Teeth and adapters are distinguished by type, profile, and fixing system when equipping buckets for loadrs, eexcavators, and mini-loaders. The required application also determines the selection of tooth type and profile. In this discussion we will set out the necessary information in order to equip your machine with the right products.
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How to identify the most suitable teeth and adapters?
To identify the right adapter, it is first necessary to establish:
What machine the set of teeth and adapters will be installed on (e.g. loader, bulldozer, grader, excavator).
Whether the bucket on which the adapters will be fitted is original or after-market.
The thickness of the bucket blade in question.
If it is necessary to choose teeth as well as adapters, it is important to establish the following.
1. How the tooth is fitted to the relevant adapter
There are four main fixing systems:
1. Horizontal on the side
2. Vertical on the side
3. Vertical in the centre
4. Bolted directly to the bucket blade
2. What elements are used in the fixing system
1. Single steel element fixed with retainer
2. Elastic steel pin (single element in rolled steel)
3. Single steel U-shaped element
4. Single steel element with rubber fixture
5. Single element comprising steel and rubber parts
3. How is the tooth pocket shaped
Rectangular cross-section
Oval cross-section
Triangular cross-section
Spiral protrusion
Once the tooth model has been identified, the profile and size must be established
4. Tooth size
The size means the dimensions the tooth must have for correct coupling to the adapter. Size is identified mainly by the internal dimensions of the tooth pocket. The size also provides an approximate indication of the tonnage category of the machine on which the tooth-adapter-fixture kit will be installed. The larger the size, the greater the tearing force to which the tooth-adapter-fixture system can be subjected.
5. Tooth profile
It is essential to establish the tooth profile since there are specific profiles for each different application. Fitting the wrong profile could result in early tooth wear, breakage after a few hours of use, or the well-known “balling” wear effect rather than remaining sharp.
Application and machine model: everything there is to know about choosing the right teeth
Teeth can be categorized by application, which means the type of terrain in which the wearing elements will be used, and the type of machine on which they will be installed. They can thus be divided up into:
Teeth for lighter or heavier application
Excavator teeth
Loader teeth
Tooth profiles according to application
As regards application, the product characteristics that have to be considered to establish whether they are appropriate for the terrain include:
Hardness and wear resistance
Impact resistance and durability over time
Penetration capacity and sharpness resilience
In general, the higher the terrain class, the greater the required product wear resistance. La terrain class increases in relation to both particle size and density. The first case requires greater impact resistance, while the second requires greater penetration capacity.
Furthermore, the higher the material density and specific weight, like for example rock or high water content terrain, the greater the importance of bucket capacity. This has to be limited to avoid overloading the machine and creating situations that could be dangerous for operators.
Download a summery table here showing the main terrain characteristics and the most suitable products in each case
Tooth profiles according to machine model: excavators and loaders
Depending on the machine model, the tooth profile must offer certain characteristics for good operating performance and efficiency. The tooth types best suited to excavators and loaders are as follows.
1. Profiles for excavators
TIGER PROFILE
This profile offers unparalleled penetration in frozen ground, rock, and very cohesive terrain. It stays sharp but the wearing material is limited and so the tooth has a relatively short life.
TWIN TIGER PROFILE
With competitive price and timely delivery, G-Top sincerely hope to be your supplier and partner.
A profile offering greater penetration and durability compared to the single point profile (TIGER). It is mainly used in rocky terrain.
PENETRATION PROFILE
Distinguished for excellent penetration, it remains sharp throughout its operating life. Average amount of wearing material present. Recommended for clayey soils or ground with inclusions and medium-compact terrain.
STANDARD PROFILE (LONG)
Generally a good choice for most basic applications and for relatively loose terrain. Average amount of wearing material present on the tooth.
SYMMETRICAL PROFILE
Good penetration in most terrain conditions including medium-compact. The vertical ribs on both sides ensure that the tooth remains sharp throughout its working life. Average amount of wearing material present.
ROCK CHISEL PROFILE
The best choice for rock or hard ground. It remains sharp throughout its operating life. Substantial amount of wearing material.
FLARE PROFILE
Designed for mud and soft terrain. Offers less penetration but enables greater material containment. Substantial amount of wearing material.
HEAVY DUTY LONG PROFILE
Very similar to the standard tooth (LONG) but with increased wearing material and so a longer operating life.
2. Profiles for loaders
HEAVY DUTY ROCK ABRASION PROFILE
Good penetration. Increased material on the lower part of the tooth to ensure extended wear during use. The central rib ensures correct wear profile for the tooth (without “balling”). Excellent for compact and highly abrasive terrain.
HEAVY DUTY ABRASION PROFILE
Lower penetration and increased material on the bottom and sides of the tooth ensures extended wear during use. Recommended for abrasive and highly abrasive terrain.
HEAVY DUTY LONG PROFILE
Very similar to the standard tooth (LONG) but with increased wearing material and so a longer operating life.
The patented UNIK ITR profile for every machine model
The UNIK ITR line is designed for applications in which high ground penetration, impact resistance, and extended operating life of teeth are essential. Our patented UNIK ITR profile is suitable for both excavators and loaders. Adopting this single profile makes it possible to simultaneously reduce costs and improve performance. Its special characteristics include:
High productivity with the innovative self sharpening profile ensuring excellent performance
Reinforced side pin structure
Increased material in the pin insertion area
High impact resistance
Carefully selected ITRsteel composition
Extended wear life
A comparison of a STD tooth and a UNIK ITR tooth in three points:
1. Innovative reinforced tooth pocket structure
2. Reinforced side pin structure
3. Better impact resistance
Would you like to learn more about ITR teeth and adapters?
Contact us to discover all the features of our range for excavators and loaders!
Date Posted: 11 March 2020
You know what they say, a farmer is only as good as their tools, and bucket teeth are a huge part of getting the most out of your machine. The teeth that come with your Ground Engaging Tool may seem like a miniscule part in the grand scheme of things, but they can have a big impact on the excavation work. It is important that you have the right type of Excavator Bucket Teeth for the right piece of equipment for the right job. Unfortunately, when purchasing an excavator bucket, you are usually provided with the teeth and adapter supplied by the manufacturer. Some companies opt for the cheapest excavator teeth possible to keep costs down and profits up, leaving you with equipment that is prone to breaking, doesn’t work efficiently, and may not even suit your type of work at all. Although bucket teeth are only small components in huge machines, a broken tooth can bring you entire operation to a halt. Choosing the perfect bucket teeth for your machine and your desired job can increase efficiency, promote longevity, and reduce the stress put on your machine.
So, how exactly do you choose the correct excavator teeth for the job?
Manufacturing process – One of the first things to consider when shopping around for bucket teeth is the manufacturing process. The construction of the product will ultimately determine how long it will last, how efficient it will be, the quality of its output, and its strength. In the modern day and age, the majority of bucket teeth are manufactured in third-world countries due to costing reasons. The heat treatment process during manufacturing can affect the wear life, as can the casting process and the moulds used. What you are looking for is a manufacturer or bucket teeth supplier with a good track record and good reviews of strong, long-lasting teeth.
Material – In general, the harder the material that the tooth is made out of, the greater its strength, and resistance against things such as wear and tear, abrasion, and stress. The harder the material, the longer the lifespan of the tooth. There are now modern techniques that combine certain strong materials like austempered ductile iron with special manufacturing, heating, and casting techniques to produce robust but light extraction teeth. These are perfect for medium to high impact digging. Certain materials, such as the ductile iron, are also more resistant to sand, gravel, and rock work, as the broad tip cuts through harder, tightly-packed material.
Wear life – It is important to remember that they very day-to-day job of these excavator teeth is to come into rough contact with other materials, whether it be sand, rocks, dirt, or anything else. Therefore, strength is a key criteria for your bucket teeth. The wear life can be impacted by abrasive sand and other materials, depending on the quartz content. Larger wear surface teeth with last longer before breaking or losing strength, but may be less efficient when working with hard ground.
Penetration – The efficiency of a bucket tooth is often measured by the surface area that actually penetrates the ground. Extra power will be needed from the excavator if the bucket tooth is very wide, blunt, or has a balled surface area. Of course, extra power brings with it more stress on the machine in general, as well as a greater fuel consumption. Self-sharpening teeth now exist to sharpen themselves as they excavate, thus maintaining efficiency. Twin Tiger Teeth, or other sharp variants of bucket teeth, are needed in order to break into hard, tight, and compact ground, including rocky terrain and frozen dirt. The bucket can then power through the material in question with greater ease, making sharp teeth ideal for digging/trenching. However, the sharper the teeth, the shorter the lifespan. They also do not have the ability to create a smoother hole or trench as a blunt tooth could do.
Impact – If you need bucket teeth that can withstand high breakout forces, then you will need to look for those with high impact resistance. These types of teeth are often used when using a machine to dig in hard, rocky, quarry-based areas. However, the correct teeth to adapter partnership is needed for this kind of work, or else the pressure will be pushed back onto the pin, often leading to breakages.
The different types of bucket teeth
Bucket teeth come in all kinds of shapes and sizes, depending on the price, the machine, and the job at hand. It is important to match the correct excavator bucket teeth types to your personal situation in order to get the best out of the product and to achieve the desired results.
Twin tiger teeth – These have a low wear life, high penetration, and a high impact. The advantages include an impressive sense of penetration and a longer lifespan than the single tiger teeth. However, the disadvantages include a lower sense of leverage, and a higher required machine breakout force.
Single tiger teeth – These have a low wear life, high penetration, and a high impact. The advantages include having the best penetration out of any teeth in frosty conditions, as well as rocky and generally hard terrains. The disadvantages include small wear surfaces and a shorter lifespan than some of the other teeth types.
Rock chisel teeth – These have a high wear life, medium penetration, and a low impact. The advantages include having the best general ability for rocky and hard ground. However, the main draw back of the rock chisel tooth is the price, as it ranks as one of the most expensive out there.
Chisel teeth – These have a medium wear life, medium penetration, and a medium impact. The advantages include being the best all-rounder for a wide variety of things, meaning that if you have great variation in your work, the chisel tooth may be for you. However, the disadvantages include potential poor penetration in hard ground.
Bunyip Equipment have a long and vast history in earth-moving equipment and agricultural industries. We provide the latest equipment, including drills, farming machine accessories, loading ramps, spare parts, attachments, excavator buckets, replacement bucket teeth and more. We pride ourselves on our top-class personal service, as well as our extensive first-hand knowledge and experience in machinery attachments. Despite growing and expanding all the time, we remain a family-owned and operated business in Australia, staying true to our roots. This ensures that, not only do you get a top-quality product with exceptional service, but also a family touch. We see our customers as an extension of the team and are always on hand to take your calls and emails with whatever questions you may have. Knowing exactly which bucket teeth best suit your machine and your desired job can be tricky, even after researching online. We realise that our customers want to talk to an actual expert, rather than a call centre, automated voice, or automatic email reply. That’s why we always take the time to chat to our customers one-on-one, offering you the best product for your individual situation, along with a competitive price.
The company is the world’s best bucket teeth manufacturer supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.