When choosing a skid steer loader or compact track loader, two important specifications always appear on the datasheet:

Tipping Load

Rated Operating Capacity (ROC)

Many buyers confuse these two figures. Here is a simple explanation of their relationship and why wheeled and tracked machines use different ROC standards.

What Is Tipping Load?

Tipping load is the maximum load a machine can carry before it begins to tip forward under controlled testing conditions.

It represents the machine's ultimate stability limit, not the recommended working load.

A higher tipping load usually means:

Better stability

Stronger lifting capability

Improved material handling performance

However, machines should never operate continuously at full tipping load during daily work.

What Is ROC (Rated Operating Capacity)?

ROC is the safe working load recommended by the manufacturer.

It is calculated as a percentage of the tipping load to ensure:

Safe operation

Better machine balance

Improved operator control

Reduced risk of overturning

ROC Standards: Wheel vs Track Loaders

Wheeled Skid Steer Loaders

For wheeled skid steer loaders, the industry standard is:

ROC=50%×Tipping LoadROC = 50\% \times \text{Tipping Load}ROC=50%×Tipping Load

Example:

Tipping Load: 2000 kg

ROC: 1000 kg

Wheeled machines usually operate on harder and more stable surfaces, allowing a higher operating ratio.

Compact Track Loaders (Tracked Skid Steers)

For compact track loaders (CTLs), manufacturers typically use a more conservative standard:

ROC=35%×Tipping LoadROC = 35\% \times \text{Tipping Load}ROC=35%×Tipping Load

Example:

Tipping Load: 2000 kg

ROC: 700 kg

Tracked loaders often work on:

Soft ground

Mud

Uneven terrain

Slopes

Because tracks generate stronger traction and different stability behavior, a lower safety factor is used.

Why Some Manufacturers Show Both 35% and 50%

Brands like Bobcat may display both values in specifications because:

50% represents the general tipping-load reference

35% represents the official safe ROC standard for tracked loaders

This helps customers compare machine stability and lifting performance more accurately.

How Counterweights Affect ROC

Additional counterweights can:

Increase machine balance

Improve tipping load

Increase allowable ROC

This is especially useful when using:

Heavy buckets

Hydraulic attachments

Pallet forks

Forestry or demolition tools

Final Thoughts

Understanding the relationship between tipping load and ROC helps buyers select the right machine for safe and efficient operation.

In general:

Wheeled skid steer loaders use ROC at 50% of tipping load

Compact track loaders use ROC at 35% of tipping load

When comparing machines, always check:

ROC standard used

Operating weight

Counterweight configuration

Hydraulic performance

Real working conditions

Choosing the correct balance between lifting power and stability is the key to long-term productivity and safety.