1–4 T/H Ring Die Wood Pellet Machine

Looking for a wood pellet machine that can handle hard-to-bind materials - rice husk, Scots pine, hardwood offcuts, tree branches - and still deliver commercial output? The MKLH Series ring die wood pellet machine was engineered for exactly that challenge. With four models ranging from 1 to 4 t/h, it is built for industrial biomass fuel plants, power stations and heating-fuel pellet producers.

What sets this series apart is its vertical ring die design: the press rollers rotate while the ring die stays stationary. That configuration absorbs the strong counter-force generated by dense, resinous and difficult materials - the exact feedstocks that make ordinary flat die mills struggle.

 

1-4 T/H ring die wood pellet mill text

 

 

I am interested in this product

 

Model	Capacity	Main Power	Pellet Diameter	Machine Size (L×W×H)	Weight
MKLH560	1–1.5 t/h	90 kW	4–12 mm	2620×1640×1770 mm	5.2 t
MKLH560A	1.5–2 t/h	132 kW	4–12 mm	2680×1560×1770 mm	5.6 t
MKLH700	2–2.5 t/h	160 kW	4–12 mm	2560×1380×2020 mm	7.2 t
MKLH860A	3–4 t/h	250 kW	4–12 mm	3150×1550×2240 mm	9.5 t

 

 

The MKLH ring die biomass pellet machine is built around four core components:

 

1. Stainless steel ring die pelletizing chamber (ring die + press rollers). The forming heart of the machine. The stainless steel construction resists the high temperature, abrasion and corrosion that wood pelletizing generates, extending the service life of the most critical wear parts.
2. Oil pump. A circulating oil pump lubricates and cools the drive components, keeping operating temperature stable through long, continuous production shifts - essential for machines running 8+ hours a day.
3. High-power motor (pure copper windings). A large, stable power supply to the main shaft. Copper windings conduct efficiently and run cooler, supporting steady output under heavy load.
4. Gear reducer. Transmits motor power to the pelletizing chamber at the torque and speed the process requires, for smooth, reliable continuous operation.

Together, this layout gives the machine the thermal stability and mechanical strength to run hard materials all day without stalling or overheating.

 

 

 

Thanks to the rotating-roller/stationary-die design, it confidently presses materials that are notorious for being difficult to bind, including:

• Rice husk - high silica content, notoriously hard to pelletize
• Scots pine and other resinous softwoods
• Wood processing residue: branches, trunks and offcuts (pre-crushed)
• Crop hulls and shells and other agricultural residues
• General sawdust, wood chips and woody biomass

 

 

The machine produces dense, uniform cylindrical biomass fuel pellets. Pellet diameter is determined by the die you install - the MKLH Series covers 4–12 mm by changing the die plate, with 6 mm and 8 mm being the most common fuel pellet sizes worldwide.

 

Quality pellets from a Ring die Wood Chip Pellet maker Machine are characterized by:

• High density and mechanical durability - few fines, less dust in handling and storage
• Stable combustion-consistent feeding for boilers, stoves and power plants
• Trade-ready format-standardized pellets are easy to store, transport and sell

 

Where the pellets go: industrial and heating boilers, biomass power generation, home heating stoves, and regional or export fuel markets.

 

 

 

 

1. High output and high pellet density. The ring die structure provides a large, continuous pressing area, so each machine moves serious tonnage - from 1 t/h on the MKLH560 up to 4 t/h on the MKLH860A - while the long compression path produces hard, dense pellets.

2. Rotating rollers, stationary die - absorbs the counter-force of hard materials. This is the design's defining advantage. In the pelletizing chamber the press rollers spin against a fixed ring die, so the machine easily withstands the strong reaction forces that hardwood, Scots pine and other dense materials generate. That mechanical advantage is exactly why this machine accepts hard-to-bind feedstocks that stop other mills cold - and why its applicable material range is so wide.

3. High-power pure copper motor for stable operation. A generously sized motor with copper windings keeps output steady under fluctuating load, avoiding the speed drops that ruin pellet quality when the feed rate surges.

4. Vertical centrifugal feeding for uniform intake. Material drops vertically and is distributed evenly across the die by centrifugal force, so every part of the die surface works at the same rate - even feeding, even wear, consistent pellets.

5. Stainless steel discharge housing. Resists high temperature and corrosion where pellets exit the chamber at their hottest, and its heat-dissipating design protects pellet quality during continuous runs.

6. One machine, multiple pellet diameters. Different pellet sizes are obtained simply by changing the die plate - no second machine needed. Produce the size your market demands today and switch when your customers ask for something else.

 

 

 

Factor	Ring Die (MKLH Series)	Flat Die
Typical scale	Industrial / commercial plants	Farms, workshops, trials
Output range	1–4 t/h per machine (this series)	Usually well below 1 t/h
Hard / hard-to-bind materials	Excellent - stationary die absorbs counter-force	Limited
Pellet density & durability	High	Moderate
Investment	Higher	Lower

 

A complete biomass pellet plant typically runs:

 

Hammer mill (crusher) → Rotary drum dryer → MKLH ring die pellet machine → Counterflow cooler → Vibrating screener → Packing machine

Each stage protects pellet quality: milling sets particle size, drying sets moisture, the pellet machine forms the pellet, and cooling stabilizes it before bagging. We supply the full line, not just the pellet mill, and size every machine to your capacity target.

 

 

• Hard-to-bind material pelletizing - rice husk, Scots pine, wood branches and trunks, crop hulls and shells
• Large-scale biomass fuel production - regional supply or export-oriented pellet plants
• Power generation and heating fuel pellets - a renewable substitute for coal in boilers and district heating

 

 

 

• Factory-direct manufacturing - you buy from the builder, not a middleman.
• Engineering support before you buy - share your raw material and target capacity, and we recommend the right model, die and pre-treatment setup.
• Pre-shipment inspection - machines are run and checked before delivery.
• Long-term spare parts supply - dies, rollers and wear parts available for the life of the machine.
• Full-line capability - crushing, drying, pelletizing, cooling and packing from a single supplier with matched capacities.

 

 

 

Q1: What capacity does the MKLH ring die wood chip granulator offer?

Four models: MKLH560 (1–1.5 t/h), MKLH560A (1.5–2 t/h), MKLH700 (2–2.5 t/h) and MKLH860A (3–4 t/h). Actual output varies with raw material and preparation.

 

Q2: What raw materials can a vertical ring die pellet mill machine press?

Hard-to-bind and woody biomass: rice husk, Scots pine, crushed branches and trunks, wood offcuts, crop hulls and shells, sawdust and similar materials - even feedstocks that flat die machines struggle with.

 

Q3: Why can this Ring die rice straw pellet maker machine press materials that are hard to bind?

Its press rollers rotate while the ring die stays stationary. That design absorbs the strong counter-force generated by dense hardwood and resinous materials, so the machine keeps forming pellets where ordinary mills stall.

 

Q4: What pellet sizes can a ring die biomass fuel Pellet making Machine produce?

Pellet diameter is set by the die plate. This series covers 4–12 mm by changing dies; 6 mm and 8 mm are the most common fuel pellet sizes. Different diameters are obtained by swapping the die - no second machine required.

 

Q5: What moisture content is best for pelletizing?

As a general guideline, 12–15% for woody feedstock. A rotary drum dryer is normally used to bring crushed material into this range before it enters the pellet machine.

 

Q6: What is the ring die wood pelletize machine built from?

Key components include a stainless steel ring die pelletizing chamber, a circulating oil pump for lubrication and cooling, a high-power pure copper motor, and a gear reducer for stable torque delivery.

 

Q7: Do you supply the complete production line?

Yes - hammer mill, dryer, ring die pellet machine, cooler, screener and packing machine as a matched line, sized to your target capacity.

 

Q8: How do I get a quote?

Contact us with your raw material type, target capacity and desired pellet size. We will recommend the right MKLH model and send factory-direct pricing.

 

 

 

 

Customer Visit

 

 

Quality Certificate

 

Hot Tags: 1–4 T/H Ring Die Wood Pellet Machine, China 1–4 T/H Ring Die Wood Pellet Machine manufacturers, suppliers, factory, biomass pellet manufacturing machine, wood pelletizer for storage, pellet production line for wood pellet storage, wood pellet press homemade, pellet production equipment for wood pellet, pelletizer for wood pellet density control