PlaneWave L-550 Direct Drive Mount The L-550 is a heavy-capacity L-Series direct-drive mount rated for 136 kg (300 lb), enough to carry a second telescope on the outside hub. Direct-drive motors give zero backlash and zero periodic error with slews of up to 50° per second. It suits the DeltaRho 500, CDK17, CDK20 (f/6.8 and f/7.7), IRDK17, IRDK20 and RC20.
Manufacturer model: PlaneWave L-550 · Specifications checked against manufacturer data on 2026-11-03
The L-550 is a heavy-capacity L-Series direct-drive mount rated for 136 kg (300 lb), enough to carry a second telescope on the outside hub. Direct-drive motors give zero backlash and zero periodic error with slews of up to 50° per second. It suits the DeltaRho 500, CDK17, CDK20 (f/6.8 and f/7.7), IRDK17, IRDK20 and RC20.
Mount
Type
Alt-azimuth / equatorial direct-drive
Mount weight
153 kg (338 lb)
Maximum load
136 kg (300 lb)
Latitude range
0–90°, both hemispheres
Swing-through length
650.748 mm (25.62") from altitude axis
Motors
Direct-drive 3-phase axial-flux torque motors
Motor torque
About 20 ft-lb continuous; 50 ft-lb peak
Encoders
152 mm stainless steel ring, 18,880,000 counts/rev (0.069")
PlaneWave L-550 Direct Drive Mount The L-550 is a heavy-capacity L-Series direct-drive mount rated for 136 kg (300 lb), enough to carry a second telescope on the outside hub. Direct-drive motors give zero backlash and zero periodic error with slews of up to 50° per second. It suits the DeltaRho 500, CDK17, CDK20 (f/6.8 and f/7.7), IRDK17, IRDK20 and RC20.
Manufacturer model: PlaneWave L-550 · Specifications checked against manufacturer data on 2026-11-03
