Proxisky Ragdoll Pro SWG mount with saddle hub

If you're into astrophotography or backyard stargazing, you're going to want to hear about this. Proxisky has just released some new gear designed to take your astronomy setup to the next level — the Ragdoll 17/20 Pro SWG mounts and the Proxisky Saddle Hub.

I’ve got all the details for you below, including specs, pricing, and how to get your hands on one. Whether you're building out a new rig or upgrading your current setup, these might be just what you've been waiting for.

The Ragdoll 17 Pro mount by Proxisky is a compact yet capable German Equatorial and Alt/Az mount, designed with portability and modern control systems in mind. It weighs just 5.1 kg (11.24 lbs) and is built from a combination of carbon fiber, 6061 aluminum, and 304 stainless steel. Its finish includes a rust-proof anodized coating for durability in harsh observing environments. The mount operates on OnStepX and supports popular software platforms including ASIAIR, NINA, and KStars, offering broad compatibility for modern astrophotography workflows.

Driving the Ragdoll 17 Pro are NEMA17 42mm stepper motors with Type-17 SWG belt-driven systems on both RA and DEC axes. It can handle up to 13 kg (28.6 lbs) of equipment without a counterweight and 20 kg (44 lbs) with one. The mount features physical home sensors, along with an additional DEC sensor for those using parallel dual setups. The RA axis includes a software-adjustable physical limit sensor for added protection and precision. A Vixen-Losmandy saddle interface ensures compatibility with a wide range of telescope dovetails.

Proxisky Ragdoll Pro SWG mount with saddle hub

The Ragdoll 20 Pro offers many of the same core features as the 17 Pro but scales up its payload capacity and performance. It weighs 5.5 kg (12.13 lbs) and uses the same combination of durable materials and anti-corrosion coating. It also runs OnStepX and integrates with the same control software options. Internally, it uses upgraded Type-20 SWG belt-driven stepper motors on both axes, maintaining quiet operation and accuracy with a tested periodic error of ±10 arcseconds, verified by a PE report included with each unit.

In terms of load capacity, the Ragdoll 20 Pro can support up to 20 kg (44 lbs) without a counterweight and 30 kg (66 lbs) with one. It includes all the same alignment and safety features as the 17 Pro, including physical home and RA limit sensors, and an additional DEC sensor. The saddle remains compatible with Vixen and Losmandy systems, and the mount includes an M12-threaded counterweight shaft, a self-locking base design, and support for 3/8 and M6 bolts for tripod attachment.

Both mounts support a wide range of communication protocols including USB 2.0, Wi-Fi, Bluetooth, ST4, and integration with the UMi Mount App. GOTO slew speeds reach up to 3.5°/s. Power input is 12–15V DC through a 5.5 × 2.1 mm jack, and the mounts are engineered to operate in extreme cold, down to -30°C. They also support electronic polar scopes like iPolar and Polemaster, giving users flexibility in polar alignment routines. The Ragdoll 17 Pro is priced at $1,499 and the 20 Pro at $1,899, with deliveries beginning in late April to early May.

Complementing the mounts is the Proxisky DC/USB Saddle Hub, a smart power and data distribution module that mounts directly on Vixen or Losmandy saddles, including support for side installation. It accepts a 12-15V DC input and provides six 12V DC outputs at up to 6A, two USB 3.1 ports, and two USB 2.0 ports, each capable of delivering 5V at 3A. It supports data and power over USB 3.1 Type-B and offers high-speed connectivity for cameras, focusers, and other devices. The hub includes protections against reverse polarity, voltage spikes, surges, electrostatic discharge, and excessive startup inrush current. It can operate in conditions from -31°F to 113°F and withstands humidity up to 99%.

• Physical Home Sensors: Equipped with physical home sensors for precise alignment and tracking.​
• Additional Dec Physical Home Sensor: Includes an extra declination physical home sensor, facilitating parallel dual-setup configurations.
• Adjustable Physical RA Limit Sensors: Features physical right ascension limit sensors with adjustable angles, configurable via accompanying software or app.​
• Periodic Error: Offers a periodic error of ±10 arcseconds, with a test report provided for each unit to ensure performance standards.​
• Ergonomic Altitude and Azimuth Knobs: Designed with user-friendly altitude and azimuth adjustment knobs for improved ergonomics.​
• FRAM Integration: Both the Ragdoll 17 Pro and Ragdoll 20 Pro models are equipped with Ferroelectric RAM (FRAM) for enhanced data storage and reliability.​
   

Pricing and availability

• Ragdoll 17 Pro: Priced at $1,499, with deliveries commencing in late April to early May.​
• Ragdoll 20 Pro: Priced at $1,899, also with deliveries starting in late April to early May.​
   

Proxisky Saddle Hub

• Power Input: Accepts a 12-15V DC input.​
• Power Outputs:
• - Six DC outputs providing 12V at 6A.​
• - Two USB 3.1 ports.​
• - Two USB 3.0 ports, each delivering 5V at 3A.​
• Protective Features: Incorporates safeguards against reverse power, over/under-voltage, overcurrent, backflow current, surges, short circuits, electrostatic discharge, and excessive inrush current during startup to prevent potential damage.​
• Installation Compatibility: Supports side installation for Losmandy mounting systems.​
• Color Options: Available in Ragdoll black and UMi gray to match existing equipment aesthetics.​
   

Pricing and availability

• Saddle Hub: Priced at $209, with deliveries beginning in late April to early May.​
• Adapters: Each adapter is available for $30.​
   

Special offers

• Upgrade Option: There are 20 spots available for a $100 upgrade to include the Saddle Hub with each Ragdoll Pro order.​
• Discounted Pricing for Current Models:
• Ragdoll 17: Now available for $1,299.​
• Ragdoll 20: Now available for $1,699.​
   

Ordering information

• Preorders: Customers can place preorders now through Proxisky's official website.​
• Inclusive Pricing: All listed prices include shipping costs and applicable taxes or VAT, ensuring transparency and convenience for buyers.​
   

Ragdoll 17 Pro specifications

• Mount Type: German Equatorial, Alt/Az
• Weight: 5.1 kg (11.2 lbs)
• Material: Carbon Fiber, 6061 Aluminum, 304 Stainless Steel
• Finishing: Anodized with rust-proof coating
• OS: OnStepX
• Supported Software: ASIAIR, NINA, KStars, and more
• RA Motor: NEMA17 42mm stepper motor, Type-17 SWG, belt-driven
• DEC Motor: NEMA17 42mm stepper motor, Type-17 SWG, belt-driven
• Payload Capacity: 13 kg (28.6 lbs) without counterweight, 20 kg (44 lbs) with counterweight
• Periodic Error: ±10 arcseconds, test report included with each unit
• Home Position: Physical home sensors, plus additional DEC home sensor for parallel dual-setup
• RA Limit: Physical RA limit sensor (software adjustable)
• Saddle: Vixen-Losmandy compatible
• Counterweight Shaft Thread: M12
• Power Input: 12–15V DC, 5.5–2.1 mm plug
• Base Type: Self-locking design
• Base Connection: 3/8, 6*M6 holes, compatible with CF40 and TC40 tripods
• Communication: USB 2.0, Wi-Fi, Bluetooth, ST4, UMi Mount App
• GOTO Speed: 3.5°/s
• Power-loss Braking: RA Braking
• Electronic Polar Scope Base: Compatible with iPolar, Polemaster
• Operating Temperature: Down to -30°C
• Price: $1499 (Preorder, shipping starts late April/early May, tax/VAT included)
   

Ragdoll 20 Pro specifications

• Mount Type: German Equatorial, Alt/Az
• Weight: 5.5 kg (12.1 lbs)
• Material: Carbon Fiber, 6061 Aluminum, 304 Stainless Steel
• Finishing: Anodized with rust-proof coating
• OS: OnStepX
• Supported Software: ASIAIR, NINA, KStars, and more
• RA Motor: NEMA17 42mm stepper motor, Type-20 SWG, belt-driven
• DEC Motor: NEMA17 42mm stepper motor, Type-20 SWG, belt-driven
• Payload Capacity: 20 kg (44 lbs) without counterweight, 30 kg (66 lbs) with counterweight
• Periodic Error: ±10 arcseconds, test report included with each unit
• Home Position: Physical home sensors, plus additional DEC home sensor for parallel dual-setup
• RA Limit: Physical RA limit sensor (software adjustable)
• Saddle: Vixen-Losmandy compatible
• Counterweight Shaft Thread: M12
• Power Input: 12–15V DC, 5.5–2.1 mm plug
• Base Type: Self-locking design
• Base Connection: 3/8, 6*M6 holes, compatible with CF40 and TC40 tripods
• Communication: USB 2.0, Wi-Fi, Bluetooth, ST4, UMi Mount App
• GOTO Speed: 3.5°/s
• Power-loss Braking: RA Braking
• Electronic Polar Scope Base: Compatible with iPolar, Polemaster
• Operating Temperature: Down to -30°C
• Price: $1899 (Preorder, shipping starts late April/early May, tax/VAT included)
   

Proxisky Saddle Hub

Proxisky Saddle Hub specifications

• Supported Dovetails: Vixen & Losmandy
• Mount Compatibility: All Proxisky mounts, ZWO AM5/AM3, WD-17/20 (adapters required)
• Side Installation: Supported for Losmandy setups
   

Input

DC Input:

• Type: DC 5.5 × 2.1 mm
• Voltage: 12V–15V DC
   

USB Input:

• Type: USB 3.1 Type-B
• Use: Connection to PC, supports data and power delivery
   

Output

DC Outputs:

• Quantity: 6
• Standard: DC 5.5 × 2.1 mm
• Output: 12V, max 6A, regulated
   

USB 3.1 Outputs:

• Quantity: 2
• Output: 5V, max 3A, regulated
• Notes: High-speed data transfer
   

USB 2.0 Outputs:

• Quantity: 2
• Output: 5V, max 3A, regulated
• Notes: Suitable for most USB devices
   

Power parameters

• Total Power: 120W max (12V × 10A)
• Max DC Port Output: 6A, regulated
• Max USB Port Output: 3A, regulated
   

Safety features

DC Input Protection:

• Reverse power
• Over-voltage and under-voltage
• Overcurrent
• Backflow current
   

DC Output Protection:

• Surge
• Short circuit
• Overcurrent
• Backflow current
• Electrostatic discharge
   

Startup Protection:

• Prevents excessive inrush current during power-up
   

Operating environment

• Ambient Temperature: -35°C to +45°C
• Humidity Tolerance: Up to 99%
   

Both the Ragdoll 17 Pro and 20 Pro are compact equatorial mounts suitable for visual observation and astrophotography. With FRAM memory integration, reliable home and RA limit sensors, and compatibility with top-tier software platforms, they offer flexibility and control without the bulk of traditional mounts in their payload class. The inclusion of adjustable periodic error correction, ergonomic alt/az knobs, and app-based operation supports both novice and experienced users.

The Proxisky Saddle Hub expands the system further by offering clean cable management and reliable power distribution directly at the mount. Its six DC ports and four USB ports reduce the need for external hubs or extension cables, while its protective circuitry adds reliability for field or observatory use. Integration with Proxisky, ZWO, and other mounts using adapters increases its value as a multi-platform accessory. Overall, Proxisky's Ragdoll Pro mount lineup and the Saddle Hub form a cohesive system built for precision, safety, and convenience. Preorders are available now at Proxisky’s website with pricing that includes tax and worldwide shipping. For those seeking performance in a lightweight mount system with full accessory support, this lineup offers a practical, modern solution.

Buy the Proxisky Ragdoll Pro