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Hardin HPG-331 Pipe and Tube Polisher Sander Grinder for Polishing Stainless Steel

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Hardin

The Hardin HPG-331 Variable Speed Pipe Polisher is built for professionals who need consistent and high-quality finishes on stainless steel, aluminum, and other tubular metals. Powered by an 800W, 120V motor, it delivers reliable torque across a variable speed range of 700–3,000 RPM for smooth transitions from weld grinding to final polishing. Its 270° wrap-around belt design provides exceptional surface coverage, making it ideal for railings, marine tubing, and architectural metalwork. The dual roller system maintains even contact and consistent finish quality, while the spring-loaded tension arm allows fast, tool-free belt changes. A reinforced aluminum housing and sealed roller bearings ensure durability under continuous shop or field use. The HPG-331 includes a 60-grit sanding belt and supports a variety of coated and non-woven belts for sanding, blending, or mirror polishing applications.

Categories: Pipe Polisher, Pipe Polisher, Hand Planers, Pipe Polisher, Featured Products
Special Price $160.41 was $168.85
5% OFF
You save $8.44
Model# HPG-331
SKU
645710819490

This item may qualify for an upto 5% OFF further discount.  Check Eligibility.


  • Delivers professional sanding, finishing, and polishing performance on round pipes, railings, and tubular metal surfaces with a 270° wrap-around belt contact that maximizes coverage and efficiency.
  • Maintains precise speed control with a variable range of 700–3,000 RPM, allowing smooth transitions from aggressive material removal to fine surface finishing.
  • Provides consistent torque with an 800-watt, 120V motor and electronic constant-speed control that holds RPM under pressure for even, controlled results.
  • Improves belt tracking stability with a dual contact roller and drive roller system that ensures uniform surface pressure and consistent polishing results across curved sections.
  • Reduces setup time with a spring-loaded belt tension system that allows quick and tool-free sanding belt installation and maintains proper alignment during use.
  • Supports multiple belt types, including coated abrasive and non-woven finishing belts, for sanding, burnishing, blending, or mirror polishing applications.
  • Extends component life with sealed roller bearings and a metal debris guard that help prevent dust contamination during prolonged operation.
  • Enhances handling control with a balanced aluminum housing, ergonomic side handle, and angled head design for comfortable use on horizontal and vertical tubing.
  • Built for shop and field professionals with a reinforced aluminum gearbox and industrial-grade construction designed for continuous fabrication and restoration work.
    • Brand Hardin
    Model# HPG-331
    CA Prop 65

    California Proposition 65
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