Model NO.: 28*8mm
Color: Customizable
Hole: Customizable
Logo: Customizable
Hardness: 38-43HRC / 43-48HRC
Trademark: Hongri
Transport Package: Pallet
Specification: 28 inches
Origin: China
HS Code: 84329000
Material: 65Mn, Boron steel
Hardness: HRC 38-45, HRC 43-48
Thickness: 3.0-12.5 mm
Size/Dimension: 12"-44" (300mm-1120mm)
Edge of Disc Blade: Round or Notched
Shape: Flat, Concave or Wavy
MOQ: 100 pcs
Production Capacity: 7 million pcs annually
Surface Treatment: Painting
Colors: Blue or black (matte or glossy), customizable
Hole Type: Square, Round, Hexagon, Clover Leaf, Optional
Hole Size: 27x27mm, 42x42mm, optional
Working Depth: 200mm, 300mm
Working Width: 3.4m ~ 6.2m
Packing: Non-fumigation wooden case, metal case according to regional policy
Feature/Characteristic: High wear resistance due to special edge making process

Disc blades are suitable for disc harrows and agricultural machinery. Typically made from 65Mn spring steel and 40MnB steel. The standard hardness of 65Mn is 38-45HRC, while 40MnB is 43-48HRC. We can produce a wide range of disc blades with a maximum diameter of 46 inches (1170mm).
Common Specifications of Disc
Dia. Concavity Thickness
mm inch mm mm
255 10 12 3
305 12 19 3
330 13 25 3
355 14 38 3
410 15 38~50 3
430 17 57 3,4
460 18 38~60 3,4
480 19 57 3,4
510 20 44~63 3,4,5
535 21 63 3,4,5
560 22 60~85 4,5,6
585 23 75~90 4,5.6
610 24 75~95 4,5,6
660 26 86~115 5,6,7,8
710 28 100~130 5,6,7,8
760 30 120~135 6,7,8,10,12
810 32 120~140 8,10,12
910 36 120-200 8,10,12
960 38 120-200 8,10,12

Harrow Disc Blade Plough Disc Blade of Agricultural Machinery for Farm/Sale
Harrow Disc Blade Plough Disc Blade of Agricultural Machinery for Farm/Sale
Harrow Disc Blade Plough Disc Blade of Agricultural Machinery for Farm/Sale

Our Company:


HongRi Machinery Co., Ltd (HRC) is located in Shiliwang Industrial Park, established in 2006, adjacent to the 101 National Highway, just 10 km from the Beijing-Shanghai High Speed Road, offering convenient transportation. The company covers an area of 32,000 square meters, with a construction area of 15,000 square meters.

With over 20 years of experience in agricultural machinery, including disc harrows, disc plows, and disc blades, we specialize in developing and producing high-quality farming equipment. Our products include tillage machines, planting machines, harvesting machines, disc harrows, disc plows, mowers, rotary tillers, deep plowing machines, and their spare parts such as disc blades, bale spears, sweepers, and castings.

Our products are widely sold throughout China and exported to Europe, Africa, the Middle East, and Southeast Asia. Our business integrity and product quality have been recognized, and we have maintained a Level A payment rating and a Level AA bank credit rating. The government has also supported our company, awarding us multiple honors.

We take pride in our reliable quality, attentive after-sales service, and excellent technical support. We welcome your inquiries, consultations, and investigations. Our commitment to honesty and mutual benefit helps us build the Hong Ri brand to serve you better.

Have a great day! Thank you.
If you have any questions, feel free to contact me.


Harrow Disc Blade Plough Disc Blade of Agricultural Machinery for Farm/Sale
Our reliable quality, considerate after-service, and excellent technology welcome your inquiry, consultation, and investigation. The company abides by the principle of honesty, striving for win-win outcomes, and building the Hong Ri brand to serve you.

PVC Pipe

Plastic Pvc Pipe Fittings,Pvc Plastic Water Pipe,Plastic Pipe Tube,Plastic Rounded Tube

Dandong Jinggong Heat Preservation Appliance Factory , https://www.jgplastic.com