Heavy-Duty Bulldozer Drive Segments (Segment Groups)
Technical Specifications
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Material: Forged 35MnB or Cast 30MnCrNi2 (depending on duty cycle)
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Heat Treatment: Full quenching and tempering + Tooth profile induction hardening
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Surface Hardness: HRC 52-58
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Hardness Depth: 10-15mm (ensures core toughness while maintaining outer wear resistance)
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Manufacturing Standard: Meets or exceeds OEM specifications
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Bolt Holes: Precision drilled to match OEM hub patterns for seamless installation
Product Features
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Accurate Tooth Profile: Optimized tooth geometry reduces friction between the segment and the track bushings, extending the life of the entire undercarriage.
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Impact Resistance: Heat-treated core prevents tooth breakage or cracking even in rocky or frozen ground conditions.
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Easy Installation: Bolt-on design allows for quick on-site replacement without removing the track chain or sprocket hub.
| Model |
weight/KG |
Model |
weight/KG |
| BD2F（25T ø431.5） |
13 |
segmentD3K | 6T6.2KG/5T5.2KG |
| BD2G（27T ø478） |
18 |
segmentD3C |
4.3 |
| D3C 25T ø490 |
23.5 |
segment D4H |
5.8 |
| D4D （29T） |
40 |
segment D5H | 4T5.6KG/5T6.8KG |
| D4D（21T16H ø350） |
34 |
segment D5G | |
| D20（25T） |
20 |
segmentD5C/D5B/D5 |
5.6 |
| D20-5 |
32 |
segmentD6H/D6R |
12 |
| D31-18（25T16H ø225） |
47 |
segmentD6C/D6D |
11 |
| D31-18（25T16H ø225） |
36 |
segmentD6M | |
| D31 |
49 |
segmentD7G/D7R |
14 |
| D31-15（25T ø498） |
20 |
segment D8N/D8R |
13.5 |
| D50-15（27T ） |
48 |
segment D9N |
24.5 |
| D60-16（27T ø630 ） |
61 |
segment D50A-17 |
6 |
|
|
segment D65/D65EX-12 |
7.7 |
|
| farm machinery D4D |
|
segmentD68EX |
13.5 |
| D4D(19T8Hø220) |
30 |
segmentD85A-18 |
3T8.8/2T5.7 |
| D4D(23T8Hø140) |
44 |
segmentD85A-21 |
14.7 |
| D4D(21T8Hø220) |
34 |
segmentD155AX-3 |
11.8 |
| D4D(25T8Hø140) |
54 |
segmentD275 |
27.6 |
| D4D(25T8Hø220) |
53 |
segmentD355 |
16.8 |
| segmentD6K |
5T12.2/4T9.4 |
||
| BD2G 25T |
46.5 |
segmentD6K |
5T11.4/4T9.2 |
| BD2G 27T |
57 |
segment D9R |
24.5 |
Quality Control
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Dimension Check: Every segment is measured for bolt hole alignment and tooth pitch accuracy.
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Hardness Testing: Conducted on multiple points of the tooth surface and root.
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Metallographic Analysis: Verification of grain structure after heat treatment to ensure long-term durability.
