2 inch and 3/4 inch Cr3 Zinc Plated Drum Closures
Qiming Packaging manufactures 2-inch and 3/4-inch CR3 zinc-plated drum closures for 200L / 55-gallon steel drums, tinplate pails, and industrial packaging applications. CR3 uses trivalent chromium passivation over a zinc-plated steel surface to provide corrosion protection for standard industrial use.
A complete closure set can include one 2-inch drum plug, one 3/4-inch drum plug, one 2-inch drum flange, one 3/4-inch drum flange, and four matching gaskets. Drum plugs, flanges, and gaskets can also be ordered separately.
We support OEM/ODM, engraved logos, custom internal weld structures, custom closure geometry, mixed-product orders, low MOQ, and free samples. Our in-house mold factory can provide new tooling drawings in as fast as three days.
2 inch and 3/4 inch Cr3 Zinc Plated Drum Closures Specification
Why Choose Qiming 2 ” and 3/4 ” Cr3 Zinc Plated Drum Closures ?
Corrosion Protection for Standard Industrial Use
The zinc-plated surface helps protect carbon steel components against corrosion during storage, handling, and normal industrial use. Final performance depends on the application environment, storage conditions, and contact materials.
Trivalent Chromium Passivation
CR3 refers to trivalent chromium passivation used with the zinc-plated finish. Buyers should confirm their own technical, regulatory, and destination-market requirements before selecting a surface treatment.
Flexible Component Supply
Complete closure sets and individual plugs, flanges, and gaskets are available. This allows drum manufacturers, fillers, importers, and distributors to purchase complete systems or replace individual components.
Custom Structures and Engraved Logos
Qiming Packaging supports engraved logos, custom dimensions, internal weld-point structures, internal profiles, gasket selection, and export packaging. Our in-house mold factory can provide tooling drawings in as fast as three days for qualified custom projects.
Low MOQ, Free Samples and Mixed Orders
Low-MOQ and trial-order options can be discussed according to the specification. Free samples are available for fit and quality evaluation. Mixed orders can combine drum closures with drum cap seals, IBC fittings, pails, and related packaging accessories.
Available Weld and Structure Options
- 6-point plus 2-point weld structure
- 4-point plus 2-point weld structure
- Integrated or customized internal structures
- Custom internal profiles and dimensions
- Engraved brand or identification marks
Please provide your drum drawing, plug and flange dimensions, thread standard, gasket requirements, filled material, annual demand, and destination market when requesting a custom design.
Gasket and Application Compatibility
The gasket must be selected according to the filled product, temperature range, chemical exposure, sealing requirements, and transport conditions. Compatibility should be confirmed before production because no single gasket material is suitable for every oil, solvent, acid, alkali, or chemical application.
Qiming Packaging can recommend a gasket configuration based on the information supplied by the buyer, but final compatibility testing and approval should be completed for the finished packaging system.
Important Compliance Note
A drum closure is one component of a complete packaging system and does not independently carry the UN certification of a finished drum. UN marking applies to the complete tested and approved packaging configuration. Drum fillers must confirm the correct closure, gasket, tightening method, and compatibility for the intended contents before filling and transport.
Qiming Packaging also exports complete 200L plastic drums with applicable UN marking and 200L metal drums. Contact us separately if you require a complete drum rather than closure components.
Cr3 Zinc Plated Steel Drum Closure
CR3 and CR6 Drum Closure Flanges
CR3 and CR6 Drum Plugs





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