{"id":6459,"date":"2026-09-16T13:52:39","date_gmt":"2026-09-16T05:52:39","guid":{"rendered":"https:\/\/www.hankocraneparts.com\/?p=6459"},"modified":"2026-09-21T10:49:13","modified_gmt":"2026-09-21T02:49:13","slug":"cast-welded-crane-drums","status":"publish","type":"post","link":"https:\/\/www.hankocraneparts.com\/de\/cast-welded-crane-drums\/","title":{"rendered":"Crane Drums: Cast & Welded Wire Rope Drums"},"content":{"rendered":"

Cast & Welded Wire Rope Drums with Full Quality Control<\/h2>\n

When you need a crane drum supplier, Hanko supplies wire rope drums in cast iron, cast steel, and welded steel constructions with spiral or Lebus groove patterns. This page covers our drum manufacturing capabilities, groove machining, welding standards, and quality control.<\/p>\n

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Featured Snippet: Quick Answer<\/h2>\n

Hanko supplies crane drums in cast iron (HT200), cast steel (ZG230-450), and welded steel (Q235B\/Q345B). Drum diameters range from 250 mm to 1200+ mm. Groove types include spiral (single-layer) and Lebus (multi-layer). Welded drums use submerged arc welding (SAW) for shell seams. Material certificates (for example EN 10204 3.1) and dimensional inspection reports are available on request.<\/p><\/blockquote>\n

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Drum Manufacturing Methods<\/h2>\n

Cast Drums<\/h3>\n\n\n\n\n\n\n\n
Material<\/th>\nTensile Strength (MPa)<\/th>\nApplication<\/th>\nMax Weight<\/th>\n<\/tr>\n<\/thead>\n
HT200 (cast iron)<\/td>\n200<\/td>\nLight-duty, small drums<\/td>\n2 tons<\/td>\n<\/tr>\n
ZG230-450 (cast steel)<\/td>\n450\u2013550<\/td>\nStandard industrial cranes<\/td>\n8 tons<\/td>\n<\/tr>\n
ZG270-500 (cast steel)<\/td>\n500\u2013600<\/td>\nHeavy-duty cranes<\/td>\n8 tons<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

When you choose cast drums, resin sand molding produces a near-net-shape drum body. Your casting includes integral flanges and rough groove profile. After casting, the drum is fully machined to your final dimensions.<\/p>\n

Advantages:<\/strong> Integral flange construction, good vibration damping, economical for medium-volume production.<\/p>\n

Limitations:<\/strong> Maximum weight per piece (8 tons for steel casting), longer lead time for pattern making on new sizes.<\/p>\n

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Welded Drums<\/h3>\n\n\n\n\n\n\n
Material<\/th>\nApplication<\/th>\nMax Diameter<\/th>\n<\/tr>\n<\/thead>\n
Q235B<\/td>\nStandard overhead and gantry cranes<\/td>\n1500 mm<\/td>\n<\/tr>\n
Q345B<\/td>\nHeavy-duty and port cranes<\/td>\n3000+ mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

When you choose welded drums, your shell plate is rolled and welded with submerged arc welding (SAW), end flanges are cut from plate and welded to the shell, and shaft journals are welded or bolted to end plates. All your welds are inspected by dye penetrant (PT) and, for heavy-duty drums, radiographic testing (RT).<\/p>\n

Advantages:<\/strong> No pattern required, unlimited diameter range, faster lead time for custom sizes, material optimization.<\/p>\n

Limitations:<\/strong> Requires skilled welding and post-weld heat treatment to relieve residual stress. For more on welding procedures, see our wire rope drum design article<\/a>.<\/p>\n

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Groove Machining<\/h2>\n

Spiral (Helical) Groove<\/h3>\n

When you need spiral groove, it is standard for your single-layer spooling. It is machined on CNC lathes with a form tool that cuts the rope-matching profile.<\/p>\n