Atmospheric Application
Designed for atmospheric consistometers
93°C Max.
For atmospheric cement slurry conditioning
Replaceable Thimble
Replace the worn thimble separately
Maintenance Saving
Reduces unnecessary full-assembly replacement
The Atmospheric Consistometer Paddle Assembly is a dedicated stirring component used in atmospheric consistometers for oil well cement slurry conditioning and thickening-time testing.

The paddle assembly provides controlled and uniform movement of the cement slurry during testing, helping maintain consistent shear conditions and improve test repeatability.
NITHONS supplies atmospheric consistometer paddle assemblies as replacement and spare parts for cementing laboratories, oilfield service companies, cement additive manufacturers and research institutions.
A key advantage of the NITHONS design is its replaceable thimble structure. The thimble is connected to the central shaft by threads, allowing the worn thimble to be replaced separately without replacing the complete paddle assembly.
An atmospheric consistometer paddle assembly is the rotating stirring component installed inside the slurry cup of an atmospheric consistometer.
During a cement thickening-time or slurry conditioning test, the paddle rotates inside the cement slurry to provide controlled mixing and shearing.
Its main functions include:
Maintaining uniform cement slurry movement
Providing consistent shear conditions
Supporting repeatable cement slurry testing
Helping maintain homogeneous slurry during conditioning
Transmitting rotational movement from the consistometer drive system to the slurry
The paddle assembly is therefore an important working component of an atmospheric consistometer.
One of the main advantages of the NITHONS atmospheric paddle assembly is its threaded, replaceable thimble design.
The central shaft and thimble are connected by threads. When the thimble becomes worn, deformed or damaged after long-term operation, the thimble can be replaced separately.
There is no need to replace the complete paddle assembly when only the thimble requires replacement.
This design provides several benefits:
Only the damaged component needs to be replaced, reducing unnecessary spare-part expenditure.
The threaded connection makes component replacement simpler and more convenient.
The main paddle shaft can continue to be used after replacement of the worn thimble.
Fast replacement of individual components helps laboratories return the consistometer to operation more quickly.
The atmospheric consistometer paddle assembly mainly consists of:
The paddle is the main slurry-contacting component. Its blade geometry is designed for controlled mixing and shearing of cement slurry under atmospheric pressure.
The thimble connects the paddle assembly to the relevant mounting or drive structure and helps maintain stable positioning during rotation.
The thimble is a replaceable component in the NITHONS design.
The thimble washer provides support and helps reduce wear at the connection between the thimble and paddle assembly.
It also helps maintain a stable connection during continuous operation.
Dedicated for atmospheric consistometer applications used in oil well cement slurry conditioning and thickening-time testing.
The paddle provides controlled movement of the cement slurry to support consistent testing conditions.
The threaded thimble can be replaced separately when worn or damaged.
Replacing only the damaged thimble can reduce the cost associated with complete paddle assembly replacement.
The threaded connection simplifies inspection, cleaning and replacement.
Suitable for routine maintenance, replacement of worn components and laboratory spare-parts inventory.
| Item | Specification |
|---|---|
| Product | Atmospheric Consistometer Paddle Assembly |
| Application | Atmospheric Consistometer |
| Main Application | Oil Well Cement Slurry Testing |
| Test Application | Cement Conditioning & Thickening-Time Testing |
| Working Pressure | Atmospheric Pressure |
| Maximum Consistometer Temperature | Up to 93°C / 200°F* |
| Main Components | Paddle, Thimble, Thimble Washer |
| Connection | Threaded Shaft / Thimble Connection |
| Thimble Replacement | Supported |
| Product Type | Replacement / Spare Part |
| Customization | Available according to equipment model |
*The maximum temperature refers to the atmospheric consistometer operating environment. Confirm the applicable specification according to the specific equipment model.
The atmospheric consistometer paddle assembly can be used for:
Oil well cement slurry conditioning
Cement thickening-time testing
Atmospheric consistometer testing
Cement slurry preparation before further laboratory testing
Routine consistometer maintenance
Replacement of worn stirring components
Cement laboratory spare-parts inventory
Oilfield service company laboratories
Cement additive development laboratories
Research and quality-control laboratories
During cement slurry testing, stable and consistent stirring is important for maintaining repeatable test conditions.
The paddle assembly directly affects the movement and shearing of the cement slurry inside the slurry cup.
A worn or damaged paddle assembly may cause:
Unstable slurry movement
Abnormal mechanical resistance
Increased vibration
Inconsistent slurry conditioning
Reduced test repeatability
Regular inspection and timely replacement of worn components can help maintain reliable consistometer operation.
| Feature | Atmospheric Paddle Assembly | HPHT Paddle Assembly |
|---|---|---|
| Equipment | Atmospheric Consistometer | HPHT / HTHP Consistometer |
| Pressure | Atmospheric | High Pressure |
| Temperature | Up to applicable atmospheric-consistometer rating | High-temperature application |
| Main Application | Cement conditioning and thickening-time testing | HPHT cement thickening-time testing |
| Thimble Replacement | Available | Model dependent |
| Installation | Equipment-specific | Equipment-specific |
Important: Atmospheric and HPHT paddle assemblies are not necessarily interchangeable. Always confirm the consistometer model and paddle dimensions before ordering.
The atmospheric paddle assembly is designed for atmospheric consistometer applications.
Because paddle dimensions, shaft length and mounting structures can vary between equipment models, compatibility should be confirmed before purchase.
For replacement orders, please provide:
Consistometer brand
Consistometer model
Existing paddle assembly photo
Shaft length, if available
Required quantity
NITHONS can check the configuration and recommend the appropriate replacement assembly.
For laboratories using atmospheric consistometers regularly, NITHONS can supply related replacement components, including:
Complete atmospheric paddle assembly
Thimble
Thimble washer
Atmospheric slurry cup
Other consistometer spare parts
Individual components can be supplied when replacement of the complete assembly is unnecessary.
NITHONS specializes in oil well cementing laboratory instruments and related accessories.
Our product range includes:
Atmospheric Consistometers
HPHT / HTHP Consistometers
Slurry Cups
Paddle Assemblies
Cement Mixing Equipment
Fluid Loss Testers
Cementing Laboratory Accessories
Consistometer Replacement Parts
We provide equipment-specific replacement parts and technical compatibility support for cementing laboratories worldwide.
It is the rotating stirring component used inside an atmospheric consistometer slurry cup to provide controlled mixing and shearing of cement slurry during testing.
The assembly mainly includes the atmospheric paddle, thimble and thimble washer.
Yes. The NITHONS design uses a threaded connection between the central shaft and thimble, allowing the thimble to be replaced separately when necessary.
It can reduce spare-part costs and maintenance time because the complete paddle assembly does not need to be replaced when only the thimble is worn or damaged.
No. Atmospheric and HPHT paddle assemblies have different application requirements and should not be assumed to be interchangeable. Please confirm the equipment model before ordering.
Yes. The thimble can be supplied separately for the applicable NITHONS atmospheric paddle configuration.
Model-specific configurations can be discussed according to the equipment dimensions and existing paddle assembly.
Send us your consistometer model number or a photo of your existing paddle assembly. We can check the configuration and recommend the appropriate replacement part.
Looking for an atmospheric consistometer paddle assembly or replacement thimble?
Please send us your consistometer model, required quantity and a photo of the existing paddle assembly.
Our technical team can check compatibility and provide a quotation for the complete paddle assembly or individual replacement components.
Request a Quote
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