For years KWB sling chains have been synonymous for quality and a guarantee for absolute safety.
The traditional KWB brand originates from the chain forge „Kettenwerk Brückl“, an Austrian company with experience in chain production dating back centuries.
Since 2003 the KWB Star Alloy G 100 programme has been distributed successfully worldwide paving the way for the introduction of KWB‘s Sun Alloy G 120 range in 2016.
Constant extension and expansion of KWB‘s lifting product programs over years, today enable us to offer a streamlined and spot on range of products, tailored to meet the growing global demand for top-quality lifting equipment. More than suitable in use; totally reliable.
We offer quality at the highest level.
Our Sun, Star and Super Alloy sling chains and components fulfill maximum requirements with regard to profitability, safety, longevity, easy handling. KWB means safety in action.
Advantages:
• Use of high grade steels and alloys
• Production on specially developed bending and welding machines in Europe
• Process controlled heat and surface procedures
• BG approved – H29 number
• Continous quality control (ISO 9001, 9002) ongoing research and development of the product
• Worldwide distribution
• The longstanding experience of our employees
Advantages of Sun Alloy G 120
Durability: higher wear resistance due to increased hardness
Simple: smart and easy assembling of chain slings
Traceability: appropriate marking on chains & components
Quality: ISO 9OO1 certified company
Reliability: Decades of experience
Strong: 50 % higher load capacity compared to G 80, 20 % higher load capacity compared to G 100
e.g. 2-leg chain slings
Light: Obvious weight reduction and censequently easier handling
Economic: cheaper compared to G 80
Sun Alloy G 120 – Characteristics
Sling Examples
I GTKR/SUN - HKSB/SUN I GTVK/SUN - HKS/SUN
GTKR/SUN - HKSB/SUN
GTVK/SUN - HKS/SUN IV GTKR/SUN - HKSB/SUN
Example of Order Text:
GTVK/SUN - HKS/SUN
Chain Sun Alloy SUN 10 mm, 2 legs with Special Clevis Sub-Assembly GTKR/SUN and Clevis Sling Hook HKS/SUN, length 2,000 mm. SUN 10 II
Sub-Assemblies
7 9/32
8 5/16
10 3/8
13 1/2
16 5/8
GTVK/SUN 4-7
GTVK/SUN 4-8
GTVK/SUN 4-10
GTVK/SUN 4-13
GTVK/SUN 4-16
Page 11 Page 12 Page 13
GTKR/SUN 4-7
GTKR/SUN 4-8
GTKR/SUN 4-10
GTKR/SUN 4-13
GTKR/SUN 4-16
8 10 3/8 HKSB/SUN 10
HKS/SUN 10 13 1/2 HKSB/SUN 13
HKS/SUN 13 16 5/8
HKSB/SUN 16
HKS/SUN 16 Sling Hooks Page 11 Page 13 Page 13
RLSP/SUN 8
RLSP/SUN 10
RLSP/SUN 13 Page 14 Sub-Assemblies 3 & 4-leg
Sling Hooks
Chain
2 Special Clevis Sub-Assembly GTKR/SUN
4 Special Clevis Sub-Assembly GTKR/SUN
Sling Hooks
Clevis Sling Hook with Forged Safety Latch HKS/SUN
Clevis Self Locking Hook
SUN Alloy lashing
Load Binder RLSP/SUN
Lashing chain ZK/SUN
Spare Parts
Forged Safety Latch Kits for Clevis Sling Hooks
Pin Kit for Clevis Self Locking Hook & Special Clevis Sub Assembly & Sun Alloy
Safe: with the violet signal colour no risk of confusion with G 80
Durability: higher wear resistance due to increased hardness
Simple: easily adjustable with multi-function shortening hook
Traceability: appropriate marking on chains & components
Quality: ISO 9OO1 certified company
Reliability: Decades of experience
Strong: 25 % higher load capacity than G 80 allows the transition to smaller chain diameters
e.g. 2-leg chain slings
Light: with smaller chain dimensions considerable weight reduction compared to G-80, easier handling
e.g. with 2-leg chain slings 3 m length
Clear Identification Certificate
A test certificate is issued for all our products which certifies all the specified characteristics.
Star Alloy G 100 – Characteristics
Chain Quality:
Star Alloy SA/S Corresponds with ASTM A973/A973M-01 & EN 818-2 but with higher working load limit (permissible operating temperature max. 200° C) & machinery directive 2006/42/EC
Star Alloy Plus PAS SAPP/S Corresponds with PAS 1061 & machinery directive 2006/42/EC
Star Alloy Plus + SAP/S Corresponds with EN 818-2 with a higher load capacity & machinery directive 2006/42/EC
Stress at Load Capacity Limit: 250 N/mm2
Test Stress: 625 N/mm2 corresponds to 2.5 times the load capacity
Breaking Stress: 1,000 N/mm2 corresponds to 4 times the load capacity
Breaking Elongation: min. 20 %
Bending acc. to PAS 1061/EN 818-2: 0.8 x nominal diameter
Permissible Working Temperature:
Grade Marking:
Surface:
Working Load Tag:
Star Alloy SA/S max. 200 °C
Star Alloy Plus + SAP/S max. 380 °C
Star Alloy Plus PAS SAPP/S max. 380 °C Components max. 380 °C
Star Alloy SA/S 10 at a spacing of approx. 300 mm up to dim. 16 (others 900 mm)
Star Alloy Plus + SAP/S 8S at a spacing of approx. 900 mm up from dim. 19
Star Alloy Plus PAS SAPP/S 10 at a spacing of approx. 300 mm up to dim. 16 Components 10 (some components are still marked with 8S)
Star Alloy SA/S Purple varnished
Star Alloy Plus + SAP/S Violet varnished
Star Alloy Plus PAS SAPP/S Violet varnished Components Violet powder coated
Star Alloy
Star Alloy Plus PAS/ Star Alloy Plus+
The performance concerning stress crack corrosion is identical to G 80
Asymmetric
Load Distribution
In this case the working load limit must be reduced by at least one chain leg, for example a 3-leg or 4-leg sling is to be classified as a 2-leg chain sling. In case of doubt, it must be supposed that only one of the chain legs carries the entire load.
Edge Loads R = larger than 2x chain Ø R = larger than chain Ø R = chain Ø or smaller
Sling Examples
Example of Order Text:
Chain Star Alloy SA/S 10 mm, 2 legs with Masterlink A/S and Eye Sling Hook with Forged Safety Latch HS/S, length 3,000 mm assembled with Connecting Link V/S.
Master Links & Sub-Assemblies 1-leg
Master Links & Sub-Assemblies 2-leg
Master Links & Sub-Assemblies 3 & 4-leg
Connecting & Shortening Elements
Sling Hooks
Star Alloy Chain and Star Alloy Plus+/PAS Chain
If the chain slings are used in more demanding conditions (e.g. high temperature, asymmetric load distribution, edge loads, impacts) the maximum load capacities in the table must be reduced. Please use the load factors on page 19 and refer to the specification in the user information.
Master Links, Sub-Assemblies & Accessories
Master Link A/S
*) Please refer to table „Maximum working load
Special Master Link T/S
Special Sub-Assembly GT/S
Similar to G/S but also suitable for larger crane hooks and special hooks.
*) Please refer to table „Maximum working
Special Sub-Assembly TG/S
For 4-leg slings, when shortening hooks are to be assembled seperately, and for slings with thimbled eyes.
*) Please refer to table „Maximum working load Limit“ on page 24 when using in chain slings.
Special Master Link Assembly GL/S
1 Special Clevis Sub-Assembly GTVK/S
2 Special Clevis Sub-Assembly GTVK/S
4 Special Clevis Sub-Assembly GTVK/S
For 3 and 4-leg slings with shortening element.
Connecting Link V/S
Webbing Coupling Link RSK/S
Link for webbing slings mounted in one V/S-half. Reduced risk of damage due to wide surface.
Shortening Hook VK/S
Can be mounted in any chain leg due to Clevis part. No WLL reduction.
Eye Grab Hook P/S
For shortening and for any slings that must not tighten. Reduction of load
not
due to 4-fold safety.
Eye Grab Hook with Safety Pin PS/S
Clevis Grab Hook PK/S
For shortening and for slings that must not tighten.
Reduction of load capacity not required due to 4-fold safety.
* At KWB, the highest priority is placed on user-friendly product design, with a strong focus on market requirements. As a result, the design of parallel hooks in the KWB range is being gradually updated. The new design for sizes 6 to 16 features lateral support saddles that provide optimal support for the KWB chain. This ensures that the chain now sits securely at the base of the hook.
Exception: From size 19/20 onwards, the design has not yet been updated. Therefore, for these sizes, the chain must not rest at the base of the hook for technical reasons.
Clevis Sling Hook with Forged Safety Latch HKS/S
Clevis Self Locking Hook HKSB/S
Closes and locks automatically.
Clevis Foundry Hook GHK/S
For applications where jaw size „g“ of the HKS/S hook is inadequate; mainly in foundries. Before using the hook, check whether hooks without safety latch are allowed to be used for this particular application.
Eye Sling Hook with Forged Safety Latch HS/S
Eye Self Locking Hook HSB/S
Large eye, therefore suitable for ropes and webbing slings. Automatically closes and locks under load, and requires the load to be grounded before load can be released. Not for welded system!
Swivel Safety Hook WSB/S
Standard type can not be swiveled when loaded. Not for welded system!
Foundry Hook GH/S
Special Accessories
Sheet Metal Plate Hook BH/S
Lashing Chain Star Alloy SA/S – Measurements, Load Values, Weights
Ratchet Load Binder RLS/S
Spare Parts
Forged Safety Latch Kits for Eye Sling Hooks and Clevis Sling Hooks
Pin Kits for Clevis Sling Hook and Shortening Hook
Pin Kit for Clevis Self Locking Hook
3/8 KBG - HKSB/S 10
1/2 KBG - HKSB/S 13
HKSB/S8
HKSB/S 10
HKSB/S 13 16 5/8 KBG - HKSB/S 16
HKSB/S 16
Pin Kit for Connecting Link and Webbing Coupling Link
Trigger Kit for Self Locking Hooks
Safety Catch Kit for Eye Grab Hook with Safety Pin PS/S
Working Load Tag with Wire Rope Binder and Fastener
Star Alloy G 100 –whenever 100 % is required, the best answer is to trust in a star.
Super Alloy G 80 – Characteristics
Chain Quality:
N/mm2 – corresponds to 2.5 times the load capacity Breaking Stress:
N/mm2 – corresponds to 4 times the load capacity Breaking Elongation:
Bending
Clear Identification
Sling Examples
Example of Order Text:
SA 10 II A - HS 3000 V
Connecting & Shortening Elements
Special Accessories
Sling Hooks
Ratchet Load Binder with Grab Hooks
Ratchet Load Binder
Super Alloy Chain
If the chains are used in more demanding conditions (e.g. high temperature, asymmetric load distribution edge loads, impacts) the maximum load capacities in the table must be reduced, Please use the load factors on page 38 and refer to the specification in the user information,
Master Links, Sub-Assemblies & Accessories
Special Master Link T
*) Please refer to table „Maximum Working Load Limit“ on page 42 when using in chain
Sub-Assembly G
*) Please refer to table „Maximum Working Load Limit“ on page 42 when using in chain slings.
Unilock Connecting Link U
Warning Instructions:
• only load the inside chain
• only to be used with safety device
• make sure that the chain fits properly
* At KWB, the highest priority is placed on user-friendly product design, with a strong focus on market requirements. As a result, the design of parallel hooks in the KWB range is being gradually updated. The new design for sizes 6 to 16 features lateral support saddles that provide optimal support for the KWB chain. This ensures that the chain now sits securely at the base of the hook.
Exception: From size 19/20 onwards, the design has not yet been updated. Therefore, for these sizes, the chain must not rest at the base of the hook for technical reasons.
Clevis Connector KVS
1) clevis connector with bent hitch pin, see figure
Eye Grab Hook P *
Clevis Grab Hook PK *
Eye Sling Hook with Forged Safety Latch HS
Clevis Sling Hook with Forged Safety Latch HKS
Eye Self Locking Hook HSB
Clevis Self Locking Hook HKSB
Foundry Hook GH
Special Accessories (Note Working Load Limits!)
Lashing Chain Super Alloy SA acc. EN 818-2 – Measurements,
Ratchet Load Binder with Grab Hooks RLSP
Only for lashing. Not for lifting purposes!
Only for lashing. Not for lifting purposes!
Spare Parts
Forged Safety Latch Kit for Clevis and Eye Sling Hooks
Trigger Kit for Self Locking Hooks
Load Pin Kit for Clevis Self Locking Hook
Load Pin Kit for Clevis Sling Hook and Shortening Clutch
Load Pin Kit for Clevis Shortening Hook PK
Load Pin Kit for Connecting Link
Screw Set for Omega Shackle VU
Working Load Tag with Wire Rope Binder and Fastener
User Information G12, G10, G8
General
KWB sling chains and accessories can be used for general lifting purposes acc. EN 818-4. Chains should only be used by trained personnel, who have read and understood the instructions for use. KWB sling chains and components should not be altered e.g. twisting, grinding, removing of parts and drilling. The surface of the chains and accessories should not be subjected to acids or caustic solutions. If necessary please contact the KWB technical department.
Only use the KWB chains and accessories up to the indicated temperature. Should the temperature be exceeded the reduction of the load capacity must be taken into consideration (see pages 8, 19, 38). In the event of temperatures outside this range, do not use the chain slings.
Do not use KWB lifting chains and accessories in acids, alkalines or chemicals or expose them to their fumes. Important: Certain production procedures release acids and or fumes. If necessary please contact KWB. In especially dangerous conditions (e.g. offshore applications, lifting of persons or potentially dangerous loads i.e. molten metals, corrosive materials, nuclear substances) the working load limit must be adjusted according to the risk level by an expert.
Inspection & Maintenance
Before using any lifting equipment for the first time please check the following:
- The sling chain corresponds exactly to the order.
- The test certificate or certificate of conformity have been supplied.
- Marking & working load limit of the chain correspond with the information on the test certificate or certificate of conformity.
- All the data regarding the sling chain has been entered in a register for lifting equipment, if required.
- Before use check the chains for visible damage or signs of wear. In case of damage do not use the chains. In case of doubt likewise.
- Sling chains depending on use should be inspected by an expert once a year i.e. after unusual events that could cause impairment of the chain sling.
- Every two years it is recommended that the chain be subjected to a load test 1.5 times the working load limit, followed by a visual inspection.
When one or more of the following criteria is fulfilled, the chain must be taken out of use:
- Broken link.
- Missing working load tag on the chain sling or illegible marking on the tag.
- Elongation of the chain. The chain must be discarded if t >1.05 tn (see catalogue).
- Wear: Wear is determined as the mean value of two measurements of diameters d1 and d2 carried out a right angle (see drawing). The chain must be discarded.
dm = d1 + d2 < 09 dn 2
- Cuts, notches, grooves, surface cracks, excessive corrosion, discoloration due to heat, signs of additional welding, twisted links or other faults.
- Missing i.e. non-functioning safety device or signs of widening of the hook i.e. noticeable enlargement of the opening or other forms of deformation.
Some of the imagery featured in the catalog are artistic depictions and do not show the actual application of the products.
V, RSK
Unilock Connecting Link U Bolts
Clevis Bolts and Bolts for Connecting Links + Webbing Coupling Links
KWB chain slings should only be repaired by qualified personnel.
Records of the inspections and repairs must be kept on file for the entire service life of the chain sling. KWB chain slings should be stored in dry condition & protected from corrosion (preferably oiled).
Correct Use of Chain Slings
KWB chain slings should only be used with the angle of inclination indicated on the working load tag. Avoid angles of inclination under 15°. Never use the chain slings with an angle of inclination exceeding 60°. If KWB chains are guided over edges protective padding should be used to avoid damage or the load capacity reduced (see pages 8, 19, 38). But if chains looped at a beam or other round shaped loads the diamater should be minimum thrice the chain pitch. For smaller diameters the WLL of the chain must be reduced by 50 %.
In cases of possible impact load the working load limit of the KWB chains should be scaled down acc. to the table on pages 8, 19, 38. Impact/shock can be defined as follows:
- Slight impact: arises e.g. when the lifting or lowering movement is accelerated.
- Medium impact: occurs e.g. when the chain slips during adjustment to the shape of the load.
- Strong impact: arises e.g. when the load falls into the unloaded chain.
KWB lifting chains and components are rated according to regulations for 20,000 load cycles. At high dynamic forces there may nevertheless be a risk of damage to the chain and accessories. According to the employer´s liability insurance association Metall Nord Süd this risk may be prevented if the stress at load capacity limit is reduced by using a larger chain dimension.
The load capacities of KWB chain slings are defined with the assumption that the load of the individual chain legs is distributed symmetrically. The load can still be considered symmetrical when all the following conditions are complied with:
- The load is smaller than 80 % of the indicated working load limit.
- The angle of inclination of all chain legs is not less than 15°.
- The angle of inclination of all chain legs are equal or deviate max. 15° from each other.
- In the case of 3- and 4-leg chain slings, the corresponding angles in the sling level deviate max. 15° from each other.
Should these parameters not be met, then the load is considered asymmetric and an expert must be called to evaluate the lifting process. In case of doubt the load capacity must be reduced to that of a single-leg chain sling. Individual chain legs which are not in use must be hung back into the master link and the working load limit reduced accordingly.
