HYDRAULIC NUT: HFHN SERIES

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HYDRAULIC NUT: HFHN SERIES
Specifications
  • Maximum Tensioner Load (kN) / (tonf) 6548 / 657.2
  • Minimum Tensioner Load (kN) / (tonf) 152 / 15.2
  • Bolt Thread Size (metric) / (imperial) 7/8" / M22 - M150
  • Weight (kg) 0.7 - 88.7

Hydraulic Nuts

HYDRAULIC NUT: HFHN SERIES

In the realm of heavy machinery, critical components, and permanent joints, the challenge is not just applying a high load, but ensuring that load is sustained accurately, safely, and is readily accessible when maintenance is required. Traditional heavy-duty nuts are notoriously difficult to tighten in confined spaces and even harder to remove after years of service under high load or corrosive conditions. ABS introduces the next-generation fastening solution – THE HYDRAULIC NUT. Designed as a direct replacement for conventional hexagon nuts, our hydraulic nuts are self-contained tensioning systems. By integrating the hydraulic cylinder and locking mechanism directly into the nut structure, we offer a compact, permanent solution that delivers the pure, axial bolt tensioning benefits of a bolt tensioner—but remains fixed on the stud. Why Hydraulic Nuts are a Long-Term Investment Our hydraulic nuts are engineered for critical applications where maximum uptime and minimum effort are non-negotiable. From the first installation to critical, periodic servicing, the ABS Hydraulic Nut is your permanent partner in maintaining joint integrity across metallurgy, power generation, mining, naval sectors and many critical applications.
Features

Key Advantages you will experience:

Precision and Retention:
Achieve an accurate, pre-set bolt load with simple hydraulic pressure, eliminating the inaccuracies and thread wear. Once the load is achieved, the mechanical lock ring is engaged, ensuring the load is retained indefinitely.

Superior Accessibility:
Their compact, circular design is perfectly suited for applications with extremely low radial or height clearances, such as on large press columns, turbine casings, or couplings.

Rapid Removal, Every Time:
Years of service and rust are no match. The hydraulic feature allows for immediate and effortless tension release, guaranteeing quick, non-destructive disassembly and drastically reducing maintenance downtime.

Long Stroke Design

Enables efficient and precise bolt tensioning across a wider range of applications.

Why Hydraulic Nuts are a Long-Term Investment
Our hydraulic nuts are engineered for critical applications where maximum uptime and minimum effort are non-negotiable.

From the first installation to critical, periodic servicing, the ABS Hydraulic Nut is your permanent partner in maintaining joint integrity across metallurgy, power generation, mining, naval sectors and many critical applications.

Choose permanence, choose precision. Choose ABS Hydraulic Nuts.

Call to Action

Achieve permanent precision and simplify critical maintenance.

Whether you need to purchase the HFHN Series for your inventory or opt for a Dry or Supervised Rental for a specific project, contact us now.

Email: marketing@absgroup.in | Phone: +91-8282829795


Technical Data

The HFHN Series is built for long-term use in high-load, extreme low-clearance environments.

Metric

Bolt Thread Size

Max. Load (kN / tonf)

Max. Pressure (Bar)

Minimum

M22 / 7/8″

152 kN / 15.2 tonf

1500

Maximum

M150 / 6″

6,548 kN / 657.2 tonf

1500

Let's discuss further to get better results

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+918282829795

marketing@absgroup.in

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Frequently Asked Questions

You will find answers to about our various industries and industry specialists service and more. Please feel
free to contact us if you don't get your question's answer in below.

HFHN Hydraulic Nuts serve as a direct replacement for conventional nuts. They enable the accurate loading of the bolt, and the applied load is permanently retained through a load-locking collar.

HFHN Hydraulic Nuts prioritize safety with features such as CE marking, a safe over-stroke device, a max stroke indicator, and pressure test certification. The comprehensive safety measures contribute to reliable performance.

HFHN Hydraulic Nuts incorporate the latest seal technology, ensuring a high cycle life and an optimized load-to-weight ratio. The integration with ABS pumps and hoses further enhances their technological capabilities.

HFHN Hydraulic Nuts offer a range of options, including thread sizes from M22 to M150, imperial or metric designs, configurations for special load requirements, variations for different temperatures, subsea use, long stroke designs, single or twin ports, corrosion-resistant plating, and stainless steel versions. This versatility caters to diverse application needs.
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