
Hitachi ZX33U-5 Mini Excavator Track Roller Manufacturer 4719574
- Product Quality Guaranteed
- Large Supply
- Competitive Pricing
- Most Makes & Models
- Helpful Customer Service Team
- Professional Tech Support
GFM Factory:
15 Years Experience
Service:
OEM/ODM
Product Type:
Excavator/Bulldozer Parts
Lead Time:
30 Days
MOQ:
1 PC
Color:
Yellow, Black or Customized
The Hitachi ZX33U-5 is built for compact versatility, but heavy operating conditions place intense friction on undercarriage components. According to construction equipment maintenance benchmarks, over 50% of machine downtime originates from undercarriage failure. As an experienced track roller manufacturer, GFM engineers high-performance aftermarket solutions designed to endure severe impact and minimize costly operational delays.
GFM provides high-precision mini excavator track roller replacements tailored specifically for the Hitachi ZX33U-5 model. Our custom OEM and ODM manufacturing capabilities ensure every roller strictly matches exact original mounting specs, weight balance parameters, and stress distribution points. Whether operating in dense mud, abrasive gravel, or rocky demolition sites, GFM undercarriage parts maintain structural integrity.
Premium Materials and Advanced Manufacturing
To achieve exceptional structural strength, GFM selects premium high-strength alloy steel (such as 40Mn2 and 50Mn) for all heavy-duty components. Every mini excavator track roller undergoes precision forging or specialized casting, followed by automated CNC machining to guarantee sub-millimeter tolerances across deep bore surfaces and mounting brackets.
Our deep induction heat treatment technology creates a outer hardened shell while retaining a tough, resilient inner core. GFM track rollers incorporate dual-cone heavy-duty floating seals and precision ground steel shafts, preventing lubricant leakage and isolating external abrasive dust.
| Technical Specification | Standard Market Aftermarket | GFM Heavy-Duty Custom Roller |
| Material Grade | Carbon Steel / Standard Alloy | Premium High-Strength 40Mn2 / 50Mn Steel |
| Heat Treatment Hardness | HRC 48–52 | HRC 52–58 Surface Hardness |
| Hardened Layer Depth | 3mm – 5mm | 8mm – 12mm Deep Case Hardness |
| Sealing System | Standard Rubber O-Ring | Dual-Cone Floating Seal (NBR / Silicone) |
| Lifespan Expectancy | ~1,200 Operating Hours | Exceeds 2,000 Operating Hours |
Product Description
- MOQ: 1 PC
- Payment Method: T/T
- Brand: GFM
- Condition: New
- Color: Yellow, Black or Customized
- Lead Time: 30 days
- Warranty: 1 Year
- Service: OEM or ODM
- Place of Origin: Fujian, China
- Application: Bulldozer
- Packing: Standard Export Wooden Pallet
Features
- Premium Materials: Made with high-quality, wear-resistant steel to ensure a longer lifespan and consistent performance.
- Sealed and Lubricated: Designed with a sealed system that keeps the rollers lubricated, reduces friction, and prevents dirt or water from entering.
- Smooth and Stable Operation: Precision-engineered for balanced movement, improving the efficiency of your machinery.
- Fits Various Models: Offered in single-flange, double-flange, and center-flange designs to suit a wide range of excavators and bulldozers.
- Proven Toughness: Tested to handle heavy loads and operate effectively in rough environments, ensuring minimal downtime.
At GFM Factory, we are committed to delivering high-quality components that enhance the efficiency and longevity of your equipment. Our track rollers are designed to keep your machinery operating at peak performance, reducing downtime and maintenance costs.
For more information or to inquire about specific models, please contact us. GFM Factory – Your Reliable Parts Source!
Specifications

Product Models

Production Process

Packaging and Shipping

Factory Advantages
Established in 2011, GFM operates as an authoritative track roller manufacturer and complete undercarriage solution provider with over 15 years of industry experience. Our modern manufacturing facility features multi-axis automated forging presses, heat treatment lines, and automated robotic assembly units capable of handling high-volume wholesale orders and custom fabrication projects.
GFM maintains a complete in-house quality inspection laboratory equipped with optical emission spectrometers, magnetic particle flaw detectors, and mechanical fatigue testing rigs. Every batch undergoes strict dimensional, torque, and pressure checks to ensure every mini excavator track roller meets or exceeds international standard specifications.
GFM delivers an extensive catalogue of matching parts, including carrier rollers, idlers, sprockets, track shoes, track chains, buckets, bucket teeth, pins, and bushings. We provide seamless replacement compatibility for all major global equipment brands, including Komatsu, Hitachi, Caterpillar, Volvo, Kobelco, Doosan, Hyundai, Kubota, Bobcat, Yanmar, Sany, XCMG, and Shantui.

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Quanzhou Ganfeng Machinery (GFM Parts) Co., Ltd, founded in 2011, is an experienced manufacturer that specializes in excavators and bulldozers’ spare parts, such as undercarriage parts (track rollers, carrier rollers, idlers, sprockets, track shoes, track chains, track groups), bolts, nuts, pins, bushings and more. We cover and stock a wide range of parts applicable to most makes and models available in the market.The compatible brands include Komatsu, Hitachi, Carter, Volvo, Kobelco, Daewoo, Doosan, Hyundai, Kato, Sumitomo, Yuchai, Takeuchi, Sanhe Intelligent, Mitsubishi, Lonking, Liugong, XCMG, etc., covering the mainstream brands on the market.
FAQ
We are an experienced manufacturer. Our factory is located in Xiamei Town, Quanzhou City. Your visit is very welcome.
Please provide us the correct machine model, part number, or some specifications. If they are not standard items, please offer the drawings.
We usually accept T/T; other terms can be negotiated.
Of course, you can. We provide OEM service. If you have samples or drawings along with a mass quantity request, we can customize the goods and offer professional tech support.
GFM has established a complete quality, environmental, and security control system. Every part undergoes rigorous testing and quality control measures before distribution. Our factory adheres to strict safety standards and environmental regulations in the manufacturing processes.
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