About
Make - Liebherr (Germany)
Model - L-901
Max. Module - 10 module
Max. Diameter of the Gear - 900 mm
Max. Vertical Travel of Hob-Slide - 400 mm
Table Diameter - 710 mm
Max. Hob Cutter Size - Diameter 192 mm x 200 mm Length
Max. Hob Shifting - 200 mm
Minimum No. of Teeth - 6
Table Bore Diameter - 160 mm
Hob Cutter Speeds - 30 rpm to 240 rpm
Weight of the Machine - 9.80 Tons (Approximately)
- Continuously variable Hob Rotation Speeds & Feed Rates of Travels.
- Complete with Change Gears, Arbours, Mandrels, Job Supports etc.
- Complete with Leveling Pads, Covers & Splash Guards, Coolant Tank & Pump etc.
- Operating Manuals & Electrical Drawings are available.
- Machine is in excellent working condition.
Video of The Machine -
https://youtu.be/mzeMSeASqWw
High-Precision Gear HobbingEngineered for accuracy, the Liebherr L-901 offers consistently precise gear cutting and hobbing for a wide range of gear sizes. The heavy-duty construction and advanced hydraulic system contribute to reliability and smooth operation, ensuring top-quality production with minimal error.
Robust Capacity and VersatilityWith the ability to handle gear diameters up to 900 mm and modules up to 12, this machine is suitable for both standard and large-scale industrial applications. Its 500 mm tailstock travel and 900 mm worktable diameter enable great flexibility in machining diverse gear profiles.
Optimized for Efficient OperationsThe integrated coolant and powerful 10 kW main drive system support efficient, uninterrupted processing. Hydraulic and mechanical outputs enhance capability, while the sturdy floor footprint and ergonomic controls boost productivity on the factory floor.
FAQs of Liebherr L-901 Hydraulic Gear Hobbing Machine:
Q: How does the Liebherr L-901 ensure high precision in gear cutting operations?
A: The Liebherr L-901 features robust construction, advanced hydraulic control, and an integrated coolant system. These aspects work together to reduce vibrations and maintain consistent temperatures, ensuring precise and smooth gear hobbing for various module and gear size requirements.
Q: What types and sizes of gears can be produced with this machine?
A: This machine can produce gears with 10 to 180 teeth, a maximum module of 12, and up to 900 mm in diameter and 500 mm in width. This makes it suitable for both fine and coarse gear applications across various industries.
Q: Where is the Liebherr L-901 typically installed and operated?
A: Due to its substantial floor space requirement (about 3500 x 2400 mm), the L-901 is commonly found in industrial settings such as manufacturing plants, gear production workshops, and machinery repair facilities that demand high-precision gear-cutting operations.
Q: What is the process for using this hydraulic gear hobbing machine?
A: The gear blank is mounted on the worktable, and a cutting hob is secured on the arbor. With settings adjusted for the number of teeth and module size, the hydraulic and mechanical systems drive the synchronized rotation and cutting, while the coolant system minimizes heat.
Q: What are the advantages of using the Liebherr L-901 for gear manufacturing?
A: Key benefits include high precision, stability, and durability thanks to its heavy-duty hydraulic system and robust build. It is also energy-efficient with a 10 kW main drive, and delivers smooth, continuous operation to maximize productivity and gear quality.
Q: When should maintenance be performed on this used machine?
A: Regular maintenance should follow the manufacturers recommended intervals, especially for the hydraulic system, coolant lines, and cutting components. Inspection before each major production run is advised to ensure optimal performance and longevity.