Savox SV1250MG Plus HV Digital Mini Cyclic Servo 8kg 7.4V SAV-SV1250MG

Overview

The Savox HV Digital Mini Cyclic Servo 8kg/0.095s@7.4V - Plus (SAV-SV1250MG+) represents a significant advancement in compact servo technology for RC enthusiasts across the UK and beyond. This high-voltage mini servo delivers exceptional power and speed in a dramatically compact footprint, making it the ideal choice for precision RC applications where both strength and responsiveness are critical. Whether you're piloting a 3D aerobatic helicopter, configuring swashplate assemblies for cyclic control, or building a compact RC model that demands high torque in minimal space, this servo provides the professional-grade performance that separates competitive pilots from casual flyers.

The SV1250MG+ is engineered specifically for operators who refuse to compromise on performance. It can be operated directly on a 2S LiPo battery, delivering an impressive 8kg of torque at 7.4V with a lightning-fast 0.095-second response time per 60 degrees of rotation. This makes it equally suitable for regular flying or 3D hardcore RC manoeuvres. The servo has earned recognition as the perfect choice for popular helicopter models such as the Logo 480 Xxtreme and Goblin 500, where swash plate servo performance directly impacts flight precision and aerial capability. For anyone serious about RC helicopters or models requiring responsive cyclic control, the Savox SV1250MG+ is simply the professional servo solution you need.

Built with the reliability and engineering excellence Savox is renowned for, this servo combines cutting-edge digital control technology with robust construction materials. The coreless motor design delivers smooth, precise movements without dead zones, whilst the steel gear train ensures durability even under the demanding conditions of aggressive 3D flying or continuous operation. If you're searching for a dependable, high-performance RC servo UK retailers recommend, or seeking to upgrade your existing setup with genuine professional-grade components, the Savox HV Digital Mini Cyclic Servo represents outstanding value and proven performance.

Key Features

• High-Voltage Capable (7.4V Operation) — The servo is specifically engineered to operate safely and reliably at 7.4V, providing significantly higher torque output than standard servos operating at lower voltages, giving you the performance advantage when every millisecond counts in competitive or 3D flying scenarios.
• Exceptional Torque for Mini Size — Delivering 8kg of torque at 7.4V (111.1 oz-in), this mini servo punches well above its weight class, providing the strength needed for precise swashplate control, cyclic inputs, and responsive flight dynamics in compact RC helicopter platforms.
• Blistering Speed Response — With a 0.095-second response time per 60 degrees at 7.4V, this is one of the fastest mini servos available, ensuring your control inputs translate instantly to model movement, critical for 3D aerobatic manoeuvres and precision hovering.
• Steel Gear Train Construction — The durable steel gears provide exceptional resistance to wear and mechanical stress, protecting your investment during intensive use and ensuring consistent performance across countless flight hours, even during hardcore 3D flying sessions.
• Aluminium Middle Case for Thermal Management — The aluminium case construction allows superior heat dissipation during extended operation, keeping internal temperatures manageable and maintaining consistent performance even during back-to-back flights or prolonged use.
• Compact Mini-Sized Form Factor — Measuring just 35.0 x 15.0 x 29.2mm and weighing only 29.6g, this servo fits into tight mounting spaces where standard-sized servos simply won't fit, ideal for models with space constraints or weight-critical applications.
• Digital Servo Technology — Digital circuitry provides superior holding torque, faster update rates at 333Hz, and more precise control compared to analogue alternatives, translating to smoother, more responsive flight characteristics.
• 2S LiPo Battery Compatible — The servo operates perfectly on standard 2S LiPo batteries (7.4V nominal), the most common battery format for RC helicopters, eliminating the need for specialised power systems or voltage regulators.
• Soft Start Mode and Sanwa SSR Compatibility — The new Plus ("+") model features innovative Soft Start Mode technology and compatibility with Sanwa SSR radio systems, providing enhanced integration options and smoother power-up sequences.
• Double Ball Bearing Support — The two ball bearings provide smooth, low-friction operation with minimal wear, ensuring your servo maintains consistent performance throughout its operational lifespan.
• Coreless Motor Design — The coreless motor eliminates mechanical dead zones and provides exceptionally smooth control without the jerky movements associated with slotted motor designs, crucial for maintaining flight stability.
• 25-Tooth Output Spline — The industry-standard 25-tooth servo spline ensures broad compatibility with aftermarket servo horns and control linkages, allowing you to customise your setup to match your specific model requirements.

Technical Performance

The Savox SV1250MG+ represents a pinnacle of engineering excellence in the mini servo category. Powered by a high-performance coreless motor, this servo delivers 8kg of torque at 7.4V with a phenomenally fast 0.095-second transit time, making it arguably the fastest mini servo solution for serious RC applications. The servo's dual ball bearing arrangement provides ultra-smooth operation with minimal friction loss, whilst the steel gear train offers remarkable durability against the mechanical stresses inherent in 3D aerobatic flying and precision control scenarios. At just 29.6g with dimensions of 35.0 x 15.0 x 29.2mm, the servo's compact footprint makes it perfect for swashplate assemblies in modern helicopter designs. The aluminium middle case construction is engineered for superior heat dissipation, critical during extended flying sessions where thermal buildup could compromise performance. Operating across a wide temperature range from -10°C to 50°C, the servo performs reliably in both indoor and outdoor environments. The servo operates at 333Hz refresh rate, ensuring rapid command processing and responsive control feedback. At 7.4V, the servo draws 120mA under no-load conditions, with maximum stall current reaching 2000mA when fully loaded. The pulse width range of 800-2200 microseconds provides approximately 154 degrees of maximum travel, with a neutral position set at 1500 microseconds, offering excellent range for sophisticated control applications. Whether you're configuring a competition-grade helicopter or building a high-performance 3D platform, this servo delivers the professional-grade engineering and proven reliability that serious RC pilots demand.

What's in the Box

• Savox SV1250MG+ HV Digital Mini Cyclic Servo
• Servo lead (250mm ±5mm cable length)
• 1-year manufacturer warranty documentation

What You Need to Complete

• RC helicopter or suitable model with swashplate assembly
• Radio control system with available servo channel(s)
• Battery power system (2S LiPo recommended at 7.4V nominal)
• Appropriate servo horns (25-tooth spline pattern) if not included with your model
• Connecting linkages and control rods compatible with your specific application

Frequently Asked Questions

• Is the Savox SV1250MG+ suitable for helicopter swashplate control? — Yes, this servo is specifically engineered as a cyclic servo for helicopter applications and is particularly well-suited to swashplate assemblies found in popular models like the Logo 480 Xxtreme and Goblin 500, where precision and response speed are paramount to maintaining stable, controlled flight.
• What is the difference between the SV1250MG and SV1250MG+ models? — The Plus ("+") variant features enhanced Soft Start Mode technology and compatibility with Sanwa SSR radio systems, providing smoother power sequencing and broader radio integration options compared to the original SV1250MG model.
• Can I operate this servo on a standard 2S LiPo battery? — Absolutely. The servo is specifically rated for 7.4V operation, which is the nominal voltage of 2S LiPo batteries, making it perfectly compatible with standard RC helicopter battery systems without requiring voltage regulators or special power conditioning.
• What is the response speed compared to other mini servos? — At 0.095 seconds per 60 degrees at 7.4V, the Savox SV1250MG+ is exceptionally fast, providing response speeds that exceed many competing mini servo designs, critical for 3D aerobatic flying where control responsiveness directly impacts flight performance and trick execution.
• Is this servo durable enough for 3D hardcore flying? — Yes. With steel gears, dual ball bearings, and a robust coreless motor design, the SV1250MG+ is engineered to withstand the mechanical demands of aggressive 3D flying, inverted manoeuvres, and continuous cyclic control inputs that characterise hardcore RC helicopter operations.
• What temperature range does this servo operate in? — The servo functions reliably across operating temperatures from -10°C to 50°C, making it suitable for both indoor and outdoor flying conditions throughout the UK and in various seasonal weather patterns.
• What is the weight of this servo? — At just 29.6g, the SV1250MG+ is an exceptionally lightweight servo, crucial for weight-sensitive applications where every gram impacts aircraft performance, balance, and flight characteristics.
• What is the torque output at different voltages? — The servo delivers 4.6kg of torque at 6.0V and increases to a powerful 8kg of torque at 7.4V, providing significantly enhanced control authority when operating at full high-voltage capacity, a 74% performance increase compared to 6V operation.
• How many channels does this servo require? — As a single servo unit, it requires one available servo channel on your radio control system to operate, typically configured as one of the cyclic channels on a helicopter transmitter.
• What is the wire length provided with this servo? — The servo includes a 250mm (±5mm) lead length, providing sufficient cable to reach most mounting locations within typical RC helicopter frames whilst allowing for proper strain relief and secure connections.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the SAVOX HV DIGITAL MINI CYCLIC SERVO 8KG/0.095s@7.4V - PLUS SAV-SV1250MG+ today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.