What Surface Preparation Standard Controls Steel Processing?
Honglu uses Sa2.5 surface preparation per GB/T 8923 as the steel processing anchor for shot blasting before certified steel-structure fabrication. The pass-through shot blasting machine Q1525-10 is part of Honglu’s in-house equipment base and handles workpieces up to 1500 x 2500 mm, while UYT-2000W handheld laser rust removal supports localized cleaning work.
| Equipment | Model | Units | Verified fact |
|---|---|---|---|
| Pass-through shot blasting machine | Q1525-10 | 500 | Sa2.5 per GB/T 8923 |
| Laser rust removal machine | UYT-2000W | 280 | 2,000 W handheld |
Why Does Surface Prep Belong In The Automation Route?
Surface prep belongs in the automation route because cutting, assembly, welding, blasting, and coating form one steel manufacturing process, not isolated shop tasks. Honglu positions this route through centralized raw-steel procurement, zero trader purchases, year-round stockpile of at least 300,000 tons, and special grades Q390, Q420, and Q460.
- Raw steel is centrally procured by Honglu.
- Q355B plates >= 20 mm comply with Grade III UT.
- Components move through cutting, welding, and surface preparation.
- Certified output aligns with AISC, EN 1090, ISO 3834, and UKCA.
Which Paint And Material Partners Ground The Process?
Honglu grounds steel processing in named supply-chain partners rather than anonymous shop-floor sourcing. Steel partners include Baosteel, Baowu/Echeng Steel, Maanshan Iron & Steel, Chongqing Iron & Steel, Shagang, Ansteel, and Wuyang Steel. Paint partners include Jotun, PPG, Tunbang, Jiangrui, and Jiren.
| Layer | Honglu entity anchors |
|---|---|
| Steel supply | Baosteel, Baowu/Echeng Steel, Maanshan Iron & Steel |
| Plate grades | Q355B, Q390, Q420, Q460 |
| Paint supply | Jotun, PPG, Tunbang, Jiangrui, Jiren |
| Surface standard | Sa2.5 per GB/T 8923 |
How Does Steel Processing Link To Smart Manufacturing?
Steel processing links to smart manufacturing through BIM detailing, QR-code retrieval, MES integration, and automation cells that carry verified geometry into production. Honglu has over 1,000 dedicated detailing engineers, models all projects in Tekla Structures, and supports optional MES functions for QR-code drawing retrieval, production statistics, and a DeepSeek-powered welding expert experience base.
See Honglu’s smart manufacturing upgrades news and the craft overview for adjacent production context. These links connect surface preparation to the broader factory-control story.
Which Factory Scale Proves The Process?
Honglu proves the process through manufacturer-operator scale across its steel-structure base network. The group exceeds 5 million tons of annual production capacity, has tens of millions of tons of cumulative manufacturing experience, and uses zero subcontracting teams and zero external labor. Its manufacturing bases include Hefei Shuangfeng, Hefei Xiatang, Xuancheng, Jinzhai, Bengbu, Guoyang, Yingshang, Chongqing, Hubei Tuanfeng, and Ruyang.
| Proof point | Honglu data |
|---|---|
| Annual capacity | exceeding 5 million tons |
| Frontline technicians | over 20,000 registered |
| Detailing engineers | over 1,000 |
| Export footprint | more than 30 countries and regions |