What kind of copper bushings does Ponsse excavators use?
2026-02-25
Ponsse is a globally renowned manufacturer of forestry machinery, specializing in harvesters and forwarders. Due to the extremely harsh working environment of forestry machinery (high vibration, shock loads, all-weather outdoor operation), the requirements for bushings are very high.
Ponsse's original factory typically uses high-strength, high-wear-resistant specialized copper alloy bushings. Below is an analysis of the common types of copper bushings used in Ponsse "excavators" (actually harvesters/grapple machines), their materials, and application areas:
I. Core Material: Aluminum Bronze
Nordic forestry machinery brands like Ponsse most commonly use Aluminum Bronze.
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Material Property
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Description
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International Grade
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C95400 / C95500 (ASTM)
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Equivalent Chinese Grade
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ZCuAl10Fe3 / ZCuAl9Fe4Ni4Mn2
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Main Components
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Copper (Cu) + Aluminum (Al) approx. 9-11% + Iron (Fe) approx. 3-5%
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Core Advantages
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Extremely high strength (twice that of tin bronze), impact resistant, wear-resistant, and offers good self-lubricating properties when lubrication is poor.
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II. Main Application Areas on Ponsse Equipment
Ponsse equipment relies on copper bushings at various joints and pin connections, mainly concentrated in the following heavy-load areas:
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Application Area
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Specific Location
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Load Characteristics
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Recommended Material
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Working Attachment
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Connection points between boom and stick; bucket/grapple rotation mechanism
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Heavy load, impact, rotation
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Aluminum Bronze (C95400)
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Hydraulic System
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Rod eye ends of cylinders
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Reciprocating oscillation, high pressure
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High-Strength Aluminum Bronze
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Undercarriage System
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Track rollers, idlers
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Heavy load, wear, muddy/watery environment
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Aluminum Bronze or Tin Bronze (C93200)
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Grapple/Harvester Head
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Grapple finger pivot shafts; saw unit oscillation mounts
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Extreme impact, frequent rotation
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Special Nickel-Aluminum Bronze (C95500)
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III. Ponsse Original Part Numbers vs. Replacements
Ponsse has its own part numbering system. If you need a replacement, there are two main paths:
1. Original Procurement
Method: Provide your specific equipment model (e.g., Ergo, Buffalo, Beaver, Scorpion etc.) and the part number from your machine's diagram, or the old part itself, to an authorized Ponsse dealer.
Advantages: Guarantees a perfect match, with material meeting the original design standards.
2. Professional Brand Replacement
For wear parts, many specialized construction machinery component brands (e.g., Tsubaki, FB Chain, Caterpillar (for some universal parts)) or specialized bushing manufacturers can provide replacements that meet or exceed original standards. When requesting a quote, you will need to provide:
Inner Diameter
Outer Diameter
Length
Whether it has oil grooves/oil holes
Application location (e.g., For Ponsse Buffalo Boom)
IV. Procurement Recommendations for You
Confirm Equipment Model: Identify which Ponsse model you have (e.g., Ponsse Scorpion or Ponsse Beaver).
Find the Part Number: Locate the original Ponsse part number for the required bushing in your equipment's parts manual (e.g., it might be in a format like 0190215 or 1560700).
Provide Critical Dimensions: If you cannot find the part number, accurately measure the Inner Diameter, Outer Diameter, and Length of the old bushing using calipers.
Determine Material: For heavy-load areas, aluminum bronze is the first choice; for areas where shaft protection is a priority, tin bronze may be selected.
Summary: The copper bushings used in Ponsse equipment are primarily made of high-strength aluminum bronze, distributed in core joints such as booms, cylinders, and grapples. The most reliable way to source them is by purchasing with the original part number or by providing precise dimensions for custom manufacturing.
Any inquiry or order plan, please feel free to contact Ms. Susan Shi
Cell(whatsapp): 0086 13517489983
Email: susan@slide-bearing.com
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