This mixer also complies with ASTM C1738 - Standard Practice for High-Shear Mixing of Hydraulic Cement Pastes.

As deeper wells are being drilled, heavier weight cements are needed to withstand higher down hole pressures. The Model 686CS has a heavy-duty motor that can handle thicker cements at the proper speed. The mixer has control buttons that the operator can use to program the proper mixing speeds and times. One control button, the API Profile button, is preprogrammed with the API standard settings, 12,000 rpm for 35 seconds. These programming features save the operator time.

Specification details are available in the following Publications:
API Specification 10A, Cements and Materials for Well Cementing
API RP 10B-2, Recommended Practice for Testing Well Cements
ASTM C1738 Standard Practice for High-Shear Mixing of Hydraulic Cement Pastes

The mixing assembly is constructed so that the blade can be removed for weighing and changing.  The Model 686CS Mixer is used in laboratories involved in oil well cement research programs, research and testing of cement additives, cement manufacturers quality assurance programs, and in the research for well servicing companies and their field labs.

Control Features

The Model 686CS Mixer has a liquid crystal display (LCD) screen that shows the operating messages on a sharp, blue backlight, making it easy to read.

The mixer also has the programming features that can be set up using these buttons:

  • Set Button- for programming profiles and mixer settings
  • Profile Button – for executing a previously programmed profile
  • API Button – to use preprogrammed API standard setting

Mechanical Features

The Constant Speed Mixer Model 686CS is equipped with a 32 ounce (946 ml) stainless steel jar.
An additional 64 ounce (1.9 liter) stainless steel jar is also available and can be ordered separately.

Constant Speed Mixer
Constant Speed Mixer

The mixer also has these control features for easy operation:

  • Power on/off Button
  • Start/Stop Button
  • Speed Controls
  • Time Controls

Ordering Information

Part No. 101656308 - Model 686CS Constant Speed Mixer 115 Volt 50/60Hz

Optional Accessories Available



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