GN 1418 Telescopic Slides with Full Extension and "Push to Open" - Mechanism, Load Capacity up to 430 N

For the said loading forces F_S to be absorbed reliably in the surrounding structure, all available through-holes of the outer and inner slide having a diameter (Ø) of 4.5 must be used. Alternatively, the outer slide has holes with a diameter (Ø) of 6.3 for Euro screws. The elongated holes, Ø 4.5 x 4.8, are used likewise for fastening and facilitate adjustment during mounting when needed. Failure to use fastening screws reduces the specified load capacity accordingly. The following screws can be used for mounting:

Designation - standard
Hexagon socket button
head screw ISO 7380
Pan head screw,
Phillips ISO 7045
Pan head tapping screw,
Phillips ISO 7049

Outer slide

M 4

M 4

ST 3,9 / 4,2

Inner slide

M 4

M 4

ST 3,9 / 4,2

Telescopic slides GN 1418 come with a “push to open” or “touch to open” mechanism. In addition to ease of opening, the system allows you to have drawers without a front handle. The visual appearance is trim and high-end.

The drawers are actuated by pressing your hand on the front of the slide-out shelf or drawer. The required force to activate the opening mechanism is about 40 N per rail pair. The inner rail extends about 4.5 mm in its home position and can be pressed in a maximum of 8 mm in the closing direction. This should be taken into account during construction in order to prevent collisions. The pressure or release point is reached at about 3 mm which causes the drawer to slide out smoothly to about 42 mm in the opening direction after being released.

The same force has to be overcome when the drawer is closed. Over the last 42 mm, the drawer’s speed is reduced to a maximum of 0.15 m/s.

When closed, the rail is held by the opening mechanism as a type of lock.

Type F has additionally a detach function through which the extension slides can 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 extracted position through activation of the release lever, allowing the inner slide to be removed from the front.

For reattaching the slides, the ball cages need to be moved to the front end position. Then the inner slide is inserted to the back end stop 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 profile, the nominal length l₁, and the resulting stroke l₂. Furthermore, the extension width, the slide materials used, and the parts of the component options, such as the dampened self-retracting mechanism, have a considerable influence.
The information on the maximum load capacity of the telescopic slides was determined in fatigue tests under the following conditions:

• Slide arrangement vertical in pairs
• Observance of all mounting information
• Warp-resistant test set-up
• Equal distribution of the load F_S throughout the extension finish
• Standard slide spacing of 450 mm
• 10,000, 50,000 or 100,000 test cycles
  (one extraction and retraction = one cycle)
• Gradual increasing of load

Wear, performance, and maximum bending were assessed after every test segment.