Why Choose the Derui Hub & Rotor Tester?Are you tired of inconsistent manual checks slowing down your production line? When you’re manufacturing high-performance cycling components, precision isn’t ju ...
Are you tired of inconsistent manual checks slowing down your production line? When you’re manufacturing high-performance cycling components, precision isn’t just a requirement—it’s your reputation. We built the Derui Flower drum disc brake rotor wobble testing machine to solve the headaches of traditional quality control. Instead of relying on subjective visual inspections, we offer a data-driven solution that ensures every bicycle hub and rotor leaving your factory is dead straight.
Here is why manufacturers are switching to our automated hub QC equipment:
We don’t just look at one angle. Our system performs a comprehensive Total Indicator Reading (TIR) measurement by simultaneously checking multiple critical points. Whether you are dealing with standard hubs or complex e-bike hub motor assemblies, we capture the full picture in a single rotation.
Axial Runout: Detects side-to-side movement (wobble) on the rotor mounting face.
Radial Runout: Measures up-and-down deviations (hop) on the hub flange.
Concentricity: Ensures the axle and shell are perfectly aligned.
Time is money on the shop floor. You shouldn’t need a different machine for every hub standard. Our universal fixturing design allows operators to switch between different hub types—like Front 100mm, Rear 142mm, or Boost 148mm—in under 3 minutes.
| Feature | Benefit |
|---|---|
| Modular Clamps | Swap between Thru-Axle and Quick Release setups instantly. |
| Tool-Free Adjustment | No wrenches needed for standard size changes. |
| Wide Compatibility | Handles everything from road hubs to heavy-duty E-bike motors. |
Detecting a warped rotor or a misaligned flange requires more than a simple “pass/fail” gauge. Our intelligent software analyzes the Disc brake rotor lateral runout (LRO) in real-time. By using high-precision laser displacement sensors, we can identify Disc thickness variation (DTV) and specific warp patterns that human eyes miss. The system automatically filters out noise from surface roughness, focusing purely on the structural geometry that affects braking performance.
In modern manufacturing, if you didn’t record it, it didn’t happen. Every test cycle on our machine is logged automatically. We provide full data traceability, linking specific runout values to individual serial numbers.
Exportable Reports: Generate CSV or PDF reports for ISO 4210 compliance.
Trend Analysis: Spot tool wear or machining drift before it becomes a rejection pile.
Cloud Integration: Optional API connectivity to your MES (Manufacturing Execution System).
When we talk about precision in bicycle manufacturing, the numbers matter. We designed the Flower drum disc brake rotor wobble testing machine to handle the tight tolerances required by modern cycling standards, from high-end road bikes to rugged e-bike hub motors. Below are the core specifications that drive our equipment’s performance.
Our machine is built for stability and repeatability. We use high-precision sensors to catch even the slightest deviations in hub concentricity and rotor alignment.
| Feature | Specification |
|---|---|
| Power Supply | AC 110V/220V, 50/60Hz (Global Compatibility) |
| Sensor Type | Contactless Laser Displacement Sensor |
| Measurement Accuracy | ±0.005 mm |
| Cycle Time | < 10 seconds per unit |
| Data Interface | USB / Ethernet / RS232 |
| Weight | Approx. 120 kg |
| Dimensions | 800mm (L) x 600mm (W) x 1500mm (H) |
Versatility is key for any production line. Whether you are checking disc brake rotor lateral runout (LRO) on a standard mountain bike hub or inspecting a specialized flower drum assembly, this machine adapts easily.
Rotor Diameter: Supports standard sizes from 140mm to 220mm.
Hub Width (O.L.D.): Adjustable from 100mm (Front) to 148mm/150mm (Boost/DH).
Axle Types: Compatible with Quick Release (QR) and Thru-Axle (12mm, 15mm, 20mm).
Runout Detection Limit: Capable of measuring Total Indicator Reading (TIR) down to 0.01mm.
Rotor Mounts: Native support for both Center Lock and 6-bolt configurations.
This range ensures that your wheelset manufacturing quality control remains consistent, regardless of the component specifications you are running that day.
Understanding how our Flower drum disc brake rotor wobble testing machine operates is key to seeing why it integrates so smoothly into high-volume production lines. We designed this workflow to minimize cycle time while maximizing the accuracy of Total Indicator Reading (TIR) measurement. Here is the step-by-step process:
The process begins with the operator or an automated robotic arm placing the component onto the test station. Whether you are testing a standard bicycle hub or an E-bike hub motor, the loading area is designed for easy access. We use distinct guides to ensure the part sits correctly before the cycle even starts, preventing misalignments that could skew the initial data.
Once the part is detected, our pneumatic system engages. This isn’t just a simple vice grip; we use a precision centering mechanism that mimics the actual mounting forces of a bike frame. This ensures that we are measuring the hub concentricity exactly as it would behave on a rider’s bike. The clamping pressure is adjustable, allowing you to safely secure delicate lightweight alloy hubs or heavy-duty steel components without deformation.
With the part secure, the drive unit spins the hub at a consistent, pre-set RPM. As the rotor turns, high-precision laser displacement sensors (or contact probes, depending on your configuration) engage the surface. These sensors scan the braking surface in real-time, capturing thousands of data points per second to detect even the slightest disc brake rotor lateral runout (LRO). This dynamic rotation is crucial for identifying warp that static measurements often miss.
The raw data is instantly fed into our proprietary control software. The system calculates the Disc thickness variation (DTV) and overall wobble against your specific tolerance limits. The software filters out noise and vibration to provide a clean, accurate reading of the hub flange alignment and rotor trueness. You get a clear Pass/Fail result on the screen in milliseconds, along with a visual graph of the runout profile.
Based on the analysis, the machine automatically directs the workflow.
Pass: The clamp releases, and the part is marked as approved or moved to the “Good” conveyor.
Fail: If the 6-bolt rotor warp detection exceeds the limit, the machine locks the station or diverts the part to a reject bin. This prevents defective units from moving downstream to wheel building or packaging, ensuring your wheelset manufacturing quality control remains uncompromised.
Our flower drum disc brake rotor wobble testing machine isn’t just for one niche; it’s built for the high-volume demands of modern cycle manufacturing. We specifically serve sectors where precision directly impacts rider safety and product reputation.
Bicycle Hub Manufacturers: Whether you are producing standard road hubs or heavy-duty MTB hubs, ensuring hub concentricity and flange alignment before assembly is critical.
Disc Brake Rotor Production: For factories specializing in braking components, detecting disc brake rotor lateral runout (LRO) and disc thickness variation (DTV) is the only way to prevent brake shudder and noise.
E-Bike & Hub Motor Assembly: With the higher speeds and weight of E-bikes, the tolerance for wobble is zero. Our equipment handles E-bike hub motor testing to ensure smooth power delivery.
Wheelset Assembly Lines: Wheelset manufacturing quality control relies on checking the “flower drum” (hub) interface to ensure the final wheel builds true and stays true.
We understand that if your parts don’t meet international standards, you can’t sell them. We designed our testing protocols to align with the rigorous requirements of the global cycling market.
ISO 4210 Compatibility: Our testing parameters can be configured to meet or exceed ISO 4210 brake testing equipment standards regarding safety and runout limits.
CEN & JIS Standards: For clients exporting to Europe or Japan, our data logging provides the necessary traceability to prove compliance with local safety regulations.
Internal QC Benchmarks: Beyond official regulations, we help you hit your own internal targets for Total Indicator Reading (TIR), ensuring your premium components actually perform like premium components.
We know that investing in automated hub QC equipment brings up specific questions about compatibility and terminology. Here are the answers to the most common questions we get from global manufacturers.
Yes, absolutely. We designed the Flower drum disc brake rotor wobble testing machine with universal adaptability in mind. Whether your production line handles standard 6-bolt rotor warp detection or modern Center Lock rotor testing, our system handles both.
The fixture design allows for rapid changeovers between these interfaces. You don’t need two separate machines for different mounting standards. This flexibility is crucial for wheelset manufacturing quality control where mixed batches are common.
This is a common translation quirk that often confuses our international partners. In the context of our machinery, “Flower Drum” simply refers to the bicycle hub.
In Chinese manufacturing terms, the hub shell often resembles a drum, and the spoke flanges can look like a flower pattern, leading to the direct translation “Flower Drum.” When you see this term in our specs, just read it as “Bicycle Hub.” Our machine is a high-precision bicycle hub runout tester designed to measure the concentricity and alignment of this critical component.
Yes, we do. Reliability is worthless without accuracy. To ensure your Total Indicator Reading (TIR) measurement remains consistent over time, we provide certified calibration masters with the machine.
Standard Masters: Included for daily verification of the laser displacement sensors.
Traceability: All masters are traceable to international metrology standards.
Maintenance: We also offer guidelines on how often to run these calibration checks to maintain compliance with ISO 4210 brake testing equipment standards.
We don’t just sell you the hardware; we ensure it stays accurate for the long haul.
