9F-70 Forage Chopper/ Feed Grinder for Crushing Grass

9F-70 Forage Chopper Overview

The 9F-70 forage chopper/feed grinder is a robust, industrial-grade machine designed primarily for processing grass, straw, forage, and other agricultural materials into finely crushed feed suitable for livestock. Manufactured for heavy-duty applications in farms, feed mills, and biomass processing facilities, it features a powerful 191 kW diesel engine that drives a hammer-type rotor system with 64 high-strength alloy hammers, operating at a PTO shaft speed of 1800 r/min. This configuration enables efficient pulverization of tough materials such as alfalfa, corn stover, wheat straw, and reed grass through high-impact kinetic forces within a 1100 mm wide grinding chamber.

The machine employs a cylindrical feeding system, allowing entire round or square bales to be loaded via grapple loaders. As the tub rotates, gravity assists in feeding the material consistently into the hammermill, preventing overloads and ensuring uniform output. Adjustable screen sizes control particle length, typically ranging from 2-5 cm, making it ideal for total mixed ration (TMR) feeding, which enhances livestock digestion and reduces waste. It handles both dry hay and high-moisture silage without clogging, thanks to its high airflow design and reinforced welded housing that absorbs vibrations for stable operation.

Product Specifications

Serial No.	Item	Unit	Specification
1	Model Name	/	9F-70 Forage Grinder
2	Structural Form	/	Fixed Operation
3	Drive Mode	/	Fixed Power
4	Power Form	/	Diesel Engine
5	Rated Power of Bobbin Force	kW	191
6	Housing Manufacturing Method	/	Welded Type
7	Rotor Structure Form	/	Hammer Type
8	Number of Hammers	pcs	64
9	Rotor Disc Diameter	mm	450
10	Rotor Working Diameter	mm	700
11	Number of Hammers	pcs	64
12	Grinding Chamber Width	mm	1100
13	Overall Dimension (L×W×H)	mm	7700×2600×2900
14	PTO Shaft Speed	r/min	1800
15	Wheel Track	mm	2200
16	Productivity	t/h	5-20
17	Structural Weight	kg	5500
18	Feeding Method	/	Cylindrical Feeding System

9F-70 Forage Chopper Advantages

1. High Efficiency and Productivity
The 9F-70 Forage Chopper boasts an impressive productivity rate of 5-20 tons per hour, making it ideal for large-scale farming and industrial operations. Its powerful 191 kW diesel engine and hammer-type rotor system with 64 high-strength alloy hammers ensure rapid and efficient pulverization of tough materials like alfalfa, wheat straw, and corn stover. This efficiency reduces operational time and labor, maximizing output while maintaining consistent quality.

2. Versatile Material Handling
Designed to process a wide range of materials, the 9F-70 handles both dry and high-moisture forage without clogging. It efficiently crushes grass, straw, silage, and other agricultural materials into finely chopped feed. This versatility extends to biomass fuel preparation, composting, and mushroom substrate production, making it a multi-functional tool for agricultural and industrial use.

3. Superior Feed Quality for Livestock
With adjustable screen sizes, the machine ensures precise control over particle lengths between 2-5 cm, producing feed optimized for total mixed ration (TMR) systems. This promotes better digestion, reduces feed waste, and enhances livestock health and productivity. The consistent and uniform feed output supports the nutritional needs of various livestock, improving overall farm efficiency.

4. Robust and Durable Construction
The 9F-70 is built for heavy-duty applications with a reinforced welded housing and a stable structure designed to minimize vibrations during operation. Its durable construction ensures long-term reliability, even under demanding conditions. The high-strength alloy hammers and wear-resistant grinding chamber further enhance its lifespan, reducing the need for frequent maintenance or repairs.

5. Efficient Feeding System
The cylindrical feeding system allows entire round or square bales to be easily loaded using grapple loaders. The rotating tub and gravity-assisted feeding mechanism ensure smooth and consistent material flow into the hammermill, preventing jams and ensuring uninterrupted operation. This efficient design streamlines the feeding process, saving time and effort for operators.

6. Customizable and Easy Operation
The machine's adjustable settings, including screen sizes and PTO shaft speed, allow operators to customize output based on specific requirements. Its user-friendly design simplifies operation, while features like high airflow design prevent clogging and ensure smooth performance. The 9F-70 is engineered to deliver reliability and ease of use, making it an indispensable asset for farms and feed mills.

9F-70 Feed Grinder Applications

The 9F-70 Feed Grinder is a versatile, high-performance machine designed to meet a variety of agricultural and industrial needs. Its robust design and powerful features make it suitable for applications ranging from livestock feed preparation to biomass processing and beyond.

One of the primary applications of the 9F-70 is livestock feed production. The grinder is specifically engineered to process a wide variety of forage materials, including grass, alfalfa, wheat straw, corn stover, and reed grass, into finely crushed feed. The adjustable screen sizes allow for precise particle length control between 2-5 cm, ensuring the output is optimized for total mixed ration (TMR) feeding systems. This not only enhances livestock digestion but also reduces feed waste, improving overall farm efficiency. The machine is capable of handling both dry hay and high-moisture silage without clogging, making it an essential tool for farms focused on delivering high-quality feed to their livestock.

In addition to feed production, the 9F-70 is widely used in biomass fuel preparation. Its ability to process large volumes of agricultural residues, such as straw and corn stalks, makes it ideal for creating biomass materials used in energy production. The finely crushed output can be used for pelleting or direct combustion, supporting sustainable energy initiatives and reducing agricultural waste.

The machine is also highly effective for compost production. By grinding organic materials into smaller particles, the 9F-70 accelerates the decomposition process, making it a valuable tool for farms and facilities engaged in organic farming or waste recycling. Similarly, it is used in mushroom substrate preparation, where finely crushed agricultural residues provide the ideal growing medium for mushrooms.

With its ability to handle round and square bales, high productivity rates (5-20 tons per hour), and durable construction, the 9F-70 Feed Grinder is an essential solution for farms, feed mills, biomass facilities, and composting operations. Its versatility and efficiency make it a reliable choice for addressing modern agricultural and industrial challenges.

Working Principle

1. Powerful Hammer-Type Rotor System
The 9F-70 forage chopper operates on a hammer-type rotor system powered by a 191 kW diesel engine. This rotor is equipped with 64 high-strength alloy hammers that spin at a PTO shaft speed of 1800 r/min. As the hammers rotate at high velocity, they create strong kinetic forces that crush and pulverize tough materials like grass, straw, corn stover, and alfalfa. This high-impact grinding mechanism ensures efficient processing of both dry and moist forage materials into smaller, uniform particles.

2. Cylindrical Feeding System with Rotating Tub
The machine features a cylindrical feeding system designed to accommodate entire round or square bales of forage. Using grapple loaders, bales are loaded into the rotating tub, which uses gravity and centrifugal force to ensure consistent feeding into the hammermill. This design prevents material blockages and ensures smooth operation by distributing the forage evenly into the grinding chamber. The rotating tub mechanism, combined with gravity assistance, eliminates the risk of overloading, maintaining stable performance throughout the process.

3. Adjustable Grinding Chamber and Screens
The grinding chamber of the 9F-70 is equipped with adjustable screens that control the particle size of the output. These screens allow operators to customize the forage length, typically ranging from 2-5 cm, depending on specific application requirements. The adjustable feature ensures that the processed materials meet the desired specifications, whether for livestock feed, biomass fuel, or compost preparation. The wide grinding chamber (1100 mm) enhances efficiency by accommodating large material volumes.

4. High-Airflow and Reinforced Housing Design
The machine employs a high-airflow design that prevents clogging, even when processing high-moisture materials like silage. The reinforced welded housing absorbs vibrations during operation, ensuring stable and smooth performance. This design reduces wear and tear while maintaining consistent output quality. Together with the airflow mechanism, the sturdy construction ensures durability and reliable operation, even under heavy-duty agricultural and industrial conditions.

FAQs

Q: What materials can the 9F-70 process?
A: The 9F-70 forage chopper is designed to handle a wide variety of agricultural materials, including grass, straw, alfalfa, corn stover, wheat straw, reed grass, high-moisture silage, and dry hay. It efficiently crushes these materials into uniform particles suitable for livestock feed, biomass fuel, or composting, making it a versatile machine for diverse applications.

Q: What is the productivity rate of the 9F-70?
A: The machine has a productivity rate of 5-20 tons per hour, depending on the type of material being processed and the desired particle size. This high output capability makes it ideal for large-scale agricultural operations, feed mills, and industrial biomass processing facilities, reducing overall processing time and labor costs.

Q: How does the feeding system work?
A: The 9F-70 features a cylindrical feeding system with a rotating tub that accommodates entire round or square bales. The tub rotates to feed forage consistently into the hammermill using gravity and centrifugal force. This mechanism prevents overloading and ensures smooth, uninterrupted operation, even with large or tough bales.

Q: Can the machine handle high-moisture silage?
A: Yes, the 9F-70 is specifically designed to process both dry and high-moisture materials without clogging. Its high-airflow design prevents blockages, while the reinforced housing and hammer-type rotor system maintain stable performance, even with challenging materials like silage or wet straw.

Q: What particle sizes can the 9F-70 produce?
A: The forage chopper is equipped with adjustable screens that allow control over particle size, typically ranging from 2-5 cm. This customization ensures the processed material meets the specific requirements for total mixed ration (TMR) feeding, biomass fuel preparation, or composting applications.

Q: What is the power source for the machine?
A: The 9F-70 is powered by a 191 kW diesel engine that drives the hammer-type rotor system. This powerful motor delivers sufficient energy to process tough materials efficiently while ensuring reliable performance for continuous, heavy-duty operations in farms or industrial settings.

Q: Is the 9F-70 durable and reliable for long-term use?
A: Yes, the 9F-70 features a reinforced welded housing and high-strength alloy hammers designed for durability and long-term reliability. The vibration-absorbing construction minimizes wear and tear on the machine, even under heavy-duty usage, ensuring a longer lifespan with reduced maintenance requirements.

Q: What are the machine's dimensions and weight?
A: The 9F-70 forage chopper has overall dimensions of 7700×2600×2900 mm and weighs approximately 5500 kg. These specifications make it a robust yet manageable machine for use in various agricultural and industrial environments, ensuring stability and efficiency during operation.

Q: What are the main applications of the 9F-70?
A: The machine is primarily used for livestock feed production, processing forage into finely chopped feed for total mixed ration (TMR) systems. Additionally, it is used for biomass fuel preparation, composting, and mushroom substrate production, making it a multi-functional solution for modern agricultural and industrial needs.

Q: How is the machine maintained and operated?
A: The 9F-70 is designed for user-friendly operation, with simple controls for adjusting screen sizes and feeding mechanisms. Regular maintenance includes checking the hammers, screens, and rotor for wear, as well as ensuring the diesel engine is properly serviced. Proper maintenance ensures consistent performance and extends the machine’s lifespan.

Customer Reviews

United States Customer
"The 9F-70 forage chopper has been a game-changer for my farm. Its ability to handle both dry hay and silage with consistent bale density is exceptional. The durability of the machine and its simple operation make it perfect for our large-scale operations. Maintenance is quick and efficient, saving us valuable time during peak seasons!"

Australia Customer
"We’ve been using the 9F-70 feed grinder for over a year now, and it’s exceeded our expectations. The machine processes both high-moisture silage and dry hay effortlessly, even in the harsh Australian climate. The adjustable screens allow us to produce feed tailored to our livestock's needs, improving productivity and reducing feed waste substantially."

Brazil Customer
"On our cattle farm in Brazil, the 9F-70 forage grinder has proven to be an excellent investment. Its high output of 5-20 tons per hour keeps up with our feeding demands, and its ability to grind tough forage like corn stover and sugarcane leaves has been remarkable. It’s reliable even in humid conditions!"

France Customer
"In France, precision and efficiency are key for our dairy farm, and the 9F-70 delivers both. The machine’s ability to produce uniform particle sizes for TMR feeding has improved our herd’s digestion and milk production. It’s easy to operate, and the robust design ensures smooth performance every single day."

Germany Customer
"The 9F-70 fits perfectly into our farming system in Germany. Its rugged construction and vibration-absorbing design keep the machine stable even during continuous use. The power of the diesel engine and the quality of the hammer system allow us to process forage quickly without compromising on quality or consistency."

Canada Customer
"Winters in Canada can be harsh, but the 9F-70 feed chopper handles silage and frozen hay without a problem. Its high-airflow design prevents clogging, and the reinforced housing ensures durability even in extreme conditions. This machine has significantly reduced our feed preparation time, giving us more time to focus on other operations."

Netherlands Customer
"The 9F-70 has transformed how we prepare forage for our dairy cattle in the Netherlands. The cylindrical feeding system, which can handle entire bales, is a huge timesaver. We’ve also used it for compost preparation, and it’s incredibly versatile. The build quality is outstanding, and maintenance is straightforward."

Russia Customer
"The 9F-70 performs exceptionally well in the challenging conditions of our Russian farm. It processes a variety of materials, including frozen straw and silage, without any issues. The adjustable screens allow us to produce the right particle size for our livestock, and the machine’s robust design handles heavy-duty use effortlessly."

India Customer
"For our dairy farm in India, the 9F-70 has been an invaluable addition. It efficiently processes green fodder, dry hay, and crop residues, providing high-quality feed for our livestock. The machine is user-friendly, and its high productivity has helped us meet the growing demands of our farm while saving costs."