Guangzhou Zhipan Sealing Technology Co.,Ltd.
                                                                                                           
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20 Years
Since 2006
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NBR90 Silicone Rubber O-Ring Seal Box Kit for Komatsu & Hitachi Excavators - Temperature Range -35°C to +120°C

Price Negotiable
Price: Negotiable price
MOQ: 10 Boxes
Delivery Time: 5-8 work days
Brand: ZHIPAN
Product Description
NBR90 Silicone Rubber O-Ring Seal Box Kit
High-quality NBR90 O-ring seal box kit specifically designed for excavator applications, compatible with Komatsu and Hitachi equipment models.
Product Overview
Material Composition
Nitrile-butadiene rubber (NBR) is a synthetic polymer created through copolymerization of acrylonitrile (18-50%) and 1,3-butadiene. Higher acrylonitrile content enhances petroleum and hydrocarbon fuel resistance while reducing low-temperature flexibility.
Primary Applications
  • Industrial seals and O-rings
  • Gaskets and sealing components
  • Pipe and cable protective covers
  • Excavator hydraulic system seals
Technical Specifications
Property Specification
Material Type NBR90 Nitrile Rubber
Temperature Range -35°C to +120°C (-30°F to +250°F)
Acrylonitrile Content 18-50% (variable by application)
Compatibility Komatsu, Hitachi Excavators
Performance Advantages
  • Excellent resistance to oils, fats, and hydrocarbons
  • Superior mechanical strength and wear resistance
  • Good heat resistance up to 120°C
  • High elasticity and compression recovery
  • Effective against diluted acids
Limitations & Handling
  • Limited weather and ozone resistance
  • Not suitable for aromatic compounds or halogenated hydrocarbons
  • Avoid exposure to ketone brake fluids and strong acids
  • Store away from direct sunlight to prevent degradation
Product Images
NBR90 O-Ring Seal Box Kit for Komatsu and Hitachi Excavators - Product View 1 NBR90 O-Ring Seal Box Kit for Komatsu and Hitachi Excavators - Product View 2
Frequently Asked Questions
What is your lead time?
Lead time depends on order quantity and season. Small quantities typically ship within 3-10 days, while larger orders require 7-30 days for fulfillment.
How do you guarantee quality?
We conduct pre-production sampling before mass production and perform final inspection before shipment to ensure consistent quality standards.
Can I order samples?
Yes, sample orders are available. Please contact us for sample pricing and availability.
What packaging options are available?
Standard export boxes or cartons are used for packaging. Custom packaging is available upon request to meet specific requirements.
What services do you provide?
We accept FOB and EXW delivery terms, multiple currencies (USD, EUR, CNY), and various payment methods including T/T, L/C, MoneyGram, Western Union, and Cash. Support available in English and Chinese.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guangzhou Zhipan Sealing Technology Co.,Ltd.
Location Room 302, Building 1, No. 418, Shatai South Road, Tianhe District, Guangzhou-C0558
Contact Person Eason

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