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2021 06.16

Differences in characteristics of wood crusher depending on the maker.

Author: MARUMORI-KUN

Category: used construction machinesRecycling EquipmentexcavatorGRINDERscreenaerial platformdemolitionauctiondozercrusherforestry

 
 
This article was created using machine translation to speed up the delivery of information to our customers.
 

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While the mainstream of Japanese-made crushers are small and medium-sized, many manufacturers other than Japan are large-sized.

Manufacturers of wood crushers include Japanese manufacturers such as Komatsu, Morooka, Hitachi, and Furukawa, as well as non-Japanese manufacturers such as Peterson Pacific, Barmiya, Mobac, Germany's Dopstadt, Gents, Willy Bardo, and Foras in the United States.
While the mainstream crushers made in Japan are small and medium-sized, many crushers made by non-japanese manufacturers are large.
Regarding engine power, which is the key to the amount of crushing process, most of the wood crushers from Domestic manufacturers are 100 to 300 ps, while many wood crushers from non-Japanese manufacturers are 400 to 700 ps or more. Considering the narrowness of the place to use, the distance traveled, and the required amount of chip, the need for small and medium-sized self-made wood crushers will inevitably increase in Japan.

Difference in design concept between Komatsu and Morooka, a Japanese mobile wood crusher manufacturer.

These two models have the same crushing method and design dimensions, so we think they are models that are often compared and examined.

If you choose by safety equipment, it is a Komatsu crusher.

The biggest merit of Komatsu products is that safety control is firmly incorporated.
As the world's top manufacturer, it has a structure that emphasizes prevention of danger.
Since crushing wood can be dangerous, the procedures and locks to ensure worker safety are well calculated.

In addition, since the crushing process also puts a heavy load on the crusher itself, sensors that detect overload are also important, and the BR120T is equipped as standard.
Therefore, Komatsu is recommended for those who want to be safe and prevent mistakes in procedures.
The disadvantage is that it will not work unless proper procedures and operations are performed because of the strict safety control.

On the other hand, Morooka designs safety control to the minimum necessary.
Therefore, it is necessary for the user to decide the rules for safe operation and work on it.
"Morooka" is recommended if you choose with less breakdown risk and trouble.
Morooka products have a simple structure.
Since the electrical control is minimal, it can be said that the model has a low risk of failure. I like professionals.

However, in the past, problems tended to occur in the cooling system of the engine and hydraulic oil, so measures such as making a large oil cooler standard equipment are now being taken.
When choosing a second-hand product, make sure it has an "external oil cooler".
If it is not attached, adjust the mounting position even with a standard oil cooler to improve cooling efficiency.



On the other hand, Komatsu has a lot of electrical control to ensure safety, so the risk of failure is inevitably high. Some sensors are surprisingly expensive. It seems that there are cases where the sensor is bypassed in the event of a failure, so when choosing a used product, be sure to actually crush the overload auto-reverse function and check it.

Crushing chamber shape and ingenuity.
Bits that crush wood are consumables, so their cost and durability are of concern.
The crushing bit of Komatsu BR120T is a rocket-shaped conical bit. It has a shape that seems to bite into hard wood. Perhaps this angular part is sprayed or something is done with cemented carbide.

On the other hand, the crushing bit of Morooka MC-2000 is a diamond-shaped reversible type. The whole is covered with tungsten carbide. If this is taken, the crushing ability will decrease, but if it is reversed, it will last twice as long!
 
 

Used market prices for wood crushers and checkpoints for second-hand purchases

Now that we've seen the functional comparisons, the last is the price difference.

If you purchase a new car, Komatsu is truly equipped! After all it is a luxury item. You
may need an amount that you can buy a PC350.
On the other hand, Morooka MC-2000 is simple. Can I buy it with a budget of about 2/3 of Komatsu?
I think it's difficult to compare because it differs greatly depending on the presence or absence of optional equipment, but in fact, the price (sale price) when trying to sell these two units as second-hand is almost the same for both Komatsu BR120T and Morooka MC-2000.

In other words, it can be said that the resale value of Morooka MC-2000 is high considering the sale.

Also, if you want to buy it as a used car, you can buy Komatsu BR120T and Morooka MC-2000 at almost the same market price, but the situation will change a lot depending on the damage condition of the crusher and the presence or absence of options.

MC-2000 is as popular as the BR120T, but there are some points to check when considering purchasing.
It is the presence or absence of options. This is because the ease of use and work efficiency will vary greatly depending on what options are included. In particular, Morooka's wood crusher can cover weak points as an option.

4 major options to upgrade Morooka's wood crusher

1.  External oil cooler: Reduces work stoppage due to overheating.

2. Automatic forward / reverse reversing device: When a load is applied to the crushing drum, the hopper is reversed to reduce clogging.

3. Long Belcon: Crushed wood can be loaded directly into the dump truck. At the site where crushed wood is carried out, work efficiency changes significantly depending on the presence or absence of a long conveyor belt.

4. Magnet separator: A device that removes metals such as nails. It is an indispensable option at the site of crushing demolition waste.
 
 

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Summary

・For small and medium-sized self-propelled wood crushers, we recommend products made in Japan.

・ For large self-propelled wood crushers, manufacturers other than Japan are recommended.

・ The two major Japanese manufacturers of wood crushers are "Komatsu" and "Morooka".

・ Identify the characteristics, merits and demerits of two different types of manufacturers, and select the one that is most suitable for your site.

・ The prices of used wood crushers are almost the same for both manufacturers.

・ For Morooka, there is a big difference in work efficiency depending on what options are attached, so check for options.

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MARUMORI-KUN

MARUMORI-KUN

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