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The Machinery Directive (2006/42/EC)
applies to all machinery placed on the EU market, including crane hooks.

EU EN coordinated standards (key standards):

• EN 1677-1 Lifting hooks – Part 1: General purpose forged hooks

• EN 1677-2 Lifting hooks – Part 2: Grades and dimensions of forged hooks

• EN 1677-5 Lifting hooks – Part 5: Testing and inspection of forged hooks

• EN 13001 Cranes – General design series of standards (related to load calculation)

EN 818-7 (Safety requirements for chains, hooks and accessories)

EN 13155 (Safety requirements for non-stationary cranes)

Is the hook marketed as a standalone product?

• If sold separately, a separate CE certification is required.

• If it is part of a crane, it can be certified along with the entire machine.

Material requirements (EN 1677-1):

• Forged or rolled steel (such as C45, 34CrMo4, etc.) must be used, and cast iron is prohibited.

• Materials must provide material certificates (level 3.1 or 3.2) .

Structural requirements :

• The hook mouth and hook throat dimensions comply with EN 1677-2.

• A latch must be provided (unless exempted).

Load calculation (EN 13001):

• Safety factor ≥ 4 (dynamic loads require additional calculation).

Static load test (EN 1677-5):

• 200% WLL (Working Load Limit) static load test , hold for 1 minute, no permanent deformation or cracks.

Non-destructive testing (NDT) :

• Magnetic particle testing (MT) or ultrasonic testing (UT) to ensure there are no internal defects.

Fatigue testing (optional, high risk applications):

• Simulate 10^6 cycles of loading to ensure no crack propagation.

Key documents :

• Product drawings (including dimensions, materials, and heat treatment processes).

• Test reports (static load, NDT).

• Risk assessment report (ISO 12100).

• User manual (including installation, inspection and maintenance requirements).

Is a Notified Body required?

• If the hook is a dangerous mechanical accessory (e.g. for lifting personnel), NB agency intervention is required (e.g. TÜV, BV, SGS).

• If it is used for normal lifting only, the manufacturer can self-declare it (but third-party audit is recommended).

The CE mark must be clearly and permanently marked on the hook or nameplate.

The Declaration of Conformity (DoC) must contain:

• Manufacturer Information

• Product Model

• Applicable Directive (2006/42/EC)

• Reference standards (e.g. EN 1677-1)

Solution :

• Provide material chemical composition and mechanical properties report (such as 3.1 grade material certificate).

• Or conduct material re-test (third party laboratory).

Applicable situations :

• The hook is used in closed systems (e.g. inside a crane, without risk of unhooking).

• The reasons for the exemption must be stated in the technical documentation.

Possible causes :

• No NDT testing was performed.

• The technical documentation is incomplete (missing EN 1677-5 test report).

• Solution : Conduct additional tests and improve documentation.

CE certification is a mandatory requirement for hooks to enter the EU market and must comply with the EN 1677 series of standards.

Key steps : Material certification → Static load test → NDT inspection → Technical documents → CE mark.

High-risk applications (such as personnel lifting) require the involvement of a Notified Body (NB) .

Manufacturers need to continue to monitor standard updates (e.g. EN 1677-1:2024 may increase NDT requirements).

Cooperate with professional certification bodies (such as TÜV, SGS) to ensure first-time approval.

Check the condition of the hooks regularly to ensure long-term compliance.

The Machinery Directive (2006/42/EC)
applies to all machinery placed on the EU market, including crane hooks.

EU EN coordinated standards (key standards):

• EN 1677-1 Lifting hooks – Part 1: General purpose forged hooks

• EN 1677-2 Lifting hooks – Part 2: Grades and dimensions of forged hooks

• EN 1677-5 Lifting hooks – Part 5: Testing and inspection of forged hooks

• EN 13001 Cranes – General design series of standards (related to load calculation)

EN 818-7 (Safety requirements for chains, hooks and accessories)

EN 13155 (Safety requirements for non-stationary cranes)

Is the hook marketed as a standalone product?

• If sold separately, a separate CE certification is required.

• If it is part of a crane, it can be certified along with the entire machine.

Material requirements (EN 1677-1):

• Forged or rolled steel (such as C45, 34CrMo4, etc.) must be used, and cast iron is prohibited.

• Materials must provide material certificates (level 3.1 or 3.2) .

Structural requirements :

• The hook mouth and hook throat dimensions comply with EN 1677-2.

• A latch must be provided (unless exempted).

Load calculation (EN 13001):

• Safety factor ≥ 4 (dynamic loads require additional calculation).

Static load test (EN 1677-5):

• 200% WLL (Working Load Limit) static load test , hold for 1 minute, no permanent deformation or cracks.

Non-destructive testing (NDT) :

• Magnetic particle testing (MT) or ultrasonic testing (UT) to ensure there are no internal defects.

Fatigue testing (optional, high risk applications):

• Simulate 10^6 cycles of loading to ensure no crack propagation.

Key documents :

• Product drawings (including dimensions, materials, and heat treatment processes).

• Test reports (static load, NDT).

• Risk assessment report (ISO 12100).

• User manual (including installation, inspection and maintenance requirements).

Is a Notified Body required?

• If the hook is a dangerous mechanical accessory (e.g. for lifting personnel), NB agency intervention is required (e.g. TÜV, BV, SGS).

• If it is used for normal lifting only, the manufacturer can self-declare it (but third-party audit is recommended).

The CE mark must be clearly and permanently marked on the hook or nameplate.

The Declaration of Conformity (DoC) must contain:

• Manufacturer Information

• Product Model

• Applicable Directive (2006/42/EC)

• Reference standards (e.g. EN 1677-1)

Solution :

• Provide material chemical composition and mechanical properties report (such as 3.1 grade material certificate).

• Or conduct material re-test (third party laboratory).

Applicable situations :

• The hook is used in closed systems (e.g. inside a crane, without risk of unhooking).

• The reasons for the exemption must be stated in the technical documentation.

Possible causes :

• No NDT testing was performed.

• The technical documentation is incomplete (missing EN 1677-5 test report).

• Solution : Conduct additional tests and improve documentation.

CE certification is a mandatory requirement for hooks to enter the EU market and must comply with the EN 1677 series of standards.

Key steps : Material certification → Static load test → NDT inspection → Technical documents → CE mark.

High-risk applications (such as personnel lifting) require the involvement of a Notified Body (NB) .

Manufacturers need to continue to monitor standard updates (e.g. EN 1677-1:2024 may increase NDT requirements).

Cooperate with professional certification bodies (such as TÜV, SGS) to ensure first-time approval.

Check the condition of the hooks regularly to ensure long-term compliance.