Recently, our engineers traveled to a Liaoning oilfield project to conduct pre-sales trials of hollow hydraulic torque wrenches and electric torque wrenches. Upon arrival at the client site, WREN engineers successfully completed the two-hour trial, earning the client's approval.

Through discussions with the client, our engineers learned the on-site application involved bolt tightening for petroleum extraction equipment, specifically M46 bolts. This installation process had historically been a bottleneck in efficiency. To enhance operational productivity and reduce labor intensity, the hollow hydraulic torque wrench brought for this trial features a working head that directly engages the bolt. This design ensures more precise torque application, lighter overall weight, and greater ease of use. The flat design reduces width, making it suitable for confined spaces. Additionally, the portable electric torque wrench is highly convenient—it operates continuously with just two removable batteries and is lightweight, reducing physical strain. For applications with limited headroom, adding a drive unit provides a perfect solution, saving both time and effort!

To ensure optimal hydraulic wrench usage, our engineers provided one-on-one technical guidance to most workshop operators, eliminating any concerns. With existing product knowledge, users readily grasped theoretical explanations involving specialized terminology during on-site demonstrations. After hands-on practice, WREN hydraulic wrench technicians emphasized safety precautions and operational techniques, leaving customers highly satisfied.

WREN engineers provide comprehensive pre-sales, sales, and after-sales support. All WREN products are guaranteed free from defects in workmanship or materials. Once you own one, we ensure complimentary repair or replacement service for one year after purchase. Our hydraulic wrench and bolting accessories range from common household types to specialized variants, covering every need.