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Register here for the Liebherr Performance Days America, March 09-11, 2021
You can discover our gear technology innovations conveniently from your office or home.
Quality gear cutting machines by Liebherr help you to get the most out of your gears. Find out about Liebherr-Verzahntechnik’s entire product portfolio at the Liebherr Performance Days.
in which you can virtually experience our products.
in which our employees present our systems and their highlights to you.
with our experts, who will show you the potential our automation solutions have for cost saving and quality and efficiency enhancement.
Schedulewith our employees, where you can receive the information that is specifically important for you.
by appointment, during which you can discuss your requirements and needs in detail.
Generating grinding, profile grinding, and internal grinding in one machine
Generating grinding workpieces up to module 14 mm
Topological generating grinding and profile grinding
Machine column and steady column axis travel can be extended for machining of long shafts and for internal grinding
Flexibility is highly important to job shops and individual part manufacturers. The new LGG series has been specially designed for universal use, as well as for large serial production. It combines the three technologies of generating grinding, profile grinding, and internal grinding in one machine. Thanks to this technological diversity, Liebherr offers the universal user maximum benefit and a secure investment for the future. The machine can be configured for the individual application so that it can be optimally used for the production of large batch sizes. This can be done, for example, by an external automation system using a plastic chain conveyor or robot system.
The LGG is the most powerful generating gear grinding machine of its class on the market. With the new GH 320 CB gear grinding head, it is now possible to machine workpieces up to module 14 mm to an excellent quality in a highly economically way. The extended axis travel allow the machining of long shafts and at the same time improve the internal grinding of deep workpieces. The LGG 700 M is a manual gear grinding machine that can generating grind workpieces up to 500 mm and profile grind workpieces up to 700 mm.
- Compact footprint
- Short machining times
- Integrated automation system
- High-performance spindle with internal coolant feed
- Roughing and finishing tools
- For additional functions such as turning, drilling, milling and measuring
- Cluster machining with several tools
- Skiving and chamfering in one machine
- Chamfering during the machining process
- Burr-free workpieces
The new generation of gear skiving machines features an integrated tool changing system with 12 storage locations. This enables additional SkivingPlus functions such as turning, drilling and milling. This significantly increases the system’s added value. Short set-up times are ensured by the integrated tool measuring device. The unique LK 180/280 gear skiving machine combines maximum productivity with high flexibility.
The skiving³ concept includes the machine, the technology and the optimally designed tools. This ensures the best solution for each process.
Ergonomically optimized operating areas for tool and workpiece input
Import and export of workpiece and tool geometries in Gear Data Exchange (GDE)
Measured value transfer via GDE communication between gear inspection machine and gear cutting machine
Available for hobbing, grinding, shaping and skiving machines
Possibility of integrating Siemens cycles for drilling, milling and turning operations
“Digital Twin”: one-to-one offline version for programming during job preparation
Supports automatic tool changers
Available with Siemens 840Dsl and SINUMERIK ONE
With the new LHGearTec software, the system constantly guides users when entering workpiece and tool data, as well as during workpiece correction and process monitoring. The user guidance was redefined in intensive cooperation with designers and users. Close attention was also paid to the consistent integration of the control system in factory processes with open interfaces for both measurement processes (closed loop) and MES/MDE/PDA interfaces.
The new control panel combines the functions of a classic control station with those of a mobile handheld unit. The virtualized NC/PLC operation contained in the handheld unit guides the user through all entry and monitoring processes in a technology-specific and situation-dependent manner. The result is a consistent operation: from programming and setup to production monitoring.
Fast availability and everything from one source
Ideal interfering contour with maximum rigidity
Highest concentricity and axial runout accuracy
Simple and fast retooling
Integrated rinsing solution for air and oil to remove chips
Clamping solutions for gear manufacturing are usually very individual and have special requirements regarding concentricity and interfering contours. That’s why finding a suitable clamping device for the respective area of application is particularly important here. Liebherr therefore provides its customers with a specially developed clamping device within ten weeks.
Using segment clamping technology, reliable and precise clamping of the workpieces from the bore can be achieved. The segment clamping arbors can be used universally.
They also offer further advantages compared to standard segment clamping arbors. Conventional systems often reach their limits, for example with small workpieces with interfering contours – for Liebherr’s SECLA, this is not a problem!
Highest precision provided by granite guides and air bearings
Low operating costs due to contactless guides and reliable probes as well as inexpensive spare parts
Flexible for all types of gears
User-friendly interface and ergonomic design
Manufacturer-neutral GDE interface for data transmission to production machines
Are you looking for a solution to ensure quality and increase productivity in gear manufacturing? The four-axis measuring instruments of the WGT series have high-precision mechanics and electronics, which are controlled by smart and user-friendly software. They meet all accuracy requirements regarding gear measurement and comply with VDI guideline VDI/VDE 2613, group 1.
In addition to the gear inspection machine options available as standard, customer-specific solutions are also available, such as adjusting the travel range on the Z axis, longer tailstocks to accommodate long shafts, and rotary tables adapted to the payload.
An automatic sensor changing system ensures uninterrupted measurement of the workpieces and also offers the highest levels of convenience for the user.
The extensive software features make the machines suitable for measuring all types of gears, such as spur gears, helical gears, bevel gears, worms, worm gears, shafts, gear cutting tools and other rotationally symmetrical parts.
Highest efficiency: roughing and finishing in one step
Geometric possibilities: very small diameters achievable
Best quality: process reliability and individually available
Liebherr’s extensive portfolio of high-quality gear cutting and stock tools includes single-, double- and triple-ribbed CBN profile grinding discs for gear cutting of the highest quality. Thanks to the different grit sizes in the individual ribs of the multi-grooved discs, roughing and finishing are carried out in one process. The grinding time can thus be significantly reduced while maintaining the same surface quality.
CBN tools can be manufactured in very small diameters, making them particularly suitable for internal grinding. In comparison, corundum tools reach their geometric process limits faster.
Grinding with electro-plated CBN profile grinding discs also eliminates the need for time-consuming dressing. The discs also have a longer tool life. This is where high process stability meets a high rate of metal removal.
Liebherr offers the right grinding material for every application. The technology is particularly impressive in the aviation sector, which has the highest quality requirements. There is also great potential for the automotive sector and industrial gear applications.
Live status of machines in the field at a glance
Individual selection of relevant data from the defined data profile (Basic, Production, Process)
Wide selection of interfaces and protocols available: OPC UA, MT Connect, MQTT or umati
Real-time capturing of changes in production
Data-based optimization of production
Detailed information on each machine on their respective machine dashboards
Possibility of adapting signals with the integrated logic editor
With the LHWebPlatform, Liebherr offers a platform of web applications and networking possibilities that can be used to easily configure a tailor-made digitalization solution.
The spectrum ranges from simple monitoring applications to far-reaching industrial 4.0 scenarios – such as process logging, manufacturing analysis and production optimization. A wide variety of interfaces and protocols enable Liebherr to connect machines to higher-level systems, for example – from fieldbus (Profibus, Profinet) to OPC-UA or umati. This gives the customer full control over their manufacturing.
Preventative analysis of the machine condition
- Analysis log with recommendations for action based on field experience
- Implementation based on the customer’s individual maintenance strategy
* individually or as part of the contract
The right spare parts for every situation, at your location
- “Start-up” for a smooth production start
- “Maintenance” to maintain the productivity of your machines
Fast and uncomplicated assistance by remote access in case of malfunctions
- Function tests and troubleshooting
- Removal of software problems by remote maintenance
* individually or as part of the contract
Safeguarding machine availability
- Analysis log with recommendations for action based on field experience
- Replacement of standard wear parts
- Professional testing of individual machine parts
* individually or as part of the contract
Effective technical training for operators, maintenance personnel, planners
- Attachment of workpieces, processing start and error detection
- Electronics/mechanics, part exchange, inspection records
- Application expertise
The seamless operation of machines and plants at the customer’s premises must be ensured. In order to optimize their availability and productivity, Liebherr offers the appropriate service – right from the start. Preventative measures and individual consultancy help you to optimally use the machines and avoid standstills. This ultimately reduces costs and ensures competitiveness.
Each user has his own maintenance strategies for his equipment and machines, which result in different requirements for manufacturer support. Liebherr’s service packages are tailored precisely to this.
Whether you are planning a replacement of wear parts or need fast and uncomplicated help for an acute malfunction, whether the time or cost factor is most important – Liebherr gives its customers specific support with individual service offers over the entire life cycle of a machine or plant.
In addition, training offered on the topics of operation, maintenance and planning increases the user’s competence in specific ways.
