Voordele van duimgrepe van graafmasjiene

Thumbs and grabs make it relatively easy to select, place and sort materials for excavators. Egter, with a wide range of options, choosing the right tool for your job can be very complex. Thumbs and grabs come in many different types and configurations, each with unique advantages and limitations.

This is our company’s Digger Grapple

If you make the right choice, you will reap the benefits of increased productivity. If applied incorrectly, it can impact productivity and reduce / or accessory uptime and overall longevity.

Bucket Finger Considerations

A bucket/thumb combination can handle most tasks. If digging with the machine is required, it can provide an effective solution. The thumb of an excavator bucket, like the thumb in your hand, can grab oddly shaped objects and fold them up for normal digging and transport.

Egter, this is not a universal solution. There are many types of thumb shapes on the market. Most thumb designs can handle almost anything, but some thumbs can be more efficient.

Byvoorbeeld, a thumb with four more closely spaced pegs is much better than a thumb with two more widely spaced pegs if the characteristics of the fragments are small. Larger fragments have fewer spikes, bringing more spacing and giving the operator a better view. The thumb will also be lighter, which allows for a larger payload of equipment.

There are also hydraulic and mechanical versions with a variety of teeth that are combined with bucket teeth. Mechanical thumbs are generally mounted on simple welded brackets with no special nuts or hydraulics. They bring a low-cost solution for occasional applications, while hydraulic thumbs provide a powerful and aggressive crawl.

Over time, the flexibility and accuracy of hydraulic thumbs will prove to be more efficient, making it easier for the operator to grip objects.

Egter, there is a trade-off between cost and productivity. Hydraulic thumbs are more expensive, but they will be better than mechanical models, and most purchases are related to thumb work. If you use it every day, I recommend a hydraulic. If it is only used occasionally, a foot application may make more sense.

Hidrouliese gryp For Mini Excavator Mini Grapple，Rainbow Machinery Excavator buckets Offer you the perfect excavator bucket to handle every construction work

The thumb is fixed in one position and the bucket must be bent. Most mechanical thumbs have three manually adjustable positions. The hydraulic thumb has a wide range of movement and allows the operator to control it from inside the cab.

Some manufacturers also offer progressive linkage hydraulic thumbs that provide more categories of movement, typically up to 180°. This allows the thumb to climb the entire category of the digging bucket. You can pick up and place objects at the end of the stick. It also provides load control over most ranges of motion. In contrast, the crankshaft-less hydraulic thumb is more convenient, lighter, and has a range of motion typically between 120° and 130°.

The mounting of the thumb can also affect its characteristics. The universal thumb, or pad thumb, has its own main pin. The bottom version is welded to a wooden stick. The pin thumb uses a barrel-shaped pin. It requires a small holder welded to the wooden stick. The hydraulic needle thumb is kept in relation to the bucket rotation and is designed to match the radius and total width of the bucket tip.

The thumb fixed to the barrel needle keeps the thumb and bucket rotating in the same plane. When placed on a board mounted on a stick, the relative length of the thumb tends to shorten to the radius of the bucket tip. Pin thumbs are usually more expensive. Welded thumbs have more diverse features and are designed to fit the respective net weight level of the excavator.

We Excavator buckets supply to the global，Compliant with OEM. Competitve Prices

Pin thumbs have several advantages over bar thumbs. When the nut is installed on the thumb, the top crosses the teeth, regardless of the bucket position (fully seated). When the digging bucket is removed, the thumb is removed, which means the thumb does not extend out of the arm, which can damage and hinder work. There is no support bracket on the bar and it does not interfere with other attachments.

The nut thumb is also suitable for nut clips and quick plug connectors. The thumb is separated from the digging bucket and stays on the device. Egter, since there is no quick connector, the gold plate and thumb must be removed with the bucket, which means extra work.

Mounting the thumb on the stick also has several advantages. The thumb stays on the device, is not affected by attachment changes, and is easily removed when not needed (except for the bottom version and the shaft). Egter, the top of the finger only crosses the barrel teeth, so the length of the thumb is very important. When using a pin clip, the thumb must be particularly long, which enhances the twisting force of the holder.

When choosing a thumb, it is important to align it with the top radius and tooth spacing. Total width is also a consideration.