XINYA supplies excavator parts including hydraulic pumps, travel motors, swing devices, control valves, engine parts and undercarriage components. Send us your machine model, OEM part number or product photo for fast matching and quotation.

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工厂
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证书和品牌
产品主图替换 (9)
IMG_3839 (1)
IMG_3838 (1)
IMG_3838 (1) (1)
工厂
物流
优势1
展会图最终
证书和品牌

NOK HB20G Breaker Hydraulic Cylinder Seal Kit

Place of Origin China/Japan
Brand Name LIRACE/NOK
Model Number HB20G
Minimum Order Quantity 1 PCS
Price Negotiable price
Packaging Details Wooden case or as required
Delivery Time 5-8 Weekdays
Payment Terms Western Union,T/T
Supply Ability 300pcs /Month
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Basic Parameters & Introduction
This seal kit fits the HB20G hydraulic breaker cylinder repair. Part number/model: HB20G. Pump numbers and hydraulic system models should be confirmed against the OEM service manual or parts catalog, as configurations may vary by batch. The kit includes piston seals, dust seals, O-rings, etc. Please verify the breaker model, cylinder bore, and required seal sizes before ordering.
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Maintenance Tips
Hydraulic breakers operate in harsh conditions. It is recommended to inspect cylinder seals every 1,000 working hours or once a year. In high-impact, dusty, or continuous breaking applications, shorten the interval to 500 hours. If cylinder oil leakage, reduced impact force, or seals that are aged, hardened, cracked, or permanently deformed are found, replace immediately. When changing the chisel or disassembling the cylinder, replace the full seal kit at the same time. Store spare seals away from direct sunlight, moisture, heat, and ozone; check elasticity before use if stored over 3 years.
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Installation Tips
Before installation, thoroughly clean the cylinder grooves and body, removing burrs, rust, and old seal residue. Confirm the seal size matches the cylinder bore. Apply a small amount of clean hydraulic oil or compatible grease; avoid dry installation. Do not over-stretch, twist, or use sharp tools that may damage the sealing surface. Use proper guide tools. After fitting, ensure the seals sit evenly in the grooves without rolling or pinching. Tighten cylinder bolts diagonally and evenly to the standard torque to prevent local overload. Before full operation, run at low speed to vent air and check for leakage.
Brand China/Japan Brand Name LIRACE/NOK
Model HB20G Product Name Breaker Hydraulic Cylinder Seal Kits
Part Number HB20G ApplicableBrand NOK
Warranty Period 6-12 months Condition NEW
Standard or Non-standard Standard Type Guarantee We will inspect the products and send detailed pictures to the buyer for confirmation.
Applicable Industries Mechanical Repair Shops, Retail, Construction, Energy, Mining Shipping Method Sea freight, Air freight, DHL/FEDEX/TNT/EMS

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What We Do

Services we Offer

service1

What if there are quality problems with the purchased products?

Please rest assured completely. We implement strict quality control throughout the whole production process. From raw material incoming inspection to finished product delivery, all items undergo multiple rounds of rigorous technical inspection and performance testing, to fully ensure every delivered product meets 100% qualified standards. All unqualified products detected during inspection will be disposed of by centralized destruction, to firmly prevent defective goods from entering the market. Meanwhile, we provide an extended warranty period of 6 to 12 months for all products. Within the warranty period, if any non-artificial quality failure occurs, please contact us promptly. Our professional technical team will respond at the earliest time and offer targeted solutions based on actual conditions. In addition, we deliver all-round technical support to safeguard your after-sales operation. Always taking customer satisfaction as the core principle, we are committed to establishing long-term and stable cooperative partnerships with global clients.
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What happens if the delivered item is unsuitable for my needs?

Please rest assured. To ensure that the products you receive fully meet your needs, we will conduct multiple rounds of demand confirmation with you before shipment, fundamentally avoiding the problem of wrong or missing delivery. To further ensure accuracy, we will first conduct precise query and verification through the product part number you provide to ensure that the product model and specifications are completely matched. If you do not have an accurate part number temporarily, we will arrange professional technicians to check and confirm one by one according to the clear product pictures and corresponding construction machinery models you provide, and communicate and synchronize with you throughout the process until confirmed correct before arranging shipment, to fully ensure that you receive the products you need and avoid unnecessary troubles.
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What professional shipping and delivery standards can we provide you?

Within our international trade operations, we prioritize a high-efficiency supply chain and a transparent logistics framework. To ensure the accuracy of every shipment, a standardized PDI (Pre-Delivery Inspection) system is strictly enforced. Before the final sealing of containers, our QC specialists conduct a thorough re-examination. We provide clients with high-resolution photos of the actual items, packaging details, and the Packing List for Visual Confirmation, ensuring 100% compliance with order specifications and delivery transparency. We support versatile Incoterms, including EXW and FOB. To meet diverse delivery timelines and cost constraints, we offer a multi-modal logistics matrix ranging from Ocean Freight and Air Freight to global couriers (DHL/FEDEX/TNT/EMS). We guarantee full professional documentation support for every shipment to ensure a safe, timely, and compliant arrival at the port of destination.
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We are a global one-stop supplier of excavator spare parts. We maintain full control over the entire process from R&D and manufacturing to sales, delivering top-quality excavator components to you.

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