Hydraulic Bolt Tensioners

Hydraulic Bolt Tensioners are professional tools that use hydraulic tension to achieve precise bolt pre-tightening. They generate elastic deformation by stretching bolts to realize torsion-free precise pre-tightening, avoiding torsional stress and friction error generated by traditional torque methods. They are especially suitable for bolt connection scenarios with large diameter and high precision requirements. Our Hydraulic Bolt Tensioners adopt high-strength alloy steel bodies and imported seals, with strong bearing capacity and reliable sealing performance. They can output stable tensile force, with high pre-tightening accuracy and good repeat consistency, which can effectively improve the reliability and service life of bolted connections. With 18 years of experience in hydraulic tool production, our products have been widely used by overseas customers in petrochemical, wind power, nuclear power and other industries, and have won professional recognition for their stable performance.

We can provide Hydraulic Bolt Tensioners with various structures such as single-stage, double-stage and multi-stage, covering the bolt specification range from M16 to M100, adapting to different pre-tightening force requirements and installation spaces. The product is equipped with an automatic reset structure, which is convenient to operate and can greatly improve the operation efficiency of bolt pre-tightening. All pressure-bearing components of the tensioner have undergone strict strength calculation and pressure resistance test to ensure safe use. Each tensioner undergoes rated pressure pressure resistance test and sealing test before leaving the factory to ensure that the hydraulic system has no leakage and the tensile force output is accurate. For overseas engineering and heavy equipment customers, we can also provide customized bolt tension solutions and matching hydraulic pump stations to meet the use needs of different working conditions.

• Flange bolt pre-tightening of petrochemical and pressure vessels
• Bolt installation of wind power, hydropower and nuclear power equipment
• Heavy bolt tightening of ships and marine engineering
• Large bolt pre-tightening of heavy machinery and metallurgical equipment
• High-strength bolt construction of bridges and steel structures

We have 2 production bases in Hangzhou and 1 cold heading factory in Ningbo, equipped with a full set of production and testing equipment such as CNC machining centers, heat treatment equipment and hydraulic test benches, with 80 skilled production personnel and a professional hydraulic R&D team, and a monthly production capacity of 60 tons of various metal parts and hydraulic tools. We have focused on the R&D and production of non-standard metal parts and hydraulic tools for 18 years. As the foreign trade export platform under Boming Hardware, our export sales have maintained a steady growth of 38% for consecutive years, and hydraulic tool products have been exported to dozens of countries and regions around the world such as Europe, the United States and the Middle East.

Our hydraulic bolt tensioners adopt special industrial toolbox packaging. The interior is fixed with custom EVA cotton shaping to protect products and accessories from bumps during transportation. The outer layer is reinforced with hard cartons and wooden pallets, fully adapting to ocean transportation and engineering site transshipment. We support FOB Shanghai port trade terms, and can assist customers in connecting with high-quality freight forwarders. The delivery cycle for standard orders is 30-45 days, and the delivery cycle for customized products can be negotiated according to demand to fully ensure customers' project progress.

We support flexible and transparent payment methods. For standard specification tensioner orders, 30% prepayment is adopted, and the balance is settled against the copy of the bill of lading; for custom orders, 40% prepayment is adopted, and 60% balance is settled against the copy of the bill of lading. We accept telegraphic transfer payment in mainstream currencies such as US dollars and euros. For large-volume procurement, corresponding tiered price discounts can be provided according to the total order volume. All payment details are clear and transparent without any hidden fees, fully guaranteeing customers' capital safety and procurement rights and interests.

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