As a contract-abiding and credit-abiding enterprise, honesty is the core value of our enterprise. We continuously develop and research new production technology to fulfil market demand and meet customers' different requirements for the Excavator Track Shoe, Carrier Roller, Crawler Crane Upper Roller. We are advancing at full speed towards a quality and efficiency enterprise, showing our strong strength at all times. Our good corporate culture established in the past management practice will gradually give play to its advantages in the market competition.

Product Description

Bulldozer Upper Carrier Roller is made of 50Mn. It has many types and large quantities, which can support the weight of conveyor belts and materials. It is adopting through hardening system and spraying quenching system while complying with the stringent ISO System. And it has extremely high wear resistance and extremely low friction coefficient. Our Bulldozer Upper Carrier Roller is really a good choice for you.

Machining Process: Forging — Rough Turning — Heat Treatment — Finish Turning — Assembly — Spraying Paint

Heat Treatment Technical Data

• Surface quenching HRC 48-53

• Face hardening depth 5-8mm

• Corner hardening depth more than 1.5mm

Chemical Analysis

	C	Si	Mn	P	S	Mo
Spec.	0.48～0.56	0.17～0.37	0.70～1.00	≤0.04	≤0.04
Actual	0.49	0.14	0.88	0.016	0.023

We are using advance machining centre, horizontal and vertical CNC machining to execute processes such as machining, drilling, threading and milling to ensure the quality and precision of Bulldozer Upper Carrier Roller to ensure the accuracy of assembly dimensions. This is to maximize the life span of each component and minimize production cost per hour.

Application

The top roller fit with below bulldozer models:

KOMATSU	CATERPILLAR	JOHN DEERE	DRESSER
D20	D3B/D3C/D3G/D3K	JD450G	TD15M
D30	D4B/D4C/D4D/D4E	JD450J	TD20G
D37E/D39EX-21	D5/D5B/D5C/D5G/D5H	JD650J	TD25
D41A-6	D5M/D5N	JD750J
D50	D6C/D6D/D6R/D6H/D6M	JD850J
D60	D7G/D7H/D7R
D61	D8R/D8T/D8K
D85ESS-2	D9L/D9N/D9R
D80/85	D10/D10L/D10N
D155	D11/D11N/D11R
D275
D355
D375
D475

For more parts not included as the above, please send us your inquiry with specific needs!

PACKING: Strong Fumigate Wooden Pallet

PAYMENT: By 100% T/T. 30% T/T as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.

DELIVERY TIME: Generally, if we have stock, it will take about 7-day delivery time. Or it will take about 20 to 60 days after receiving your advance payment. The specific delivery time depends on the items and quantity of your order.

Our Cat Bulldozer D4e D4d D4c D4h Top Roller Carrier Roller Upper Rollers with OEM 6K9880 because of its superior quality and advanced technology to achieve the best-selling domestic and foreign markets. We hope that with our unremitting efforts, we can become the cutting edge of the industry in the near future and provide customers with more efficient and high-quality products and sincere and perfect services. So make sure you get in touch with us by sending us emails or contact us if you have any concerns about our firm.

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