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CW
COSO
Product overview
A checkweigher is a type of industrial scale used to automatically check the weight of products as they move along a production line. It ensures that each product meets the required weight specifications, helping manufacturers maintain quality control.
The device works by weighing each item passing through it and comparing the actual weight against pre-set limits. If the weight is within the acceptable range, the item continues down the line; if it is too light or too heavy, it can be rejected for further inspection. This helps in preventing underfilled or overfilled products from reaching consumers, thus ensuring product consistency and compliance with regulations.
What can COSO checkweighers do for you?
1.Customer complaints arising from non-conforming product weight or quantity?
Quality issues such as incorrect product weight, insufficient packing, missing items, or inaccurate weight
classification have led to claims and damage to the reputation of the product.
2.Low efficiency of manual sampling inspection？
Low sampling rate causes delayed defect detection, creating production bottlenecks.
3.Profit leakage due to excessive product packaging?
Undetected over fill in pre-packed goods creats unnecessary costs.
Structure
You might want to know
1. Q：What is the weighing range?
A：1g-10000kg
2. Q：What is the weighing accuracy?
A：Subject to product characteristics and machine model, with accuracy up to ±0.1g
3. Q：What is the achievable conveying speed and parts per minute?
A：Speed:10-90m/min; PPM:≤ 400
4. Q：Can it integrate with existing production lines?
A：The machine's structure and functions can be fully customized to production line characteristics, with compatibility for line integration or MES connectivity.
5. Q：Can the detection data be recorded and output in real time?
A：Product weight, dimensions, qualified items count, unqualified items count, date and other can be recorded
and output in real time.
6. Q：Are the operating and maintenance costs high?
A：Simple to operate, wear parts charged at cost price, core components under 5-year warranty, with lifelong free software updates.
7. Q：Have you worked on similar projects before?
A：COSO serves clients across 200+ specialized industries and has accumulated extensive case experience in diverse sectors.
8. Q：How do i start customization process?
A：Simply submit your requirements via the online dialog box, we'll handle the entire process and monitor every step for you.
Applicable industries
Specification
Basic Parameters of CW Checkweigher
| Model | CW120 | CW150 | CW200 | CW300 | CW400 | CW500 | CW600 | |
| Single Weighing Scope | ≤200g | ≤200g | ≤ 1000g | ≤ 1000g | ≤3000g | ≤ 15kg | ≤40kg | |
| Accuracy | ±0. 1g | ±0.2g~±0.5g | ±0.3g~± 1g | ±0.3g~± 1g | ±0.5g~±2g | ±2g~± 10g | ±5g~±30g | |
| Minimum scale | 0.01g | 0.01g | 0. 1g | 0. 1g | 0. 1g | 1g | 1g | |
| Conveying Speed | 20-60m/min | 20-90m/min | 20～ 90m/min | 20～ 70m/mi | 20～ 50m/min | 20-50m/mi n | 20~5-m/min | |
| Max Speed | 180 pcs/min | 180 pcs/min | 160 pcs/min | 160 pcs/min | 80 pcs/min | 60 pcs/min | 30 pcs/min | |
Products to be weighed | Length | ≤ 100mm | ≤ 150mm | ≤280mm | ≤280mm | ≤300mm | ≤450mm | ≤650mm |
| Width | ≤ 100mm | ≤ 120mm | ≤200mm | ≤250mm | ≤290mm | ≤390mm | ≤490mm | |
Conveyor Belt’s size of Checkweigher | Length | 250mm | 250mm | 400mm | 450mm | 450mm | 620mm | 900mm |
| Width | 120mm | 150mm | 210mm | 250mm | 300mm | 400mm | 500mm | |
| Rated Power | 0. 1KW | 0. 1KW | 0. 15KW | 0. 15KW | 0.4KW | 0.4KW | 0.4KW | |
| Power Supply | AC110V 220V± 10% 50HZ （60HZ） | |||||||
| Operating Panel | Touch Screen | |||||||
| Preset Products’ name | 99 | |||||||
| External Gas Source | 0.6- 1Mpa | |||||||
| Interface of Air Pressure | Φ8mm | |||||||
| Working Environment | Temperature： 0℃～40℃，Humidity: 30%～95% | |||||||
| Material of Machine | SUS304 | |||||||
Note: Models listed in the table are just standard configurations. Our actual production includes numerous variants not exhaustively listed here. For other requirements, please contact customer service for details.
Certification
COSO has been certified by the ISO9001 International Quality Management System. Its products comply with globally recognized standards including CE, FDA, and RoHS, ensuring consistent quality control and on-time delivery throughout manufacturing, production, and final shipment.
Optional rejection system
As our clients' product specifications and production line environments vary, we offer multiple rejection unit configurations to suit diverse needs.
Customizable options
COSO has mature R&D and production capabilities, along with strong customization expertise. Below are the available customization options.
No. | Content | Description |
| 1 | HMI Type | 7-inch or 10-inch touchscreen (optional) |
| 2 | Operating Language | Default: Chinese & English Optional: Russian, Portuguese, Croatian, Spanish, Thai Other languages require client-provided translations for customization |
| 3 | Client Name & Logo | Displayed on the startup interface |
| 4 | Machine Structure | Standard checkweigher includes infeed section, weighing section, and rejection section Modular orders: Weighing section only; infeed + weighing sections; or weighing + rejection sections Rejection mechanisms can also be directly mounted to the weighing section |
| 5 | Rejection Bins | Customized to product dimensions; fixed to the machine body For larger products: Optional roller-type bins (standalone placement) |
| 6 | Machine Size | Standard models: CW120, CW150, CW200, CW300, CW400, CW500, CW600 Custom sizes available based on product specifications and client requirements |
| 7 | Belt-to-Ground Height | Customized to match upstream/downstream production lines Default tolerance: ±30mm; max range: ±50mm |
| 8 | Belt Material | Standard type or food-grade |
| 9 | Rejection System Options | Pusher, push-lever, air-blow, flap, belt-sinking, etc. (selected based on product and line environment) Dual-rejection customization: Separate mechanisms for underweight/overweight products |
| 10 | Weighing Lanes | Default: Single lane Custom: Dual-lane, 5-lane, or dual-layer (upper/lower) configurations |
| 11 | WLAN Interface | Default: USB data transfer Optional: WLAN for real-time data transmission, sharing, and centralized management |
| 12 | MES Integration | Online support available for integrating the weigher into MES systems |
| 13 | Signal Cables | Custom: 24V signal cables output belt start/stop status Reserved control lines for centralized machine shutdown via main switch |
| 14 | Appearance Customization | Standard: Stainless steel frame/control box Optional: Powder-coating in white, blue, gray, etc. |
| 15 | Other Custom Features | Bottle-specific weighers (with clamping devices); roller-type weighers (for 100–1000kg products); separable control panel/weighing platform. |
Cusomization Capability
As a professional detection equipment manufacturer with robust customization capabilities, we can fulfill all your requirements.
Below are some of our cases:
Other links
Company profile
Founded in 2005, Dongguan Coso Electronic Tech Co., Ltd is headquartered in Dongguan, Guangdong, China, a globally renowned manufacturing center. We are a technology-driven enterprise specializing in the R&D and production of foreign object and weight detection equipment.
Adopting a modular design principle, we integrate intelligent detection algorithms and precision manufacturing processes to provide customized solutions, including metal detection & separation, automatic weighing & sorting, and foreign object & defect detection for global manufacturing industries such as food, pharmaceuticals, plastics & rubber, packaging, mining, personal care, textiles, apparel, toys and chemical manufacturing. Our products include industrial metal detectors, metal separators, checkweighers, weight sorting machines, and X-ray inspection systems.
With over 20 years of technological expertise, we have built a fully integrated industrial ecosystem covering R&D, production, sales, and service. We hold ISO9001 certification and possess more than 20 national patents. Our products comply with globally recognized standards (CE, FDA, RoHS) and have been exported to over 90 countries and regions. We have established cooperative relationships with numerous Fortune Global 500 enterprises.
With sales and service centers in both the Pearl River Delta and Yangtze River Delta regions, our distribution network covers the entire country. The company is accelerating its global market expansion by establishing overseas service hubs and localized teams, striving to deliver high-quality products and services to customers worldwide.
Guided by our mission “Make production more efficient, make products more reliable”, we continuously advance detection technology to support the evolution of global intelligent manufacturing through innovation and product development. We are committed to ensuring every product stands the test of the market, aiming to be a worldwide reliable detection equipment manufacturer.
Product overview
A checkweigher is a type of industrial scale used to automatically check the weight of products as they move along a production line. It ensures that each product meets the required weight specifications, helping manufacturers maintain quality control.
The device works by weighing each item passing through it and comparing the actual weight against pre-set limits. If the weight is within the acceptable range, the item continues down the line; if it is too light or too heavy, it can be rejected for further inspection. This helps in preventing underfilled or overfilled products from reaching consumers, thus ensuring product consistency and compliance with regulations.
What can COSO checkweighers do for you?
1.Customer complaints arising from non-conforming product weight or quantity?
Quality issues such as incorrect product weight, insufficient packing, missing items, or inaccurate weight
classification have led to claims and damage to the reputation of the product.
2.Low efficiency of manual sampling inspection？
Low sampling rate causes delayed defect detection, creating production bottlenecks.
3.Profit leakage due to excessive product packaging?
Undetected over fill in pre-packed goods creats unnecessary costs.
Structure
You might want to know
1. Q：What is the weighing range?
A：1g-10000kg
2. Q：What is the weighing accuracy?
A：Subject to product characteristics and machine model, with accuracy up to ±0.1g
3. Q：What is the achievable conveying speed and parts per minute?
A：Speed:10-90m/min; PPM:≤ 400
4. Q：Can it integrate with existing production lines?
A：The machine's structure and functions can be fully customized to production line characteristics, with compatibility for line integration or MES connectivity.
5. Q：Can the detection data be recorded and output in real time?
A：Product weight, dimensions, qualified items count, unqualified items count, date and other can be recorded
and output in real time.
6. Q：Are the operating and maintenance costs high?
A：Simple to operate, wear parts charged at cost price, core components under 5-year warranty, with lifelong free software updates.
7. Q：Have you worked on similar projects before?
A：COSO serves clients across 200+ specialized industries and has accumulated extensive case experience in diverse sectors.
8. Q：How do i start customization process?
A：Simply submit your requirements via the online dialog box, we'll handle the entire process and monitor every step for you.
Applicable industries
Specification
Basic Parameters of CW Checkweigher
| Model | CW120 | CW150 | CW200 | CW300 | CW400 | CW500 | CW600 | |
| Single Weighing Scope | ≤200g | ≤200g | ≤ 1000g | ≤ 1000g | ≤3000g | ≤ 15kg | ≤40kg | |
| Accuracy | ±0. 1g | ±0.2g~±0.5g | ±0.3g~± 1g | ±0.3g~± 1g | ±0.5g~±2g | ±2g~± 10g | ±5g~±30g | |
| Minimum scale | 0.01g | 0.01g | 0. 1g | 0. 1g | 0. 1g | 1g | 1g | |
| Conveying Speed | 20-60m/min | 20-90m/min | 20～ 90m/min | 20～ 70m/mi | 20～ 50m/min | 20-50m/mi n | 20~5-m/min | |
| Max Speed | 180 pcs/min | 180 pcs/min | 160 pcs/min | 160 pcs/min | 80 pcs/min | 60 pcs/min | 30 pcs/min | |
Products to be weighed | Length | ≤ 100mm | ≤ 150mm | ≤280mm | ≤280mm | ≤300mm | ≤450mm | ≤650mm |
| Width | ≤ 100mm | ≤ 120mm | ≤200mm | ≤250mm | ≤290mm | ≤390mm | ≤490mm | |
Conveyor Belt’s size of Checkweigher | Length | 250mm | 250mm | 400mm | 450mm | 450mm | 620mm | 900mm |
| Width | 120mm | 150mm | 210mm | 250mm | 300mm | 400mm | 500mm | |
| Rated Power | 0. 1KW | 0. 1KW | 0. 15KW | 0. 15KW | 0.4KW | 0.4KW | 0.4KW | |
| Power Supply | AC110V 220V± 10% 50HZ （60HZ） | |||||||
| Operating Panel | Touch Screen | |||||||
| Preset Products’ name | 99 | |||||||
| External Gas Source | 0.6- 1Mpa | |||||||
| Interface of Air Pressure | Φ8mm | |||||||
| Working Environment | Temperature： 0℃～40℃，Humidity: 30%～95% | |||||||
| Material of Machine | SUS304 | |||||||
Note: Models listed in the table are just standard configurations. Our actual production includes numerous variants not exhaustively listed here. For other requirements, please contact customer service for details.
Certification
COSO has been certified by the ISO9001 International Quality Management System. Its products comply with globally recognized standards including CE, FDA, and RoHS, ensuring consistent quality control and on-time delivery throughout manufacturing, production, and final shipment.
Optional rejection system
As our clients' product specifications and production line environments vary, we offer multiple rejection unit configurations to suit diverse needs.
Customizable options
COSO has mature R&D and production capabilities, along with strong customization expertise. Below are the available customization options.
No. | Content | Description |
| 1 | HMI Type | 7-inch or 10-inch touchscreen (optional) |
| 2 | Operating Language | Default: Chinese & English Optional: Russian, Portuguese, Croatian, Spanish, Thai Other languages require client-provided translations for customization |
| 3 | Client Name & Logo | Displayed on the startup interface |
| 4 | Machine Structure | Standard checkweigher includes infeed section, weighing section, and rejection section Modular orders: Weighing section only; infeed + weighing sections; or weighing + rejection sections Rejection mechanisms can also be directly mounted to the weighing section |
| 5 | Rejection Bins | Customized to product dimensions; fixed to the machine body For larger products: Optional roller-type bins (standalone placement) |
| 6 | Machine Size | Standard models: CW120, CW150, CW200, CW300, CW400, CW500, CW600 Custom sizes available based on product specifications and client requirements |
| 7 | Belt-to-Ground Height | Customized to match upstream/downstream production lines Default tolerance: ±30mm; max range: ±50mm |
| 8 | Belt Material | Standard type or food-grade |
| 9 | Rejection System Options | Pusher, push-lever, air-blow, flap, belt-sinking, etc. (selected based on product and line environment) Dual-rejection customization: Separate mechanisms for underweight/overweight products |
| 10 | Weighing Lanes | Default: Single lane Custom: Dual-lane, 5-lane, or dual-layer (upper/lower) configurations |
| 11 | WLAN Interface | Default: USB data transfer Optional: WLAN for real-time data transmission, sharing, and centralized management |
| 12 | MES Integration | Online support available for integrating the weigher into MES systems |
| 13 | Signal Cables | Custom: 24V signal cables output belt start/stop status Reserved control lines for centralized machine shutdown via main switch |
| 14 | Appearance Customization | Standard: Stainless steel frame/control box Optional: Powder-coating in white, blue, gray, etc. |
| 15 | Other Custom Features | Bottle-specific weighers (with clamping devices); roller-type weighers (for 100–1000kg products); separable control panel/weighing platform. |
Cusomization Capability
As a professional detection equipment manufacturer with robust customization capabilities, we can fulfill all your requirements.
Below are some of our cases:
Other links
Company profile
Founded in 2005, Dongguan Coso Electronic Tech Co., Ltd is headquartered in Dongguan, Guangdong, China, a globally renowned manufacturing center. We are a technology-driven enterprise specializing in the R&D and production of foreign object and weight detection equipment.
Adopting a modular design principle, we integrate intelligent detection algorithms and precision manufacturing processes to provide customized solutions, including metal detection & separation, automatic weighing & sorting, and foreign object & defect detection for global manufacturing industries such as food, pharmaceuticals, plastics & rubber, packaging, mining, personal care, textiles, apparel, toys and chemical manufacturing. Our products include industrial metal detectors, metal separators, checkweighers, weight sorting machines, and X-ray inspection systems.
With over 20 years of technological expertise, we have built a fully integrated industrial ecosystem covering R&D, production, sales, and service. We hold ISO9001 certification and possess more than 20 national patents. Our products comply with globally recognized standards (CE, FDA, RoHS) and have been exported to over 90 countries and regions. We have established cooperative relationships with numerous Fortune Global 500 enterprises.
With sales and service centers in both the Pearl River Delta and Yangtze River Delta regions, our distribution network covers the entire country. The company is accelerating its global market expansion by establishing overseas service hubs and localized teams, striving to deliver high-quality products and services to customers worldwide.
Guided by our mission “Make production more efficient, make products more reliable”, we continuously advance detection technology to support the evolution of global intelligent manufacturing through innovation and product development. We are committed to ensuring every product stands the test of the market, aiming to be a worldwide reliable detection equipment manufacturer.
