Model: Martin 4" Impacting Railcar Vibrator

Martin 4" Impacting Railcar Vibrator

Summary The Martin 4" Impacting Railcar Vibrator is a heavy-duty power upgrade to the standard 3" model, designed specifically for high-mass, stubborn loads. By doubling the unit weight (81 lbs) and increasing the piston diameter, it delivers a massive "thumping" impact at a lower frequency. This extra brute force is essential for breaking the bond of wet, sticky, or heavily compacted materials that standard vibrators often cannot move, ensuring a faster and cleaner empty.

Key Benefits

• Maximum Force for Difficult Materials: Specifically designed to move wet, sticky, and coarse materials by delivering powerful linear impacts that dislodge material adhering to railcar walls.

• Maintenance-Free Operation: When used with properly filtered, regulated, and lubricated air, these units require no internal maintenance, ensuring long-term reliability in the field.

• Easy Handling & Installation: Features a large integrated handle and male wedge bracket for quick, secure mounting to railcar female brackets.

• Durable Construction: Built with a high-strength vibrator body and specialized O-ring seals to withstand the rigors of heavy industrial use.

• Optimized Flow: The 4-inch piston diameter provides a significant increase in energy over smaller models, ensuring consistent material flow and faster unloading times.

Technical Specifications

• Piston Diameter: 4 inches (101.6 mm)

• Operating Pressure Range: 40 – 80 psi (adjust with air pressure)

• Force Output Range: 1,330 lbf @ 40 psi to 2,200 lbf @ 80 ps

• Speed Range (VPM): 1,500 – 1,900 VPM vibrations per minute

• Air Consumption Range: 22 – 42 cfm

• Weight: 81 lbs 

• Noise Level: > 85 dBA (Hearing protection required)

• Mounting: Integral male wedge (Fits LBF female bracket)

• Air Requirements: Filtered, regulated, and lubricated air (FRL kit required)

• Lubrication Rate: 1-2 drops of thin-grade air motor oil per minute

Recommended Accessories

• Control Line Kits / Hose Assemblies

• Air Motor Oil

Availability & Lead Time Note

This model typcially has short lead times.

Compare the Martin 4" (AP5-400) to other models:

• Lighter weight alternative try the little brother AP5-300RC.