Metal Open Head Pails

Metal open head pails (also called open-top steel pails) are cylindrical industrial metal containers with a fully removable top lid, distinct from closed-head tight pails with small fill spouts only .

Main Components
1. Pail Body: Rolled tinplate/carbon steel cylinder, with reinforced ribbing for anti-collision and stackability; wall thickness 0.28–0.45 mm for standard small-to-medium sizes (10–25L) .

2. Detachable Lid: Flat metal cover fitted with rubber sealing gasket for airtight and leakproof performance.

3. Locking System (3 mainstream types):
- Lever lock ring: Quick open/close without extra tools, widely used for daily industrial packaging.
- Lug crimp lid: Crimped by pneumatic machine, for single-time sealed UN-rated dangerous goods packaging.

4. Carrying Handle: Galvanized wire bail handle with plastic anti-slip grip for portable transport.

2. Raw Materials & Internal Linings
Base Material
- Standard: Electrolytic tinplate / cold-rolled carbon steel (low cost, general chemical resistance).
- Premium: Galvanized steel / stainless steel for outdoor damp or corrosive environments .
- Epoxy-phenolic lining: Anti-solvent, for paint, ink, adhesives, resin, thinners.
- Anti-rust clear lining: For lubricants, grease, industrial mineral oil.

Exterior Treatment
Baking paint, powder coating, offset CMYK color printing for brand logos, product labels and safety marks.

3. Standard Capacity Sizes
Two measurement systems widely adopted:
Metric (Liters)

10L, 15L, 20L, 25L (most mainstream industrial specifications, diameters 286/305/328 mm)

Imperial (Gallons)
2.5gal, 3gal, 5gal (18.9L, global universal paint bucket), 6gal, 7gal

4. Key Advantages
1. Full Wide-Mouth Access: The whole top can be opened, convenient for filling viscous paste, powder, large solid raw materials, stirring, cleaning and residual material recovery-unachievable for tight-head pails .
2. Superior Mechanical Strength: Impact-proof, pressure-resistant, stackable for warehouse storage; no deformation under normal heavy load compared with plastic pails.
3. Excellent Sealing & Barrier Performance: Metal blocks oxygen, moisture and UV light effectively, extending shelf life of sensitive products like coatings and solvents.
4. Regulatory Compliance Support: Available with UN 1A2 hazardous goods certification, meeting ADR/RID, EU 94/62/EC packaging standards for sea, land and air transport of dangerous chemicals.
5. Reusable & Recyclable: Metal material can be cleaned and reused multiple times, fully recyclable with low environmental impact.
6. Flexible Customization: Adjustable dimensions, lining formulas, printing patterns and closure structures per customer requirements.

5. Main Application Fields
1. Coating & Chemical Industry: Water-based/oil paints, printing inks, adhesives, curing agents, solvents, resin, putty.
2. Petrochemical Industry: Lubricating oil, hydraulic oil, gear grease, metal cutting fluid.
3. Hazardous Materials Packaging: Low-to-medium risk liquid/solid chemicals with UN certification.
4. Food & Cosmetic: Edible vegetable oil, food wax, cosmetic paste, industrial food additives (with food-grade inner coating).
5. Construction & Hardware: Waterproof mortar, epoxy filler, pigment powder, construction sealant.
6. General Industrial Storage: Metal powder, cleaning chemicals, workshop auxiliary raw materials.

6. Comparison vs Closed Head Pails