Harrow Disc Blade Plough Disc of Agricultural Machinery for Farm

Model NO.: 20′′*3.5mm
Color: Customizable
Hole: Customizable
Logo: Customizable
Hardness: 38-43HRC / 43-48HRC
Trademark: Hongri
Transport Package: Pallet
Specification: 20-inch
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), custom options available
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 policies
Feature/Characteristic: Long-lasting wear due to special edge-making process

Disc blades are ideal for disc harrows and agricultural machinery. The standard materials used are 65Mn spring steel and 40MnB steel. Typically, the hardness of 65Mn spring steel is between 38-45HRC, while 40MnB steel has a hardness of 43-48HRC. We can produce various types of disc blades, with a maximum diameter of up to 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 of Agricultural Machinery for Farm
Harrow Disc Blade Plough Disc of Agricultural Machinery for Farm
Harrow Disc Blade Plough Disc of Agricultural Machinery for Farm

Our Company:


HongRi Machinery Co., Ltd (HRC) is located in Shiliwang Industrial Park, established in 2006, adjacent to the 101 National Highway. It is only 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.

For over 20 years, HongRi has been specializing in agricultural machinery, including disc harrows, disc plows, and disc blade soil shovels. Our main products include tillage, planting, and harvesting machinery, as well as disc harrows, disc plows, mowers, rotary tillers, and deep plowing machines. Spare parts such as disc blades, bale spears, sweepers, and castings are also produced.

We offer a complete range of specifications, ensuring reliable quality and excellent performance. Products are sold nationwide and exported to Europe, Africa, the Middle East, and Southeast Asia.

Our business integrity and quality have been widely recognized. Over the years, we have maintained an A-level payment rating and an AA-level bank credit rating. The government has supported our operations and awarded us multiple honors.


Harrow Disc Blade Plough Disc of Agricultural Machinery for Farm
Our reliable quality, considerate after-sales service, and advanced technology welcome your inquiries, consultations, and visits. We abide by the principle of honesty, aiming for mutual benefits and building the Hong Ri brand to serve you better.

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

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