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EAD21000A STANDARDS FOR TANDEMLOC
SLING & BELOW THE HOOK LIFTING DEVICES
MANUFACTURING & TEST SPECIFICATION NOTES |
| 1. |
Proof testing
(unless otherwise specified on the Tandemloc drawings): |
| |
A. |
All below the
hook lifting devices are manufactured in accordance with ASME
B30.20 and are proof loaded to conform to that specification and
OSHA 2232 (1918.61), as follows: |
| |
|
| WORK LOAD LIMIT (WLL) |
|
PROOF LOAD |
| Up to 40,000 lb. |
- |
25% in excess of
load limit |
| Above 40,000
lb.to 100,000 lb. |
- |
10,000 lb. in
excess of load limit |
| Over 100,000 lb. |
- |
10% in excess of
load limit |
|
| |
B. |
All chain,
wire rope and synthetic pendant slings are manufactured in
accordance with ASME B30.9 and are proof loaded to 200% of the
work load limit. |
| |
C. |
All comml
shackles, hooks, chain connectors and rings are proof tested to
200% of WLL. |
| |
D. |
All I.S.O.
container lifting spreaders are proof tested to 125% of the work
load limit. |
| 2. |
Marking below the hook lifting devices: |
| |
A. |
Decals of self adhering
vinyl are used to mark both sides with the work load limit (WLL),
and the Tandemloc logo. Additional marking, when required, shall
be noted on the Tandemloc drawing. |
| |
B. |
The WLL limit color is
black and the Tandemloc logo color is red unless otherwise
specified on the Tandemloc drawings. |
| |
C. |
Letter height of the
decals are 5" unless space does not allow it. On smaller spaces,
the max. letter height to fit the space is used. |
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D. |
The WLL marking is located
in central locations so that it is both highly visible and right
side up during use. |
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E. |
A test certification tag
(AA24000A-CP1) is permanently attached, showing Tandemloc I.D.,
Part No., Serial No., Weight and Work Load Limit. |
| 3. |
Marking
Slings: |
| |
A. |
A sling leg is metal
tagged (AA24000A) showing use, work load limit, part no., size,
length and Tandemloc I.D. |
| |
B. |
Lift components are safety
marked in accordance with ASME Z535.4.O., WE |
DESIGN SERVICE CLASS AND LIFE CATEGORY PER ASME BTH-1-2005 |
|
Unless otherwise specified on the product drawing, the design
category used is “B" (S.F. 3:1 to yield) and the service life is
Class "O" (up to 20,000 load cycles), except that ISO container
lift spreaders have a service life Class "1" (up to 100,000 load
Cycles). Different design categories and service classes must be
defined by the buyer prior to order placement. The lifting
product will then be custom engineered to meet the specified
requirements. |
SERVICE TEMPERATURES OF TANDEMLOC
LIFT DEVICES |
All lift devices and slings sold by
Tandemloc are made in conformance to ASME B30.20 (below the hook
lifting Devices) and ASME B30.9 (slings) unless otherwise noted.
These specifications require the user to perform a pre-lift
equipment inspection and limit the amount of impact and shock
loading to minimal. This is of extreme importance especially
when the service temperature goes below 35°F, and increasingly
important with each degree lower. On this basis, the Tandemloc
standard equipment is useable in temperatures of 150°F down to
minus 40°F. (low limit per ASME B31.3 temperature criteria
without Charpy testing).
The user has the option of purchasing ASME B30.20 below the hook
lifting devices, made for arctic service to minus 50°F. These
devices are made of special steels which are produced to
withstand Charpy impact tests made at minus 50°F. The user must
still avoid impact and shock loading and perform the careful
pre-lift inspection noted above, but will Have an extra margin
of safety. The high temperature limit is 150°F.
|
| Pre-lift inspection procedures are noted in ASME B30.20 and ASME
B30.9 available from ASME. |
| Tandemloc recommends that before any low temperature lift or
after any accidental damage occurrence that the device is
inspected for cracks, gouges and deep scratches in high stress
areas. Repair and re-test before using. |
| SUPPLEMENTARY DATA |
| ASME B30.9 (2003) defines service
temperatures for sling materials as follows: |
|
Alloy GR80 or 100 steel chain |
: |
400°F to minus 40°F |
|
Steel wire rope IWRC |
: |
400°F To minus 40°F |
|
Steel wire rope with fibre core |
: |
180°F to minus 40°F. |
|
Steel mesh |
: |
See specification for
many alternatives |
|
Synthetic media |
: |
140°F to minus 40°F.
See specification for certain types which have higher
maximum service temperatures. |
The above supplementary data is for
reference only. Actual service temperatures must be confirmed
when purchasing. Sling assemblies will have fittings and other
components which will affect service temperatures.
|
| WORK LOAD LIMITS AND NON-UNIFORM
LOADING |
Unless otherwise stated, Tandemloc
below the hook lifting devices work load limits for I.S.O.*
freight containers are based on a uniformly loaded container.
Non-uniformly loaded containers require a reduction of the work
load limit to prevent a higher loading of a structural container
component than the load occurring in a uniform lift.
*ISO 668 & ISO 1161 |
| Rev. |
Description |
Date |
App. |
| A |
Added 4 B. Data. |
12/15/03 |
MD |
| B |
ASME was ANSI 3 places. |
01/13/06 |
MRD |
| C |
Proof load Note 1 said
125% of WLL only. Added shackles, chain conn.,
Hooks, ring,& ISO container spreader proof test data in Note 2. |
01/10/07 |
MD |
| D |
Added service temperature
data. |
03/15/07 |
MD |
| E1 |
Corrected spelling &
sentence structure of all words. Added supplementary data. Final
review completed for reissue. |
03/21/07 |
MD |
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