NRH 3101-180 Heavy Duty Toggle Clamp | SPCC Blue Zinc Plated Quick Release Clamp

NRH 3101-180 Heavy Duty Toggle Clamp - SPCC Steel, Blue Zinc Plating, Screw Adjustment, 280kg Clamping Force, Over‑Center Action

The NRH 3101-180 is a professional‑grade heavy duty toggle clamp engineered for rapid and secure fastening in demanding industrial applications. Featuring a robust SPCC steel construction and a durable blue zinc plating finish, this clamp delivers exceptional strength with reliable corrosion resistance. Its standout feature is a precise screw adjustment mechanism, allowing the working length to be fine‑tuned between 166.5mm and 187.5mm to accommodate various workpiece thicknesses. With an impressive clamping force of 2743N (280kg) and a user‑friendly quick‑release blue handle, it is designed for efficient, repetitive use where speed and holding power are critical.

Regarding international compliance (ISO 9001, SGS, REACH, RoHS), these standards can be supported based on customer requirements and applicable costs - please contact us for specific certification needs. OEM and ODM services are available for custom applications.

Key details: weight 234g, mounting holes 2x Ø6.5mm and 4x Ø6.5mm. Overall length approx. 187.5mm at maximum extension. Additional dimensions as per drawing: 121mm, 107.8mm, 45.6mm, 38mm, etc.

Primary Applications

This versatile toggle clamp is ideal for quickly securing workpieces across numerous sectors:

• Metal fabrication and welding: Holding parts in place for welding jigs, fixtures, and fabrication tables
• Woodworking and carpentry: Securing boards for cutting, sanding, gluing, and assembly in shop fixtures
• General assembly and manufacturing: Used in production jigs, assembly lines, and inspection stations for part positioning
• DIY and workshop projects: A reliable tool for hobbyists and makers needing strong, adjustable clamping

How It Works - Operating Principle

This clamp operates on a powerful over‑center toggle mechanism. The blue handle acts as a lever. Pushing it down engages the clamping arm, which moves through an over‑center point to lock securely, applying the full 2743N force to the workpiece. The adjustable screw allows precise setting of the clamping arm's reach. Pulling the handle up quickly releases the tension and retracts the arm, enabling fast loading and unloading of materials.

Features & Specifications

• Extreme clamping force: Delivers up to 2743N (280kg) of holding power for secure workholding
• Adjustable length: Screw mechanism provides fine adjustment over a 21mm range (166.5-187.5mm)
• Durable build: Made from SPCC steel with blue zinc plating for strength and rust resistance
• Quick action: Lever‑operated design allows for fast, one‑handed clamping and release
• Secure mounting: Features multiple mounting holes (2x Ø6.5mm and 4x Ø6.5mm) for stable installation on workbenches or jigs

Technical Specifications

• Brand: NRH Box Hardware
• Model Number: 3101-180
• Product Name: Toggle Clamp (Heavy Duty)
• Primary Material: SPCC Steel
• Surface Finish: Blue Zinc Plating
• Product Weight: 234g
• Clamping Force: 2743N (280kg)
• Adjustment Range: 166.5mm - 187.5mm
• Mounting Holes: 2 x Ø6.5mm, 4 x Ø6.5mm
• Key Dimensions: Overall Length: ~187.5mm (max). Various detailed dimensions as per drawing (e.g., 121mm, 107.8mm, 45.6mm, 38mm, etc.)
• Compliance: ISO 9001, SGS, REACH, RoHS (available upon request - contact us for details)
• Additional Info: OEM/ODM Services Available

Why Trust NRH

NRH Box Hardware has been producing industrial clamps and hardware for decades. The NRH 3101-180 is made under a certified quality management system. Compliance with ISO, SGS, REACH, or RoHS is available upon request - please consult us for feasibility and pricing. Our long‑standing expertise in toggle clamps ensures a reliable, high‑strength clamping solution for fabrication, woodworking, assembly, and workshop applications.