biomass pellet machine

The following is the Qingdao FOB price for standard configurations (arched feeder, forced feeder, pellet mill, and control cabinet). Final quotes depend on your specific material (wood, straw, or shells – each affects die selection and wear parts). We also offer customizations such as stainless steel contact parts or upgraded bearings.

The best way to get an accurate price? Tell us your target output, feedstock, and site conditions – we’ll tailor a solution that fits both your production goals and your budget.

This is almost always a moisture or compression ratio issue. For pine, fir, or eucalyptus sawdust, you need 13–17% moisture – too dry and the pellets won’t bind; too wet and they come out soft and fall apart.

If your moisture is right, check the die’s compression ratio. Different woods require different ratios – hardwoods need higher compression (tighter pellets), softwoods less. Also check the roller-to-die gap: 0.1–0.3mm is the sweet spot. Too wide and you lose pressure; too tight and you accelerate wear. And if it’s a brand new die, don’t skip the break-in – run oily material before switching to normal feedstock.

Straw is fibrous and low-density – it’s naturally harder to pelletize than wood.

The biggest culprit?
Moisture above 20%. At that level, material slips inside the die instead of compressing. Keep it at 12–15% for best results.
Next, check your compression ratio: straw typically needs 1:8–1:15 – higher than wood because the fibers need more time under pressure to bind. If your ratio is too low, pellets will be loose and crumbly.
Also watch your grind size – straw fibers must be crushed fine enough (ideally less than 1/3 of die hole diameter), or they’ll bridge and clog. For high-straw mixes, a forced feeder and anti-bridging hopper are non-negotiable.

Grass and hay (alfalfa, clover, Timothy) have lower bulk density and longer, more abrasive fibers.

They don’t flow into the die naturally – you need forced feeding and anti-bridging equipment just to keep material moving.
The compression ratio also differs: grass typically needs 1:8–1:15, similar to straw.
But here’s the catch – grass absorbs moisture unevenly, and steam conditioning (if you use it) has to be carefully controlled. Too much steam and pellets get “hairy” and rough on the surface.
Output? Expect 30–50% less than wood on the same biomass pellet machine – that’s just the nature of fibrous forage.

The trade-off: grass pellets are biodegradable, gentle on hooves, and highly absorbent, making them premium bedding material.

Yes – but shell materials are tricky. Peanut shells and rice husks are hard, abrasive, and high in lignin.

They need a lower compression ratio (around 1:5.5 for rice husks) – too high and you’ll choke the biomass pellet machine.
Moisture is critical: aim for 12–15%. Too dry and the pellets won’t bind; too wet and they’ll expand and crack as they cool.
The real challenge? Wear. Shell materials are tough on dies – you’ll want alloy steel (42CrMo) dies, not standard stainless, to get reasonable die life.
Also, pre-grind to under 5mm – larger particles create voids that weaken pellet integrity. Some operators blend shells with sawdust (up to 30%) to improve throughput and reduce die wear.

Absolutely – our team handles the full cycle: production process design, factory layout planning, equipment configuration, and even customs clearance. We send experienced engineers to site to guide the entire installation – mechanical assembly, electrical wiring, control system commissioning, and full-line integration testing. They stay until the line runs smoothly, and they train your operators hands-on before they leave.

As for visiting projects? Yes – we can arrange site visits to operational plants (subject to client approval), so you see real equipment running with real materials before you commit. We’ve delivered systems to over 140 countries, so chances are there’s a reference plant near you. And if travel is difficult, we can also arrange video walkthroughs. Our goal is simple: get you producing – fast, safely, and without costly trial-and-error.