In API Spec 10 oilwell cement testing, achieving homogeneous slurry preparation while maintaining laboratory equipment reliability is essential. The Constant Speed Mixer Blending Assembly is an engineered heavy-duty mixing component designed specifically for intense, high-RPM cement slurry preparation.
Upgraded with an innovative Dual Sealing Structure (V-Seal + Protective Rubber Seal), this blending assembly replaces standard friction-prone O-rings to deliver superior sealing performance, significantly reduced mechanical wear, and an extended operational lifespan—even under continuous exposure to abrasive cement particles and corrosive additives.
Traditional mixing assemblies often suffer from premature bearing failure and slurry leakage due to harsh cement abrasion. Our next-generation design features a specialized two-tier sealing layout:
Primary V-Shape Seal: Replaces conventional elastomeric O-rings. The directional V-profile dynamically expands under rotational pressure, forming an impermeable dynamic barrier that prevents fluid migration into internal bearing housings.
Secondary Rubber Protection Seal: Acts as a heavy-duty defense barrier, blocking fine abrasive particulates and cement flocs from reaching primary seal surfaces, drastically reducing surface friction and localized wear.
Crafted from hardened, corrosion-resistant stainless steel alloys, the precision-balanced mixing blade maintains structural integrity and aerodynamic balance at high operational speeds (up to 12,000 RPM), ensuring consistent shear rates without vibrating or galling.
Key Technical Specifications
| Feature / Parameter | Technical Specification |
| Product Type | Constant Speed Mixer Blending Assembly |
| Sealing Mechanism | Dual Seal Structure (Dynamic V-Seal + Rubber Shield) |
| Blade Material | High-Hardness Anti-Corrosion Stainless Steel |
| Speed Compatibility | Up to 12,000+ RPM Continuous Shear |
| Application | API Spec 10 Oilwell Cement Slurry Preparation |
| Maintenance Benefit | Reduced Wear, Leak-Proof Design, Extended Service Life |
Proper post-test sanitation is critical to preserving the dynamic sealing surface, preventing slurry cross-contamination, and maximizing the service life of your blending assembly. After mixing cement slurry, significant amounts of residual cement adhere to the mixer assembly surfaces and the inner wall of the slurry cup. Follow this standard four-step cleaning procedure:
Using clean fresh water and a medium-bristle brush, thoroughly rinse and scrub the inner and outer surfaces of the slurry cup, the mixing blades, and the central mixing shaft to remove bulk residual cement slurry flocculates.
Fill the slurry cup with clean water to approximately one-third of its total volume. Mount the slurry cup correctly onto the mixer drive unit. Start the motor (select Manual Mode) and run at the 4,000 RPM setting for 10 seconds. This step utilizes intense hydraulic shear action to dislodge and disperse stubborn cement deposits from the cup bottom and the hard-to-reach dead zones of the mixing blades.
Upon completion of the high-speed shear cycle, carefully remove the slurry cup from the drive housing and discard the waste fluid containing suspended cement particles.
Thoroughly rinse all contact components—including the slurry cup, mixing blades, shaft assembly, and cup lid—again with clean fresh water to ensure complete removal of any fine particulate residue. After cleaning, place all components inverted on a drain rack and maintain them in a clean, fully dry condition prior to the next test cycle.
API Spec 10 Compliance: Fully engineered to meet standardized cement preparation procedures.
Reduced Lab Downtime: Leak-proof V-seal technology eliminates frequent seal replacements and shaft seizure.
Factory-Direct Supply: Order complete replacement units, individual shaft kits, or custom blades directly with reliable international shipping.
Extend the operating life of your cementing lab mixers today.
[Request a Quote for Blending Assemblies] or [Download Spare Parts Catalog] to consult with our technical specialists for direct factory quotes and bulk ordering options.
Sino-Japanese joint venture Tianjin Nithons Technology Co., Ltd. was established in 2013, focusing on the research and development, manufacturing, sales and after-sales service of a new generation of oil cementing testing instruments and related accessories.
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