{"id":6295,"date":"2026-09-01T15:02:49","date_gmt":"2026-09-01T07:02:49","guid":{"rendered":"https:\/\/www.hankocraneparts.com\/?p=6295"},"modified":"2026-09-01T15:02:49","modified_gmt":"2026-09-01T07:02:49","slug":"crane-hook-size-chart-dimensions-and-load-ratings","status":"publish","type":"post","link":"https:\/\/www.hankocraneparts.com\/bn\/crane-hook-size-chart-dimensions-and-load-ratings\/","title":{"rendered":"Crane Hook Size Chart: Dimensions, Load Ratings & Selection Guide"},"content":{"rendered":"

When you select a crane hook, you need to match the right size to your crane’s rated load, reeving system, and operating environment. This chart covers standard dimensions, load capacities, and selection criteria for forged single and double hooks.<\/p>\n

\"Forged-crane-hook-dimensions-diagram-showing-throat-opening,-overall-height,-and-shank-diameter-for-a-single-hook\"<\/p>\n

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

Standard crane hooks are sized by rated load capacity. Common sizes range from 0.5 t to 500 t. Key dimensions include throat opening (hook tip to shank), overall height, shank diameter, and weight. Single hooks (DIN 15401<\/a>) are typical for loads under 80 t, while double hooks (DIN 15402<\/a>) are used for heavier capacities. Always confirm dimensions with the manufacturer, as tolerances vary by standard and production method.<\/p><\/blockquote>\n

 <\/p>\n

 <\/p>\n

Standard Crane Hook Size Chart (Single Hooks \u2014 DIN 15401 \/ GB\/T 10051)<\/h2>\n

Single hooks are the most common type for overhead and gantry cranes. The table below lists standard sizes with approximate dimensions.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Rated Load (t)<\/th>\nThroat Opening S (mm)<\/th>\nOverall Height H (mm)<\/th>\nShank Diameter d (mm)<\/th>\nApprox. Weight (kg)<\/th>\n<\/tr>\n<\/thead>\n
0.5<\/td>\n36<\/td>\n145<\/td>\n25<\/td>\n1.5<\/td>\n<\/tr>\n
1<\/td>\n40<\/td>\n175<\/td>\n30<\/td>\n2.5<\/td>\n<\/tr>\n
2<\/td>\n48<\/td>\n210<\/td>\n36<\/td>\n4.5<\/td>\n<\/tr>\n
3.2<\/td>\n56<\/td>\n240<\/td>\n42<\/td>\n7<\/td>\n<\/tr>\n
5<\/td>\n65<\/td>\n280<\/td>\n50<\/td>\n12<\/td>\n<\/tr>\n
8<\/td>\n75<\/td>\n325<\/td>\n60<\/td>\n22<\/td>\n<\/tr>\n
10<\/td>\n85<\/td>\n360<\/td>\n65<\/td>\n30<\/td>\n<\/tr>\n
16<\/td>\n100<\/td>\n430<\/td>\n80<\/td>\n55<\/td>\n<\/tr>\n
20<\/td>\n110<\/td>\n470<\/td>\n90<\/td>\n75<\/td>\n<\/tr>\n
25<\/td>\n120<\/td>\n510<\/td>\n100<\/td>\n100<\/td>\n<\/tr>\n
32<\/td>\n135<\/td>\n560<\/td>\n110<\/td>\n145<\/td>\n<\/tr>\n
40<\/td>\n150<\/td>\n620<\/td>\n125<\/td>\n210<\/td>\n<\/tr>\n
50<\/td>\n165<\/td>\n680<\/td>\n135<\/td>\n290<\/td>\n<\/tr>\n
63<\/td>\n180<\/td>\n740<\/td>\n150<\/td>\n400<\/td>\n<\/tr>\n
80<\/td>\n200<\/td>\n820<\/td>\n170<\/td>\n600<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

These dimensions follow DIN 15401 and GB\/T 10051 standard profiles. You should expect actual values to vary by \u00b15% depending on the manufacturer’s tooling and the specific standard edition referenced.<\/p><\/blockquote>\n

 <\/p>\n

Standard Crane Hook Size Chart (Double Hooks \u2014 DIN 15402)<\/h2>\n

Double hooks distribute load across two saddles and are preferred for heavier capacities where a single hook would become impractically large.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Rated Load (t)<\/th>\nThroat Opening S (mm)<\/th>\nOverall Height H (mm)<\/th>\nShank Diameter d (mm)<\/th>\nApprox. Weight (kg)<\/th>\n<\/tr>\n<\/thead>\n
80<\/td>\n190<\/td>\n750<\/td>\n165<\/td>\n580<\/td>\n<\/tr>\n
100<\/td>\n210<\/td>\n810<\/td>\n180<\/td>\n820<\/td>\n<\/tr>\n
125<\/td>\n230<\/td>\n880<\/td>\n195<\/td>\n1100<\/td>\n<\/tr>\n
160<\/td>\n250<\/td>\n950<\/td>\n210<\/td>\n1500<\/td>\n<\/tr>\n
200<\/td>\n270<\/td>\n1020<\/td>\n230<\/td>\n2100<\/td>\n<\/tr>\n
250<\/td>\n295<\/td>\n1100<\/td>\n250<\/td>\n2900<\/td>\n<\/tr>\n
320<\/td>\n320<\/td>\n1200<\/td>\n270<\/td>\n4000<\/td>\n<\/tr>\n
400<\/td>\n350<\/td>\n1300<\/td>\n300<\/td>\n5500<\/td>\n<\/tr>\n
500<\/td>\n380<\/td>\n1420<\/td>\n330<\/td>\n7800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Double hook dimensions follow DIN 15402. For loads above 500 t, hooks are typically custom-forged to project specifications. You should request certified drawings from the manufacturer.<\/p><\/blockquote>\n

 <\/p>\n

\"Close-up-view-of-crane-hook-throat-opening-measurement-between-hook-tip-and-shank\"<\/p>\n

Key Crane Hook Dimensions Explained<\/h2>\n

Throat Opening (S)<\/h3>\n

The throat opening is the distance between the inside of the hook tip and the shank. You need it to be large enough to accommodate your sling, shackle, or lifting attachment. If your throat is too narrow, the sling cannot seat properly. If it is too wide, the load may shift during lifting.<\/p>\n

As a rule of thumb, the throat opening should be at least 2.5 to 3 times the diameter of the wire rope sling used. For synthetic slings, follow the sling manufacturer’s minimum curvature radius.<\/p>\n

Overall Height (H)<\/h3>\n

Overall height is measured from the bottom of the hook saddle to the top of the shank thread. This dimension affects the minimum headroom you need in the crane structure. A taller hook requires more vertical space between your trolley and the load.<\/p>\n

\"Crane-hook-overall-height-dimension-measured-from-saddle-bottom-to-shank-thread-top\"<\/p>\n

Shank Diameter (d)<\/h3>\n

The shank is the threaded section that connects the hook to the thrust bearing and nut assembly inside the hook block. Shank diameter directly determines the hook’s tensile strength at the threaded section. The nut and thrust bearing must match the shank specification exactly.<\/p>\n

Saddle Radius<\/h3>\n

The saddle radius is the curvature of the hook’s inner bearing surface. You must match it to your sling or rope diameter to avoid point-loading and premature wear. If you mismatch the saddle radius and sling diameter, you risk one of the most common causes of sling failure, as discussed in our crane hook failure analysis<\/a>.<\/p>\n

 <\/p>\n

Single Hook vs Double Hook: When to Use Each<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Factor<\/th>\nSingle Hook<\/th>\nDouble Hook<\/th>\n<\/tr>\n<\/thead>\n
Typical load range<\/td>\n0.5\u201380 t<\/td>\n80\u2013500+ t<\/td>\n<\/tr>\n
Load distribution<\/td>\nConcentrated on one saddle<\/td>\nSplit across two saddles<\/td>\n<\/tr>\n
Sling attachment<\/td>\nOne or multiple slings on one saddle<\/td>\nSlings on two separate saddles<\/td>\n<\/tr>\n
Weight and cost<\/td>\nLower<\/td>\nHigher<\/td>\n<\/tr>\n
Stability for heavy loads<\/td>\nReduced at high loads<\/td>\nBetter balance and stability<\/td>\n<\/tr>\n
Standard reference<\/td>\nDIN 15401 \/ GB\/T 10051<\/td>\nDIN 15402 \/ GB\/T 10051<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The transition point is typically 80 t. When you choose below 80 t, single hooks are standard and economical. Above 80 t, you should use double hooks for better load distribution and reduced risk of hook deformation. For more on hook types and their applications, see our guide to crane hook types<\/a>.<\/p>\n

\"Single<\/p>\n

 <\/p>\n

Crane Hook Material and Forging Standard<\/h2>\n

Material Grades<\/h3>\n\n\n\n\n\n\n\n\n\n
Material Standard<\/th>\nTensile Strength (MPa)<\/th>\nYield Strength (MPa)<\/th>\nTypical Application<\/th>\n<\/tr>\n<\/thead>\n
20# Steel (DIN C22<\/a>)<\/td>\n410\u2013530<\/td>\n\u2265245<\/td>\nLight-duty hooks \u22645 t<\/td>\n<\/tr>\n
DG20Mn (DIN 20Mn5<\/a>)<\/td>\n500\u2013650<\/td>\n\u2265300<\/td>\nStandard hooks 5\u201380 t<\/td>\n<\/tr>\n
34CrMo4<\/a><\/td>\n700\u2013900<\/td>\n\u2265500<\/td>\nHeavy-duty hooks 80\u2013250 t<\/td>\n<\/tr>\n
35CrMoA<\/td>\n800\u20131000<\/td>\n\u2265550<\/td>\nExtra-heavy hooks 250 t+<\/td>\n<\/tr>\n
30CrNi3MoA<\/td>\n900\u20131100<\/td>\n\u2265700<\/td>\nSpecial application hooks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Forging Requirements<\/h3>\n

You must ensure that crane hooks are open-die forged from a single billet. Welding, casting, or repair welding on load-bearing sections is prohibited by all major standards. Each forged hook you order should carry:<\/p>\n