Astro-Physics 9.25" Counterweight Shaft Extension

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Astro-Physics 9.25" Counterweight Shaft Extension
$72.00
Item # AP-M12675
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  • This Astro-Physics Counterweight Shaft Extension measures 9.25" x 1.875" and eliminates the need for a separate longer shaft for those with heavier instruments.
  • Machined from the same grade 303 stainless steel as the full counterweight shafts.
  • The added length from this Astro-Physics Counterweight Shaft Extension will accommodate roughly 60 lbs. of additional counterweights.
  • Adds another 8.5" of usable length to your counterweight shaft.
  • This Astro-Physics 9.25" Counterweight Shaft Extension is recommended for all AP900 and AP1200 mounts, in addition to the 1600GTO and MACH1GTO mounts.
Description

Details

Astro-Physics 9.25" Counterweight Shaft Extension


The 9.25" Counterweight Shaft Extension completes the current 1.875" diameter counterweight shaft ensemble. It, of course, eliminates the need for a separate longer shaft for those of you with heavier instruments. Like the other current 1.875" diameter shafts, the 9.25" Extension uses the Washerless Safety Stop (M12676) to protect your toes. Its fit to the primary counterweight shaft is virtually seamless, so your weights will slide up and down smoothly.

The extension is beautifully machined from the same 303 stainless stock as the full counterweight shafts and adds another 8.5" of usable length to your counterweight shaft. It can be used to extend the 10.7" (M1053-A) and 14" (M9404-A) counterweight shafts as well as the 19.5" model (M12601-D). The added length will accommodate roughly 60 lbs of additional counterweights as well as allowing your current weights to be "levered out" for balancing. It is compatible with Astro-Physics' 5 lb. (5SCWT), 10 lb. (10SCWT) and 18 lb. (18SCWT) counterweights. The extension itself weighs 6.6 lb. (3.0 kg).

The 9.25" Counterweight Shaft Extension has a shorter lead-in thread than the full counterweight shafts and should NOT be the piece that screws into the declination axis.

This shaft extension is recommended for the 1600GTO, all 1200 models and 900 models (HDA, QMD, SMD and GTO) that have been produced, but the mount must have the current style 1.875" diameter primary counterweight shaft. It may also be used with the Mach1GTO provided that an optional 1.875" diameter shaft has been purchased.

Astro-Physics Product Number: M12675

Additional Information

Additional Information

SKU AP-M12675
Manufacturer Astro-Physics
Warranty Limited Warranty
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Included Items

Included Items

  • Astro-Physics 9.25" Counterweight Shaft Extension
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