GN 1418 Telescopic Slides Steel, with Full Extension and Push to Open Mechanism, Load Capacity up to 96 lbf

For the listed loading forces F_S to be absorbed reliably in the surrounding structure, all available through holes of the outer and inner slide having a Ø of 4.5 mm must be used. Alternatively, the outer slide has holes with a Ø of 6.3 mm for metric screws. The slotted holes, Ø 4.5 x 4.8 mm, are also used for mounting and facilitate adjustment. Failure to use mounting screws reduces the specified load capacity accordingly. The following screws can be used for mounting:

Designation - Standard
Socket button head screw ISO 7380
Phillips pan head screw ISO 7045
Phillips pan head self-tapping screw ISO 7049

Outer Slide
M 4
M 4
ST 3.9 / 4.2

Inner Slide
M 4
M 4
ST 3.9 / 4.2

GN 1418 telescopic slides have an opening mechanism, which is referred to as “Push to Open” or “Touch to Open” mechanism. In addition to the best possible ease of use when opening an extension, this system offers the advantage to have drawers without a handle on the front side. This results in a simple and high-quality design.

The mechanism is actuated by pressing manually on the front side of the extension or drawer. The force required to activate the opening mechanism is about 40 N per slide pair. The inner slide is extended by about 4.5 mm in its basic position and can be pushed in a maximum of 8 mm in the closing direction. This is to be taken into account in the design to avoid a collision. The pressure or release point is already reached at about 3 mm, which causes the extension to slide out smoothly to about 42 mm in the opening direction after being released.

The same force has to be overcome when closing the extension. Over the last 42 mm, the travel speed is to be reduced to max. 0.15 m/s.

When closed, the slide is held in place by the opening mechanism as a type of locking device.

The detach function allows the extension to be completely separated from one another in the area of the middle and inner slide. This feature not only facilitates mounting, it also allows the extension to be quickly removed, for example when frequent maintenance work is performed on the components located behind.

The telescopic slide can be quickly and easily detached in the extended position through activation of the release lever, allowing the inner slide to be removed from the front.

For re-attaching the slides, the ball cages need to be moved to the extended end position. Then the inner slide is inserted to the retracted end position where it locks into place automatically.

The protected arrangement of the release mechanism prevents accidental detachment of the slide.

The maximum load capacity of telescopic slides depends on the slide cross-section and the nominal length l₁ as well as the resulting stroke l₂. Furthermore, the extension width, the slide materials used and the components of the equipment options, such as the dampened self-retracting mechanism, have a corresponding influence.
The information on the maximum load capacity of the telescopic slides was determined in endurance tests under the following conditions:

• Slide arrangement in pairs, side mount
• Observance of all mounting information
• Warp-resistant test setup
• Equal distribution of the maximum load F_S over the entire extension area
• Standard slide spacing of 450 mm
• 10,000 or 100,000 test cycles (one extension and one retraction = one cycle)
• Gradual increase of the load

Wear, performance, and maximum bending were assessed after each test section.