Small Crude Oil Centrifuge Machine
Benchtop heated oil test centrifuge — 4,000 RPM, 2,498 × g, 4 × 100 mL capacity with swing-out rotor. Temperature control up to 80 °C (176 °F). Suitable for ASTM D4007 / D1796 water and sediment determination in crude oil and fuel products. Includes rotor and 4 conical glass tubes.
Louise Corscadden, PhD
Neuroscience · ConductScience
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Tabletop Heated Oil Test Centrifuge — 4 × 100 mL
The Small Crude Oil Centrifuge Machine is a benchtop heated centrifuge designed for water and sediment determination in crude oil, fuel oils, and petroleum products. Suitable for testing per ASTM D4007 (water and sediment in crude oil by centrifuge) and ASTM D1796 (water and sediment in fuel oils).
The 4-place swing-out rotor accepts 100 mL conical glass oil centrifuge tubes (37 × 200 mm), and the integrated belt heater maintains sample temperature from ambient +10 °C up to 80 °C (176 °F) with ±1 °C accuracy — critical for proper crude oil separation.
Key Features
- 4,000 RPM maximum speed, generating up to 2,498 × g relative centrifugal force
- Heated operation: RT+10 °C to 80 °C (176 °F) via belt heater, ±1 °C accuracy
- 4 × 100 mL capacity with swing-out rotor for conical oil centrifuge tubes
- 10 acceleration/deceleration programs for sample-specific protocols
- Programmable timer: 0–99 minutes
- Low noise: ≤58 dB(A) during operation
- DC brushless motor — maintenance-free
- Dual voltage: 110 V / 220 V switchable (50/60 Hz)
- Safety interlocks: electronic lid lock, over-speed protection, over-temperature shutdown, imbalance detection
Specifications
| Maximum Speed | 4,000 rpm |
| Maximum RCF | 2,498 × g |
| Speed Accuracy | ±20 rpm |
| Rotor Type | 4-place swing-out |
| Tube Capacity | 4 × 100 mL (37 × 200 mm conical glass) |
| Temperature Range | RT+10 °C to 80 °C (176 °F) |
| Temperature Accuracy | ±1 °C |
| Timer | 0–99 minutes, programmable |
| Accel/Decel Programs | 10 |
| Noise Level | ≤58 dB(A) |
| Motor | DC brushless, maintenance-free |
| Power Supply | 110 V / 220 V, 50/60 Hz (switchable) |
| Dimensions (W × D × H) | 685 × 500 × 385 mm (27.0 × 19.7 × 15.2 in) |
| Net Weight | 67 kg (147.7 lb) |
| Display | LCD touchscreen |
Applications
- Water and sediment (BS&W) determination in crude oil (ASTM D4007)
- Water and sediment in fuel oils (ASTM D1796)
- Petroleum product quality control
- Oilfield and refinery laboratory sample preparation
What's Included
- Centrifuge main unit
- 4-place swing-out rotor (100 mL)
- 4 × conical glass oil centrifuge tubes (100 mL, 37 × 200 mm)
- Power cord
- User manual
- Spare fuses
Replacement Tubes
This centrifuge uses 100 mL conical glass oil centrifuge tubes (37 × 200 mm). Replacement tubes are available separately — contact us for availability. Standard ASTM long-cone centrifuge tubes (38 × 200 mm) per ASTM D4007 / D1796 are also compatible.
How It Works
The BKC-OIL5B operates on the principle of centrifugal force separation, where samples are subjected to controlled rotational acceleration to separate components based on density differences. When the rotor spins at speeds up to 4000 rpm, centrifugal forces up to 2498 times gravitational acceleration are generated, causing denser particles and phases to migrate outward while lighter components remain closer to the rotation axis.
The integrated temperature control system maintains precise thermal conditions during separation, which is critical for processing temperature-sensitive samples and ensuring reproducible separation efficiency. The programmable timer system allows for standardized processing protocols, while the low-noise design (≤58dB) enables operation in shared laboratory spaces without disruption.
Sample tubes are secured in the rotor assembly, and the centrifugal forces create distinct layers based on component densities. This physical separation allows researchers to isolate specific fractions for subsequent analysis or to remove unwanted particulate matter from liquid samples.
Features & Benefits
Automation Level
- semi-automated
Max. Speed
- 4000 rpm
Max. RCF
- 2498 x g
Max. Capacity
- 4 x 100 mL
Timer Range
- 0-99 min
Temperature Range
- RT+10 C to 80 C (176 F)
Noise Level
- 58 dB(A) or less
Power Supply
- 110V/220V, 50/60 Hz
Weight
- 147.7 kg
Dimensions
- L: 27.0 mm
- W: 19.7 mm
- H: 15.2 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Maximum Speed | 4000 rpm | Entry-level models often offer 3000-4000 rpm | Higher speed capability enables more efficient separation of dense particles and improved processing throughput |
| Temperature Control Range | RT+10°C to 80°C | Basic models typically lack temperature control | Precise thermal management ensures reproducible results for temperature-sensitive crude oil samples |
| Sample Capacity | 4×100ml tubes | Smaller units often accommodate 2-4 tubes with varying volumes | Balanced capacity allows efficient batch processing while maintaining proper rotor balance |
| Noise Level | ≤58dB operation | Standard centrifuges often exceed 60-65dB | Quieter operation enables use in shared laboratory spaces without disrupting other research activities |
| Timer Precision | 1-99 minutes 59 seconds programmable | Basic models may offer limited timer resolution | Precise timing control prevents over-processing and enables standardized separation protocols |
The BKC-OIL5B provides high-speed centrifugation (4000 rpm, 2498×g) with integrated temperature control in a compact benchtop design. The combination of 4×100ml capacity, precise timer control, and quiet operation (≤58dB) addresses the needs of laboratories requiring reliable crude oil sample processing capabilities.
Practical Tips
Verify temperature accuracy using an independent thermometer before processing temperature-sensitive samples.
Why: Temperature variations can affect separation efficiency and sample integrity in crude oil analysis.
Clean the rotor assembly thoroughly after each use with appropriate solvents to prevent sample cross-contamination.
Why: Crude oil residues can interfere with subsequent separations and affect analytical results.
Always ensure proper tube balancing by using matched tube weights or balancing with water-filled tubes opposite your samples.
Why: Unbalanced loads cause excessive vibration, noise, and potential damage to the centrifuge mechanism.
Allow the rotor to come to complete stop before opening the lid and use appropriate personal protective equipment when handling crude oil samples.
Why: Moving rotors present injury risk and crude oil samples may contain hazardous compounds requiring proper handling procedures.
Record centrifugation parameters (speed, time, temperature) in laboratory notebooks to ensure reproducible separation results.
Why: Consistent processing conditions are essential for reliable analytical results and method validation.
If excessive vibration occurs, stop immediately and check tube balance, rotor installation, and sample distribution.
Why: Vibration indicates potential safety hazard and can damage internal components if not addressed promptly.
Pre-warm the centrifuge to target temperature before loading samples to minimize thermal equilibration time.
Why: Temperature stability throughout the run ensures consistent separation performance and prevents thermal shock to samples.
Setup Guide
What’s in the Box
- BKC-OIL5B centrifuge main unit
- 4×100ml tube rotor assembly
- Power cord
- User manual and operating instructions
- Calibration certificate (typical)
- Sample tube adapters (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering parts and technical support. Extended service plans are available for laboratories requiring additional coverage and preventive maintenance programs.
Compliance
What is the maximum sample volume and how many samples can be processed simultaneously?
The centrifuge accommodates up to four 100ml tubes simultaneously, allowing batch processing of samples while maintaining proper rotor balance.
Can the temperature be maintained during extended centrifugation runs?
Yes, the integrated temperature control system maintains precise conditions from RT+10°C to 80°C throughout the programmable timer range of 1-99 minutes 59 seconds.
What centrifugal force is achieved at maximum speed?
The unit generates maximum centrifugal force of 2498×g at the maximum speed of 4000 rpm, providing sufficient separation power for crude oil applications.
Is the centrifuge suitable for shared laboratory spaces?
Yes, the unit operates at ≤58dB noise levels, making it appropriate for shared laboratory environments without disrupting other research activities.
What power requirements are needed for installation?
The centrifuge operates on dual voltage AC110/220V at 50/60Hz, providing installation flexibility across different laboratory power systems.
How much bench space is required for installation?
The compact design requires approximately 870×590×520mm of bench space including clearance, with a net weight of 68kg requiring a stable, level surface.
Can different tube sizes be accommodated beyond the standard 100ml capacity?
The standard configuration is designed for 4×100ml tubes; consult product datasheet for available adapters and alternative rotor configurations.
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