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.
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| Drum Closures Item | Pcs/Box | Next Package Steps |
|---|---|---|
| 2" Flanges | 250 | Packing specifications tags and shipping marks-->Tie with plastic straps firmly--->Fix on fumigation-free wooden pallet (1250mm*1250mm*1000mm /pallet ) |
| 2" Flanges | 500 | |
| 3/4" Flanges | 250 | |
| 3/4" Bungs/Plugs | 1000 | |
| Package Design Standard | Seaworthy Packing --Large Quantity Order;Suitable for Air and Land Transportation Packing--Small Quantity or Sample Order | |
| Remarks | Your other special requirements in package are acceptable due to our wonderful desingn team. |
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.
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.
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.
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 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.
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.
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.
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
A CR3 drum closure is a zinc-plated steel closure finished with trivalent chromium passivation. It is used to provide corrosion protection for drum plugs, flanges, and related closure components in standard industrial applications.
A complete set can include one 2-inch plug, one 3/4-inch plug, one 2-inch flange, one 3/4-inch flange, and four matching gaskets. Components can also be purchased separately.
Yes. NPS and BTR thread options are available. Buyers should provide the drum drawing or exact thread specification before ordering.
Yes. Qiming Packaging supports engraved logos, custom internal weld structures, internal profiles, dimensions, gaskets, surface requirements, and packaging. Tooling drawings can be provided in as fast as three days for qualified custom projects.
MOQ depends on the size, structure, gasket, packaging, and customization. Standard products support low MOQ, and smaller trial orders can be discussed.
Yes. Free samples are available for fit checking, material review, and quality evaluation before a production order.
No. A drum closure is a component of a complete packaging system. UN marking applies to the complete tested drum configuration, not to a standalone closure.
Need CR3 zinc-plated drum closures for a standard order or a custom project? Send us your drum drawing, thread requirement, gasket requirement, quantity, and destination market. Qiming Packaging will review the specification and provide a quotation or free sample for evaluation.
Request a Quote | Request Free Samples