Download Brochure
To find out more about our Rotary Tube Divider, download the product brochure here:
The Rotary Tube Divider (RTD) – or rotary sample divider – is an automated mechanical solution designed for the representative mass reduction of bulk materials. This robust, all-round sub-sampling unit can be used for the mass reduction of virtually any type of dry material. The RTD operates in many multi-stage sampling systems but also functions as a stand-alone sample divider.
Please contact us, if you have questions or need more information about the sample divider and our representative sampling solutions.

To find out more about our Rotary Tube Divider, download the product brochure here:
The Rotary Tube Divider consists of a drive unit, a rotating dividing pipe, a top cone with an inspection hatch, a rotation sensor, a bottom cone with a reject outlet and one adjustable sub-sample outlet. The motor unit is connects to a pulley that drives the timing belt and rotates the dividing pipe.
In the bottom section, material is ducted to the periphery of the bottom cone’s inner wall where the sub-sampling divison ratio is determined by stepless opening of the manually adjustable outlet slit opening.
The division ratio can be adjusted between 1:8 and 1:89 depending on the RTD model and material particle size. The non-sampled material passes directly to the reject outlet(s).
Technical Options
1. The M&W central control cabinet can exchange signals with the client’s control system.
2. The RTD can be delivered with heat bearings on the lower cone.
3. The RTD can be delivered with an inner rubber coating in the housing unit to reduce operating noise levels.
4. The RTD-S (single outlet) can be delivered with a “Virtual Adjustable Divider Standard” (VAD-S) by means of an electronic controller. This means the division ratio can be electronically changed. The RTD-S can also be delivered with a VAD-Precision that in addition to the electronic also have a motor with mechanical brake (to ensure a precise stopping of the rotary tube).
Note
The Virtual Adjustable Divider can be retrofitted on any M&W RTD that is delivered after 2010.