Mining Attachments
Mining Rope Attachments

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Northern Strands offers a full range of attachments for all mining ropes, as well as a comprehensive inventory of installation equipment for purchase or rental, along with installation crews. All attachments are designed and engineered to national coal board standards, as well as government regulations. Northern Strands attachments are manufactured to a high-quality standard, governed by ISO 9001. All are wet mag particle tested, ultrasonic tested (UT) and proof loaded, and come complete with test certificates. The major advantage of manufacturing in-house is that the company can control costs and delivery.

Northern Strands Provides:

  • Customizable Dimensions
  • Complete Certification
  • Quick Delivery
  • Design
  • New Installation
  • Replacement
  • Upgrades
  • Recertification and Testing
  • Modification

Chaseblock & Link Plates

Chaseblock & Link Plates are used to connect rope end attachments to other components in the system. These are custom designed to suit each client's specific need and application. The chaseblocks can be supplied as inline, 45 degrees, or 90 degrees depending on client requirements.

All Chaseblock & Link Plates are designed with a minimum of 10:1 factor of safety, proof load tested to 2 times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.


Coarse Adjusting Linkage

Coarse adjusting linkage is primarily used in friction hoisting. Adjustment is done at the bottom station once the conveyances are chaired. Pin type coarse adjusting linkage and compensating chaseblocks are the most common types of coarse adjustment. Northern Strands can engineer and fabricate custom linkage as required.

All Coarse Adjusting Linkage are designed with a minimum of 10:1 factor of safety, proof load tested to 2 times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.


Fine Adjustment Linkage

Fine Adjustment Linkage is primarily used in friction hoisting setups. The linkage allows fine adjustment so all ropes in a muti-rope arrangement are equally tensioned and therefore working together which in turn greatly extends rope life. Adjustment is done at bottom station and without the need of chairing conveyances. The linkage is adjusted by placing a hydraulic jack in each linkage string, making length adjustments, and then setting spacer bars. The adjustment with the linkage are in balance when the last one is put in motion by the hydraulic jack. At that point, all ropes are in equal tension. The jacks are powered by a pump unit mounted on a cart also containing the spacer bars, hoses and control pendant. Coarse adjustment is made using chaseblocks mounted either above the linkage, the opposite side, or a combination of the two.

All Fine Adjustment Linkage are designed with a minimum of 10:1 factor of safety, proof load tested to 2 times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.
Fine Adjustment Linkage
Fine Adjustment Linkage

Glands

Suspension
Suspension Glands are used for a lifting, maneuvering, and banking wire ropes for removal, installation or maintenance purposes. Northern Strands glands are supplied complete with gland body, interlocking wedges, four-two bolt blocks and lifting shackles.

Maneuvering
Maneuvering Glands are used for lifting, maneuvering, and banking wire rope for removal, installation or maintenance purposes. One advantage the maneuvering gland has is that the opposing ears allow for the body to be unbolted and removed, all the while remaining suspended by the shackles.

Spherically Seated
Spherically Seated Glands are used for the suspension of guide or rub ropes. The spherical base allows for the rotation of the guide or rub ropes to change the wear pattern on the rope.

All glands are designed with a minimum of 5:1 factor of safety, proof load tested to 2 times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.
Manuevering Gland
Manuevering Gland
Suspension Gland
Suspension Gland

Pins

Northern Strands offers two main types of pins. The quick release pin consists of a pin body with a tapered end that allows for easy installation and removal. The pin is locked in place with a stainless steel locking pin and a cotter pin. The threaded pin is supplied with a nut and match drilled hole in the thread to lock in place. Rounded heads and nuts can be supplied. Both style of pin are available with a grease groove option.

All Pins are designed with a minimum of 10:1 factor of safety, proof load tested to 2 times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.


Shaft Sinking Hooks

Northern Strands offers two styles of sinking hook. The Clivvy hook is a solid plate sinking hook, which is supplied with a spring assisted locking latch. The sinking swivel hook consists of a hook integrated directly into the swivel. This offers a more economical solution, as well as a lower profile if space is an issue. This style can also be supplied with a gravity latch or spring assisted locking latch.

All Shaft Sinking Hooks are designed with a minimum of 10:1 factor of safety, proof load tested to 2 times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.


Sockets

Sockets are used on a variety of mining rope applications, including hoist, balance, guide and sinking ropes. The socket attachment offers a safe, economical connection and can be installed with either a quick and efficient wirelock resin or zinc.

Northern Strands designs and manufactures two main types of sockets, threaded and open spelter. The threaded style consists of a male and female end, in which the cap can be designed to suit specific client needs.

The open spelter type is the common style of socket. N.S. has standard catalogue sizes for open spelter sockets, as well as the capabilities to custom design for specific requirements.

All sockets are designed with a minimum of 10:1 factor of safety, proof load tested to 2½ times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.

Socket Attachment
Socket Attachment

Solid Thimbles

Solid Thimbles can be used for hoist or balance rope connections. The rope is looped around the thimble, where the live and dead ends are secured by rope clamps.

Solid Thimbles
Solid Thimbles

Swivels

Northern Strands carries the Miller line of swivels. Please click on the following link to see Miller's full line of swivels www.millerproducts.net


Thimble Cappel

Thimble cappels are used in both drum and friction hoist applications. The rope is passed around the thimble located between the two opposite jaws, which fit into the side plates. Once load is applied, the thimble is drawn into the body of the cappel, where the thimble and jaw grip the rope.

All Thimble Cappel are designed with a minimum of 10:1 factor of safety, proof load tested to 2 times safe working Load, ultrasonically and wet magnetic particle inspected. All meet or exceed national coal board standards.

Thimble Cappel
Thimble Cappel

Saskatoon (Head Office)

  • 3235 Millar Avenue
  • Saskatoon, SK S7K 5Y3

Regina

  • 125 Henderson Drive
  • Regina, SK S4N 5W4
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