Multi-Angle Milling Sub-Head Manual Positioning CF3-CNC

It's the multi-angular sub head — an accessory you mount to the existing vertical milling head. With it, you can mill parts at any angle, without tilting the part or improvising positioning setups. It rotates 360° and allows working at variable angles relative to the body fixed on the head. It's widely used in engine rebuilding shops when the machining needs to come out at an angle, such as angular milling operations on engine components.

The CF3-CNC sub head uses an ISO50 spindle taper — a robust standard very common in engine shop milling machines. The maximum rotation speed is 800 rpm. The space occupied by the sub head below the spindle is 21.7 inches (550 mm), so you need to check that clearance on your machine before installing. These specs are essential to make sure the accessory will work within your milling head's conditions.

The multi-angular sub head was designed to be adaptable to the vertical milling head. In practice, compatibility depends on the model of the head you already have in your shop. The ISO50 taper is the spindle standard for this sub head, so the main head needs to accept that taper. Check with the manufacturer or dealer using your current head's specs to confirm compatibility before purchasing.

On a manual positioning sub head, like the CF3-CNC, the operator adjusts and locks the working angle by hand before starting to machine. On a sub head with full CNC control, the angle is programmed and positioned automatically by the numerical control during the operation. The manual version is simpler to operate and costs less; the automated CNC offers greater repeatability for batch work. For most engine shops, manual positioning already handles the daily workload just fine.

You mount the CF3-CNC sub head onto the vertical milling head already installed on the machine. Then you manually position the desired angle — it rotates 360° relative to the body fixed on the head — and lock it in place. With the tool seated in the ISO50 spindle taper, the milling machine works at the angle you set. Maximum speed is 800 rpm. It's a straightforward process: set the angle, lock it, and machine.

Like any milling head, the multi-angular sub head needs regular lubrication of the bearings and rotation mechanism, plus periodic inspection of the ISO50 taper and the angular positioning locks. Wear depends heavily on how intensively it's used and how clean the work area is kept. The CF3-CNC is manufactured by Chinelatto, a Brazilian company with technical support and replacement parts available in the market. Check the manual and your authorized dealer for the recommended maintenance schedule.

The CF3-CNC is quoted on demand, and pricing varies with each customer's needs, including accessories, tooling and optional features. With in-house technology developed by Chinelatto in Brazil since 1962, you can count on responsive support from our technical team. Spare parts: many are kept in stock and the others are manufactured within a reasonable lead time. Request a quote at chinelatto.com.br/contact — our sales team will contact you very soon.