Lever-Type Tube Bender | 1/2" & 12mm Precision Bending
TB364 Series: Professional Lever-Type Tube Bender for 180° Precision
In the refrigeration and HVAC industry, a "good enough" bend is a liability. Kinks, surface scratches, and wall flattening lead to flow restrictions and system failure. The Longrun Hardware TB364 Series is engineered to eliminate these risks, providing factory-grade 180-degree bends in demanding materials like thin-wall stainless steel and hard-drawn copper.
Technical Specifications: TB364-08A & TB364-08M
We provide dedicated, single-size mandrels to ensure the highest degree of accuracy. Unlike multi-size "universal" tools, our TB364 benders maintain the exact radius required for professional installations.
| Model Number | Tube Size (OD) | Max Bend Angle | Primary Materials |
| TB364-08A | 1/2" (12.7 mm) | 180° | Copper, Al, Thin-Wall SS, Steel |
| TB364M-08 | 12 mm | 180° | Copper, Al, Thin-Wall SS, Steel |
The Engineering Advantage: Why the TB364 Outperforms
1. Zero-Deformation Technology
Our mandrels are precision-machined to support the tube walls throughout the entire arc. This ensures no marking, no scraping, and zero flattening. Your tubing maintains its internal diameter (ID), protecting the fluid dynamics of the refrigeration system.
2. Innovative 90° Start Hook
Most manual benders require excessive force at the beginning of the bend. Our new fixed-hook design features an optimized 90-degree starting orientation.
Result: Requires significantly less physical effort.
Accuracy: Prevents the tube from slipping, ensuring your measurements stay true.
3. Calibrated "High-Visibility" Markings
Each tool features deeply etched, red-calibrated markings. Whether you are performing a simple 45° offset or a complex 180° U-bend, the high-contrast scale allows for repeatable precision in low-light job sites.
Precision Geometry: Understanding Bending Radius
To achieve professional results, the relationship between tube diameter and radius must be perfect. For example, when using a $3/16"diameter tube:
Curvature Radius: $5/8"
Technical Logic: The distance from the center point of the curvature to the center of the tube is maintained at exactly $5/8". This specific geometry prevents the outer wall from thinning excessively while keeping the inner wall from rippling.
One-Stop Source for Refrigeration Tools
Ningbo Longrun Hardware is more than a bender factory.
We provide a complete ecosystem of tools to ensure the integrity of every refrigeration cycle:
Tube Preparation: Heavy-duty cutters, pipe reamers, and deburring tools.
Joint Integrity: Flaring and swaging kits, tube expanders, and crimping pliers.
Maintenance Essentials: Ratchet wrenches, inspection mirrors, and pickup tools.
Specialty Kits: Stainless steel corrugated pipe tools for AC installation/removal.
Partner with a Leading Ningbo Manufacturer
As an OEM-capable factory, we support global distributors and industrial suppliers with high-performance hardware that meets international standards.
Are you looking to upgrade your tool inventory or request bulk pricing for the TB364 series?
Bending Radius Calculation Diagram
Example:
Using a copper tube with an outer diameter of 3/16", the distance from the center point of the bend to the center of the copper tube is 5/8" of the tube radius.
1. Diameter: 3/16'
2. Radius of curvature: 5/8'
3. Taking a copper tube with an outer diameter of 3/16' as an example the distance from thecenter of the radius of curvature to the center of the copper tube is 5/8' of the tube's radius.
We specialize in reverse engineering and custom fabrication. We can produce specialized tools based on your specific HVAC equipment drawings or physical prototypes. Furthermore, we offer in-house mold and fixture development, allowing us to create proprietary tool designs exclusive to your brand.
