Clamping Levers with Eccentrical Cam

A clamping lever with eccentrical cam uses an eccentric lever in combination with a thread to clamp workpieces quickly, precisely, and without torque. When the lever is turned, the eccentric mechanism moves along its cam track until the clamping point is reached. A high leverage ratio is reached immediately before this clamping point so that a strong clamping effect is achieved with little effort. The eccentric mechanism is self-locking – so the tension remains stable and secure even without constant force being applied.

Clamping principle for clamping levers with eccentrical cam

• The tension lever is brought into its starting position.
• When the lever is turned, the surface of the eccentric mechanism moves against the part to be clamped.
• Just before the final clamping point, the force transmitted increases drastically due to the eccentric effect.
• Once the clamping point is reached, the clamping remains self-locking without slipping.
• To release, a short lever movement in the opposite direction is sufficient – the clamping lever with eccentrical cam releases the workpiece immediately.

What does this mean in practice?

Workpieces or components can be clamped especially quickly and easily and released just as quickly – ideal for applications involving frequent changeovers, test setups, or changing production positions. Clamping levers with eccentrical cam such as GN 927, GN 927.3, GN 927.2, and GN 418.3 thus enable enormous time savings and ensure uniform, secure clamping forces without time-consuming retightening. This way, you can increase precision and process reliability, making clamping levers with eccentrical cam a solid solution especially in handling solutions, fixture construction, and manufacturing cells.

Advantages and typical applications

• Fast, tool-free clamping and releasing
• Self-locking effect: no loosening during operation
• Compact design for confined installation spaces
• Flexibly adjustable to workpiece thickness via thread adjustment
• Suitable for repeated, frequent clamping operations in mechanical engineering, fixture construction, and device manufacturing

Clamping levers with eccentrical cam are especially well suited for applications where workpieces must be clamped and released quickly, safely, and without great effort. They are ideally suited where torque-free clamping and non-positive holding are required – for example, in fixture construction, in assembly and testing devices, or in situational clamping tasks in mechanical engineering. The high leverage ratio at the clamping point and the self-locking mechanism ensure that the workpiece remains securely clamped at all times without accidentally coming loose.

Typical areas of application for clamping levers with eccentrical cam

• Jig construction: Simple repetitive clamping of workpieces without adjustment effort.
• Assembly workstations: Rapid changing of workpieces and flexible adaptation to different geometries.
• Testing applications: Secure, precise holding of test objects during measurement processes.
• Small series and prototype construction: Quick clamping of changing components with high repeatability.
• Automation environments: Time-optimized clamping with short downtimes.

Practical benefits of clamping levers with eccentrical cam

Thanks to the uncomplicated clamping mechanism, you can operate the clamping lever with eccentrical cam with minimal effort and precisely exert the correct clamping force. Since the system operates without torque, you can avoid putting pressure on the edges or deforming the workpiece. Clamping levers with eccentrical cam such as the GN 927 series, GN 927.3, GN 927.4, GN 927.5 as well as the plastic variants GN 926 and GN 926.1 allow for versatile and application-specific use – even with sensitive surfaces or frequent clamping operations.

Recommendation for selecting suitable clamping levers with eccentrical cam

• If you require high chemical resistance or corrosion protection, choose stainless steel variants such as GN 927.7 or GN 927.5.
• For light clamping tasks, compact plastic versions such as GN 926 or GN 926.1 are suitable.
• If you need to switch between different workpieces especially quickly, models with a screw are convenient and flexible to use.

This allows you to react flexibly to changing production requirements with the right clamping lever with eccentrical cam and achieve high process reliability as well as ease of operation in daily use.

The individual assembly steps and the correct adjustment of the clamping lever with eccentrical cam are shown in detail in the following application video. The entire procedure is clearly explained there:

Clamping lever with eccentrical cam GN 927 – toggle clamp for precise & forceful clamping

Please observe the instructions for assembly and adjustment shown in the video to ensure proper function and safe operation.

Clamping levers with eccentrical cam are available in various material and design variants: levers made of zinc die casting, steel, or stainless steel as well as plastic versions are available to choose from, each with different thread and screw variants. This allows you to tailor the suitable solution exactly to your requirements in mechanical engineering, plant construction, or automation technology.

Overview of materials for clamping levers with eccentrical cam

• Lever made of zinc die casting: Especially robust and versatile. You will find this version in the GN 927 and GN 927.4 models – each with plastic contact washers or stainless steel threads/screws.
• Steel lever: Suitable when high stability is required. Models GN 927.3 as well as the versions GN 927.2 (with internal thread or screw) rely on this material variant.
• Stainless steel lever: Offers the best corrosion resistance for hygiene- or weather-critical applications. You will find this variant in GN 927.5 and GN 927.7, both with internal thread or screw.
• Plastic lever: Ideal for lighter clamping tasks or applications with increased requirements for chemical resistance. Available for GN 926 and GN 926.1 – each with a steel or stainless steel bushing or with a screw.
• Steel eccentric clamping screws: The GN 418.3 are made of steel and feature a practical internal hexalobular drive for fast, comfortable clamping with tool support.

Design variants that you can combine flexibly

• With internal thread or with screw: Depending on the series, you can choose between an internal thread version for direct connection or a screw version for easy assembly. As a result, the clamping levers with eccentrical cam adapt perfectly to your specific design and make integration easier.
• Various contact plates: For GN 927, the contact washers are made of plastic, for example – this protects sensitive surfaces during the clamping process and increases process reliability.
• Bushing variants made of steel or stainless steel: The GN 926 and GN 926.1 clamping levers with eccentrical cam feature specially matched bushings to achieve either maximum stability (steel) or the highest corrosion resistance (stainless steel).
• Eccentric clamping screws for tool operation: GN 418.3 is made entirely of steel and features an internal hexalobular drive. This allows you to clamp workpieces quickly and securely using standard tools – ideal for serial production and automation applications.

Product selection: How to find the right version of clamping levers with eccentrical cam for your needs

• For environments prone to corrosion: Use stainless steel variants such as GN 927.5 or GN 927.7.
• For quick-change assemblies: Choose plastic variants or models with tool operation, e.g. GN 926, GN 926.1, or GN 418.3.
• For high stability: It is best to choose clamping levers with eccentrical cam that have levers made of steel or zinc die casting, such as GN 927, GN 927.2, or GN 927.3.
• If there are sensitive surfaces that need to be protected: Use models with a plastic contact washer such as GN 927.

This allows you to find the right version of clamping lever with eccentrical cam for almost any clamping task in a technical environment and increases convenience as well as process reliability in your application.

Ganter offers a wide selection of sizes and clamping ranges for clamping levers with eccentrical cam. Differently dimensioned versions are available, depending on the product variant – whether with internal thread or screw, in steel, stainless steel, or plastic. This allows clamping levers with eccentrical cam to be optimally adapted to the available installation space and the respectively required clamping travel distances.

Sizes and clamping ranges for clamping levers with eccentrical cam

• Clamping levers with eccentrical cam of types GN 927, GN 927.2, GN 927.3, GN 927.4, GN 927.5, and GN 927.7 are available in several sizes. Typical clamping travel distances are between 2 mm and 4 mm, depending on their design – this allows for convenient and precise clamping of workpieces of various thicknesses.
• The sizes are indicated by the lever length (44 - 101 mm). This allows you to easily adapt the components to your requirements with regard to available space and application of manual force.
• With the plastic clamping levers with eccentrical cam GN 926 and GN 926.1, you will find compact designs for small clamping applications.
• The eccentric clamping screw GN 418.3 serves as a specialized solution that covers a particularly flexible adjustment range.

How do you select the right size and clamping range?

• Select the size based on your available installation space and the desired manual force.
• The clamping range depends on the thickness or the height difference of the workpiece to be clamped – clamping levers with eccentrical cam offer a defined lever travel for this purpose.
• If possible, select the size for which the clamping travel of your application falls within the middle range of the lever travel. This allows you to flexibly compensate for manufacturing tolerances and changing workpiece thicknesses.

Practical aspects: What does this mean for your application?

Due to the multitude of sizes and clamping ranges for clamping levers with eccentrical cam such as GN 927, GN 927.2, or GN 927.7, you can select the suitable variant for almost any clamping task in jig construction, assembly, or quick workpiece clamping. This enables you to clamp safely and reliably, compensate for tolerances, and reduce assembly times. You can react to varying requirements with great flexibility – ideal if workpiece dimensions change regularly or setup times are to be minimized.

• The selection of a suitable clamping lever with eccentrical cam depends on several factors. First, the size of the tension lever should be chosen based on the application at hand and the space available.

• Another important criterion is the required load capacity of the clamping lever with eccentrical cam. You can find the permissible load values in the corresponding PDF overview: Clamping and manual forces in clamping levers with eccentrical cam

• Also, make sure that the correct thread size is selected. Clamping levers with eccentrical cam are available with threads from M3 to M12 and can thus be used for various areas of application.

• The required thread length is equally important. Versions with thread lengths from 6 to 60 mm are available, depending on the application.

• Last but not least, the material also plays an important role. The appropriate material should be selected based on environmental conditions and requirements for corrosion resistance, stability, and weight.

Clamping levers with eccentrical cam are used primarily in industries and applications where components need to be repeatedly clamped and released – quickly, securely, and with minimal effort. These applications mainly arise in mechanical engineering, plant engineering, and automation technology.

Typical industries for clamping levers with eccentrical cam

• Mechanical engineering: For setup processes in machining centers or fixture construction, clamping levers with eccentrical cam like GN 927 or GN 927.3 are ideal because they offer fast, torque-free clamping. This allows you to flexibly adapt production systems to new tasks.
• Plant construction: When setting up automation and assembly lines, clamping levers with eccentrical cam like GN 927.7 or GN 927.5 ensure a secure hold even with varying component sizes. This allows components to be positioned conveniently and released at any time.
• Automation technology: In modular systems, clamping levers with eccentrical cam such as GN 926 or GN 926.1 ensure quick securing of sensors, workpieces, or guide elements.
• Measurement technology: Test setups benefit from releasable and repeatable clamping, such as with GN 418.3 eccentric clamping screws. This allows you to flexibly prepare a variety of testing processes.

Areas of application for clamping levers with eccentrical cam

• Adjustment and holding devices in assembly lines
• Clamping units on test benches and measuring devices
• Assembly tables and flexible work tables for production
• Quick-clamping devices in production, such as for changing workpieces or tools
• Prototype construction and experimental setups where frequent retooling is required

Ganter offers CAD data and 3D models for all clamping levers with eccentrical cam for free download. This data is available directly on the respective product pages. You can easily download the selected clamping levers with eccentrical cam and integrate them into your design software.

Availability and use of CAD data for clamping levers with eccentrical cam

• Every product – for example GN 927 with external thread or GN 927.5 made of stainless steel – has a clearly visible CAD button on the detail page.
• You can either view the 3D model directly online or download it in the desired format (STEP, IGES, DXF, etc.).
• You can download the data without registering; however, for larger parts lists or to access additional features, an optional user account offers additional benefits.

Practical advantage in selection and design

• You can integrate clamping levers with eccentrical cam quickly and precisely into your design, even before a sample part is available.
• The direct availability of the 3D data prevents planning errors and reduces the risk of collisions or design problems.
• Ideal for mechanical engineering, automation, or prototype development, where maximum precision and rapid project progress are crucial.

This allows you to significantly accelerate your planning and react flexibly to changes in the design. For all clamping levers with eccentrical cam – whether made of steel, stainless steel, or plastic – Ganter thus offers maximum support in the design phase.

Clamping levers with eccentrical cam can also be manufactured in customized versions, especially for special requirements regarding lever shape, surface finish, or material selection. For the product family of clamping levers with eccentrical cam, Ganter generally offers the option of customization. This allows you to optimally adapt your clamping levers with eccentrical cam to the conditions of your application.

Customer-specific adaptations for clamping levers with eccentrical cam

• Adaptation of the lever shape: Levers can be designed according to specific ergonomic or design requirements. This improves operability in tight installation spaces or when wearing gloves. The result is significantly more comfortable handling.
• Surface modification: Customized solutions can be implemented if you require special coatings, color finishes, or a particularly durable surface. This allows you to adapt clamping levers with eccentrical cam to environmental requirements, such as hygiene regulations or corrosion protection.
• Material variants: In addition to the available standard materials (such as zinc die casting, steel, stainless steel, plastic), other versions for special operating conditions can often be created upon request.
• Dimensions and functional variants: The adaptation of thread types, lever lengths, or other functional parts is also possible if there is a specific need.

Procedure for customized solutions

You can submit your requirements directly to Ganter – ideally with technical drawings, parts lists, or a description of your use case. Our technical consulting team will check the feasibility together with you. Often, minor adaptations can be incorporated into serial production models, eliminating the need for time-consuming custom designs.

What does this mean in practice?

With the option to customize clamping levers with eccentrical cam from the GN 927 family and related standards, it is possible to optimize the fit, ease of use, and durability specifically according to your needs. This allows you to ensure proper functionality in mechanical and plant engineering while also meeting the specific design or safety requirements of your end customers. You can react flexibly to the requirements of your production systems or application – service included.

Recommendation for your project

Contact Ganter directly with your specific request and details regarding the desired customization. You will receive a technical assessment as well as a customized quote for the optimal clamping lever with eccentrical cam – precisely adapted to your application.

Clamping levers with eccentrical cam from Ganter stand for the highest quality, technical competence, and reliable availability. As a manufacturer with over 125 years of experience in the development and production of standard parts, Ganter offers solutions that are used worldwide in a wide variety of applications and industries.

Your advantages at a glance:

• High delivery availability: Around 98% of the product range is available directly from stock to ensure short delivery times.
• Internationally established: With partners in more than 80 countries, Ganter ensures worldwide support and reliable supply chains.
• Made in Germany: Development and production take place in accordance with the highest quality standards in Germany.
• Sustainability and durability: For over 125 years, Ganter has stood for long-term thinking, responsible action, and continuous innovation.
• Convenient procurement: All clamping levers with eccentrical cam can be ordered simply and conveniently via the Ganter webshop.
• CAD data in reliable quality, available free of charge and as a direct download without registration.
• Personal consultation on site: Our field service team is available to provide competent assistance if you need any help with the selection or implementation of your project. Further information and contact persons can be found on our Contact page.
• Technical support: For technical questions regarding products, applications, or designs, our technical sales team will be happy to assist you at the phone number +49 7723 6507-259.

When you choose Ganter, you’re choosing durable and precise solutions, as well as an experienced partner who will support you from the planning stage through to the completion of your project.