Summit Research SPD-4 MPD Bertha
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Summit Research SPD-4 MPD Bertha Shop All Categories Summit Research Tech
Summit Research SPD-4 MPD Bertha Shop All Categories Summit Research Tech
Summit Research SPD-4 MPD Bertha Shop All Categories Summit Research Tech
Summit Research SPD-4 MPD Bertha Shop All Categories Summit Research Tech

Manufacturer: Summit Research Tech

Summit Research SPD-4 MPD Bertha


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Summit Research SPD-4 MPD Bertha




Gen6 has removable key/core and comes with all keys.

First of its kind, innovation and performance meet the future of distillation. GEN 6 BERTHA series head is a unique and fascinating technology brought to you first by Summit. Inspired by the original fraction collector technology invented by Summit Research the very first in series years ago was the BIG BERTHA head. GEN 6 is common for compounds that degrade less through distillation. This technology will be a leading standard of the industry. SPD-4 MPD Bertha is made in USA.

The Summit research SPD-4 MPD (modified path distillation) BIG BERTHA is a extremely high vapor fractionation column head.

The first section starts in the flask to retain as much heat in the column as possible. This entire column and entry into flask is isolated from the outside air and the flange fittings. The first chamber is a rough fractionation chamber with a lower rejection section that prevents any condensate from moving upwards.

The center section is a secondary refinement section and will further refine the vapors. The third section is the upper fraction collector. The first dual stage fractionation column to ever be invented or used in distillation glassware, pilot or small scale. The SPD-4 MPD Bertha can achieve excessive liter per hour but tends to sit at 2-4 liters per hour (6 liters per hour with upgraded chilling and vacuum acessories) first pass and ready for crystallization. This unique hardware has a removeable long key, short keyu/well and a well stopper the newest in bertha series now has removeable cores! Vigs are not needed for this technology due to the industry first “no-vig” approach and a baffled section used replace the older approach.

Requirement to use these heads would be a sogevac + dual e2m30 -or- sogevac + e80 -or-  sogevac + e80 + diffusion array. This particular setup benefits from a custom diffusion array and an Apollo Vacuum Controller with the inert gas sweeping feature. Effectively increasing the stock speed and lowering the temperatures further.


SPD-4 MPD Bertha has #34 discharge and inlet port and comes with:

  • 2) PTFE GL14s
  • SPD-4 Stopper Well #34
  • SPD-4 Short Key Well #34
  • SPD-4 Bertha Long Key #34

Our MPD heads fit exclusively to Summit MPD boiling flasks:

  • RBF-5,000-3N-MPD
  • RBF-12,000-3N-MPD
  • RBF-22,000-3N-MPD


Refer to our instructional (SPD-4 MPD Complete) for correct setup of this head.


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*Summit recommends all users of any and all glassware to operate inside a ventilated fume hood with sufficient blast shields to prevent injury in case of fatigued glass failure.

*Summit is not responsible or liable for the result of any failures from use, and/or loss of subsequent hardware contamination/failure with or without the result of material loss or damaged caused to surroundings. By purchasing our premiere lines of laboratory glassware the user is responsible to operate in the recommended environment safely. We recommend all users to operate in a legal and licensed facility where safety is the number 1 goal.