Double Roller Pellet Machine

Product Introduction

The Double Roller Pellet Machine is a high-torque flat die pellet press engineered with two synchronized compression rollers instead of one. This proven dual-roller design doubles the pressing force applied to the material, eliminates roller slippage on oily or fibrous mixtures, and produces exceptionally dense, smooth pellets with a forming rate exceeding 95%. Whether you process corn, soybean meal, fish meal, alfalfa, or sawdust, the two-roller configuration delivers consistent output and drastically reduces die wear compared to single-roller alternatives. Built around a heavy-duty oil-bath gearbox and fitted with SKF/NSK bearings, this machine thrives in continuous farm operation. One double roller pellet mill replaces multiple single-purpose machines — simply change the flat die to switch from 2mm chick starter to 8mm cattle cubes or 6mm biomass briquettes.

Why Choose Us

Twice the Compression, Superior Pellet Quality: Two large-diameter alloy rollers press material through the die simultaneously. This applies uniform, high pressure that eliminates weak, crumbly pellets. Result: pellets with density up to 1.3 g/cm³ that sink immediately in water and burn longer in stoves.
Zero Roller Slippage on Difficult Materials: Single-roller machines often slip on high-oil feeds (fish meal, full-fat soybean) or fibrous biomass. Our double roller design maintains positive grip, ensuring a steady material feed and stable production rate regardless of recipe.
Extended Die & Roller Life: By distributing the workload across two rollers, wear is cut by nearly half compared to a single-roller unit. Dies last 800–1,000 tons, and rollers can be re-grooved multiple times, dramatically lowering your maintenance cost per ton.
Higher Output, Same Motor Size: A 37 kW double roller pellet machine delivers 600–800 kg/h, matching or exceeding the output of larger single-roller mills. You get more pellets per kWh of electricity.
Built for 24-Hour Operation: ZQ-350 oil-bath gearbox, 45# forged steel main shaft, and NSK/SKF bearings are standard. Enclosed housing with dust seals, emergency stop, and overload protection make it safe for one-person operation.
Quick Die Change for Multi-Species Farms: Interchangeable flat dies from 2mm to 12mm let you produce feed for poultry, pigs, cattle, fish, and even biomass fuel with the same machine — all in under 15 minutes per swap.

Technical Parameter

Detailed Technical Specifications – FL-300 Double Roller Pellet Machine
*(Specifications are for our best-selling double roller model. Seven models available, from 150 kg/h to 1500 kg/h output.)

Parameter	Specification
Model	FL-300 Double Roller Flat Die Pellet Mill
Number of Rollers	2 (large diameter, individually adjustable)
Roller Diameter × Width	150 mm × 55 mm (each roller)
Output Capacity	600–800 kg/h (corn-based, Φ6mm die, ≤13% moisture) 300–500 kg/h (Φ2mm die, aquafeed formula)
Pellet Diameter Range	2 / 3 / 4 / 6 / 8 / 10 / 12 mm (quick-change flat dies)
Forming Rate	≥95%
Pellet Density	1.1–1.3 g/cm³
Main Motor	37 kW (50 HP), 3-phase, custom voltage (220V/380V/440V/480V)
Roller & Die Material	20CrMnTi alloy steel, vacuum heat-treated to HRC58-62
Die Service Life	Approx. 800–1,000 tons per die
Roller Adjustability	Adjustable gap between roller and die for optimal compression
Bearings	NSK / SKF
Gearbox	ZQ-350 heavy-duty enclosed oil-bath, noise ≤75 dB
Feeding System	Gravity hopper; optional automatic screw conveyor
Machine Weight	720 kg net / ~850 kg gross (fumigated wooden crate)
Machine Dimensions (L×W×H)	1650×750×1600 mm
Raw Material Moisture	10–15% recommended
Drive Options	Electric motor / Diesel engine / Tractor PTO
Additional Models	FL-200 (150-250 kg/h), FL-260 (300-500 kg/h), FL-400 (1000-1500 kg/h)

Proven Results Backed by Data

Proven Performance of the Double Roller Design
Data collected from 200+ farms and feed workshops using our double roller pellet machines across 40 countries (2022–2024):

40–50% Feed Cost Reduction: Farmers producing their own pellets with the double roller machine halved their monthly commercial feed purchases on average.
15% Faster Animal Weight Gain: Fresh, high-density pellets retain natural oils and nutrients, accelerating broiler growth and pig finishing times.
No Slippage on Oily Aquafeed: Shrimp and fish farmers confirm the dual-roller mechanism processes fish meal-rich formulas without roller sticking — a common failure point on single-roller units.
98% Operational Uptime: With routine greasing of the two roller bearings, users report an average of 350 production days per year.
Investment Return in 6–10 Months: The majority of small farm customers recover the full machine cost within one year solely through feed savings.

Applicable

The Double Roller Pellet Machine is the versatile core of any on-farm feed production system. It produces:

Animal Feed Pellets: Broiler, layer, pig, cattle, goat, sheep, horse, rabbit feed
Aquatic Feed Pellets: Sinking feed for tilapia, catfish, carp, shrimp, crab (fine dies 1.5–4mm)
Biomass Fuel Pellets: Sawdust, wood shavings, rice husk, coffee husk, groundnut shell, bagasse
Simply swap the flat die and adjust roller clearance to switch between applications. One machine, year-round utilization.

FAQ

What is the advantage of a double roller pellet machine over a single roller one? A single roller applies pressure from one side, which can cause uneven die wear and slippage on oily or fibrous materials. The double roller design balances the force, grips the feed positively, doubles compression, and extends die life significantly. It’s the industry standard for reliable flat die pellet production.

Can I adjust the gap between the rollers and the die? Yes. Each roller has an independent adjustment bolt. Setting the correct roller-die gap is critical for pellet quality and die life. We provide a detailed video guide and include the gap adjustment tool with the machine.

Is this machine suitable for making floating fish feed? This double roller pellet machine produces high-density sinking pellets (density ≥1.1 g/cm³), ideal for bottom-feeding species like tilapia, catfish, and shrimp. For floating fish feed, a twin-screw extruder is required — we supply those as well.

How often do I need to replace the rollers? Rollers can process 500–800 tons of feed before needing replacement or re-grooving. The double roller design means wear is shared, and we include a free spare set with every machine. Replacement takes about 30 minutes.

What materials can I pellet with this double roller machine? Almost any powder or ground material with 10–15% moisture: corn, wheat, soybean meal, rice bran, alfalfa, grass powder, straw, fish meal, bone meal, sawdust, and more. For best results, use a hammer mill to achieve 2–5mm particle size before pelleting.

Customize

Customize Your Double Roller Pellet Machine
Tell us your daily production goal, raw materials, and power availability. We will configure the perfect double roller pellet machine:

Model Selection: 150 to 1500 kg/h output, flat die or ring die upgrade path
Power Customization: 220V/380V/440V/480V electric, or diesel (Lister, Petter, Changchai), or PTO
Die Package: Starter set with 3 commonly used pellet sizes
Optional Equipment: Hammer mill, mixer, steam conditioner, pellet cooler, automatic bagging system
Export Packing: Fumigated wooden crate with VCI anti-rust, full metal strapping
Standard machines ship in 7 working days. Complete turnkey feed lines also available.

Own the Double Roller Advantage — Send an Inquiry Now
Don’t settle for single-roller inefficiency. Invest in a Double Roller Pellet Machine and experience higher output, denser pellets, and lower maintenance from day one. Click below to receive a personalized quotation, a free “Pellet Production Starter Guide,” and a machine demonstration video within 12 hours.