10Micron GM4000 BHP Steel Levelling Flange

10Micron GM4000 BHP Steel Levelling Flange

This Baader BHP levelling flange is the 100 mm-high version for GM4000 / PlaneWave L-350. Its exact manufacturer part number is 2451185; the published net weight is 28 kg.

Levelling close to the mount

The flange compensates unevenness in the foundation or pier and deviations from the required north-south orientation. Adjustment is made near the mount so the supporting pillar can remain rigid.

Steel construction

Two solid steel plates are separated by six steel bars. The top plate is precision-milled and threaded for the specified mounting interface, providing a defined support surface for the mount assembly.

Required interfaces

The listed mount interface is GM4000 pier flange 1454090 / 10M4090. Use it with the compatible Baader BHP pillar or another properly prepared support. The mount, pillar and required pier/base adapter are separate components; this record does not represent a complete installation.

Baader Planetarium manufacturer documentation

Compatibility notes

Exact Baader manufacturer SKU 2451185; 100 mm height and 28 kg published net weight. The 10Micron summary gives 108 mm, while Baader’s exact component is 100 mm. The component manufacturer’s 100 mm value is used.