9F-70 Animal Feed Grass Grinder Machine

Technical Specifications: 9F-70 Forage Grinder

Below is the detailed technical parameter table for the 9F-70 model. This machine is engineered for high-intensity agricultural and biomass operations.

Introduction to the 9F-70 Animal Feed Grass Grinder Machine

At Forage Balers, we recognize that the foundation of efficient livestock management and biomass energy production lies in the quality of raw material processing. The 9F-70 Animal Feed Grass Grinder Machine represents the pinnacle of grinding technology, specifically engineered for large-scale agricultural enterprises, dairy farms, and biomass power plants. This is not merely a piece of equipment; it is a central processing hub capable of transforming massive round bales, square bales, and loose forage into uniform, high-quality feed or fuel.

As the agricultural sector moves toward Total Mixed Ration (TMR) feeding and precision agriculture, the demand for a large capacity tub grinder for cattle farm operations has skyrocketed. The 9F-70 answers this call with a robust 191 kW diesel power plant and a sophisticated cylindrical feeding system. Unlike smaller chaff cutters, this Grass Grinder Machine utilizes a heavy-duty hammer mill mechanism to pulverize tough materials—including corn stover, alfalfa, wheat straw, and even light forestry waste—turning them into palatable fiber for ruminants or combustible material for energy generation.

When you decide to buy grass grinder equipment of this magnitude, you are investing in efficiency. The 9F-70 eliminates the bottleneck of feed preparation, boasting a productivity range of 5 to 20 tons per hour. Whether you are dealing with high-moisture silage or dry hay, this machine’s adaptability ensures consistent output, reducing feed waste and improving herd health through better digestion.

Engineering Excellence: Deep Dive into the 9F-70 Design

The superior performance of the 9F-70 implies a rigorous engineering process focused on durability and kinetic efficiency. Let us break down the core components that make this forage grinder a market leader.

1.The Powerhouse: 191 kW Diesel Engine

The heart of the 9F-70 is its massive diesel engine, delivering a rated power of 191 kW. This diesel engine grass grinder machine price point is justified by its independence from the electrical grid. In remote farming areas or open fields where high-voltage electricity is unavailable, the 9F-70 operates autonomously. The engine provides the high torque necessary to maintain a stable PTO shaft speed of 1800 r/min, ensuring that the rotor does not stall even when processing dense, wet bales.

2. Cylindrical Feeding System (Tub Grinder Mechanism)

The "Cylindrical Feeding System" listed in the specifications refers to the rotating tub design. This is a critical feature for handling large bales. Operators can drop entire round bales into the tub using a grapple loader. As the tub rotates, it feeds the material consistently into the hammermill at the base. This gravity-assisted, rotation-controlled feeding ensures a constant load on the engine, preventing shock loads and maximizing fuel efficiency.

3. Rotor and Hammer Configuration

The core grinding action is performed by a specialized rotor with a working diameter of 700mm. Equipped with 64 high-strength alloy hammers, the rotor spins at high velocities. These hammers impact the forage against the cutting screens.

• Kinetic Impact: The 64 hammers provide thousands of impacts per minute.

• Durability: The hammers are heat-treated to resist wear from abrasive silica found in rice straw and corn stalks.

• Replaceability: The design allows for quick hammer rotation and replacement, minimizing downtime during maintenance cycles.

4. Heavy-Duty Welded Housing

Vibration is the enemy of grinding machinery. The 9F-70 features a "Welded Type" housing manufacturing method using reinforced steel plates. This rigid structure absorbs the high-frequency vibrations generated during the grinding process, protecting the bearings and the engine mount. With a structural weight of 5500 kg, the machine sits firmly on the ground, providing a stable platform for heavy operations.

5. Discharge and Material Handling

Once the material passes through the grinding chamber (width 1100mm), it is ejected via a conveyor system. The high discharge point allows for the direct loading of TMR wagons or accumulation in high piles for bulk storage. The folding design of the conveyor ensures the machine remains compact (7700mm length) during transport.

Application Scenarios and Compatibility

The versatility of the Animal Feed Processing Equipment category is best exemplified by the 9F-70. It is not limited to a single type of crop.

Livestock Feed Preparation

For dairy and beef cattle, particle size is crucial. If the straw is too long, cattle will sort it out; if it is too fine, it can lead to acidosis. The 9F-70 allows farmers to adjust the screen size to produce the perfect fiber length (usually 2-5 cm) for TMR mixers.

• Alfalfa and Timothy Hay: Grinding these prevents wastage and allows for better mixing with concentrates.

• Corn Stalks: Breaking down the tough outer rind of corn stalks exposes the inner pith, significantly increasing palatability and sugar absorption for the animals.

Biomass and Bio-energy

Beyond animal husbandry, the 9F-70 serves as a heavy duty straw grinder for biomass power plant facilities. Power plants require biomass fuel to be of a consistent size for efficient combustion. This machine processes wheat straw, cotton stalks, and reed grass into uniform biomass fuel, which can then be briquetted or burned directly.

Composting and Mushroom Cultivation

Large-scale mushroom farms require vast amounts of substrate. The 9F-70 can process straw into the specific consistency needed for mycelium growth. Similarly, municipal composting facilities use this machine to break down green waste, accelerating the decomposition process.

Compatibility with Other Machinery

The 9F-70 fits seamlessly into a larger agricultural workflow.

• Grapple Loaders/Telehandlers: Essential for loading bales into the tub.

• TMR Mixers: The ground hay is discharged directly into mixers.

• Pellet Mills: For feed pellet production, the 9F-70 acts as the primary coarse grinding stage before fine pulverization.

• Baling Machines: If you are re-baling processed forage for export, this grinder prepares the material for high-density balers.

Project Case Studies: Validating Performance

To truly understand the value of the 9F-70 forage grinder specifications, we look at real-world deployments where Forage Balers has facilitated the setup of grinding lines.

Case Study 1: Large-Scale Dairy Operation in Wisconsin, USA

Challenge: A dairy farm with 3,000 head of cattle was struggling with feed sorting. Their existing tub grinder was underpowered, leading to long processing times and inconsistent particle sizes that affected milk yield. Solution: The farm managers decided to request a quote for tub grinder upgrades and selected the 9F-70. Implementation: The 191kW power allowed them to grind frozen bales during Wisconsin's harsh winter. The 64-hammer configuration processed corn stover efficiently. Result: The farm reported a 15% reduction in feed waste and a measurable increase in milk butterfat content due to improved fiber digestion. The machine processes 18 tons of silage per hour, cutting their daily work time by half.

Case Study 2: Biomass Pellet Plant in Nakhon Ratchasima, Thailand

Challenge: A biomass energy company needed to process sugarcane leaves and rice straw for pellet production. The material was tough, abrasive, and often had high moisture content. Solution: They searched for a straw hammer mill capable of continuous 12-hour shifts. The 9F-70 was deployed as the primary size reduction unit. Result: The machine's welded housing withstood the vibration of high-speed grinding. The "Cylindrical Feeding System" allowed for the continuous feeding of loose straw. The facility now produces 120 tons of ground biomass daily, supplying three local pellet mills.

Case Study 3: Sheep Feed Lot in New South Wales, Australia

Challenge: Drought conditions required the utilization of low-quality scrub and rough hay to maintain the flock. Solution: The station owners looked for a grass grinder machine for sale that was mobile enough to move between different paddocks (using a tractor to tow, despite being fixed operation). Result: The 9F-70 converted rough, unpalatable scrub into edible fiber. By mixing the ground hay with molasses and urea, the farm sustained 5,000 sheep through the dry season, proving the machine's ROI within six months.

Maintenance, Safety, and Operational Guide

Owning a Hay Chopper of this size requires adherence to strict maintenance protocols to ensure longevity and safety.

Operational Safety

• Zone Clearance: Due to the high speed of the rotor (1800 r/min), a safety zone of 50 meters should be maintained around the discharge area.

• Debris Check: Before loading bales, ensure all baling twine (if plastic) is removed if it's not biodegradable, and check for stones or metal which can damage the hammers.

• Emergency Stop: Familiarize all operators with the hydraulic control panel's emergency shut-off procedures.

Routine Maintenance

• Hammer Rotation: The 64 hammers have four cutting corners. When one corner wears down, rotate the hammer to expose a fresh edge. This quadruples the life of a set of hammers.

• Screen Inspection: Check the screen for holes or cracks daily. A damaged screen will result in inconsistent feed size.

• Greasing: The main rotor bearings are under immense stress. Lubricate them every 8 hours of operation with high-temperature lithium grease.

• Belt Tension: Check the drive belts from the diesel engine to the rotor shaft weekly to prevent slippage and power loss.

Precision Engineering: Core Components of the 9F-70 Grass Grinder Machine

The durability of an industrial-grade Grass Grinder Machine is not determined by its outer shell, but by the internal core components that withstand high torque and high-frequency impacts. At Forage Balers, every power transmission node of the 9F-70 has been reinforced to ensure the machine operates without downtime, even when processing high-moisture forage or oversized bales.

EVER-POWER High-Torque Heavy-Duty Gearbox

The gearbox is the rhythmic heart of the 9F-70’s cylindrical feeding system (the Tub). Tasked with rotating a drum loaded with tons of forage, this EVER-POWER gearbox is engineered for an extreme reduction ratio and massive torque capacity.

• Reduction and Stability: It utilizes industrial-grade large-modulus gears treated with a carburizing and quenching process. This results in extreme tooth surface hardness, allowing the system to resist instantaneous shock loads effectively.

• Self-Lubricating System: The internal design features unique oil channels ensuring that gears remain fully lubricated during continuous operations exceeding 10 hours, preventing excessive wear from overheating.

• Cost-Effective Excellence: As a standout feature, the EVER-POWER gearbox is celebrated in the market for being high-quality yet affordable. It provides world-class reliability and precision control at a price point that maximizes your return on investment, making it a favorite for those who need industrial performance on a realistic budget.

Reinforced PTO Drive Shaft

The PTO Shaft serves as the critical bridge between the 191kW diesel engine and the high-speed hammer rotor. At an operational speed of 1800 r/min, the dynamic balance and structural strength of this shaft are paramount.

• Universal Joint Design: To absorb vibrations, the drive shaft incorporates reinforced universal joints. This maintains linear and stable power output even during prolonged, high-intensity grinding sessions.

• Safety Protection: The shaft is equipped with an integrated overload shear bolt or a friction-plate clutch. If a large foreign object like a stone or metal chunk accidentally enters the chamber, the shaft instantly disconnects the power flow, protecting the engine and transmission from catastrophic damage.

Industrial Grade Hammer Mill Rotor

As detailed in our technical specifications, the 9F-70 features a rotor armed with 64 hammers. This assembly is the core factor determining the output of the Animal Feed Grass Grinder Machine.

• Dynamic Balance Calibration: Every rotor undergoes high-precision laser dynamic balance calibration before leaving the factory. This ensures the machine maintains low noise levels and minimal body displacement despite thousands of strikes per minute.

• Alloy Steel Construction: The hammers are forged from manganese alloy steel with tungsten-chromium alloy surfacing on the edges. This "hard-on-the-outside, tough-on-the-inside" property makes the hammers incredibly wear-resistant without being brittle.

Advanced Hydraulic Control System

The automation and responsiveness of the 9F-70 rely heavily on its sophisticated hydraulic architecture.

• Dual-Pump Configuration: Independent hydraulic pumps drive the rotation of the feeding tub and the lifting of the discharge conveyor separately. This design prevents pressure interference when multiple actions are performed simultaneously.

• Integrated Cooling: A large-capacity hydraulic oil tank paired with a forced air-cooling radiator ensures stable oil viscosity. This prevents system lag even in tropical climates or high-temperature environments.

Heavy-Duty Pillow Block Bearings

The bearings supporting the main shaft are often the most vulnerable parts of a grinder. We utilize heavy-duty pillow block bearings manufactured to elite international standards.

• Dust-Proof Sealing: Grinding operations generate immense amounts of dust. Our bearing housings feature multi-lip seals to completely block dust from entering the internal race, significantly extending the maintenance cycle.

• External Grease Nipples: These allow operators to perform daily lubrication without removing the machine's casing. This small but vital detail significantly improves the user experience for those who buy grass grinder equipment for long-term daily use.

Why the 9F-70 Stands Out in the Global Market

The market for Animal Feed Grass Grinder Machines is competitive, but the 9F-70 distinguishes itself through its specific combination of mobility (via wheels), massive power (191kW), and capacity. Unlike smaller PTO-driven grinders that rely on a tractor's engine, the 9F-70's independent power source saves wear and tear on your expensive tractors.

Furthermore, the "Fixed Operation" structural form coupled with a wheel track of 2200mm provides a wide, stable base that resists tipping, a common issue with top-heavy tub grinders on uneven terrain. The How to grind wet grass for silage question is answered by the high airflow design of the 9F-70’s rotor, which helps push moist material through the screen, preventing clogging that plagues lesser machines.

About Forage Balers

Forage Balers is a premier global provider of comprehensive agricultural machinery solutions. We specialize in the forage and biomass supply chain, connecting farmers and industrial processors with top-tier equipment ranging from balers and wrappers to heavy-duty grinders like the 9F-70.

Our brand is built on a foundation of Experience, Expertise, Authoritativeness, and Trustworthiness (EEAT). We don't just sell machines; we provide engineered solutions. Our team includes agricultural engineers and supply chain experts who understand the nuances of feed processing.

• Global Reach: We ship to over 80 countries, handling all logistics, customs, and installation guidance.

• Quality Assurance: Every 9F-70 unit undergoes rigorous load testing before leaving the factory. We verify engine performance, hydraulic pressures, and rotor balance.

• Spare Parts Guarantee: We understand that downtime costs money. Forage Balers maintains a robust inventory of hammers, screens, belts, and engine filters, ensuring that replacement parts can be dispatched immediately to your location.

• Customization: We offer customization on screen sizes and discharge conveyor lengths to fit your specific facility layout.

When you partner with Forage Balers, you are securing a long-term ally in your agricultural success.

If you are interested in purchasing the 9YG-1.0C round baler, please feel free to contact us. We offer flexible payment options and competitive pricing based on different order quantities. Whether you are a dealer or a farm owner, we are ready to provide you with the perfect equipment solution.

Global Customer Reviews

"A Beast for Processing Alfalfa"

★★★★★ "We've been running the 9F-70 for about eight months now here in Bakersfield, California. Honestly, it's a beast. We used to have issues with our old grinder choking on the dense alfalfa bales, especially the morning ones with dew. This thing doesn't even hesitate. The diesel engine is loud, sure, but the power is undeniable. It’s totally changed how we manage our TMR mixing. Highly recommend Forage Balers for the smooth shipping process too." — Review from California, USA

"Perfect for Biomass Project"

★★★★★ "Our project in Bandung, Indonesia requires grinding tons of rice straw for power generation. We needed something that could run all day. The 9F-70 is solid. The hammers are durable against the silica in the straw. We did have to adjust the screen size a bit to get the burn rate right, but the support team at Forage Balers helped us figure that out quickly. Good machine, good price." — Review from West Java, Indonesia

"Reliable in the Cold"

★★★★☆ "I was worried about the diesel engine starting in our winters up here in Edmonton, Alberta, but so far, so good. We use it to grind hay for beef cattle. It saves us so much hay because the cattle don't waste the stalks anymore. The only reason I give 4 stars is that it's a big unit to move around the yard, but once it's set, it grinds faster than anything we've used before." — Review from Canada

"Great Service and Parts Availability"

★★★★★ "We bought this for a feedlot near Toowoomba, Australia. The machine is tough—Aussie tough. But what really impressed me was when we needed a replacement set of hammers. I thought it would take weeks to get here, but Forage Balers got them to us in record time. It keeps our operation running without hiccups. The tub grinder design saves us so much labor compared to hand feeding." — Review from Queensland, Australia

"High Capacity is Real"

★★★★★ "We run a communal feed center in Punjab, India. We process feed for hundreds of local farmers. The productivity of 20 tons per hour isn't a lie. If you keep the loader moving, this machine eats everything. It’s very stable during operation. It has become the most important machine in our facility." — Review from India

FAQ

Can the 9F-70 process wet grass?

Yes. The high-speed rotor and airflow design allow it to process high-moisture forage (silage) effectively. However, the productivity (t/h) may vary slightly compared to dry hay, and screen selection is important to prevent clogging.

What is the fuel consumption of the 191kW engine?

Fuel consumption depends on the load and the material density. On average, for heavy grinding operations, it is optimized for industrial efficiency. Contact our sales team for specific consumption charts based on your crop type.

How often do the hammers need to be replaced?

This depends on the material. For soft hay, hammers can last hundreds of hours. For abrasive straw or corn stover, the life is shorter. Remember that the hammers are reversible (4 corners), extending their usable life significantly.

Do you offer financing or leasing options?

We work with various international partners. Please contact us to discuss financing options available in your region.

How is the machine shipped?

Due to its size (7.7 meters length), the 9F-70 is typically shipped in a 40ft High Cube container or via Flat Rack depending on the final assembly state. Forage Balers handles the loading and securing to ensure it arrives in perfect condition.