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Product Image CNC Machined POM AOE Adjustable Airbrake Piston Head

CNC Machined POM AOE Adjustable Airbrake Piston Head

£13.50


CNC Machined POM AOE Adjustable Airbrake Piston Head – A  high quality, lightweight piston head for standard V2/V3 AEG gearboxes featuring the proven LPE AOE (angle of engagement) adjustment design, this allows for 0 – 5mm of adjustment to be precisely and easily made using LPE AOE shims while keeping the piston head centred on the piston.

The piston head body is machined from POM (Acetal) with excess material removed to minimise weight and  a full radius o-ring groove to spread the impact force and maximise durability, a seperate slimmed down aluminium core and non-bearing type bushing help to maximise durability while keeping the overall weight down. For springs over M120 an aluminium piston head is recommended.

All machined parts are fully CNC machined from solid bar in the United Kingdom by Lees Precision Engineering.

What is an airbrake piston head & how does it work?

Airbrake piston heads are much like standard piston heads but with the addition of a second 'piston' on the front, towards the end of the forward piston stroke the front of the piston head enters the cylinder head and reduces the airflow out of the nozzle, this creates a cushion of air in-front of the piston which slows it down before it impacts the cylinder head resulting in a reduction of sound from the gearbox.

As is often the case with AEGs performance of airbrake piston heads will vary from gearbox to gearbox, the type of cylinder head will have an effect on the braking, flat cylinder heads are recommended to give maximum sound reduction, aero cylinder heads (also known as 'silent' cylinder heads) will also work but the reduction will be lower, these will not work in gearboxes with an off-centre nozzle.

While these airbrakes have been designed to work in full auto they may not be suitable for very high rates of fire, in all gearboxes the removal of the second piston tooth and lowering of the third is highly recommended.

Features

Lightweight hollow piston head body with full radius o-ring groove
Lightweight aluminium core & non-bearing type bushing
9 Ports to improve the airseal
Easy and precise AOE adjustment using LPE AOE shims

Technical Specification

Material : POM (Acetal) body with 6000 series aircraft grade aluminium core and bushing
Screw Type : A2 Stainless Steel with Torx T10 head
Weight : 6g (Without shims)

Please note that a Torx T10 screwdriver will be required for installation, a small drop of medium strength threadlocker should be applied to the screw to prevent loosening during use.
UK Shipping Prices

Royal Mail First Class - £1.80, free for orders over £30.00
Royal Mail First Class Signed For - £2.70 flat rate

International Shipping Prices

Royal Mail Standard Airmail - £3.00
Royal Mail Standard Airmail – Free for orders over £30.00
Royal Mail Priority Tracked & Signed For Airmail – Starts at £9.00

Exclusions

Lees Precision Engineering does not ship to the following countries,
China, Indonesia, Peru

Dispatch & Delivery Times

Orders are normally dispatched within 3 working days of receiving payment.

Orders within the United Kingdom generally arrive within 1 – 2 working days of being dispatched however may take upto 10 working days, especially during peak times for Royal Mail.

International orders generally arrive within 3 – 10 working days of being dispatched but may take upto 15 working days.

International orders to Canada and South American countries often take slightly longer and may take upto 20 working days to arrive from the date of dispatch.