This design increases lever-lock strength, making the opening and closing of the drum lid significantly easier and more efficient.


Custom Lid and Ring for Safe and Long-term Packaging

A drum collar is a ring-shaped component designed to reinforce the structure, ensure secure closure, and prevent leakage or contamination in conical drums. These components are typically manufactured from durable materials such as galvanized steel, aluminum alloys, and in some cases engineered plastics. They are installed on the mouth lid or body of the conical drum to prevent deformation, dust ingress, and physical damage.
At Bochka, we do not design and manufacture these components as Individually, but as an integrated drum packaging system based on a user-centered engineering approach—a system that simultaneously guarantees safety, durability, and ease of use.

During transportation and storage operations, the use of an industrial drum collar significantly increases the stability of conical drums, reduces the risk of falling, and helps prevent costly accidents. This simple yet critical component provides peace of mind throughout the logistics process.
The use of this component delivers direct benefits in operational efficiency and cost optimization.
Enhanced safety in heavy-duty transportation
Improved industrial performance
Extending industrial drum lifespan

High resistance to impact, pressure, and corrosion
Reusability
Compatibility with various drum sizes

Conical drum Collar is a standard solution across a wide range of industries:

This type of ring, known as the U-type ring, is used for sealing applications in metal drums. Depending on Customer’s requirements, it is manufactured and supplied with sheet thicknesses ranging from 0.7 mm to 1.25 mm.

In addition to drum rings, Bochka also manufactures and supplies ring clamps for various applications. Drum clamps for metal and plastic drums are manufactured in two sizes—large and small—with a sheet thickness of 1.5 mm.

Bochka is proud to serve as the official representative and importer of products from the reputable and internationally recognized Technocraft India, supplying the needs of drum manufacturing factories across Iran.
The metal drum bottom is one of the most critical components in Bochka drum manufacturing, playing a key role in structural strength, application type, and content discharge. Bochka metal drum bottoms are typically manufactured in two main types:

The perforated bottom drum features one or more standard holes, usually designed with a cap, drain plug, or outlet valve. This type of bottom is ideal for drums that require easy and controlled discharge of contents.
Perforated Bottom
Plain Bottom
drum is manufactured as a single, seamless piece without any holes or outlets. It is most commonly used in drums designed for the storage and transportation of liquids or sensitive materials.
| Selection Criteria | Drum Collar | Drum Lid | Practical Description |
|---|---|---|---|
| Main Function | Maintaining the strength of the drum bodyOpening, closing, and sealing | Proper selection extends metal drum lifespan | |
| Design Type | Plain collar / Reinforced collar | Plain lid / Screw lid / Lever lock lid | based on industrial use or storage requirements |
| Common Materials | Galvanized steel / Carbon steel | Galvanized steel / Stainless steel | Suitable for industrial and export metal drums |
| Mechanical Strength | Very high (resistant to lateral pressure) | High (resistant to impact and pressure) | for safe transportation and storage |
| Corrosion Resistance | Medium to high | High (especially for stainless steel lids) | Essential for chemical materials and liquids |
| Impact on Drum Cost | Low | Medium | High-quality lids increase the Drum’s value |

A drum collar is a durable metal band installed around the drum body. It increases structural strength, maintains the drum’s shape, and prevents deformation during transportation and storage.
Yes. A properly designed and standard-compliant collar prevents deformation of the drum body, significantly reducing the risk of leakage—especially around the lid and bottom areas.
This design increases lever-lock strength, making the opening and closing of the drum lid significantly easier and more efficient.
For export applications, it is recommended to use:
Thick and reinforced collars
Locking or screw-type lids with strong sealing performance
To Select the Best Option, the Following Factors Should Be Considered:
Type of material stored inside the drum
Transportation conditions
Frequency of lid opening and closing
Storage environment (humid or corrosive)
Yes. Using a standard collar with appropriate thickness prevents deformation of the drum body over time and significantly extends the lifespan of the metal drum.
Yes. By securely locking the top lid in place, the drum ring prevents accidental opening during handling and transportation, thereby increasing overall safety.
Absolutely. In maritime transportation, due to high humidity and impact risks, the use of thick and durable Bochka drum collars is essential.
The drum ring is typically installed on the lid using a locking system or adjustment screw, allowing for quick and easy opening and closing.






In today’s industry, competitive advantage is not achieved through low-cost components or temporary solutions, but through the selection of reliable, engineered, and user-centered systems—systems that protect your products from leakage, contamination, and logistical damage while simplifying, accelerating, and securing operational processes for your workforce.
The Bochka conical drum lid, collar, and ring system has been designed and manufactured with this exact philosophy. The intelligent combination of industrial strength, precision manufacturing, professional sealing, and ergonomic design makes this system a reliable choice for oil and gas, chemical, food, and pharmaceutical industries.
The use of customized rings with longer, user-friendly handles not only enhances the drum safety but also significantly improves efficiency while reducing operator fatigue.
If you are looking for a solution that reduces hidden costs in the long term, minimizes operational risks, and elevates your industrial standards, choosing an integrated and engineered system is a smart and strategic decision.

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