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Transportation

Transportation Hydraulic Stud Tensioners

Hydraulics Technology offers hydraulic stud tensioning solutions for diesel engines used in railroad locomotives applications. 

We offer complete field service kits for GE EVO Tier 3 and 4, Cummins, and Jenbacher locomotive engines as well as fully automated tensioning systems for locomotive cylander heads.   

We can also build custom tensioners for any transportation fastening application. 

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About Hydraulic Tensioning and HTI

Hydraulic tensioning is the ideal method for tightening bolted connections. Hydraulic tensioning eliminates inaccuracies and helps achieve correct bolt loading in critical connections. HTI’s hydraulic tensioning systems can help control the significant costs resulting from incorrectly tightened studs, as well as drive higher efficiency in your assembly process. At HTI, we’ve been building hydraulic tensioners and nuts since 1986. 

 

GE EVO field service kit

Locomotive Hydraulic Tensioning Applications

  • Cylinder heads
  • Main bearing caps
  • Flywheels
  • Connecting rods
  • Railroad tracks

Locomotive Field Service Kits

The following locomotive field service kits are available:

GE EVO Tensioner Kit

Model Tier 3

GE EVO Tensioner Kit

Model Tier 4

CUMMINS Tensioner Kit

Model QSK95

JENBACHER Tensioner Kit

Model Series 6

Key Features of HTI’s Hydraulic Stud Tensioners and Nuts

  • Compact, Lightweight, and Easy-to-use Design
  • They just work! Trouble–free, No–Leak, Ultra-Reliable, Lo–Friction Seals
  • Extremely safe – safer than other bolting methods
  • Overstroke Indicator - fail-safe design if accidentally over-extended
  • Extra–Long Working Stroke (0.6 inch/15mm)
  • Twin Hydraulic Ports enables hydraulic chaining for larger systems
  • Tensioners Have Optional, Captive Nut Rotating Socket
  • Available in a variety of finishes 
  • High Temperature and Large stud diameter options

Automated Tensioning Systems

HTI has developed a number of automated tensioning systems for the rail industry. These systems automatically handle positioning, engagement, tensioning, nut turn down, device removal, and overall system monitoring and regulation. 

With HTI’s automated tensioning systems, we handle everything, including electrical, control, mechanical, and hydraulic systems design, and project management, and deliver an automated tensioning system that is ready to drop into your manufacturing process. Contact us to get started on your automated tensioning system.

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Custom Hydraulic Tensioning Systems

With decades of providing the highest quality tensioners for many industries and to many industry leading companies, HTI is the right source for your hydraulic tensioning applications. Contact us today to learn more about our hydraulic bolt tensioning services for the transportation and rail industries. 

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Ask A Question

If you have questions, comments, would like more information about our products, or want to get started designing your custom tensioning solution, please contact us and we will respond promptly.