Page 49 - HUB-4 Magazine Issue 87

Quarrying News
The Martin® SQC2STM Orion Secondary Cleaner is appropriate for all bulk handling material applications. The unit is made up of individual 6 in. (152.5 mm) blades mounted on a square steel tube assembly. Not designed for reversing belts, it is suitable for 18 – 96 in. (457 - 2438.5 mm) belt widths, belt speeds up to 1200 fpm (6 mps), and temperatures up to 250o F (121o C).
“What sets this unit apart from others on the market is the innovative, dual tensioning system with independent heavy-duty tungsten blades which are game-changing design features,” Mueller explained. “The first level of tensioning is supplied to the entire assembly using the heavy-duty SQC2STM Tensioner which applies light upward torque evenly across the belt profile for less friction and no wear on splices.”
The second level of tensioning is on the individual blade assembly. Each Orion blade assembly is attached to a steel square tube assembly which is secured a mounting plate. The square tube houses a rubber tensioner with a torsion arm bolted to each side. A specialized tungsten blade is attached to the arm. The whole system is mounted at a 90-degree angle then tensioned so each blade is vertical and perpendicular to the belt. As the belt runs, each blade assembly adjusts independently to precisely match the belt’s profile, permitting them to compensate for camber, flaws/blemishes, and stubborn material stuck to the belt’s face. To accommodate belt cupping and other uneven surfaces, the blade assemblies can be individually adjusted to match the belt profile.
The blades are specially designed for heavy-duty abrasive applications in both dry and wet environments. Tested on hard rock and slurry belts, the Orion blades offered superior cleaning results with a longer equipment life. This is due to the rugged tungsten carbide core surrounded by mild steel. Blades are also available in stainless-steel for specific corrosive materials.
The blade design features an attached deflector shield made from polypropene or rugged nylon for high temperature applications. Mounted directly to the blade in an outward scoop design, the shield ushers loosened material away from the mainframe and toward the discharge chute. This mitigates buildup on the assembly, extending the blade’s effectiveness and reducing the amount of maintenance.
Safety and ease of maintenance is a key feature and a core priority for all Martin Engineering designs. The slide-in/slide-out design allows a single worker to perform maintenance with easy access outside of the conveyor structure, eliminating the need to crawl underneath or awkwardly reach inside. This greatly improves workplace safety and reduces the amount of time and labor required for maintenance, significantly lowering the cost of operation.
“Every bulk handling operation is unique and requires equipment that is versatile and adaptable, and I think we’ve achieved that with the Orion,” said Mueller. “Martin Engineering products are developed to improve efficiency and safety, without compromising belt health. This design gives customers more options and superior results, regardless of the material or the process.”
Donghua expands
Automatic Chain
Cutting Service
Donghua Limited has expanded its automatic chain cutting facilities at its UK headquarters in the Midlands. This development enhances both efficiency and precision, transforming how cut-to-length chain products are customised for customers.
Recognised for its commitment to innovation and quality in chain manufacturing, Donghua’s upgrade to its in-house chain cutting capabilities is another milestone in its customer-focused approach. The expanded service features two fully automated machines,
each capable of cutting various chain types and pitch with accuracy and speed.
Precision and Efficiency
The automatic chain cutting machines employ advanced technology to ensure each chain is cut to the exact length required. This precision is crucial for applications where even the slightest deviation can lead to operational issues or mechanical failures. By eliminating manual cutting processes, Donghua reduces errors, delivering products that consistently meets customer specifications.
These machines can handle a wide range of chain sizes from 1⁄2” pitch to 11⁄4” pitch, and are programmed to cut Leaf Chain, Roller Chain and produce Extended Pin Chains.
Increased Capacity and Reduced Lead Times
With two machines now operational, Donghua has doubled its cutting capacity enabling it to meet higher order volumes and reduce lead times further. This ensures faster turnaround times without compromising on quality, benefiting customers in industries where delays can be costly, such as the mining and quarrying industry.
Customer Satisfaction
Delivering tailored solutions is a key differentiator for Donghua in the competitive UK chain manufacturing market. By investing in cutting-edge technology and expanding its facilities, Donghua continues to meet, and exceed, customer expectations.
The automatic chain cutting service allows customers to specify exact measurements, reducing the need for further adjustments on site which is especially valuable for OEMs and maintenance engineers requiring precision-cut chains for immediate installation.
Future Plans
Donghua plans a further two machines, each dedicated to cutting specific chain ranges. For more information visit: https://www.donghua.co.uk/
www.hub-4.com July/August - Issue 87
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