Prism Survey Tribrach Adaptor Torsional Stiffness Circular Bubble GDF112 GNSS

Place of Origin China
Brand Name Leica
Certification ISO
Model Number GDF112-1
Minimum Order Quantity 5 Pieces
Price 40USD~60USD
Packaging Details Box and Carton
Delivery Time 10~20 Work Day
Payment Terms T/T
Supply Ability 500pcs per month
Product Details
Brand 100% Leica Original Color Green
Optical Plummet Yes Weight 840g
Accuracy Torsional Stiffness <3" Bubble 8' Circular Bubble
Condition New Used For Survey Instuments
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Prism Tribrach Adaptor


Torsional stiffness Tribrach Adaptor


Torsional stiffness survey tribrach

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Product Description

Leica GDF112-1 Tribrach with Optical Plummet For Surveying Total Station Prism set


Model: GDF112-1



Model GDF112-1
Brand 100% Leica Original
Color Green
Optical Plummet With
Weight 840g
Package Individual Box Package
Accuracy Torsional stiffness <3"
Type Survey Instrument Accessory
Bubble 8' Circular Bubble
Used For Survey Total Station Theodlite Auto Level with Optical plumment



Tribrach with Optical Plummet The tribrach and optical plummet are of robust construction and suitable for long period exposure in all environments. This makes the GDF112-1 ideal for GNSS and backsights and control points. Torsional stiffness <3", weight 840 grams (1.48 lb)



High accuracy, maintenance free tribrach. Individually tested. Suitable for all high angular accuracy requirements.


All Leica original tribrachs comply with the strict specifications and quality standards of Leica Geosystems. Your choice should ideally be made according to your individual accuracy requirements.

These tribrachs are suitable for non-motorised TPS instruments with angle accuracy from 5" to 7" and GNSS antenna stations as well as backsights and control points.

The torsional rigidity (or hysteresis) of the Professional 3000 Series tribrachs amounts to a maximum of 3" (1.0mgon).

The accuracy with which a tribrach returns to its starting position once the instrument has stopped, is called torsional rigidity or hysteresis. This hysteresis is the relative movement between the top plate and the base plate of a tribrach that occurs through the rotation of a TPS instrument. The hysteresis has direct influence on the angular accuracy of the instrument – and that speaks for the original. To optimize the hysteresis as Leica Geosystems has done is complex and calls for the highest precision: a movement of the top plate to the base plate of 0.3µm corresponds to an angle error of 1". Especially motorized instruments with their high acceleration and brake power require tribrachs with very high torsional rigidity.

The foot screws are maintenance free and have a larger diameter. This allows for fine adjustments, even when wearing work gloves under difficult environmental conditions.

Prism Survey Tribrach Adaptor Torsional Stiffness Circular Bubble GDF112 GNSS 0