Banana Liver

Approx. Rs 2,450 / PieceGet Latest Price

Product BrochureProduct Details:

The Staubli Dobby Banana Lever is a precision-engineered mechanical spare part used in Staubli dobby shedding mechanisms installed on modern shuttleless weaving machines. Staubli, a globally recognized brand in textile machinery, is known for its advanced dobby systems that provide accurate, high-speed shedding for complex fabric designs. The banana lever plays a critical functional role within the dobby mechanism by converting motion, transmitting force, and ensuring synchronized movement between internal dobby components.

In textile weaving operations where pattern accuracy, reliability, and machine uptime are crucial, the banana lever is considered a vital mechanical element. Its curved or “banana-shaped” geometry is specifically designed to support smooth motion transfer while minimizing stress, vibration, and wear during continuous high-speed operation.

IndiaMART suppliers commonly list the Staubli Dobby Banana Lever as a high-demand replacement spare part, suitable for textile mills, weaving units, and maintenance departments that operate Staubli dobby-equipped looms.

2. Product Overview

The banana lever is a curved metal lever installed inside the dobby head assembly. It acts as a linkage component, connecting different moving parts of the dobby mechanism such as hooks, knives, rocker arms, and selection elements. Its unique curved profile allows optimized motion geometry, ensuring precise lifting and lowering of heald frames according to the programmed weave pattern.

This component is subjected to repetitive mechanical stress, high cyclic loads, and continuous motion. Therefore, it is manufactured using high-strength alloy steel or forged steel, combined with accurate machining and surface finishing to ensure durability, dimensional stability, and long service life.

3. Role of Banana Lever in Staubli Dobby Mechanism 3.1 Understanding the Dobby System

A dobby is a shedding device that controls the movement of warp yarns by raising and lowering heald frames according to a defined weave pattern. In Staubli dobby systems, this process is highly optimized and synchronized to achieve:

• High-speed weaving

• Precise pattern control

• Reduced mechanical wear

• Smooth and silent operation

The banana lever is an integral part of this system, ensuring efficient transfer of mechanical motion inside the dobby head.

3.2 Function of the Banana Lever

The Staubli Dobby Banana Lever performs the following key functions:

• Motion transmission between dobby internal elements

• Conversion of linear movement into controlled angular motion

• Load balancing within the dobby mechanism

• Maintaining accurate timing between hook selection and heald frame movement

• Reducing shock and vibration during rapid shedding cycles

Its curved design helps distribute mechanical forces evenly, reducing stress concentration and improving component life.

4. Applications

The Staubli Dobby Banana Lever is used in a wide range of textile weaving applications, including:

• Cotton fabric weaving

• Synthetic and blended fabric production

• Home textiles (bedsheets, curtains, upholstery)

• Technical textiles

• Apparel fabrics

• Jacquard and dobby pattern weaving

It is commonly installed in shuttleless looms such as:

• Airjet looms

• Rapier looms

• Projectile looms (with dobby attachment)