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Dimensional Checklist Crane Hook

The document outlines a dimensional checklist for crane hooks, specifying various measurements such as throat opening, hook width, height, eye diameter, and hook curve radius, along with their tolerances. It includes notes on standards to refer to and inspection requirements for safety. Rejection criteria are also provided for deformation, wear, and visible cracks.

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abdullah
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50 views2 pages

Dimensional Checklist Crane Hook

The document outlines a dimensional checklist for crane hooks, specifying various measurements such as throat opening, hook width, height, eye diameter, and hook curve radius, along with their tolerances. It includes notes on standards to refer to and inspection requirements for safety. Rejection criteria are also provided for deformation, wear, and visible cracks.

Uploaded by

abdullah
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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✅ Dimensional Checklist – Crane Hook (Short Form)

No Dimension Standard/ Toleran Measur Statu


Item
. Description Nominal ce ed s

Distance
Throat
between hook
1 Opening As per class ±1 mm
tip and inner
(Gap)
back radius

Across the
thickest
2 Hook Width e.g., 60 mm ±2 mm
horizontal
section

Top eye to
Hook Height
3 lowest hook e.g., 320 mm ±3 mm
(Overall)
point

Diameter of the
Eye or Shank ±0.5
4 hole or threaded e.g., 40 mm
Diameter mm
shank

Radius at Inner radius


5 Hook Curve where the rope As per drawing ±1 mm
(R1) or load contacts

Hook Compared to
Max +5%
6 Opening original
allowed
Deformation dimension

Wear at Thickness lost at


7 Contact rope or shackle Max 10% loss
Surface contact area

📌 Notes:

 Refer to IS 3815 / DIN 15401 / BS 2903 depending on standard.

 Check hook deformation against original or nominal size.

 If used in lifting, perform magnetic particle inspection for surface


cracks.
 Rejection Criteria:

o Throat opening widened >5%

o Wear >10% on contact surfaces

o Any visible cracks

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