What Thickness Should PT100 Forestry Skid Plates Be

[MikePhua]

Recommended Thickness for Forestry Protection
For the ASV PT100 Forestry compact track loader, the factory skid plates are typically made from 3/16-inch (4.76 mm) steel, though some upgraded forestry packages may use 1/4-inch (6.35 mm) plate in high-impact zones. This thickness balances protection against stumps, rocks, and debris with manageable weight and serviceability. While 1/4-inch steel offers superior resistance to gouging and denting, it adds significant mass and may complicate installation or removal without lifting equipment.
Machine Background and Application Context
The PT100 Forestry model was designed for land clearing, mulching, and brush management. It features a high-flow hydraulic system, reinforced undercarriage, and sealed cab. ASV, originally founded in Minnesota, specialized in rubber track loaders with low ground pressure and high traction. The PT100 series gained popularity in North America for forestry contractors working in rugged terrain, especially in the Southeast and Pacific Northwest.
Skid plates on these machines protect critical components such as:

• Hydraulic lines and valves
  
• Fuel tank and filters
  
• Engine oil pan and cooling system
  
• Drive motors and sprockets
  

Without proper skid protection, mulching operations can result in punctured hoses, cracked housings, or torn wiring harnesses—leading to costly downtime.
Material Selection and Fabrication Advice
If OEM plates are unavailable or prohibitively expensive, fabricating replacements from mild steel or abrasion-resistant alloy is a viable option. Consider the following:

• A36 mild steel is easy to weld and shape, suitable for general protection
  
• AR400 or Hardox 450 offers higher wear resistance but is harder to drill and bend
  
• Galvanized or powder-coated finishes help resist corrosion in wet environments
  

For DIY fabrication:

• Use plasma or oxy-fuel cutting for clean edges
  
• Reinforce mounting holes with welded collars or gussets
  
• Add drain slots or access cutouts for maintenance points
  
• Avoid sharp corners that may snag on roots or debris
  

One operator in Missouri rebuilt his PT100 using leftover 1/4-inch plate from a welding table project. While the weight was noticeable, the durability exceeded expectations during mulching in rocky terrain.
Weight Considerations and Installation Tips
A full set of 1/4-inch steel skid plates can add over 100 pounds to the machine, affecting fuel consumption and transport weight. To manage this:

• Install plates in sections for easier handling
  
• Use grade 8 bolts and lock washers to prevent loosening under vibration
  
• Apply anti-seize compound to threads for future removal
  
• Check clearance around track rollers and belly pans to avoid interference
  

During installation, lifting the machine with a forestry-rated jack or using a loader boom for support is recommended. Always follow safety protocols and secure the machine before working underneath.
Conclusion
For the PT100 Forestry loader, 3/16-inch to 1/4-inch steel is the ideal skid plate thickness depending on terrain and usage. While OEM plates offer precision fit, custom fabrication allows cost savings and tailored reinforcement. With proper material selection and mounting strategy, operators can protect their investment and operate confidently in harsh forestry conditions.