Mercury 1.5 HP Sealed Motor Floor Sander Machine, 21" Apron, 175 RPM Brush Speed H-21S

The Mercury H-21S Hercules Floor Sander Machine is a high-performance solution for professional floor sanding and refinishing. Designed for large commercial and industrial spaces, this machine boasts an impressive 21” apron, making it one of the largest in its class. The powerful 1.5 HP sealed motor operates at 175 RPM, ensuring smooth, efficient sanding while protecting internal components from dust and debris.

Built for durability and performance, the H-21S features an all-metal chassis, a triple-planetary transmission for high torque, and an adjustable 48” handle for operator comfort. Its non-marking bumper and 6” transport wheels make maneuvering effortless, while the 50-foot safety cord provides extended reach. Whether tackling wood, stone, or concrete, this machine delivers exceptional results with minimal effort.

What's Included:

• Mercury H-21S Hercules 21” Floor Sander Machine
• Rotary Brush (18”)
• Rotary Pad Driver with Riser (20”)
• 50’ 14/3-Gauge Safety Power Cord
  
  

Features

Sealed 1.5 HP Motor
Prevents dust infiltration, extending lifespan and reducing maintenance needs.

Industry-Leading 21" Apron
Maximizes surface coverage for faster, more efficient sanding.

Triple-Planetary Transmission
Delivers high torque for smooth, powerful operation on tough surfaces.

All-Metal Chassis
Built for durability, providing extra weight for even sanding pressure.

Adjustable 48” Handle
Ensures operator comfort with an ergonomic design and safety interlock switch.

Non-Marking Bumper and Wheels
Prevents damage to walls and baseboards, while 6” fixed wheels enable easy transport.

50-Foot Safety Power Cord
Provides extended reach, plugging directly into the motor base for easy maintenance.

What's Included

Included with Your Purchase:

• Mercury H-21S Hercules 21” Floor Sander Machine
• Rotary Brush (18”)
• Rotary Pad Driver with Riser (20”)
• 50’ 14/3-Gauge Safety Power Cord

Specifications

• Model: H-21S
• Type: Floor Machine
• Brand: Mercury Floor Machines
• Apron Size: 21”
• Motor: 1.5 HP A/C, 2 Capacitors, 15 Amp
• Brush Speed: 175 RPM
• Weight: 108 lbs
• Chassis: Polished Aluminum
• Power Cord: 50' 14/3-Gauge Safety Power Cord
• Rotary Brush: 18”
• Rotary Pad Driver with Riser: 20”
• Wheels: 6” Non-Marking, Fixed Operating Wheels

FAQ

Q: What makes the H-21S different from other floor sanders?
A: The Mercury H-21S features a 21” apron, making it one of the largest in its class, along with a sealed 1.5 HP motor that prevents dust infiltration for enhanced durability.

Q: What types of flooring can this machine be used on?
A: The H-21S is suitable for sanding wood, stone, and concrete surfaces, making it ideal for various commercial and industrial applications.

Q: How heavy is the Mercury H-21S?
A: It weighs 108 lbs, with an all-metal chassis that provides extra weight for improved sanding pressure.

Q: How long is the power cord?
A: The machine includes a 50-foot 14/3-gauge safety power cord for extended reach and convenience.

Q: Is the handle adjustable?
A: Yes, the H-21S features a 48” adjustable handle with ergonomic design for user comfort.

Resources

Documents:

• Mercury 1.5 HP Sealed Motor Floor Sander MachineUser Manual
• Mercury 1.5 HP Sealed Motor Floor Sander Machine Wiring Diagram
• Mercury 1.5 HP Sealed Motor Floor Sander MachineParts List
• Mercury 1.5 HP Sealed Motor Floor Sander Machine Sell Sheet