Fornax 55 mount with 40-50kg payload (without counterweight, controller and polarscope)

German-type mounts. The mounts are composed of aluminium alloy, cast aluminium, bronze and stainless steel. The motors and the worm gear-drive are put in a heavy case, reducing the risks of pollution. Clutches are placed on both axes.
Both are ideal for astrophotography.
Can be use with various motor controllers, such as FS2, Boxdoerfer DynostarX3, MC5, Gemini Pulsar, On-Step, etc...
Polarscope is optional (on request).

Fornax 55:

Mount weight: 40 kg
Dimensions: 250 x 350 x 350 mm
Axis diameter: 60 mm, eloxed aluminium alloy
Ball bearing diameter: 95 mm (precision tapered roller bearings in X arrangement)
Worm gear: diameter 194 mm, 1 modul, bronze, 192 cogs
Screw spindle: diameter 22 mm, hardened, ground, stainless steel(KO13)
Recommended max telescope weight: 50 Kg
Stepper motors: Biphasic 200 steps/rotation , 1,3 Nm
Periodic error: < +/-8 arc,  
Using TDM  < +/-0.5 arc
Voltage and current: 12 V DC, full capacity current 3,5 A 
Dimensions of counterweight: 33,7mm( 1'' KO33 pipe ) x 470 mm
Step resolution: 0,5 arcsec/step
Max spedd: 4 o/sec

Fornax 105:

Weight: 50 kg (Without counterweight and platform)
Dimensions:300 x 400 x 400 mm
Axis diameter: 80 mm, eloxed aluminium alloy
Ball bearing diameter: 125 mm (precision tapered roller bearings in X arrangement)
Worm gear: diameter 242,5 mm, 1.25 module, bronze, 192 cogs
Screw spindle: diameter 27,5 mm, hardened, ground, stainless steel (KO13)
Recommended max telescope weight: 90 Kg
Stepper motors: biphasic 200 steps /rotation , 1,3 Nm
Periodic error: < +/-8 arc 
Using TDM +/- 0,5 arc
Voltage and current: 12 V DC, full capacity current 3,5 A 
Dimensions of counterweight: 42,4mm( 1,25'' KO33 pipe ) x 570 mm
Step resolution: 0,5 arcsec/step
Max speed: 4 o/sec

Fornax 155/100:

Weight: 70 kg 
Dimensions: 320 x 420 x 420 mm
Axis diameter: 100 mm, eloxed aluminium alloy
Ball bearing diameter: 150 mm (precision tapered roller bearings in X arrangement)
Worm gear: diameter 292,5 mm, 1.5 modul, bronz, 192 fog
Screw spindle: diameter 33 mm, hardened, ground, stainless steel(KO13)
Recommended max telescope weight: 100 Kg
Stepper motors: Biphasic 200 steps /rotation , 1,7 Nm   
Periodic error: < +/-6 arc, 
Using TDM  < +/-0.5 arc
Voltage and current: 24 V DC, full capacity current3,5 A 
Dimension of counterweight: 42,4mm( 1,25'' KO33 pipe ) x 570 mm
Step resolution: 0,5 arcsec/step
Max speed: 4 o/sec