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Shanghai Zhigan Industrial Co., Ltd
Take 5-500g all inclusive! SG-150 Medium Weighing Scale: A New Tool for Flexible Quality Control
Date: 2025-12-29Read: 3
Take 5-500g all inclusive! SG-150Medium scale weighing scaleNew tool for flexible quality control
50g hand cream replacement takes 10 minutes, glass bottle damage rate is 5%, annual damage is 100000, and 3 weight inspection machines occupy the workshop. In the fields of daily chemical, food packaging, and small equipment, the quality control of medium-sized products weighing 5-500g is always hindered by "slow replacement, high damage, and difficult adaptation to multiple machines". Traditional equipment either has a fragmented range or insufficient compliance, which has become an obstacle to improving the quality of enterprises.
Launched by Shanghai Practical ActionSG-150 MediumOnline weighing scaleWith the core of "5-500g full range+0.1g accuracy+double elimination non-destructive", combined with SUS304 body and 7-inch touch screen, a single machine can replace 3 dedicated machines, directly reducing costs by 60%. It is the preferred equipment for flexible quality control of medium-sized products.
1、 Core parameter analysis: Accurately matching the requirements of medium-sized product scenarios
The parameters of SG-150 have been optimized for thousands of operating conditions, and each item points to a pain point for resolution. The corresponding parameters and values are as follows:
| category | parameter name | Technical Specifications | Core scenario value |
| basic performance | Sorting range | 5-500g | Covering 5g small bags of seasoning to 500g nut gift box, replacing 3 dedicated machines with 1 set, reducing equipment investment by 60% |
| graduation value | 0.1g | Dynamic accuracy ± 0.2g, meeting net content compliance requirements, avoiding complaints and regulatory penalties for "missing weight" | |
| Sorting speed | 100 pieces/minute (depending on the product) | Matched with high-speed packaging line, daily inspection of 12000 pieces, efficiency increased by 10 times compared to manual sampling | |
| Product adaptation | Product restrictions | Suitable for medium-sized/irregular products such as hand cream, chicken essence, and equipment accessories, without the need for customized fixtures, with full compatibility | |
| Operation configuration | Operation mode/interface | Touch operation/7-inch touch screen | Anti oil touch precision, bilingual switching between Chinese and English, beginners can get started in 1 hour, reducing operation error rate by 80% |
| Remove system | Exclusion method | Pushing board removal/air blowing removal (dual mode) | Push board compatible with hard products (accuracy ≥ 99.8%), air blown compatible with fragile products (damage rate ≤ 0.3%), saving 80000 yuan in annual losses+ |
| mechanical structure | Belt ground clearance height | 750 ± 50mm (customizable) | Seamless integration with existing production lines, no need to modify height, installation cycle shortened by 70% |
| Machine structure/tabletop | Stainless steel (SUS304)/316mm × 150mm | Tolerant to alcohol disinfection and compliant with SC/GMP standards; Anti slip tabletop prevents product deviation and reduces detection error by 80% | |
| Energy consumption/foundation | Power | 220V 50-60Hz/approximately 100W | Single phase electricity is universal, with an annual power consumption of only 876 kWh, saving 30% energy compared to traditional equipment and saving over 800 yuan in annual electricity bills |
| Equipment weight | About 60KG | Lightweight design, 2 people can transport, workshop relocation installation can be completed in 2 hours | |
| Extended features | Optional features | Tri color alarm light, RS485 port, exclusion box | Unqualified product sound and light warning, data directly connected to MES system, meeting the needs of quality traceability and intelligent factory docking |
2、 Core System Architecture: Technical Barrier for Flexible Quality Control
The competitiveness of SG-150 lies in the collaborative optimization of three major modules, which accurately solves the pain points of medium-sized product detection:
2.1 Full range anti-interference weighing module: stable support with 0.1g accuracy
Equipped with a high-precision strain gauge sensor with a rated load of 1000g (division value of 0.1g), fixed to SUS304 elastomer by vacuum laser welding, the overload resistance is increased by 50%, and it can withstand continuous impact of 500g products without attenuation. The sensor adopts IP65 fully sealed packaging, which isolates moisture from daily chemicals and food moisture, and has a service life of up to 3 years (20% longer than the industry).
Equipped with a 24 bit AD converter and 300Hz high-frequency sampling, combined with the "10-50Hz adaptive filtering algorithm" to establish an interference library for common vibration frequencies of packaging machines and conveyor belts, real-time error compensation, and stable dynamic detection accuracy within ± 0.2g. A seasoning factory tested 500 pieces of 100g chicken essence continuously, with an accuracy fluctuation of ≤ 0.1g, far exceeding the national standard requirements.
2.2 Flexible intelligent control module: the core of 3-minute rapid production change
7-inch touch screen equipped with industrial grade processor, built-in50 sets of product parameter repositoryWhen switching between the "50g hand cream -300g laundry detergent -500g nut gift box", 12 parameters such as weight threshold, removal mode, and conveying speed can be easily adjusted with just one click, reducing the production time from the traditional 10 minutes to within 3 minutes. After being applied by a certain daily chemical enterprise, the utilization rate of the production line increased from 75% to 94%, and the daily production capacity increased by 1200 pieces.
Supports storing 50000 pieces of data, recording the weight, time, and operator information of each product, exporting Excel traceability reports via USB, and matching SC/GMP's "source traceable" requirements. The optional RS485 port can be directly connected to the MES system, achieving a digital closed-loop of "production detection traceability".
2.3 Dual mode Elimination Module: Non destructive Adaptation of Multi material Products
Innovative integration of "push board+air blowing" dual removal mechanism, one click switching to adapt to different materials:
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Push board removalThrust of 150N, equipped with silicone buffer pad, suitable for 200-500g hard products (soap, instrument accessories), with a rejection accuracy rate of ≥ 99.8% and a false rejection rate of<0.05%;
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Air blowing removalAdjustable pressure of 0.4-0.7MPa, non-contact push of 5-200g fragile items (glass bottles, flexible packaging), with a damage rate reduced from traditional 5% to 0.3%, saving an annual loss cost of 80000 yuan.
3、 Standardized installation and debugging: 48 hour quick production guide
The SG-100 adopts a modular design and is equipped with process oriented steps to reduce the landing threshold
3.1 Installation environment requirements
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Venue: Ground flatness ≤ 0.3mm/m, avoiding strong electromagnetic interference (such as frequency converters);
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Power supply: 220V independent power supply, grounding resistance ≤ 4 Ω, equipped with a 500W voltage regulator in areas with large voltage fluctuations;
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Gas path (air blowing mode): 0.5-0.7MPa clean gas source, equipped with a 5 μ m oil-water separator.
3.2 Debugging process (48 hour closed-loop)
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Horizontal calibration (40 minutes)Adjust the foot with a 0.02mm/m level to ensure that the levelness of the tabletop is ≤ 0.2mm/m (horizontal deviation directly affects the accuracy of 0.1g);
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Mechanical inspection (30 minutes)Manually rotate the conveyor belt 3 times without any jamming, test the double removal mechanism 10 times each, and confirm that the air blowing nozzle is not blocked;
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Electrical self check (20 minutes)Power on self-test for 30 seconds, confirm that the sensor and touch screen display "normal" and there are no codes such as "E01 sensor abnormal";
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Four point calibration (90 minutes)Calibrate with standard weights of 5g, 100g, 300g, and 500g, and the system will automatically generate calibration curves;
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Load test (2 hours)100 standard parts can be continuously tested with an accuracy of ± 0.2g and a rejection accuracy of ≥ 99.8% before production.
4、 Industry Implementation Case: Quantitative Verification of Technological Value
SG-150 has been implemented in over 50 enterprises and has shown significant results in actual testing
4.1 Daily chemical industry: efficiency revolution of multi category mixed production
[Customer pain points] A certain daily chemical factory produces 50g hand cream and 300g shampoo, but the replacement of three dedicated machines is slow, and the glass bottle damage rate is 5%, with an annual loss of 100000 yuan;
【 Scheme 】 SG-150 dual elimination mode+50 sets of parameter storage+IP65 moisture-proof;
[Effect] Replacing 3 machines with a single one reduces equipment investment by 60%; 3 minutes of production change, the utilization rate of the production line increased by 19%; The damage rate has decreased to 0.2%, resulting in an annual loss of 80000 yuan.
4.2 Food Packaging Industry: Risk Control Core for Net Content Compliance
Customer pain points: A seasoning factory produces 100g soy sauce and 400g hot pot base, but the original equipment has insufficient accuracy, resulting in a complaint rate of 1.5%, and the cleaning time is 30 minutes;
【 Scheme 】 SG-150 0.1g precision+food grade easy to clean countertop+data traceability;
【 Effect 】 The complaint rate has been reduced to 0.1%, and the cleaning time has been shortened to 10 minutes; Matching the production line at a speed of 100 pieces per minute, the pass rate increased from 98.3% to 99.8%.
4.3 Small equipment industry: dual guarantee of GMP compliance and non-destructive testing
[Customer Pain Point] A rehabilitation equipment factory tested 100g of accessories and 500g of protective gear, requiring GMP traceability. Traditional mechanical removal caused damage to metal parts;
【 Plan 】 SG-150 push board removal (silicone buffer)+data storage+sealed structure;
【 Effect 】 Successfully passed GMP audit; Metal parts are undamaged, with a pass rate of 99.9% and a 50% reduction in after-sales rework damage; The MTBF of the equipment reaches 8000 hours.
5、 Hierarchical operation and maintenance system: guarantee of extending equipment life to 5 years
SG-150 adopts "daily weekly monthly" hierarchical maintenance, with a failure rate controlled within 0.5%:
| maintenance level | core content | cycle | division of responsibilities |
| daily | Clean conveyor belt/body, air drainage, zero calibration | Once per class | operator |
| weekly | Clean the sensor, check and remove the wear of the mechanism, and calibrate the weights accurately | once a week | Device Administrator |
| monthly | Full range calibration, air/circuit inspection, oil injection for push plate guide rail | once a month | Technical personnel |
Quick troubleshooting of common faults
| fault phenomenon | Possible reasons | solution |
| Large precision deviation | Uneven tabletop and sensor dust accumulation | Re calibrate the level cleaning sensor and recalibrate it |
| Remove no action | Air blowing mode: insufficient air source; Push plate mode: cylinder failure | Check the pressure ≥ 0.5MPa and check the cylinder circuit |
| Conveyor belt deviation | The tabletop is not level, and there are foreign objects on the drum | Calibration level cleaning drum adjustment conveyor belt tension bolt |
6、 Practical weighing scale full matrix: one-stop coverage of all scenarios
SG-150 (Medium) can be linked with other models to meet the full range quality control requirements:
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SG-100 miniature weighing scale(2-300g): Suitable for small products such as chips and capsules;
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SG-300 high-speed weighing scale(5-3000g): Matching with medium and large packaging high-speed production lines;
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SG-600 Heavy duty Inspection Scale(30-50kg): Covering heavy machinery and building materials testing.
7、 Full cycle service guarantee
Shanghai Practical provides "customized+fast response" services for SG-150 users:
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Pre sales: 1-on-1 engineer on-site survey, customized belt height and air interface solution;
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In sales: 48 hours of installation and debugging+operation training, issuance of Equipment Acceptance Report;
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After sales: The whole machine is guaranteed for 12 months, the core components (sensors/touch screens) are extended for 24 months, and the 8 major service centers across the country respond within 48 hours;
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Value added: Quarterly on-site inspections and free software upgrades (algorithm optimization, new features added).
Conclusion
The SG-150 medium-sized weighing scale accurately solves the pain points of "poor adaptation, high damage, and slow replacement" in the quality control of medium-sized products with "5-500g full range, double elimination non-destructive, and 3-minute replacement". Relying on practical full matrix products and full cycle services, it is not only the core equipment of current flexible quality control, but also able to adapt to the upgrading of smart factories to help daily chemical, food, and equipment enterprises improve quality and reduce costs, promoting the industry to move towards "flexibility and precision".
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