200-230L Cold-Rolled Steel Closed-Top Drums

The drum body employs 0.5–1.2mm thick premium cold-rolled steel plate. The substrate boasts high purity and fine grain structure, delivering outstanding strength and formability. Thickness can be flexibly selected based on material weight and application scenarios, balancing lightweight construction with load-bearing capacity. The structure remains stable and resistant to deformation when fully loaded at 200–230 litres. Dual protective coating system: external phosphating followed by industrial-grade anti-rust paint application, with internal rust-preventative oil coating. The exterior undergoes phosphating before receiving an industrial-grade anti-rust paint finish, delivering strong adhesion and uniform colouration. This effectively seals out air, moisture, and contaminants, enhancing corrosion resistance for outdoor storage and long-distance transport. The interior receives uniform application of food-grade rust-proof oil, forming a protective oil film that prevents internal corrosion caused by moisture or residual materials. This extends service life while ensuring material cleanliness. Suitable for standard operating temperatures from -10°C to 80°C, it safely holds non-strongly corrosive liquids, solvents, and similar materials. Cleanable for reuse, it balances cost-effectiveness with environmental sustainability. Precise, controllable barrel specifications: internal diameter 560/571mm, height 850-980mm, compliant with industrial storage and transport standards. Compatible with standard pallets and handling equipment for effortless stacking and placement.

Precise 200-230 litre capacity perfectly matches industrial bulk storage requirements, reducing material repackaging frequency and enhancing operational efficiency. The core feature is the professional closed-top sealing structure, equipped with a DN50 standard closed-top interface and a dedicated sealing lid. The lid incorporates a double-layer nitrile rubber seal, secured via a threaded fastening plus anti-theft pin mechanism, achieving a sealing pressure of 0.1MPa. This effectively prevents liquid leakage, solvent evaporation, and external contamination, making it particularly suitable for volatile or easily contaminated materials. The tapered design, wider at the top and narrower at the bottom, features a contracted base that interfaces with a sealed discharge valve (optional), ensuring complete material evacuation without residue. This configuration is particularly advantageous for viscous materials such as coatings and adhesives. The barrel's tapered design is mechanically optimised for stable stacking without tipping. Standardised stacking is achievable with inner diameters of 560/571mm and heights of 850-980mm, saving storage space. Empty barrels can be nested for stacking, reducing return transport costs.

The drum body employs high-frequency resistance welding, producing robust, flush welds. It passes 0.2MPa hydrostatic pressure testing without leakage, ensuring secure containment for large-volume sealed storage. Closed-top interfaces feature dust caps to protect connections when unused. Prior to painting, the exterior undergoes shot blasting for rust removal, yielding a smooth, contaminant-free surface that facilitates easy cleaning and resists soiling post-painting. Reinforced galvanised lifting lugs on both sides are securely welded to the drum body, supporting loads exceeding 200kg. Compatible with forklifts, lifting gear and other handling equipment, the 850-980mm height design balances capacity with operational convenience, facilitating manual handling. Anti-theft pin mechanisms prevent unauthorised opening during transit, enhancing material security. The internal rust-inhibiting oil coating is uniformly applied without drips or sagging. Combined with the sealed lid, it provides dual protection, further reducing corrosion risks.