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18001 Sheldon Road (Middleburg Heights, OH)

Main Facility
18001 Sheldon Road
Middleburg Heights, OH 44130
T: +1.216.267.3200

Tensor Bolt Tensioning System

The Tensor Bolt Tensioning System is a proven design that is less complex, lighter in weight, fast to operate, and easy to maintain. Tensor systems have been installed in the United States since the 1990’s and worldwide for over 35 years. Nova Machine Products has partnered with Tensor AB to provide outage support, spare parts, maintenance, and technical sales support to the North American nuclear market.

Key Features and Benefits

  • Compact design reduces the tensioner weight
  • Promotes worker safety and easy handling method
  • Reduced equipment set-up/removal time
  • Less weight added onto the carousel and polar crane
  • Reliable, less-complex design
  • Minimal tooling maintenance requirements
  • Fail-safe design with built-in redundancies and different operation modes
  • Flexible pump and console positioning in low dose area
  • Counterbalance device boosts safe and quick positioning
  • Flexible bolt tensioning system with 3 to 8 bolt tensioners
  • Floating piston

Principles of Operation

  • Lifting Beam
    • Designed to handle 8 studs
    • Balancing device for each stud to minimize handling damages
  • Stud Rack
    • Holds up t16 sets of studs and nuts
    • Designed to be handled with a forklift
    • Frame is made of stainless steel with plastic bolt holes for protection
  • Operation
    • The stud rack is placed on the refuel floor or in the cavity
    • The studs are lifted directly from the bolt cradle and placed in the stud rack
    • Each stud has a quick and easy connection/disconnection to the lifting beam

General Specifications

Weight: Approx. 1,600 lbs.
Height: Approx. 6’ with puller sleeves attached to the hoist
Pressurization Time: Less than 30 seconds adapted to customer requirements

Plant Design

PWR, BWR, CANDU