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Created on 09.14
14.2mm 15.8mm Wide Band Heavy Duty Worm Gear Clamp Material – all components made with 300 grade stainless steel and the band width is 14.2mm,15.8mm. Screw is longer and has a larger diameter than standard Worm Drive clamps to provide strength under
The Heavy-Duty Worm Gear Clamp is engineered for demanding applications where standard-duty clamps are insufficient to meet the required clamping force, pressure resistance, or environmental conditions. With a wider band and reinforced screw assembly, this clamp delivers significantly higher torque capacity and structural integrity compared to standard worm drive clamps.
Material & Construction
All-Component 300-Grade Stainless Steel
All components of this clamp — including the band, screw, housing, and rivets — are manufactured from 300-series austenitic stainless steel, providing:
- Superior corrosion resistance — suitable for marine, chemical, food processing, and outdoor environments where exposure to moisture, salt, and aggressive chemicals is expected;
- Excellent mechanical strength — maintains structural integrity under high clamping loads and elevated temperatures;
- Long-term durability — resists oxidation, pitting, and crevice corrosion over extended service life.
Band Width Options
The clamp is available in two band widths to accommodate different application requirements:
Band Width | Application Profile |
14.2 mm | Heavy-duty general-purpose applications requiring enhanced clamping force over standard-width clamps |
15.8 mm | Maximum-duty applications where the widest possible band is needed for superior pressure distribution and holding power on large-diameter hoses |
The wider band distributes clamping force over a larger contact area, reducing point loading on the hose surface and providing a more uniform, reliable seal — particularly important for soft-walled hoses and high-pressure systems.
Reinforced Screw Assembly
The screw used in this heavy-duty clamp is specifically engineered to outperform standard worm drive clamp screws:
- Longer screw length — extends further into the band engagement zone, increasing the number of threads in contact with the band slots;
- Larger screw diameter — provides greater cross-sectional area to resist bending and shear forces under high clamping loads;
- Increased thread engagement — the combination of longer length and larger diameter ensures that more threads are simultaneously engaged with the band, distributing the load across a greater number of contact points.
This reinforced screw design produces a clamp that can withstand significantly higher loads without screw stripping, thread deformation, or housing failure — common failure modes in standard-duty clamps subjected to excessive torque.
Enhanced Band Material
The band material is manufactured to a slightly greater thickness than standard worm drive clamp bands, delivering:
- Higher tensile strength — the increased cross-section resists stretching and deformation under high clamping forces;
- Greater structural rigidity — the thicker band maintains its circular profile under load, preventing band distortion that can compromise the seal;
- Higher torque capacity — the combination of increased thickness and wider band width enables the clamp to produce and sustain significantly higher torque ratings than standard-duty equivalents.
Torque Specifications
Parameter | Value |
Ultimate torque (minimum) | 11.3 – 15.0 Nm |
Recommended installation torque | 7.0 – 8.5 Nm |
Important: The recommended installation torque of 7.0 – 8.5 Nm should be strictly adhered to during assembly. This value provides optimal clamping force while maintaining a safety margin below the ultimate torque rating. Overtightening beyond the ultimate torque can cause band deformation, screw stripping, or hose damage — leading to clamp failure or leakage. Always use a calibrated torque wrench to achieve consistent, repeatable results.
Applications
This heavy-duty clamp is suitable for applications where a heavier-duty clamp is necessary to meet the demands of the operating environment, including:
- High-pressure hose assemblies — where internal system pressure generates significant axial thrust that standard clamps cannot resist;
- Large-diameter hoses — where the increased surface area requires wider bands and higher torque to achieve a uniform seal;
- Vibration-intensive environments — automotive, heavy equipment, and industrial machinery where dynamic loading demands a clamp with superior holding power;
- Corrosive environments — marine, chemical processing, food and beverage, and outdoor installations where 300-series stainless steel provides essential corrosion protection;
- Critical safety applications — fuel systems, brake lines, steam lines, and other systems where clamp failure could result in equipment damage, environmental hazard, or personnel injury.
Custom Material Options
While 300-series stainless steel is the standard material for this heavy-duty clamp, other material grades may be available upon request to meet specific application requirements — including but not limited to:
- 316 stainless steel — for enhanced resistance to chlorides, saltwater, and aggressive chemical environments;
- Carbon steel with zinc plating — for cost-sensitive indoor applications where extreme corrosion resistance is not required.
Please contact us with your specific material and performance requirements for a custom quotation.
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