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Specialist in Multirotor Tech & FPV Equipment

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Tru-Spin Precision Propeller Balancer

Tru-Spin Precision Prop Balancer

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It's a myth that some props don't require balancing; all props regardless of the brand must be balanced to a greater or lesser extent. It's especially important to balance props for multirotor use. Multicotper flight electronics and particularly the accelerometer within flight controllers are very sensitive to vibrations. Excessive vibration can results in very bad performance, in the worse case rendering the craft unflyable.

This virtually frictionless balancer uses precision-machined aluminium rotating wheels, self-centering locking cones and a hardened grounded shaft to give pinpoint accuracy when balancing your propellers. 

It will balance model airplane props of all sizes and weights, boat props, spinners, car wheels, helicopter rotor heads, jet fans, fly wheels, etc. Each balancer comes complete with easy to follow assembly and prop balancing instructions.

With prop balancers you get what you pay for, many cheaper balancers come with shafts and cones that are out of balance and aren't true running making them unusable.


  • Balances props of all sizes and weights, boat props, spinners, car wheels, heli rotor heads, jet fans, fly wheels, etc.
  • Completely adjustable propeller balancer
  • Securely centers and locks props on to the balancing shaft for utmost accuracy
  • Virtually frictionless
  • Unique over/under set-up option accommodates even large-scale props

Assembly required instructions included.

Click on the 'Advice' tab for tips on how to balance props.

  • Cone Diameter: 16mm (biggest end)
  • Shaft Diameter: 3mm


  • 1 x Tru-Spin Prop Balancer (unassembled)
  • 1 x User Mannal

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How to balance your props: Balancing your props is a necessity. If your rotors are not balanced, one blade will be heavier than the other which will cause an excessive amount of vibration. This vibration will lead to extra wear on motors and bearings, make sensors less accurate at the detriment of flight performance, and make getting good video almost impossible.

The general principle of prop balancing is to determine the “heavy side” of the propeller and then to either remove material from the heavy side, or add weight to the light side. A prop is truly balanced if it can be stopped and will remain stationary in any position.

Method 1: Lightly sand the backside of the heavier blade with fine sandpaper. Recheck often to avoid removing too much material. Removing material at the very end of the heavy blade will have maximum impact, and avoid changing the airfoil shape.

Method 2: Apply a drop of medium CA to the backside of the light blade and use a piece of waxed paper or a plastic bag over your finger to smooth the CA into a thin film. Cure the CA with a light spray of accelerator. Re-check the balance. Apply more CA in thin layers until the propeller is balanced. NOTE: Before adding glue to a prop, make sure it is absolutely clean and free of any oil residue.

If the prop comes to rest in a level position, but is still obviously out of balance (this is indicated by a repetitive seesaw motion around the y axis or the prop dropping to one side after placing the prop vertically) you
 may need to add weight to the lighter side of the hub. Do not remove material from the hub. This could weaken the prop, making it unsafe.

UK Express Shipping - Next Day Delivery on orders placed before 4pm

Christmas 2017 Recommended Posting Dates:

1st Class: Thursday 21 December (Not a guaranteed service)

Royal Mail Special Delivery Guaranteed: Thursday 21 December

DHL Express:  Thursday 21 December

Royal Mail Special Delivery Satruday Guaranteed: Friday 22 December

All information relating to shipping and delivery is stated here. Should you not find what you are looking for, please contact us.

UK Postage: Low value, small packages are sent using Royal Mail First Class. Larger and higher value orders are sent with Royal Mail First Class Recorded delivery. Consignments exceeding 2kg will be shipped using DHL or by a courier of our discretion. All high value orders are fully insured and will likely require a signature on delivery. Shipping cost are calculated once items have been been placed in your basket. We process orders Monday to Friday. Here at Flying Tech we pride ourselves on our quick turnaround of orders. If stocks levels allow, we aim to dispatch orders placed before 4pm the same day - please note that the DHL cut off for same day collection, next day delivery is 11AM. Otherwise orders will be dispatched within 48 hours of receipt of payment. A confirmation email will be sent when your items have been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.

FREE shipping in the UK on orders over £99 (this is a signed for service and insured to a maximum of £40). Please note that the offer only applies to orders with a total weight under 1Kg and that a few products are exempt from the offer.

We Ship Worldwide

International Postage: We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the weight and shipment location, the price is quoted during the checkout. Low value order can be sent by Air Mail, but are not insured. Higher value, heavy goods will be sent with DHL or an alternative courier. Orders shipped outside the EU may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.

Flying Tech International Shipping with DHL Express

For our international customers who require a rapid delivery we off a DHL Express service. DHL Express offers NEXT DAY delivery to most European destinations and a very fast delivery for countries further afield, generally 2-3 days. For country specific estimated transit times, please refer this download.

We reserve the right to modify, remove or add to any of these services at any time. We endeavour to ship all items as fast as possible. If you would like an alternative shipping arrangement to be made please contact us.