9RSZ series of grass cutting machine is to cut all kinds od grass, and bears high working efficiency, that is, 4t-15t/h, and different models have different capacities. Grass cutter is able to crush grasses into filiform shape, which can improve the digestion of stomach when feeding animals.

type one: 4t/h chaff cutter

Grass Cutting Machine
Grass Cutting Machine
Chaff Cutting Machine
Chaff Cutting Machine


Structure of grass cutting

1.Discharge outlet 2. body 3. Rotor 4. Feeding and shredding device 5. Geared motor 6. Feeding slot 7. Rack 8. Protective cover 9. Rotor motor 10. Walking wheel

Technical parameter of grass cutter

Model 9RSZ-4 9RSZ-6 9RSZ-10 9RSZ-15
Power 7.5KW 15+2.2KW 22+3KW 30+5.5KW
Speed of main shaft 2860r/min 2860r/min 2860r/min 2100r/min
Capacity 4t/h 6t/h 10t/h 15t/h
Blades quantity 32PCS 40PCS 48PCS 64PCS
Width of feeding tray 240mm 300mm 500mm 800mm
Throwing distance More than 2300mm More than 2300mm More than 2300mm More than 2300mm
Dimension 2000*750*800mm 3000*900*1050mm 3600*930*1240mm 4200*1170*1250mm
Weight 300kg 980kg 1100kg 1400kg

type two: 6t/h chaff cutting machine

Grass Cutter Structure
Grass Cutter Structure

Working principle of grass cutter

1. Turn on the rotor motor.

2. Turn on automatic geared motor to drive the automatic feeding device after the operation is stable.

3. The operator evenly spreads the straw on the automatic feeding plate and the inlet gradually, and raw material goes into the drum from cutting device at a high speed.

4. Blades hit, tear, and smash them into a filament shape at this time.

5. Finally, grass is thrown out of the machine by centrifugal force.

type three 10t/h 16t/h chaff cutter

Chaff Cutter Machine
Chaff Cutter Machine

Advantage of grass cutter

  1. Cutting grass machine adopts chain automatic feeding device that is suitable for forage with long diameter, saving labor time
  2. Double-pushing roller suction and cutting device to enable the good cutting effect without any blockage, improving working
  3. Cutting grass machine is equipped with a detachable walking wheel for easy movement.


Common malfunction and related solution of grass cutter

common malfunction Reason Solution
raw material is blocked or

Overload shutdown

Put excessive grass or place them unevenly 1.take out the grass

2.reduce the amount of grass

3. Put grass into inlet evenly

Abnormal sound in the crushing part

Abnormal sound in crushing part

screw is loose  tighten the bolt
metal or stone is in the machine  stop grass cutting machine to clean the hard objects

Stop machine to clean the hard object

 spare parts fall off or have been damaged Stop machine to check machine and replace spare parts
Cotter is broken and hammer is moving Change the cotter
violent shake  of machine


 The hammer is installed incorrectly Reinstall according to the arrangement
The weight deviation of the two sets of hammers is excessive weight deviation of the two sets of hammers does not exceed 5g.
Individual hammers are not locked making the hammers flexible
some rotors are unbalanced or worn out  Balance other spare parts or replace


Spindle has been bent Straightening spindle or replacing


Bearing is damaged  Replace the bearing
anchor bolts tighten anchor bolts


The split pin is damaged and the hammer is axially moved  Replace the split pin.



Machine is inflexible

 Rotating parts entangled grass stop grass cuttin to clean
Bearing  is damaged  Replace the bearing


 Lack of lubricating oil Add  lubricating oil on time
Outlet is blocked V-belt is damaged or loosed replace or tension the V-belt


 crushing part is blocked remove the impurity

Bad crushing effect

 hammer and crushing device are damaged Replace hammer and crushing device
Low spindle speed Properly adjust the tension of the V-belt
 Bearing is overheating bearing is damage replace bearing
Too much or too little lubricating oil add proper lubricating oil
V belt is too tight Properly adjust the tension of the V-belt

Adjust V-belt to a proper tension

Spindle is bending or rotor is imbalance Straighten or replace the spindle, balance the rotor
 Long-term overload work  Reduce  the amount of grass
V-belt is overheating Improper tightness of the V-belt Properly adjust the tension of V-belt
The belt pulley groove is worn or the surface is rough  Check and change belt pulley
The main pulley and the power pulley axis are not parallel, and the belt groove is not aligned.


The main pulley and the power pulley axis are parallel, and the belt groove is aligned.
Grass Cutting Machine Application
Grass Cutting Machine Application

List of major parts and consumable parts of grass cutter

Number Name Function Quality Assurance Period
1 bearing Tension chain wheel 3 month
2 bearing conveyor
3 bearing  upper roller
4 bearing Under roller
5 bearing spindle
6 roller chain inlet
7 conveyor roller chain inlet
8 V-belt rotor 1 month
9 V-belt Inlet
10 reverse switch inlet 3 month
11 electrical cabinet     electrical control


12 hammer 1 week
13  hammer shaft 1 month
14 Cutting part
15 sliding sleeve of upper roller

FAQ of grass cutter

  1. What should I do if there is blocking?

The reverse switch can be pulled to “stop”, then pulled to the “reverse”.It is strictly forbidden to remove the blocked straw by hand without stopping the machine.

  1. How to increase the gap of the roller?

First, loosen the center screw on the upper platen of the machine, adjust the sliding plate and sliding block clockwise.

Second, adjust the bolt on both sides counterclockwise to the appropriate position. The gap between the two rollers should be Horizontally the same, and the upper and down roller is flexible.

Finally, tighten the bolt on the center screw.

Adverse action will decrease the gap.