Overview
Demarec specializes in the development and manufacturing of equipment for the demolition and recycling industry, primarily designed for mounting on excavators. The company emphasizes innovation, product development, and design, aiming to provide added value through favorable operating costs, excellent price-quality ratio, and low maintenance costs. Demarec is committed to offering high levels of service and regularly introduces new products to the market.

Product Specifications
The document provides detailed technical data for Demarec's demolition and sorting grabs, specifically the DN and DS series. Key specifications include:

• Carrier weight ranging from 10-70 tons depending on the model.
• Weight of the grabs varies from 855 kg to 4170 kg.
• Capacity ranges from 340 L to 1660 L.
• Closing force varies from 43 KN to 140 KN.
• Hydraulic specifications include a maximum opening/closing pressure of 350 bar and a flow rate of 80-200 L/min.

Main Features

• Delta-Box frame with robust end stops for durability.
• Heavy-duty rotation motors with shock protection.
• Optional fill-in top rubber closures from DRG-17 model onwards.
• Double roller ring gear available from DRG-28 model and up.
• Wear blades made from HB500 steel, which can be turned three times.
• Load safety valve and hydraulic cylinder end damping for safety and efficiency.

Design and Innovation
Demarec's grabs are designed to withstand harsh conditions, featuring powerful closing strength and robust construction. The Delta-box frame and single large diameter cylinder ensure low reactive forces and ease of maintenance. The shells are made from high-grade material, providing torsion rigidity and optimal visibility.

Safety and Maintenance

• Standard load safety valve ensures safe operation.
• Sealed pivot points keep grease in and debris out.
• Twin rotation motors for extra power in models DRG-28 to 45, with optional motors for DRG-17 to 22.
• Filters in the rotation circuit to maintain performance.

Conclusion
Demarec's equipment is characterized by robust innovation, leading to a low total cost of ownership. The company's extensive experience and focus on customer service make it a reliable partner in the demolition and recycling industry.