Rubber tracks and steel tracks can both be the right choice on a used excavator, but they suit different jobsites. Rubber tracks are often attractive for paved surfaces, landscaping, residential work and locations where ground disturbance should be reduced. Steel tracks become more attractive when the machine will work on rocky, abrasive or high-impact ground where durability matters more than surface protection.
Before buying, do not choose from track material alone. Check the machine model, track width, undercarriage design, expected terrain, travel distance, maintenance requirements and the actual condition of the installed tracks. Also consider whether replacement parts are available in your country. This article compares rubber and steel tracks from a buyer's point of view and explains what to inspect on a used excavator before purchase.
Rubber Tracks vs Steel Tracks: Which Should You Choose?
| Requirement | Rubber Tracks | Steel Tracks |
|---|---|---|
| Paved or finished surfaces | Usually the better direction | Can damage or mark surfaces |
| Landscaping and residential work | Often well suited | May create more ground disturbance |
| Soft ground | Good flotation depending on track design | Can also perform well with suitable shoe width |
| Rocky terrain | Higher risk of cuts and external damage | Often better suited |
| High-impact applications | Depends strongly on track design | Heavy-duty steel systems may be preferable |
| Ride comfort | Generally smoother | Typically more vibration |
| Individual component replacement | Entire belt may need replacement in some cases | Individual shoes and other components can be serviced separately |
| Surface protection | Major advantage | Depends on shoe or optional rubber pads |
Choose rubber tracks when surface protection, lower ground disturbance and smoother travel are important.
Choose steel tracks when the machine will face more abrasive, rocky or high-impact conditions and durability is the priority.
The correct answer depends on the individual machine and application.
Rubber Tracks Are Not Only for Light Work
Rubber tracks are sometimes treated as a light-duty option, but that is too simple.
Caterpillar offers both General Duty and Heavy Duty rubber tracks for certain mini excavators.
The manufacturer positions General Duty rubber tracks for lower-hour use and Heavy Duty versions for production-style applications with higher hour accumulation.
This means track construction matters as much as the material category itself.
Do not assume every rubber track has the same durability.
Steel Tracks Also Come in Different Duty Levels
Steel undercarriages are available in several specifications.
Caterpillar offers General Duty, Heavy Duty and Heavy Duty Extended Life steel track systems for different machine classes and applications.
General Duty versions target lighter or lower-impact work.
Heavy Duty versions are designed for tougher ground and more demanding operation.
Therefore, a used listing that only says “steel track” still does not tell the buyer the complete specification.
Some Excavators Are Available With Either Track Type
Several compact excavator manufacturers offer both rubber and steel configurations.
For example, Takeuchi currently offers the TB260 with:
- Rubber tracks
- Steel tracks
- Segmented rubber tracks in certain configurations
The TB250-2, TB240, TB257FR and TB280FR also have rubber and steel track configurations in the manufacturer's current lineup.
Kubota lists both rubber and steel track types for the U55-5.
This confirms an important point for used buyers:
The excavator model alone may not tell you which undercarriage is installed.
Exact specifications should be confirmed for each individual machine.
Rubber Tracks Are Useful on Paved Surfaces
Rubber tracks can reduce damage to:
- Asphalt
- Concrete
- Driveways
- Paving
- Finished landscaping
John Deere describes rubber tracks as suitable for operation across many surfaces, including paved areas.
This can make them attractive for:
- Urban construction
- Residential work
- Utility installation
- Landscaping
- Property maintenance
However, rubber does not mean zero surface damage.
Machine weight, turning technique and ground conditions still matter.
Sharp Turns Can Accelerate Rubber Track Wear
A tracked machine creates significant friction during tight turns.
On hard surfaces, repeated pivot turns can increase stress on rubber tracks.
Buyers planning frequent urban work should consider operator technique as part of track life.
Gentler turns can reduce unnecessary wear and ground disturbance.
Rubber Tracks Can Improve Ride Quality
Rubber helps absorb vibration between the undercarriage and ground.
Kubota's U17 literature describes its rubber crawler design as helping reduce vibration during travel and improve operator comfort.
Caterpillar also describes rubber tracks as providing a smoother ride and lower ground disturbance.
This can matter if the excavator frequently travels around:
- Residential sites
- Finished properties
- Urban construction areas
- Indoor demolition areas with suitable conditions
Steel Tracks Are Better Suited to Severe Ground Conditions
Steel tracks become more attractive when the excavator works in:
- Rock
- Quarries
- Demolition areas
- Forestry
- Scrap handling
- Highly abrasive ground
Caterpillar positions Heavy Duty steel undercarriages for demanding applications and tougher terrain.
Steel does not eliminate wear, but it can withstand types of external damage that may quickly damage a rubber belt.
Rock Can Be Particularly Hard on Rubber Tracks
Sharp rock can cut:
- Rubber tread
- Track edges
- Internal structure if damage becomes severe
A single deep cut can sometimes become more important than normal tread wear.
For a buyer whose main work is quarrying or demolition, steel tracks may reduce this risk.
Steel Tracks Can Create More Ground Disturbance
The durability advantage of steel comes with trade-offs.
Steel grouser shoes can damage or mark finished ground more easily than rubber tracks.
This can matter on:
- Asphalt
- Concrete
- Decorative paving
- Finished landscaping
If the machine must regularly cross finished surfaces, steel tracks may require protection or a different shoe solution.
Steel Tracks With Rubber Pads Are a Third Option
The decision is not always limited to full rubber belts or conventional steel shoes.
Caterpillar offers steel track systems with replaceable rubber pads on selected mini excavators.
The manufacturer states that this arrangement combines a steel link assembly with rubber contact surfaces.
Potential advantages include:
- Reduced terrain damage compared with conventional steel grouser shoes
- Lower vibration
- Individual rubber pad replacement
- Steel link assembly underneath
John Deere also offers steel tracks with rubber pads on certain compact excavators.
Replaceable Rubber Pads Can Change Maintenance Cost
With a conventional continuous rubber track, serious belt damage can require replacement of the track assembly.
With a steel track and bolt-on rubber pad system, individual worn pads may be replaceable.
This can be attractive for buyers who want:
- Surface protection
- Steel undercarriage serviceability
- Ability to replace individual contact pads
However, availability depends on the machine model and specification.
Segmented Rubber Tracks Are Another Configuration
Some excavators use segmented rubber-track solutions.
For example, Takeuchi offers segmented rubber track configurations on certain models such as the TB260 and TB280FR.
Do not assume a segmented system has the same maintenance method or replacement cost as a conventional one-piece rubber track.
Confirm the exact design before buying replacement parts.
Ground Pressure Depends on More Than Rubber vs Steel
Buyers sometimes assume rubber tracks always produce lower ground pressure.
Track material alone does not determine ground pressure.
Other factors include:
- Machine operating weight
- Track width
- Track contact length
- Undercarriage design
- Installed attachment
For soft or sensitive ground, compare the actual machine specification rather than using a general assumption.
Track Width Matters
Wider tracks can improve flotation but may affect maneuverability and side loading.
Track width varies by machine and configuration.
Takeuchi, for example, lists both rubber and steel configurations on several models, with track widths specified for the individual model.
Do not assume the rubber and steel versions always use identical shoe widths.
Inspect Used Rubber Tracks for Cuts and Cracks
When evaluating a used rubber-track excavator, inspect the complete circumference of each track.
Look for:
- Deep cuts
- Cracks
- Missing rubber sections
- Chunking
- Damaged edges
- Uneven tread wear
- Exposed internal reinforcement
Surface checking and major structural damage are not the same condition.
Deep cuts or exposed internal components deserve more attention.
Look for Exposed Steel Cords or Embedded Components
Rubber tracks contain internal reinforcement.
Caterpillar describes its rubber tracks as using steel embeds and continuously wound steel cables.
If internal steel reinforcement becomes exposed on a used track, the damage should be investigated before purchase.
Do not judge remaining life only from tread depth.
Check the Rubber Track Lugs and Internal Drive Area
The inner surface engages with the undercarriage components.
Inspect for:
- Damaged internal lugs
- Missing material
- Uneven drive wear
- Cracking around embedded sections
Internal damage can affect track retention even when the external tread still looks acceptable.
Check Rubber Track Tension
Correct tension is important for both performance and service life.
A track that is too loose may:
- Come off more easily
- Move poorly around the undercarriage
- Create abnormal wear
A track that is too tight can increase stress on:
- Track
- Idlers
- Rollers
- Drive components
Use the manufacturer's correct tension specification for the exact machine.
Rubber Track Replacement Should Match the Machine
Do not buy a replacement only because the overall width looks similar.
Track specifications can include:
- Width
- Pitch
- Number of links or lugs
- Internal guide design
Caterpillar's rubber track selection guidance specifically instructs users to identify track width, spacing and link or lug count when replacing tracks where a part number is unavailable.
Inspect Steel Track Shoes
On steel tracks, begin with the shoes.
Check:
- Grouser wear
- Cracks
- Bent shoes
- Broken edges
- Loose bolts
- Missing bolts
The shoes are only one part of the steel undercarriage.
Links, pins, bushings, rollers, idlers and sprockets should also be inspected.
Steel Tracks Require Full Undercarriage Inspection
Steel tracks form part of a larger mechanical wear system.
Check:
- Track links
- Pins and bushings
- Lower rollers
- Carrier rollers
- Idlers
- Sprockets
- Track tension
Detailed wear inspection is covered separately in the excavator undercarriage article in this series.
Steel Does Not Mean Maintenance-Free
Steel components can still wear rapidly in:
- Sand
- Rock
- Abrasive soil
- High travel applications
- Incorrect track tension
Caterpillar notes that undercarriage choice should reflect machine usage, terrain and application severity.
Steel tracks should be treated as durable wear components, not permanent components.
Maintenance Cost Works Differently
| Maintenance Area | Rubber Tracks | Steel Tracks |
|---|---|---|
| Main track wear | Continuous belt condition is important | Links, bushings and shoes wear separately |
| Local damage | Serious damage can affect the whole belt | Some individual components can be replaced |
| Tension | Must be maintained correctly | Must be maintained correctly |
| Rollers / idlers | Still require inspection | Still require inspection |
| Surface contact | Generally softer | More aggressive unless rubber pads are fitted |
Neither system should be assumed to have the lower total cost in every application.
Rubber Track Life Depends Heavily on Application
Rubber track life can change significantly according to:
- Surface type
- Sharp material
- Travel distance
- Turning technique
- Track tension
- Track quality
- Operating temperature
Caterpillar specifically recommends matching rubber tread design to the actual terrain and usage level.
Steel Track Wear Also Depends on Ground Conditions
Caterpillar's steel undercarriage guidance separates track types by:
- Machine usage
- Material type
- Impact level
- Expected life
- Cost requirements
This is why a machine from light earthmoving work cannot be compared only by hours with one from demolition or quarry work.
Operating Hours Are Not Enough
A 3,000-hour rubber-track excavator can have very worn tracks if it travelled frequently over sharp material.
A higher-hour machine may have recently replaced tracks.
The same applies to steel undercarriages.
Check:
- Current component condition
- Track replacement history
- Previous operating environment
- Travel use
- Maintenance
Do not estimate track condition from the hour meter alone.
Ask Whether the Tracks Have Already Been Replaced
A used machine may have:
- Original tracks
- Recently replaced tracks
- One newer track
- Aftermarket tracks
- Converted undercarriage components
Replacement is not automatically positive or negative.
Confirm the condition and compatibility of what is actually installed.
One New Track and One Worn Track Deserves Attention
If the left and right tracks are at very different wear levels, ask why.
A single replacement may simply reflect previous damage.
However, also compare:
- Left and right rollers
- Idlers
- Sprockets
- Travel performance
Uneven replacement history can reveal differences in undercarriage condition.
Check Replacement Track Availability Before Export
This is especially important for overseas buyers.
Before purchasing an older or uncommon excavator, check whether suitable:
- Rubber tracks
- Steel track links
- Track shoes
- Rollers
- Idlers
- Sprockets
are reasonably available at the destination.
A lower purchase price can become less attractive if the correct replacement track is difficult to source.
Can a Rubber-Track Excavator Be Converted to Steel?
Some excavator models are offered by the manufacturer with both configurations.
However, this does not mean every used excavator can be converted simply by changing the track belt.
Compatibility can depend on:
- Undercarriage design
- Rollers
- Sprockets
- Track width
- Machine specification
Confirm manufacturer-compatible options for the exact serial number before planning a conversion.
Steel-to-Rubber Conversion Also Needs Verification
The same caution applies in the opposite direction.
Even when a model family has both rubber and steel versions, additional components may differ.
Do not purchase a machine assuming conversion will be simple or inexpensive.
Which Track Type Better Fits Your Work?
| Buyer Situation | Direction to Consider |
|---|---|
| Residential construction | Rubber tracks |
| Landscaping | Rubber tracks |
| Frequent work on asphalt | Rubber tracks or steel with rubber pads |
| Urban utility work | Rubber tracks often make sense |
| Rock quarry | Steel tracks |
| Demolition | Steel tracks often make sense |
| Forestry or severe terrain | Steel tracks depending on machine and application |
| Mixed paved and rough work | Consider steel tracks with rubber pads where available |
This table is general buying guidance. Machine size, ground conditions and manufacturer specifications should determine the final choice.
A Practical Used Track Inspection Checklist
- Track Type: Confirm rubber, steel or steel with rubber pads.
- Model Compatibility: Confirm the installed track matches the excavator.
- Track Width: Record the actual width.
- Rubber Surface: Check cuts, cracks and missing material.
- Internal Structure: Look for exposed reinforcement.
- Rubber Lugs: Inspect internal drive areas.
- Steel Shoes: Check grouser wear and cracks.
- Bolts: Check for missing or loose shoe hardware.
- Links: Inspect wear on steel systems.
- Rollers: Check leakage and wear.
- Idlers: Check condition and position.
- Sprockets: Inspect tooth wear.
- Tension: Compare with manufacturer specification.
- Left vs Right: Compare wear levels.
- Travel: Watch track movement during operation.
- Noise: Listen for abnormal undercarriage sounds.
- Previous Use: Ask about terrain and application.
- Replacement History: Ask when tracks were changed.
- Parts Availability: Check replacement options at destination.
- Conversion: Never assume another track type can be fitted without verification.
What Should an Overseas Buyer Request?
If you cannot inspect the excavator personally in Japan, request:
- Full left-track photo
- Full right-track photo
- Rubber tread close-ups
- Inner rubber track close-ups
- Steel shoe close-ups
- Sprocket photos
- Idler photos
- Roller photos
- Track-tension view
- Travel video
For rubber tracks, close-ups of cuts and exposed reinforcement are particularly useful.
For steel tracks, component-level wear information is more important than a single full-side photograph.
Buying Used Excavators from Japan
Japanese used machinery can include mini, compact and larger excavators with rubber, steel or other undercarriage configurations.
You can check current Japanese used machinery available at EVERYCAR.jp. Inventory changes regularly, so a particular track configuration or excavator model should not be assumed to remain available.
For broader information about undercarriage wear, engines, hydraulics and other purchase checks, visit the Japanese Used Machinery & Heavy Equipment Guide.
Choose the Track for the Ground, Not for Appearance
Rubber and steel tracks solve different problems.
Rubber tracks are especially useful when surface protection, low ground disturbance and smoother travel matter. Steel tracks become more attractive when rough ground, abrasion and impact are the main concerns.
Before buying a used excavator, identify the worksite first. Then inspect the actual track condition, undercarriage components and replacement-part availability.
If you are looking for a used excavator from Japan, you can contact EVERY with your preferred manufacturer, model, size, budget and destination. Exact track specification, undercarriage condition and machine configuration should be confirmed for each individual excavator before purchase.
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