Technical Knowledge
Useful information on lifting anchors, Fastening technology, and shuttering systems
Safely lifting, transporting, and securing structural elements requires suitable engineering systems and meticulous planning. This applies equally to precast concrete elements and prefabricated timber components.
BGW-Bohr GmbH develops, manufactures, and supplies lifting and fastening systems for the construction industry. Our product portfolio includes lifting anchor systems for concrete and timber components, fastening elements, and magnetic shuttering and holding systems for precast concrete production.
On this page, we address frequently asked questions regarding the various systems, their areas of application, and fundamental technical specifications.
This information is provided for general guidance. For the selection, structural design, installation, and application of a specific product, the manufacturer’s applicable documentation is authoritative.
What are lifting anchor systems?
Lifting anchor systems are engineered to attach prefabricated components to suitable lifting points during manufacturing, loading, transport, and assembly.
Depending on the configuration, such a system comprises a lifting anchor and a matching lifting gear item, along with any further system components.
Selection depends, among other factors, on the component material, weight, geometry, intended rigging method, and the acting loads.
BGW-Bohr provides diverse lifting anchor systems for applications in precast concrete construction and timber engineering.
Which lifting anchors are used in precast concrete construction?
A variety of lifting anchor systems are employed in precast concrete construction.
These include, for example, threaded lifting anchors, spherical head anchors, spread anchors, and dedicated lifting anchors for double walls or other component geometries.
The systems differ in their structural design, their anchorage within the element, and their corresponding lifting gear.
The suitability of a system depends on specific project demands and product-related specifications.
What are threaded lifting anchors?
Threaded lifting anchors are transport anchors featuring a threaded connection designed to mate with compatible lifting gear.
They are used in suitable precast concrete components to provide a defined lifting point for handling operations.
Various structural designs and thread variants are available.
Selection must account for factors including installation conditions, load direction, component characteristics, and the specifications of the respective system.
Lifting anchors and lifting gear must only be used in the designated and approved combinations.
What are spherical head anchors?
Spherical head anchors are lifting anchors featuring a specially shaped anchor head.
For rigging, a compatible lifting gear is used that engages the anchor head.
Such systems are used, among other things, for lifting and transporting precast concrete components.
Permissible application depends on the respective anchor design, the installation situation, and the loads.
The technical specifications of the specific lifting anchor system are decisive.
What are double-wall lifting anchors?
Double-wall lifting anchors are intended for handling suitable double-wall elements.
Double walls typically consist of two precast concrete shells connected to each other by connecting elements.
When lifting and transporting such components, the special geometric and structural properties must be taken into account.
BGW-Bohr offers various lifting anchors and system solutions for this purpose.
The selection and arrangement of the rigging points must be carried out on the basis of the respective technical documentation.
Which factors are important when selecting a lifting anchor?
Several factors must be considered when selecting a lifting anchor.
These include, in particular, the component weight, the component material, the geometry, the number and arrangement of the rigging points, and the intended lifting and transport operations.
The direction of the forces occurring and possible dynamic loads also play a role.
In the case of concrete components, the relevant concrete properties and the structural requirements must also be observed.
For timber components, the specific requirements of the respective timber transport system apply.
Selection and dimensioning must not be based solely on general product descriptions.
What is lifting gear?
Lifting gear establishes the connection between the rigging point provided in the component and the further lifting equipment.
Depending on the transport system, for example, wire rope loops, ring clutches, or special lifting clutches can be used.
Not every piece of lifting gear can be combined with every lifting anchor.
Therefore, the system compatibility, the condition of the lifting gear, and the respective manufacturer’s instructions must be observed.
The required inspections and the specifications for safe operation must also be complied with.
Which lifting anchor systems does BGW-Bohr offer for timber construction?
For timber construction, BGW-Bohr offers, among others, the HFA precast timber anchor system and the KKAH timber transport anchor system.
These systems are used for handling suitable prefabricated timber components and differ in their design and application requirements.
Which solution is suitable must be checked on the basis of the specific component situation and the respective installation and use instructions.
Further information on the systems can be found in the product catalogs and technical documentation from BGW-Bohr.
What is the HFA precast timber anchor system?
The HFA precast timber anchor system is a lifting anchor system for suitable precast timber components.
BGW-Bohr offers various system designs for this, including a standard version as well as variants for special requirements.
The system includes coordinated components for the rigging and lifting of timber components.
The permissible operating conditions result from the associated technical documentation.
Particularly in the case of special load directions, the respectively intended system variants and application conditions must be taken into account.
What is the KKAH timber transport anchor system?
The KKAH timber transport anchor system is a system for lifting suitable timber components.
It consists of a designated timber transport anchor screw and a matching spherical head lifting clutch.
The connection enables the rigging of the component for the intended lifting operation.
For use, the specifications for screw assembly, load direction, and the use of the lifting gear must be observed, among other things.
The manufacturer’s technical documentation defines the permissible operating conditions.
Can lifting anchors for concrete also be used in timber construction?
Lifting anchor systems are designed for specific materials and application conditions.
A lifting anchor designed for precast concrete components must therefore never be automatically utilized for timber elements.
Concrete and timber differ fundamentally in their mechanical properties and in the way loads are introduced into the structural member.
Appropriate, fully certified systems designed for timber construction must be utilized accordingly.
BGW-Bohr provides dedicated timber precast and timber transport anchor systems engineered for this purpose.
What is Fastening technology in precast concrete construction?
Fastening technology refers to components and systems designed to connect, secure, or anchor structural elements.
In precast concrete construction, applications frequently employ Anchor Channel systems, threaded inserts, connecting loops, and other cast-in components.
Depending on the application, they serve to join structural components or secure auxiliary assemblies.
Selection depends on the intended structural function and technical specifications.
What are Anchor Channel systems used for?
Anchor Channel systems enable the reliable connection of suitable structural elements or assemblies to a prepared anchorage.
They can, for instance, be cast directly into concrete components.
In conjunction with compatible fasteners, additional building components can be installed efficiently.
Permissible loads and application parameters depend on the specific channel system and its anchorage method.
The corresponding technical documentation must be observed during planning and execution.
What is the function of connecting elements and cast-in parts?
Connecting elements and cast-in parts serve various structural and assembly functions within a building framework.
They can be used, for example, to join structural elements, anchor secondary components, or prepare for subsequent on-site assembly.
Depending on the application, these include connecting loops, threaded components, and other specialized fastening hardware.
Professional execution requires verifying that the selected product is suitable for the planned application.
What are holding magnets and shuttering magnets?
Holding magnets and shuttering magnets are primarily deployed in precast concrete production.
They are used to position and secure suitable formwork elements, recess formers, or cast-in parts onto magnetizable casting surfaces.
These systems utilize strong magnetic holding forces.
Depending on the operational setup, various geometries and clamping systems are utilized.
BGW-Bohr supplies a comprehensive range of holding magnets, shuttering magnets, and complementary system accessories.
What are the advantages of magnetic shuttering systems?
Magnetic shuttering systems allow flexible positioning and secure clamping of compatible formwork profiles.
They significantly simplify formwork assembly and changeover processes.
Particularly when producing varying component geometries, this optimizes production workflows in precast concrete plants.
Actual suitability depends on the shuttering setup, contact surface quality, and acting forces.
The manufacturer’s instructions are authoritative for proper application.
Where are holding magnets used in precast concrete plants?
Holding magnets can be deployed for diverse positioning and clamping tasks.
Examples include securing shuttering elements, affixing recess formers, or positioning suitable cast-in items.
Specialized magnet configurations are available for different production tasks.
Selection is based on the intended operational use and the technical properties of the respective magnet.
Why are technical data sheets and installation instructions important?
Technical data sheets and installation guides contain essential details regarding product properties, operational conditions, and proper application.
For lifting anchors, they may specify installation criteria, permissible load capacities, and compatible lifting gear.
For fastening elements and shuttering systems, product-specific specifications are paramount.
General product brochures do not substitute for this documentation.
Prior to use, the documents valid for the specific product must be consulted.
Why are test certificates and technical approvals important?
Test certificates, test reports, and other technical approvals document specific examinations or evaluations of a product or system.
They can contain important information about tested properties and defined operating conditions.
Which verifications are required or decisive depends on the respective application and the applicable requirements.
It should be noted that different document types do not automatically have the same legal or technical significance.
BGW-Bohr provides technical documentation and verification for numerous products.
Where can I find technical documentation from BGW-Bohr?
Technical documentation and downloads for the various product areas are available on the BGW-Bohr website.
These include product information, data sheets, installation and use instructions, as well as further technical approvals.
The currently valid manufacturer’s documentation is decisive for the selection, dimensioning, and use of a specific product.
BGW-Bohr GmbH – Lifting and fastening systems for the construction industry
BGW-Bohr GmbH, based in Steinfeld, develops, produces, and sells technical systems for the construction industry.
The range includes lifting anchor systems for precast concrete and timber components, fastening and connection technology, and magnetic shuttering systems.
The company was founded in 1986 and has many years of experience in the development and provision of technical solutions.
The product areas are aimed in particular at companies in the precast concrete industry, timber construction, and other commercial users.
Do you have questions about a product or technical application?
For detailed information on lifting anchor systems, precast timber anchors, Fastening technology, or magnetic shuttering systems, BGW-Bohr is at your service.
BGW-Bohr GmbH
Kastanienstraße 10
97854 Steinfeld
Phone: +49 9359 90950
Email: info@bgw-bohr.de
For further details on our products and technical documentation, please visit our website.
