1. OEM Part Number: 5D9553/5D9554/5D9558/5D9559/7D1158/7D1949/4T2242/4T2244...
2. Material: High carbon steel or boron steel with heat treatment for curved grader blade
3. Hardness: HB280~320 or HB320~360 or HB440~480
4. Thickness: 1/2’’ (13mm), 5/8’’(16mm), 3/4’’(19mm), 1’’(25mm)
5. Double Bevel Curved(DBC) Width: 6’’ (152mm), 10’’ (254mm),
Double Bevel Flat (DBF) Width:11’’ (280mm), 12’’ (305mm), 13’’(330mm), 16’’(406mm)
6. Different type: Curved grader blade, Flat grader blade, Curved Serrated blade, Flat Serrated blade
7. Available to all brand motorgrader domestic and overseas especially for Caterpillar and Komatsu.
Material Selection:
Material | Hardness (HB) | Yielding Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact Energy (J) | |
HM500 | 470-520 | ≥1250 | ≥1500 | ≥7 | 24(-20℃KV) | |
HC80 | 250-330 | ≥450 | ≥900 | ≥11 | ≥15(25℃KU) |
Jinan Higher Blades Co., Ltd offers an extensive line of all makes.We have two kinds of: Boron through-hardened and Carbon Steel.
Motor grader cutting edges mainly is double bevel curved cutting edge with Bolt-on type, and double bevel flat cutting edge with Bolt-on type, serrated and non-serrated.
Bulldozer cutting edges mainly is single bevel flat with bolt-on type.
Wheel loader cutting edges mainly is single bevel flat with bolt-on type and weld on type.
Excavator cutting edge mainly straight or serrated bolt-on edges.

We have cooperated lab with SISG and complete advanced testing facilities. SISG is the drafter of High Strength Wear esistance Steel Standards GB/T24186-2009. The laboratory can profice mill certificate with global 3rd-party certification.
- Are you a factory or trading company?
- o We are a professional manufacturer. We are one of the famous manufacturer of Ground Engaging Tools spare parts in China, our products include grader blades, cutting edges, end bits, shank ripper, bucket tooth and adapter etc. which are suitable for many kinds of construction and mining machines like Excavator, Motor grader, Bulldozer, Scraper etc.
- Can you make products with our brand?
- o Surely, we are welcome to cooperate as customized service.
- What services can you provide?
- o 1.13 months warranty, free replacement for broken ones with abnormal wear life.
- o 2. Provide technical support to our customers.
- o 3. Help you to explore your market.
- o 4. VIP treatment to our exclusive agent.
Packaging: Export plywwood pallet
Shiping: 10-15 DAYS
Whatsapp/Mob:0086 13808932932
Tel:0086 531 88687733
Mob:0086 13808932932
Fax:0086 531 88685511
Skype: higherblades03
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