Table tennis racket weight balance tester DR-1377

Designed specifically for the verification of core physical parameters of table tennis rackets (including horizontal, vertical, and special-shaped rackets), this machine centers on the simultaneous measurement of "weight, length, and balance point", catering to the needs of various scenarios such as professional competition rackets, training rackets, and children's rackets. It strictly adheres to ITTF (International Table Tennis Federation) equipment standards (with no mandatory restrictions on racket size and weight, but professional players require personalized matching) and industry customization standards (such as brand requirements for "weight 180–200g, balance point 16–18cm from the handle end"). The device achieves "3-second measurement completion" through "intelligent touch measurement + automatic calculation" (traditionally requiring 3 devices and 5 minutes of manual operation), addressing the core pain points of the industry such as "dispersed measurement with multiple devices (large space occupation, low efficiency)", "large error in manual reading (balance point deviation > 2mm)", and "unrelated data (weight and balance point cannot be analyzed simultaneously)". It is a "one-stop" core tool for racket manufacturers to "improve production line quality control", for professional players to "select personalized rackets", and for coaches to "provide technical matching guidance".

This machine can simultaneously measure the weight, length, and balance point position of the racket, and the operation is very simple. Just place the racket on the test stand. 

Main technical parameters

Core Technology Highlights and Functional Design

 Three-parameter Synchronous Measurement: Weight, Length, and Balance Point, All in One Go

The device integrates a high-precision sensor matrix (load cell + laser rangefinder + balance point detector) to achieve synchronous collection of three parameters through the "touch - positioning - calculation" three-step process:

✦ Weight Measurement (accuracy ±0.1g):

Equipped with a built-in strain gauge load cell (range 50–500g), it automatically senses the weight of the racket the moment it is placed (e.g., 185.3g), covering all types of needs from "children's lightweight rackets (150g)" to "professional power rackets (220g)";

Supports "tare function" (automatically deducts the weight of the racket cover and edge protectors), accurately measuring the "net weight of the bare racket" (traditionally, manual disassembly of accessories is required, taking more than 1 minute). 

Length measurement (accuracy ±0.5mm):

A laser distance measurement module (measuring range 100–300mm) is adopted to automatically identify the farthest points of the racket's "head end" and "handle end" (through infrared beam alignment), and output the total length (e.g., the total length of a flat racket is 260.0mm).

It supports "segmented measurement" (head length and handle length), meeting the demand for "head/handle ratio analysis" (e.g., a certain player prefers the golden ratio of "head length 160mm and handle length 100mm"). 

 High-speed imaging + intelligent analysis: Millimeter-level accuracy, results in 10 seconds. The device is equipped with a high-speed camera (1000 fps) and machine vision algorithms, achieving precise measurement of the rebound height through the three steps of "capture - recognition - calculation":

✦ High-speed capture and feature recognition:

The high-speed camera records the entire process of the table tennis ball's descent - contact with the table - rebound in real time (with a resolution of 1920×1080). It automatically identifies the "instant of contact" (with an error of ≤0.01 seconds) through image edge detection.

The vision algorithm locks the ball's center coordinates (with an accuracy of ±0.5mm), calculates the vertical distance between the "contact point" and the "highest point", and outputs the rebound height value (traditional manual measurement with a ruler has an error of >2mm). 

✦ Multi-dimensional data statistics:

A single test can automatically complete 5 consecutive bounces (such as "1 drop + 4 rebounds"), recording data such as "the height of the first rebound" and "the attenuation value of the second rebound", to verify the "elastic attenuation rate" of table tennis balls (high-quality balls have an attenuation of less than 10% after 5 bounces, while low-quality balls have an attenuation of more than 30%);

Supports "batch testing mode" (placing 10-20 balls at a time), automatically generating statistical charts of "average value, standard deviation, and non-conformance rate" (such as "the average rebound of 10 balls is 245mm, with a standard deviation of ±2mm, and all are qualified"). 

Balance point measurement (accuracy ±1mm):

Based on the principle of torque balance, the device is equipped with an "adjustable fulcrum guide rail" (travel 50–250mm). Through the "automatic balance position search" algorithm, the "center of gravity point" (i.e., balance point) of the racket is located within 3 seconds.

It outputs the "distance from the balance point to the handle end" (e.g., 17.5cm), directly reflecting the "head heavy/head light" characteristics of the racket (head heavy rackets are suitable for offense, and head light rackets are suitable for control). 

 Minimalist operation experience: Place and measure, results in 3 seconds

To meet the demands of "high-frequency measurement" and "user-friendliness for non-professionals", the device adopts a "zero-operation" design logic. Users only need to complete one action - placing the racket - and the measurement will be automatically carried out: 

✦ Intelligent positioning guidance: 

The test stand surface is marked with a "racket handle positioning line" (red scale) and a "racket head limit block" (elastic rubber pad), guiding users to align the "racket handle end with the positioning line and naturally press the racket head against the limit block" (to avoid skewing and causing errors); 

An internal pressure sensing matrix (distributed on the test stand surface) detects whether the racket is fully in contact (if not, the screen prompts "Please adjust the position") to ensure measurement accuracy. 

✦ Automatic data output:

Equipped with a 4.3-inch color touch screen (resolution 800×480), after measurement, it synchronously displays "Weight: 185.3g | Length: 260.0mm | Balance point: 17.5cm";

Supports "voice broadcast" function (such as "Weight 185 grams, length 260 millimeters, balance point 17.5 centimeters"), convenient for blind players or use in low-light scenarios. 

 Multi-dimensional data management: From measurement to analysis, the entire process is traceable

✦ Historical data storage and comparison:

Equipped with an 8GB built-in storage chip (capable of storing 100,000 sets of data), it supports historical record retrieval by "date/bat model/user ID" (such as "2025-06-15 Wang Hao's Bat 1 vs Bat 2 comparison");

Supports "dual-screen comparison" function (simultaneously displaying 2 sets of data), intuitively presenting differences such as "weight difference of 3g, balance point difference of 1.2cm" (assisting players in choosing a more suitable bat). 

✦ Customized standard settings:

Supports "user-defined thresholds" (e.g., a brand may set "weight 180–200g, balance point 16–18cm as qualified"), and automatically labels "qualified/unqualified" after measurement (unqualified items are highlighted, such as "weight 205g, exceeds upper limit");

Built-in database of professional players (e.g., parameters of Ma Long, Sun Yingsha, and other star rackets), and supports the "compare with star's same model" function (e.g., "Your racket is 5g lighter than Ma Long's same model, and the balance point is 2cm head-light"). 

 Multi-scenario Adaptability: From production lines to sports arenas, flexibly meeting demands

✦ Batch Inspection Mode for Production Lines:

Equipped with a "Quick Loading Tray" (capable of holding 10 rackets at a time) and an "Automatic Scanning Gun" (for reading racket serial numbers), a single machine can test 300-500 rackets per hour (compared to only 50 rackets per hour with traditional manual testing);

Data is automatically uploaded to the enterprise MES system (e.g., "Batch 20250620-001 of rackets, with a pass rate of 98%"), triggering the "re-inspection of non-conforming products" process. 

✦ Gym/Club Scenario:

Design a "portable handle + anti-slip base" (dimensions: 300×200×100mm, weight: 2.5kg) that supports "on-site measurement in the gym" (for example, when a coach selects a racket for a student, it can measure the parameters within 3 seconds and recommend "a head-light racket is more suitable for control-oriented playing style");

Optional "Bluetooth printer" is provided to output "personal racket parameter card" (including weight, length, balance point and playing style suggestions), enhancing user experience. 

Application scenarios and customer value

1. Racket manufacturers: 80% improvement in production line quality control efficiency

✦ Production line compatibility:

Seamlessly integrated with the "forming - coating - quality inspection" process of the racket production line, with a single machine capable of testing 6,000 to 10,000 units per day (based on an 8-hour workday), meeting the production demand of "200,000 units per month" on a large scale;

The quality control pass rate has increased from 92% (manual spot checks) to 99.5%, saving an annual rework cost of 150,000 yuan (based on an annual production of 2.4 million units). 

2. Professional players / Enthusiasts: More accurate racket selection, better technical fit

✦ Personalized support:

Professional players measure a racket with "185g in weight and 17.5cm balance point" to match the "fast attack combined with loop" playing style (a head-heavy racket enhances hitting power);

Amateur enthusiasts compare "parameters of the same model used by stars" (such as "Fan Zhendong's racket balance point is 18cm") to choose a racket that is closer to improve their feel (actual feedback shows "a 20% increase in hitting stability"). 

3. Coaches/Clubs: More scientific teaching guidance

✦ Technical assistance:

Coaches recommend that players "practice controlling short balls on the table more" based on the "balance point of the racket being 16 cm from the handle (head light)" (head light rackets are more flexible);

Clubs measure the parameters of players' rackets in batches and group them for training (such as a "head heavy racket group" focusing on offense and a "head light racket group" strengthening control), thereby enhancing the overall technical level. 

Reliability and Maintenance

Structural Durability:

✦ The lifespan of the load cell is ≥1,000,000 times (equivalent to continuous testing for 3 years, with an average of 1,000 tests per day);

✦ The lifespan of the laser distance measurement module is ≥5,000 hours (approximately 200 days of full-load operation).

Easy Maintenance Design:

✦ The device supports "automatic calibration" (verifying weight accuracy with a standard weight at startup each day; an automatic alarm is triggered if the deviation is >0.2g);

✦ Self-diagnostic function (displaying codes such as "sensor abnormal" and "screen failure") to guide quick repairs (average repair time <15 minutes);

✦ The surface of the test stand is made of anti-scratch acrylic board (hardness ≥3H), with a wear-resistant lifespan of ≥50,000 placements.

Operation Process (2-step Quick Measurement)

✦ Place the racket → Align the handle end of the racket with the "red positioning line" on the test stand, and let the head naturally rest against the "elastic limit block" (ensuring the racket is level and not tilted);

✦ Automatic measurement → The device automatically senses the placement of the racket and completes the measurement of "weight-length-balance point" within 3 seconds, with the results displayed on the screen simultaneously (voice announcement is supported);

✦ Data Management (optional) → Scan the code to enter racket information (such as model and user name), and the data is automatically stored; or print a "parameter card" via Bluetooth for retention. 

One-click smart measurement · Three parameters displayed simultaneously - With 3 seconds of precision, the weight, length, and balance of every table tennis racket become "reliable technical language".