Tag Archives: husk

Olive husk waste

Olive waste briquetting information (part #2)

Olive waste briquetting information (part #2)

Question : 

How much olive stones would you need ideally? I also have this other question:

Is it possible to make briquettes or logs like yours WITHOUT any binder. I am talking in general here (not especially about the olive stones).

I am asking this question because I met a potential “competitor” that bought material (from Italy) that will allow him to compact olive stones into briquettes. This competitor does not plan to char the stones but just compact the stones into briquettes and sell them.

according to him, his briquettes will be made without binder. is it possible or he wanted just to impress me?


Answer : 

Let us refer to charred briquette as “Charcoal Briquette” and not charred briquette as “Biomass briquette” in order not to be confused. What we offered to you is charcoal briquette making machine to make briquette from charcoal or charred material. Charcoal briquette market is virtually different from biomass briquette market.

Charcoal briquette is for BBQ, grill restaurants, hotel, home-use, food industry and else. So, the price is completely better than the biomass briquette which is to be used as fuel (giving heat, sell as calorific value).

If you plan to make biomass briquette (briquette from olive stone), the process is called hot press process using heat to bind the biomass. You can carbonize this briquette later to get the charcoal if you want (need kiln for carbonization, same as making wood charcoal from wood log). The offered machine is the smallest size because this process requires much higher horse power machine.

I do not think there will be any problem with machine for charcoal briquette production.

Regarding briquette making from olive stone, we do not have the test machine now but we have experiences with what is called “olive husk” and dry olive waste. It can be made into briquette without problem (actually it smelled very good when making briquette). However, I want just to make sure if your sample is what we imagine or not. So, only little of sample to see would be enough.

Olive husk waste

Olive seed husk waste

Olive waste briquetting information (part #1)

Olive waste briquetting information (part #1)


I hope you are not getting tired of the questions but I still have these:

You wrote that (I quote) : “.. Anyway, higher the density of the briquette is, the longer the drying time requires..”.

the more compacted the briquettes are, the more time it requires to dry?
It is correct?
[Answer]: Yes,  you understand correctly.
second question: If I succeed to get decent briquettes manually (which means without using a presses), can I assume that the result will be even better when I will be using a hydraulic press?
[Answer]: Yes, it is supposed to be that way. The result may be a lot better that making briquette by hand because you will never reach such high pressure the machine can do.

last question : are you building your own machines that you are selling?
[Answer]: Yes, we build our own machines everything by ourselves. The reason I suggested you try to find the standard hydraulic press unit (as photo) is that it would be easy and much cheaper for you.


Actually, the latest try gave me the impression that it might be a good idea to grind first the olive stones, char the grinded stones and then mold them. When molded, then they can be charred.

That is the latest idea I came with but I have not applied it yet to see if it is a better option. i thought of that because I noticed that the smaller the olive stones were, the quickest the charring process was. therefore, if I were to grind to stones into a powder, the charring process will be faster.

All my test so far were following this succession of steps : char the olive stones, grind them and then mold them.

I might stick to this process for the moment.

I will have plenty of olive stones available for my tests (I can even send some to you).

I can find different machines to char and grind, As for the molding machine, I am not sure there are any over there (i have not found any so far). That is why i though of you.

Out of curiosity : do you think, it is possible to make briquettes without adding any binder?

Answer : 

It would be great if you can send the sample to us to make the briquette for your reference.

It cannot be made into briquette without binder. Please note that the binding agent can be anything that gives stickiness, i.e.starch, flour, molasses, etc.

It is need to confirm the raw material first to offer the right equipment set to you. The charcoal briquette making from charcoal chunk/powder is the common method and proven technology. More than half of the charcoal briquette being sold in the market is this type. So, it would be great if you can char your raw material first. You can also mix them with other charcoal or some other fine materials too to improve the quality or reduce the cost.

Olive seed husk waste Olive husk waste

Briquette making system for charcoal and Biomass – Correspondences1

Thank you very much for your time yesterday

Please let me summarize again about the options that you have.
1) Biomass briquette making: this process can be used to produce briquette from most of biomass (semi-dry material). The briquette?s density is not very high so it is suitable for being used as direct fuel. Please find photos in our website (link below):-


2) Cold process briquette making: this process can be used to produce charcoal briquette from raw charcoal or charcoal dust. Binder is required for this process which can be starch or molasses. The density of this briquette after drying can be as high as 1.1 g/cm3.
Size of motor for extruder = 10 HP, crusher = 7 HP, mixer = 7 HP (3-phase electrical)

3) Hot process briquette making: this process is suitable for fine and dry biomass such as rice husk, sawdust, crushed biomass. However, the investment cost is very high and the raw material preparation is also required (to reduce size and moisture content to less than 10 wt%.
Size of motor for extruder = 30 HP
All the prices already include major spare-parts and control panel. If without control panel (just direct connector with breaker), the price will be lower.
Please find quotation and photos as attachment. If you need more information or have any question, please feel free to let me know.

Best regards,

DSCF0553 product07


Sent: Monday, July 28, 2008 12:25 AM

To: Anupap Udomsab

Subject: Re: Biuomass and chacaol machine


Dear Mr Anupap Udomsab,

Thank you for your mail,

I have three different client, each one of them plan to use different raw material some of them are looking to mix raw material. To give you little info about raw material founded in my place are rice husk, stalk for each one of rice, Cotton, maize, sugarcane, and normal long grass that grow by itself in. the raw material are as follow as par client

1. Raw material ” Grass that grow in the river or the water ways to rice farm. He want to mix that grass with rice stalk, and cotton stalk” in other word it will be mix of raw material

2. Raw material “rice husk, rice stalk and sugarcane and cotton stalk

3. cotton stalk and sugarcane stalk

Please advice if the mix of the product can be produced. The aim of each client is to produce charcoal briquette as final project, bu client 1 and 2 wish to produce both biomass ” for factory and Bakery maker”.

I need the prices for the whole plant from crushing if needed to charcoal the whole plant. Please send me also the picture, and how many container we need for each plant. Electricity consumption. I would like you also to offer different capacity.

I hope to get a respond from you by tomorrow, my client has got a fund already and I need to act quick.

Thank you

On Sun, Jul 27, 2008 at 11:50 PM, Anupap Udomsab wrote:

Dear ,
First of all, please let us introduce ourselves. We are charcoal producer and charcoal making machine manufacturer based in Ayutthaya Province, THAILAND. We are specialized in Coconut Shell charcoal and some other charcoals as below;
– Coconut shell charcoal and charcoal briquette (100% natural material)
– Mangrove charcoal, Black charcoal and natural wood charcoal (100% natural material)
– Charcoal making equipment, sawdust extruder, etc.
We can supply machine to you and guarantee that you will be able to produce good quality (high density) briquette.Please kindly let us know what type of raw material to make briquette that you have. Then we will get back to you with further information about the machine that suits you case.
If you need more information, please do not hesitate to let us know. We are looking forward to hearing from you soon.
Your sincerely,



Question regarding Machinery to produce charcoal briquette from coffee husks, rice husks , coconut husks, macadamia husks saw dust and maize cobs.

[QUESTION]: Dear Sir,

I am interested in Machinery to produce charcoal briquett. I intend to start the project in my country. Please do email me a price quote for the whole system including the information (manual) on how to make them. I am specifically interested in making charcoal from coffee husks, rice husks , coconut husks, macadamia husks saw dust and maize cobs.

I don’t know whether your machines can support making charcoal from sugar cane wastes? please let me know.

Thanking you and looking forward to your response.


———- Answer ———-

Corncob2 IMG_1997

[ANSWER]:? From the listed raw materials (coffee husks, rice husks , coconut husks, macadamia husks saw dust, maize cobs, and sugar cane waste), in order to make them into charcoal briquette, we would like to classify them into 2 groups which require different process; Hot process and Cold process.

Hot process : coffee husks, rice husks, macadamia husks, sawdust

Cold process : Maize cobs, Coconut husks (coconut shell?), Sugar cane waste

The hot process is more complicated, requires high skilled personals, require 5-6 times higher investment than that of cold process.

The cold process is suitable for above mentioned materials (Maize cobs, Coconut husks (coconut shell?), Sugar cane waste). However, the best quality of charcoal briquette you can get among those three materials is coconut shell, maize cob and sugar case waste respectively.

We would recommend you to start with only maize cobs and coconut shell first because their quality are good.

About machines of cold process, we can supply to you the machine and guarantee that you will be able to produce good quality (high density) briquette.

We will not only provide you the machine but we will also provide to you all related information, document and know-how. You will receive full operating manual, document and necessary know-how with the machine. Please kindly find our machine’s brochure as attachment. The complete unit as quoted comprises 1 crusher, 1 mixer-dispenser (can be used for 2 extruders), and 2 extruders. The production capacity is about 300-400 kg/hour of wood charcoal or any other biomass charcoal. You can add 1 more extruder to the quotation to double the capacity because the mixer and crusher is already designed for 2 extruders. Automatic cutting units are optional. We already give the manual cutting units with the extruders but if you need automatic cuttings, you can purchase as optional unit.

We can also offer the conveyor and other additional unit as per your request too.

Please give us comment about the above suggestion. Then we will get back to you again with further information asap.