| Availability: | |
|---|---|
| Quantity: | |
CW
COSO
Product Description
Weigh sorting machine is also called as dynamic checkweigher, weight testing machine,weight sorter, online weighing scale. Checkweigher is automatic device that used to check the product’s weight in automatic packing production line, and it can check unqualified products in a continuous working process whose weight doesn’t accord with the standard weight we test. Also, the checkweigher can automatically sort products.
The machine is suitable for checking single weight accords with standard, especially suitable for electronic, pharmaceutical,food, beverage, health&care products, daily chemical, light industry, agricultural and sideline products industry etc. In daily chemical industry, it can be used in cosmetics (beauty cosmetics, cleaning , skin care, hair cosmetics products, etc.) ;cleaning products (soap, washing powder, detergent,etc.) ;dental products (toothpaste, mouthwash, etc.) and other chemical products (shoe polish, floor wax, deodorant, insect repellent, etc.).
Main Functions
1. Report function: built-in report statistics, the report can generate EXCEL format, can automatically generate a variety of real-time data reports, U disk can store more than 1 year statistical data (need to be required), at any time hold grip production status;
2. Interface: reserved standard interface, convenient for data management, can connect communication network with PC and other intelligent devices;
3. Achieve centralized control: can achieve centralized control of a computer/ man-machine interface operates may check weight;
4. Parameter recovery function:possessing the factory parameter setting recovery function.
Product Feature
1. Versatility: Standardized machine structure and standardized man-machine interface can complete the weighing of various materials;
2. Easy to replace: can store a variety of formulations, convenient for the replacement of products specifications;
3. Simple to operation: the use of Weilen color man-machine interface, the whole intelligent, user-friendly design;
4. Easy to maintain: the conveyor belt is easy to disassemble, easy to install, maintain and clean;
5. Adjustable speed: adopt variable frequency control motor, speed can be adjusted according to needs;
6. High-speed, high-precision: adopt the high-precision digital sensors;
7. Zero tracking: can be manually or automatically cleared, and dynamic zero tracking;
8. Can combine with metal detector, X ray machine, code machine, automatic scanner, automatic sealing machine.
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

Product Specification
| Model | CW-G 150 | CW-150 | CW-200 | CW-300 | CW-400 | CW-500 | CW-600 | |
Single Weighing Scope | ≤20g | ≤200g | ≤1000g | ≤3000g | ≤20kg | ≤40kg | ≤40kg | |
Accuracy | ±0.1g | ±0.2g ~±0.5g | ±0.3g~1g | ±0.5g~±3g | ±0.1g~±0.5g | ±5g~±20g | ±5g~±20g | |
Minimum Scale | 0.01g | 0.1g | 0.1g | 0.1g | 1g | 1g | 1g | |
Conveying Speed | ≤30m/min | 40~70m/min | 60~90m/min | 60~90m/min | 30~60m/min | 25~50m/min | 25~50m/min | |
Max Speed | 100 pcs/min | 200 pcs/min | 160 pcs/min | 80 pcs/min | 60 pcs/min | 40 pcs/min | 35 pcs/min | |
Products to be weighed | Length | ≤50mm | ≤150mm | ≤300mm | ≤300mm | ≤500mm | ≤650mm | ≤650mm |
Width | ≤50mm | ≤120mm | ≤180mm | ≤270mm | ≤350mm | ≤440mm | ≤530mm | |
Conveyor Belt's size of Checkweigher | Length | 200mm/300mm | 200mm/300mm | 400mm | 450mm | 620mm | 1075mm | 1200mm |
Width | 150mm | 150mm | 210mm | 300mm | 400mm | 490mm | 600mm | |
Rated Power | 0.1KW | 0.1KW | 0.15KW | 0.4KW | 0.4KW | 0.4KW | 0.4KW | |
Power Supply | AC220V±10% 50HZ (60HZ) | |||||||
Rejection | Air Blowing/Push Lever/Swing Arm | |||||||
Controlling System | High Speed A/D Sample Controller | |||||||
Operating Panel | Touch Screen | |||||||
Preset Products's Name | 99 | |||||||
Operating Direction | Facing machine, from Left to Right | |||||||
External Gas Source | 0.6-1Mpa | |||||||
Interface of Air Pressure | φ8mm | |||||||
Working Environment | Temperature: 0℃ ~40℃, Humidity: 30%~95% | |||||||
Material of Machine | SUS304 | |||||||
Note:
1. The detection sensitivity is the test result obtained by the material blocks falling freely through the detection pipeline. The actual sensitivity may be different accordingly to the characteristics of the tested products or the working environment, it should be based on the actual detection sensitivity.
2. Models listed in the tableare just standard configurations. Our actual production includes numerous variants not exhaustively listed here. For other requirements, please contact customer service for details.
Certificaiton

Cutomizable 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. |
Optional rejection system
As our clients' product specifications and production line environments vary, we offer multiple rejection unit configurations to suit diverse needs.






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 Description
Weigh sorting machine is also called as dynamic checkweigher, weight testing machine,weight sorter, online weighing scale. Checkweigher is automatic device that used to check the product’s weight in automatic packing production line, and it can check unqualified products in a continuous working process whose weight doesn’t accord with the standard weight we test. Also, the checkweigher can automatically sort products.
The machine is suitable for checking single weight accords with standard, especially suitable for electronic, pharmaceutical,food, beverage, health&care products, daily chemical, light industry, agricultural and sideline products industry etc. In daily chemical industry, it can be used in cosmetics (beauty cosmetics, cleaning , skin care, hair cosmetics products, etc.) ;cleaning products (soap, washing powder, detergent,etc.) ;dental products (toothpaste, mouthwash, etc.) and other chemical products (shoe polish, floor wax, deodorant, insect repellent, etc.).
Main Functions
1. Report function: built-in report statistics, the report can generate EXCEL format, can automatically generate a variety of real-time data reports, U disk can store more than 1 year statistical data (need to be required), at any time hold grip production status;
2. Interface: reserved standard interface, convenient for data management, can connect communication network with PC and other intelligent devices;
3. Achieve centralized control: can achieve centralized control of a computer/ man-machine interface operates may check weight;
4. Parameter recovery function:possessing the factory parameter setting recovery function.
Product Feature
1. Versatility: Standardized machine structure and standardized man-machine interface can complete the weighing of various materials;
2. Easy to replace: can store a variety of formulations, convenient for the replacement of products specifications;
3. Simple to operation: the use of Weilen color man-machine interface, the whole intelligent, user-friendly design;
4. Easy to maintain: the conveyor belt is easy to disassemble, easy to install, maintain and clean;
5. Adjustable speed: adopt variable frequency control motor, speed can be adjusted according to needs;
6. High-speed, high-precision: adopt the high-precision digital sensors;
7. Zero tracking: can be manually or automatically cleared, and dynamic zero tracking;
8. Can combine with metal detector, X ray machine, code machine, automatic scanner, automatic sealing machine.
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

Product Specification
| Model | CW-G 150 | CW-150 | CW-200 | CW-300 | CW-400 | CW-500 | CW-600 | |
Single Weighing Scope | ≤20g | ≤200g | ≤1000g | ≤3000g | ≤20kg | ≤40kg | ≤40kg | |
Accuracy | ±0.1g | ±0.2g ~±0.5g | ±0.3g~1g | ±0.5g~±3g | ±0.1g~±0.5g | ±5g~±20g | ±5g~±20g | |
Minimum Scale | 0.01g | 0.1g | 0.1g | 0.1g | 1g | 1g | 1g | |
Conveying Speed | ≤30m/min | 40~70m/min | 60~90m/min | 60~90m/min | 30~60m/min | 25~50m/min | 25~50m/min | |
Max Speed | 100 pcs/min | 200 pcs/min | 160 pcs/min | 80 pcs/min | 60 pcs/min | 40 pcs/min | 35 pcs/min | |
Products to be weighed | Length | ≤50mm | ≤150mm | ≤300mm | ≤300mm | ≤500mm | ≤650mm | ≤650mm |
Width | ≤50mm | ≤120mm | ≤180mm | ≤270mm | ≤350mm | ≤440mm | ≤530mm | |
Conveyor Belt's size of Checkweigher | Length | 200mm/300mm | 200mm/300mm | 400mm | 450mm | 620mm | 1075mm | 1200mm |
Width | 150mm | 150mm | 210mm | 300mm | 400mm | 490mm | 600mm | |
Rated Power | 0.1KW | 0.1KW | 0.15KW | 0.4KW | 0.4KW | 0.4KW | 0.4KW | |
Power Supply | AC220V±10% 50HZ (60HZ) | |||||||
Rejection | Air Blowing/Push Lever/Swing Arm | |||||||
Controlling System | High Speed A/D Sample Controller | |||||||
Operating Panel | Touch Screen | |||||||
Preset Products's Name | 99 | |||||||
Operating Direction | Facing machine, from Left to Right | |||||||
External Gas Source | 0.6-1Mpa | |||||||
Interface of Air Pressure | φ8mm | |||||||
Working Environment | Temperature: 0℃ ~40℃, Humidity: 30%~95% | |||||||
Material of Machine | SUS304 | |||||||
Note:
1. The detection sensitivity is the test result obtained by the material blocks falling freely through the detection pipeline. The actual sensitivity may be different accordingly to the characteristics of the tested products or the working environment, it should be based on the actual detection sensitivity.
2. Models listed in the tableare just standard configurations. Our actual production includes numerous variants not exhaustively listed here. For other requirements, please contact customer service for details.
Certificaiton

Cutomizable 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. |
Optional rejection system
As our clients' product specifications and production line environments vary, we offer multiple rejection unit configurations to suit diverse needs.






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.
