Lift beams, spreader bars, container lifting, container casters and connectors for lifting, securing and mobilizing.

Helpful Information Concerning ISO Containers

This information was developed from ISO Standards 668, 1161, 1496 and 3874

External Dimensions, Ratings and Tolerances:

Freight Container
Designation

Length, L

Width, W Height, H

Rating, R
(Gross Mass)

  Tol   Tol   Tol   Tol   Tol   Tol KG LB

MM

FT / IN IN MM FT IN MM FT / IN IN
1AAA 12192 0
-10
40 0
-3/8
2438 0
-5
8 0
-3/16
2896
2)
0
-5
9
6(2)
0
-3/16
30480
(2)
67200
(2)
1AA 2591
2)
0
-5
8
6(2)
0
-3/16
1A 2438 0
-5
8 0
-3/16
1AX <
2438
  <8  
1BBB 9125 0
-10
29
11 1/4
0
-3/16
2438 0
-5
8 0
-3/16
2896
2)
0
-5
9
6(2)
0
-3/16
25400
(2)
56000
(2)
1BB 2591
2)
0
-5
8
6(2)
0
-3/16
1B 2438 0
-5
8 0
-3/16
1BX <
2438
  <8  
1CC 6058 0
-6
19
10 1/2
0
-1/4
2438 0
-5
8 0
-3/16
2591
2)
0
-5
8
6(2)
0
-3/16
24000
(2)
52900
(2)
1C 2438 0
-5
8 0
-3/16
1CX <
2438
  <8  
1D 2991 0
-5
9
9 3/4
0
-3/16
2438 0
-5
8 0
-3/16
<
2438
0
-5
8 0
-3/16
10160 22400
1DX <
2438
  <8  
2. In certain countries there are legal limitations to the overall height of vehicle and load (for example for rail/road service).
Ref ISO 668-1995 (E).
Reduced height is allowable for tank, open top, bulk, platform, platform based containers.

Nominal Lengths of Containers:

Ref: ISO 668-1995 (E)
Measurements apply when measured at 68 Deg F / 20 Deg C.
Actual length of a 10', 20' and 30' ISO container is less than the nominal length
Freight
Container
Designation
Nominal Lengths
M Ft.
1AAA
1AA
1A
1AX
12(1) 40(1)
1BBB
1BB
1B
1BX
9 30
1CC
1C
1CX
6 20
1D
1DX
3 10
(1) In certain countries there are
legal limitations to the overall length
of vehicle and load.

 
CORNER FITTING LOCATIONS
See Tandemloc CORNER FITTINGS
Freight Container
Designation
S (ref.) P (ref.) K1 Max. K2 Max
MM FT / IN MM FT / IN MM IN MM IN
1AAA
1AA
1A
1AX
11985 39
3 7/8
2259 7
4 31/32
19 3/4 10 3/8
1BBB
1BB
1B
1BX
8918 29
3 1/8
2259 7
4 31/32
16 5/8 10 3/8
1CC
1C
1CX
5853 19
2
7/16
2259 7
4 31/32
13 1/2 10 3/8

1D
1DX

2787 9
1
23/32
2259 7
4 31/32
10 3/8 10 3/8
NOTE: Attention of manufacturers is drawn to the vital importance of accurately maintaining the reference dimensions of S and P. The tolerances to be applied to S and P are governed by the tolerances shown for overall length and width in this International Standard and in ISO 1161.
1. K1 is the difference between D1and D2 or between D3 and D4;
therefore K1=D1-D2 or K1=D3-D4

2. K2 is the difference between D5 and D6; therefore K2=D5-D6
Ref: ISO 668-1995 (E)
Strengths of Corner Fittings to be such that they can pass the operating and test requirements specified in ISO 1496/1

Container Handling and Securing Considerations (Ref ISO 3874-1997 (E)):

Summary of Specified Lifting Methods
Description Container Type
A, B, C and D
Container Type E at
40 ft. Position
Container type E at
45 ft. Position
Top
Lift Spreader
Top
Lift Sling
Bottom Lift Sling
Side Lift:
Method 1
Side Lift:
Method 2
Side Lift:
Method 3
Not applicable to
Type E (45 ft.) containers
Not applicable to
Type E (45 ft.) containers
End Lift:
Method 1
Not applicable to
Type E (45 ft.) containers
Not applicable to
Type E (45 ft.) containers
End Lift:
Method 2
Not applicable to
Type E (45 ft.) containers
Not applicable to
Type E (45 ft.) containers
Fork Lift Not applicable to
Type E (45 ft.) containers
Not applicable to
Type E (45 ft.) containers


Container Lift Spreaders Container Lift Slings
ISO Container Lifting:
For the purpose of container handling and securing, a "loaded container" is a container other than in the tare (empty) condition.
Unless otherwise confirmed, containers should be treated as loaded.
The term loaded means the maximum gross weight rating of the container.
Wind and other environmental conditions must be considered when handling or securing containers.
The cargo shall be distributed throughout the container to ensure that the centre of gravity is kept as central and as low as possible:
 
- to avoid excessive tilting;
- to avoid overstressing either the container or the handling equipment;
- to avoid unacceptable vehicle axle loading;
- to avoid lack of vehicle stability;
- to avoid unacceptable load concentrations.
  Eccentricity of the center of gravity for the loaded container varies with the distribution of load within the container; designers of containers and handling equipment should take this fact into account. As an example, when 60% of the load by mass is distributed in 50% of the container length measured from one end, the eccentricity corresponds to 5%.
Care shall be taken to ensure that the equipment used is suitable for the load and is safely attached to the container and that the container is free to be handled.
In the case of a single-point lift, special attention should be paid to the risk of the container tilting owing to eccentricity of the centre of gravity.
Care shall be taken when lifting a container whose centre of gravity is mobile or eccentric, e.g. a tank container, a bulk container, a container with a liquid bulk bag, a container with hanging cargo or a thermal container with a refrigerating unit (integral or clip-on).
Containers may be handled by methods other than those specified in the following section but only after careful evaluation of the equipment by means of which the container is to be handled and of the methods of operation envisaged, with respect to international container standards.

Summary of Allowable and Not Allowable Lifting Methods:
Lifting containers from the top corner fitting with forces applied other than vertically, is not allowed according to ISO 3874: 1997 (E) EXCEPT:
  Empty containers (except empty platform based containers and platform based with ends, which shall not be lifted other than with forces applied vertically from the top corners).
    When lifting empty containers, the sling angle should not be less than 60 degrees from the horizontal plane.
  Ten foot containers using a sling angle of not less than 60 degrees to the horizontal plane.
Containers may be lifted from the side apertures of all four bottom corner fittings by means of a sling. The attachment fittings should not exert forces more than 1.5 inches away from the outer face of the Corner Fitting.
The minimum lifting angle for loaded containers lifted from the bottom corners is as follows:
   
Container Size Designation Lifting Angle, a, min.
1AAA; 1AA; 1A; 1AX 30 Deg
1BBB; 1BB; 1B; 1BX 37 Deg
1CC; 1C; 1CX 45 Deg
1D; 1DX 60 Deg
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Products include lifting, mobilizing and securing products for below the hook and ISO container handling. Tandemloc provides standard corner fittings, lift beams, spreader bars, pipe end caps, container lifting devices, lifting attachments, twistlocks, d-rings, heavy duty casters, container casters, container lifting dollies and more. See Site Map.

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