue resistance and structural integrity after long-term use and repeated installation

A stable core is the foundation of a reliable lock.

2. Precision Milling: Millimeter-Level Manufacturing Discipline

Lock performance depends on precision and batch consistency.

• High-precision Japanese machines

        Height tolerance: ±0.05 mm

        Width tolerance: ±0.1 mm, tighter than industry averages

• One-tool-set policy per production batch, avoiding dimensional deviation caused by frequent tool changes

• Regular tool maintenance and calibration to ensure sample performance equals mass production performance

This eliminates a common industry issue: “approved samples, unstable bulk orders.”

3. Environment & Online Control: Small Details, Big Stability

Lock joints are extremely sensitive to micro-dimension changes.

• Real-time online dimensional monitoring with dynamic parameter adjustment

• Process control prioritized over post-production inspection

We do not rely on “after-the-fact checks.”

Stability is built during production, not discovered afterward.

Full-Scenario Testing: Proving Long-Term Lock Reliability

Before mass production, every lock system must pass four key tests:

• Mechanical strength testing (GB/T 34440-2017)

Horizontal tensile strength ≥ 2 kN/m

Vertical pull resistance and horizontal locking strength both qualified

• Installation consistency testing

Smooth, controlled installation force

No overly tight or loose connections

• Fatigue testing

More than 10 installation and removal cycles with no structural damage

• Full-area installation testing

Whole-room simulations instead of single-plank testing

Ensures large-area installation stability

Real Value of a Stable Lock System

For the factory:

• Lower installation risk in export and project orders

• Fewer after-sales claims and complaints

• Stronger long-term cooperation and reputation

For the end user:

• Glue-free installation, no VOC concerns, suitable for family and sensitive environments

• Easy maintenance, single-plank replacement costs only 1/20 of full renovation

• High adaptability, only 5-6 mm floor height increase, 50% faster installation

Ideal for renovations and commercial projects

Our Commitment to Buyers: Lock Stability You Can Trust

When evaluating an SPC flooring supplier, focus less on brand names of profiles and more on what truly matters:

• Is lock milling done in-house with full process control?

• Is the core density range clearly defined and controlled?

• Is tool consistency maintained within each batch?

• Cycle tests part of routine validation?

At Furmanflooring, we believe the lock system is the quality foundation of SPC flooring.

That’s why we continuously invest in:

• High-precision equipment

• Strict manufacturing discipline

• Comprehensive testing systems

These efforts may not be visible to end users—but they ensure every plank locks securely, performs consistently, and lasts long-term.

Choosing Furmanflooring means choosing worry-free connections and long-lasting SPC flooring solutions.