euro EMC Observatory Pier P300 - Height 1200 mm, Payload 100 kg Telescope Weight

euro EMC Observatory Pier P300 - Height approx. 1200 mm, Payload 100 kg Telescope Weight

The star observatory pier P300 with its pyramid shape is, as the smaller P200, uncompromisingly designed for high load carrying capacity. The upper part of the pyramid has a cross-section which corresponds to a tube with 300 mm diameter, because of this the pier has the name. The lower part, where the effective forces are the highest, the diameter reaches 500 mm at the 1000 mm high version. The stiffness follows the diameter in third power, thus the diameter of 500 mm is already clearly superior to, let´s say a steel tube Ø300 mm and 15 wall thickness, if it is burdened with the particularly critical loading case "bending".

Almost more important than sheer diameter is the conical design, as acting forces are directed into the material mostly as significantly more harmless tensile stress, substantially reducing vibrations. By well-directed tuning of wall thickness, cross section and slope, euro EMC achieves maximum rigidity at very low proper weight - consequently the P300 can be still handled well with muscle power, despite its high payload.

The holes at the ground can be closed for filling the observatory pier additionally with sand.

An adjustable 4-point arrangement forms the especially rigid transition from the welded pyramid to the precision machined surface for receiving the telescope mount. The mounting plate consists of stainless steel and has a regular diameter of 290 mm. We will be glad to take over the adaption of your mount.

A stationary column reaches its theoretical rigidity only with ideal floor anchoring. This fact is rarely given due attention and it is with a screw also not very easy to reach. The pyramid shape with its large surface area and the matching anchor sets provide optimum solutions for this issue.

A hole at the bottom allows accesss to the internal anchoring to the ground.

The pyramid is made of steel sheet and regularly white powder-coated. With this surface, it will withstand common climatological conditions, but can be shimmed with an additional corrosion protection for permanent outdoor operation. For extreme requirements, exclusive use of stainless steel is possible.

Anchoring to the ground

As mentioned, a column must be anchored well if it should be rigid. For the observatory piers, there are two optional possibilities:

Anchoring Kit 1 (image 5) for existing concrete surfaces Delivery as shown, but you get 8 times the parts. Comprising heavy duty M12 anchors and associated parts for a simple and optimal fitting.

Anchoring Kit 2 (image 6) when newly concreted. Two ring plates set during concreting with the threaded rods providing a particularly good anchorage to the ground. After curing the pier is simply attached to the anchor ensuring ideal power transmission. Each column height requires a dedicated anchoring kit.