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How Should Bulldozer Blades Be Painted ?

Views: 90     Author: YASSIAN-Envy     Publish Time: 2025-10-16      Origin: Site



I. Key considerations for selecting paint for bulldozer blade cutting edges.


1. Understand substrate properties.

Common materials used for blade cutting edges include carbon steel, boron steel (30MnB) and galvanised steel. Different materials have different requirements in terms of primer adhesion and corrosion resistance.

For galvanised steel plates, use a high-adhesion epoxy primer (e.g. ED1000). This primer is compatible with metals such as stainless steel and aluminium alloys, and has salt spray resistance of at least 1000 hours.


2. Select paint based on operating environment:

For humid, salt spray or coastal areas: Select water-resistant and salt spray-resistant epoxy/polyurethane systems. Apply a zinc-rich epoxy primer, followed by a salt spray-resistant polyurethane or fluorocarbon topcoat.

For high temperatures or intense sunlight: Choose a heat-resistant polyurethane or fluorocarbon topcoat to maintain hardness above 80°C.

High-abrasion conditions: Apply an abrasion-resistant intermediate coat (e.g. epoxy or polyester) over the primer before applying the topcoat to enhance impact and scratch resistance.


3. Coating system (layers and thickness)

The traditional three-layer system (primer + intermediate coat + topcoat) remains predominant due to its well-established process and ease of application.

Film thickness requirements: The total coating thickness generally ranges between 80 and 120 µm, with the primer at approximately 30–40 µm and the topcoat at 40–60 µm. Multiple spray applications may be employed as necessary.


4. Surface preparation:

First, automatic shot blasting or shot peening is performed for rust removal, followed by manual cleaning to ensure the roughness of the substrate surface (Ra≈50–80 µm) meets the requirements for primer adhesion.

Thorough degreasing and dust removal must be completed before spraying to prevent blistering or peeling.

cuttingedge


II. What should be noted when spray painting cutting blades?


1. Surface preparation quality: Rust removal, degreasing and sandblasting must be completed in one process. Any residue will cause the primer to peel.

2. Spraying environment: The temperature should be between 15 and 30°C and the relative humidity should be ≤70% to prevent bubbling and sagging.

3. Curing temperature/time per coat: Primer: 80–100°C for approximately 10 minutes; Intermediate Coat: 120°C for approximately 15 minutes; Topcoat: 150°C for approximately 20 minutes.

4. Thickness control: Use a dry film thickness gauge for real-time monitoring to ensure the overall thickness remains within 80–120 µm.

5. Quality inspection: Salt spray (1000 hours) + adhesion (cross-cut test) + visual inspection. Products must pass this inspection before being released from the warehouse.

BULLDOZER BLADES



III. Can YASSIAN cutting edges be customised with logo? What are the requirements?


Unless otherwise requested, the factory applies the YASSIAN trademark or leaves the surface unmarked. To arrange production of a customised logo, a minimum order quantity must be met and a clear image of the logo must be provided.



IV. How are logos applied to YASSIAN cutting edges?

Logo can be customised using labels, stamps, QR codes, screen printing or laser engraving. Costs vary based on production method. We tailor trademarks according to customer specifications.


OEM Part No. Description Material Unit weight(kg)
5D9553/7T1633 DBF Grader Blades C80 Carbon Steel/30MnB 29.00
5D9554/7T1645 DBF Grader Blades C80 Carbon Steel/30MnB 34.00
5D9558/7T1634 DBF Grader Blades C80 Carbon Steel/30MnB 50.00
5D9559/7T1623 DBF Grader Blades C80 Carbon Steel/30MnB 59.00
5D9561/7T1643 DBF Grader Blades C80 Carbon Steel/30MnB 49.00
5D9562/7T1636 DBF Grader Blades C80 Carbon Steel/30MnB 42.00
7D4508/7T1640 DBF Grader Blades C80 Carbon Steel/30MnB 25.00
7D1577/7T1625 DBF Grader Blades C80 Carbon Steel/30MnB 59.00
7D1949/7T1627 DBF Grader Blades C80 Carbon Steel/30MnB 67.00
7D1158/7T1624 DBF Grader Blades C80 Carbon Steel/30MnB 49.00
5D9557/7T1644 DBF Grader Blades C80 Carbon Steel/30MnB 42.00
5D9556/7T1635 DBF Grader Blades C80 Carbon Steel/30MnB 35.50
4T2244 DBF Grader Blades C80 Carbon Steel/30MnB 68.00
4T2242 DBF Grader Blades C80 Carbon Steel/30MnB 79.00
4T2233 DBF Grader Blades C80 Carbon Steel/30MnB 79.00
4T2231 DBF Grader Blades C80 Carbon Steel/30MnB 68.00
8E5529 Grader End Bit 16Mn(Q345B)/30MnB 7.50
8E5530 Grader End Bit 16Mn(Q345B)/30MnB 9.50
8E5531 Grader End Bit 16Mn(Q345B)/30MnB 7.50
7D9999 Grader End Bit 16Mn(Q345B)/30MnB 12.80
6D1904 Grader End Bit 16Mn(Q345B)/30MnB 9.60
9W1767 Grader End Bit 16Mn(Q345B)/30MnB 9.40
175-71-11242 DBF Cutting Edges |> 16Mn(Q345B)/30MnB 69.80
175-71-22271 Dozer End Bits 16Mn(Q345B)/30MnB 42.10
175-71-22281 Dozer End Bits 16Mn(Q345B)/30MnB 42.10
154-70-11314 DBF  Cutting Edges || 16Mn(Q345B)/30MnB 54.50
150-70-21346 Dozer End Bits 16Mn(Q345B)/30MnB 25.00
150-70-21356 Dozer End Bits 16Mn(Q345B)/30MnB 25.00
175-70-21115 DBF Cutting Edges  16Mn(Q345B)/30MnB 65.40
175-70-26310 DBF Cutting Edges  16Mn(Q345B)/30MnB 49.40
175-71-22272 Dozer End Bits 16Mn(Q345B)/30MnB 39.60
175-71-22282 Dozer End Bits 16Mn(Q345B)/30MnB 39.60
195-71-11173 Dozer End Bits 16Mn(Q345B)/30MnB 62.60
195-71-11183 Dozer End Bits 16Mn(Q345B)/30MnB 62.60
195-71-11654 DBF Cutting Edges  16Mn(Q345B)/30MnB 77.50
175-70-21136 Dozer End Bits 16Mn(Q345B)/30MnB 32.20
175-70-21126 Dozer End Bits 16Mn(Q345B)/30MnB 32.20
144-70-11131 DBF  Cutting Edges  16Mn(Q345B)/30MnB 45.40
154-81-11191 DBF  Cutting Edges  16Mn(Q345B)/30MnB 39.50
144-920-1120 DBF  Cutting Edges  16Mn(Q345B)/30MnB 40.00
140-70-11170 Dozer End Bits 16Mn(Q345B)/30MnB 14.70
140-70-11180 Dozer End Bits 16Mn(Q345B)/30MnB 14.70
17M-71-21550 DBF  Cutting Edges  16Mn(Q345B)/30MnB 79.30
17M-71-21940 Dozer End Bit 16Mn(Q345B)/30MnB 67.00
17M-71-21930 Dozer End Bit 16Mn(Q345B)/30MnB 67.00
198-71-11181 DBF  Cutting Edges  16Mn(Q345B)/30MnB 143.00
198-72-11181 DBF Cutting Edges  16Mn(Q345B)/30MnB 101.00
195-71-61940 Dozer End Bit 16Mn(Q345B)/30MnB 111.00
195-71-61930 Dozer End Bit 16Mn(Q345B)/30MnB 111.00
195-71-61550 DBF  Cutting Edges  16Mn(Q345B)/30MnB 105.60
7T9125 DBF  Cutting Edges  16Mn(Q345B)/30MnB 67.00
6Y5540 DBF  Cutting Edges  16Mn(Q345B)/30MnB 57.00
4T3009 DBF  Cutting Edges  16Mn(Q345B)/30MnB 42.50
4T8940 DBF  Cutting Edges  16Mn(Q345B)/30MnB 27.60
4T6381 DBF  Cutting Edges  16Mn(Q345B)/30MnB 97.70
7T5702 DBF  Cutting Edges  16Mn(Q345B)/30MnB 152.90
4T6659 DBF  Cutting Edges  16Mn(Q345B)/30MnB 30.40
4T2988 DBF  Cutting Edges  16Mn(Q345B)/30MnB 47.00
4T2989 DBF  Cutting Edges  16Mn(Q345B)/30MnB 50.10
4T3013 DBF  Cutting Edges  16Mn(Q345B)/30MnB 28.30
4T2948 DBF  Cutting Edges  16Mn(Q345B)/30MnB 37.20
4T3010 DBF  Cutting Edges  16Mn(Q345B)/30MnB 18.30
9W1878 DBF  Cutting Edges  16Mn(Q345B)/30MnB 43.00
9W1875 Dozer End Bit 16Mn(Q345B)/30MnB 25.60
9W1876 Dozer End Bit 16Mn(Q345B)/30MnB 25.60
9W8874 Dozer End Bit 16Mn(Q345B)/30MnB 20.00
9W8875 Dozer End Bit 16Mn(Q345B)/30MnB 20.00
8E4194 Dozer End Bit 16Mn(Q345B)/30MnB 57.60
8E4193 Dozer End Bit 16Mn(Q345B)/30MnB 57.60
8E4196 Dozer End Bit 16Mn(Q345B)/30MnB 70.00
8E4197 Dozer End Bit 16Mn(Q345B)/30MnB 70.00
8E4198 Dozer End Bit 16Mn(Q345B)/30MnB 116.00
8E4199 Dozer End Bit 16Mn(Q345B)/30MnB 116.00
4J8843 Dozer End Bit 16Mn(Q345B)/30MnB 27.00
4J8844 Dozer End Bit 16Mn(Q345B)/30MnB 27.00
3G8319 Dozer End Bits 16Mn(Q345B)/30MnB 16.80
3G8320 Dozer End Bits 16Mn(Q345B)/30MnB 16.80
100-6666 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 21.30
1U0601 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 91.60
4T6695 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 13.60
1U1909 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 94.90
100-6668 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 104.60
3G6395 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 24.60
1U0295 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 53.40
107-3746 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 62.00
107-3381 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 93.70
1U0593 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 99.50
9W5737 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 40.10
8E4567 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 57.80
109-9212 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 154.00
9W5730 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 40.10
139-9230 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 97.00
9W8215 DBF Wear Plate Edge  16Mn(Q345B)/30MnB 32.00
4T8101 Corner Guard Bit  16Mn(Q345B)/30MnB 18.60
4T8091 Corner Guard Bit  16Mn(Q345B)/30MnB 9.80
4T6380 Scraper Cutting Edge 16Mn(Q345B)/30MnB 54.50
8K8161 SBF Bucket Edge 16Mn(Q345B)/30MnB 110.50
8K8162 SBF Bucket Edge 16Mn(Q345B)/30MnB 118.20
7V1490 SBF Bucket Edge 16Mn(Q345B)/30MnB 271.00
7V0904 SBF Bucket Edge 16Mn(Q345B)/30MnB 167.00
Total
DBF:  Double Bevel Flat


SBF:  Single Bevel Flat






C80 Carbon Steel hardness HB280-320 without heattreatment Normal material
16Mn(Q345B) steel hardness HB320-360 with heattreatment Normal material
30MnB steel hardness HB440-480 with heattreatment Better material



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