News
Aug 11,2026
By:Pino
In the continuous wire processing industry, phosphating quality directly determines drawing performance, tool life, and final product consistency. The G7500 Series is a specialized zinc‑phosphating system engineered exclusively for continuous heat‑treatment lines. Unlike generic products, we tailor each batch to match your actual line conditions – ensuring seamless integration without process modification.

| Parameter | Specification |
|---|---|
| Product Name | G7500 |
| Type | Zinc phosphating |
| Processing Method | Heat treatment line (in‑line) |
| Operating Temperature | 75 – 85 °C |
| Minimum Treatment Time | As low as 15 seconds |
| Coating Weight | 4 – 8 g/m² |
| Key Features | Heavy coating, rapid film formation, extremely stable bath chemistry, easy to operate and control, designed for high‑volume continuous production and high‑speed drawing |
These parameters guarantee a uniform, dense phosphate layer that reduces die wear and enables consistent lubrication throughout the drawing process.

15‑second ultra‑fast phosphating – boosts line speed without sacrificing coating quality.
Exceptional bath stability – minimizes chemical adjustments, reduces waste, and ensures reproducible results shift after shift.
Custom‑made for your line – we don’t offer a one‑size‑fits‑all solution. Our team adjusts the formulation based on your furnace type, wire grade, and drawing speed.
Proven in mass production – trusted by leading steel wire manufacturers for 24/7 continuous operation.
Our G7500 series is the preferred choice for:

These partners have validated theG7500’s performance in real‑world, high‑demand environments.
A customer with multiple identical production lines using G7500 reported that Line VI consistently produced thin phosphate films, leading to drawing defects (oversized dies and “whitening”). All other lines ran perfectly with the same chemistry and parameters.
Our CQE (Customer Quality Engineer) spent one week on‑site, systematically checking:
People – operator procedures were correct.
Material – bath chemistry and concentrations were within spec.
Environment – no ambient changes.
Measurement – testing methods were accurate.
Only when we focused on the Machine factor did we discover through comparative trials that the heat‑treatment furnace on Line VI had stability issues.
We formed a joint task force including our sales, quality, R&D, industry advisors, and heat‑treatment experts.
We took two parallel actions:
Customized chemistry upgrade – R&D developed a new phosphating formulation specifically adapted to the unstable furnace condition, using electrochemical principles and big‑data analysis from the line. The new formula was ready within one week and immediately stabilized the coating.
Furnace repair – With the furnace manufacturer’s cooperation, we pinpointed a leakage point in the third zone and fixed it within the same week. All parameters returned to normal.
Outcome – The new formulation not only solved the immediate problem but also showed better long‑term bath stability than the original version.
“We are impressed by your rapid R&D response and your persistence in finding the true root cause – not just applying a temporary fix. The new G7500 variant performs even better than expected.”

Proven results – backed by field data and top industry names.
Customization – we don’t ship generic drums; we ship solutions that match your specific furnace and line dynamics.
End‑to‑end support – from initial parameter mapping to on‑site troubleshooting and formulation tuning, our team works alongside yours.
SEO‑friendly reliability – high stability, low downtime, and consistent coating weight translate directly to higher productivity and lower cost per ton.
Ready to optimize your continuous phosphating process? Contact our technical sales team for a free line assessment and a trial batch of G7500 tailored to your exact conditions.
We provide comprehensive wire production chemical solutions to global customers—from high-performance phosphating solutions to advanced dry wire drawing lubricants.