AUTOMATIC CHECKWEIGHERS
Automatic Checkweighers
Automatic inline checkweighers inspect every package, with optional rejection systems for underweight and overweight products. Compare CW600 and CZ150 for food, beverage, pharmaceutical, chemical and hardware packaging lines.
- 2 inline checkweigher models
- Up to 200 pcs/min · ±0.5 g accuracy
- Optional automatic rejection
01 / OVERVIEW
Automatic Checkweighers for Inline Weight Inspection
GRAND automatic checkweighers inspect package weight inline to support quality control on production and packaging lines. Optional rejection systems separate underweight and overweight products. Select a model for your package weight, dimensions and target line speed.
High Precision
CW600
±0.5 g accuracy and up to 200 products per minute, with a 600 g maximum capacity.
Compact Inline
CZ150
60–100 products per minute, 500 g capacity and 100 product presets.
Auto Rejection
Swing arm · Air jet · Pusher · Flapper
Optional rejection systems remove underweight and overweight packs from the line.
Planning a full line? Place a checkweigher after cartoning or overwrapping and before case packing, so only on-weight packs go into shipping cases.
02 / CHECKWEIGHER MODELS
Choose Your Checkweigher
Two GRAND inline checkweighers — the high-precision CW600 and the compact CZ150. Each is configured to your package weight, size and line speed.
CW600
High-precision checkweigher, up to 200 pcs/min, ±0.5 g
CZ150
Inline checkweigher, 60–100 pcs/min, 500 g, 100 presets
NOT SURE WHICH MODEL?
Get a Checkweigher Recommendation
Share your package weight range, dimensions and target line speed. We will help you choose a checkweigher and suitable optional rejection system.
CW600 AUTOMATIC CHECKWEIGHER
CW600 at a Glance
A high-precision inline checkweigher for food, beverage, chemical and hardware lines — here is what each part does.
Signal Light
Three-color tower light for clear line status at a glance.
10-inch Touchscreen
Color touchscreen for product setup and monitoring.
Guide Rails
Adjustable stainless steel rails keep different product sizes aligned.
Conveyor Height
750 ± 50 mm conveyor height on adjustable feet.
Weighing Conveyor
300 × 250 mm white PU belt, 5–60 m/min, under a transparent cover.
Frame
Carbon steel or 304 stainless steel construction.
Rejection System
Optional swing arm, air jet or pusher removes off-weight products.
Protection
IP54 standard, IP65 optional; 0–40 °C operating range.
Best weighing accuracy
Display resolution
Max. inspection speed
Max. weighing capacity
CZ150 AUTOMATIC CHECKWEIGHER
CZ150 Inline Weight Inspection
Underweight and overweight detection on automated packaging lines — for food, pharmaceutical, chemical and other packaged products.
Accurate Weighing
Detects underweight and overweight products inline, before they leave your packaging line.
- SUS304 stainless steel frame
- Hard-anodized aerospace aluminum weighing platform
Max. weighing capacity
Minimum scale division
Fast Detection
Inspects 60–100 products per minute with adjustable conveyor speed.
- Product length 0–200 mm
- Product width 0–150 mm
Auto Rejection
Optional rejection systems remove nonconforming products automatically.
- Pusher, air blast, flapper or drop-down
- Selected to suit your product
Easy Operation
Color touchscreen HMI with 100 product presets for quick changeovers.
- Touchscreen control
- Conveyor height 750 ± 50 mm, customizable
>_ Specifications
Model: CZ150
Inspection speed: 60–100 pcs/min
Max. capacity: 500 g
Min. scale division: 0.1 g
Product length: 0–200 mm
Product width: 0–150 mm
Product height: above 1 mm
Conveyor height: 750 ± 50 mm
Operation: touchscreen HMI
Rejection: pusher / air blast / flapper / drop-down
Frame: SUS304 stainless steel
Power: 220 V, 50–60 Hz
03 / INTEGRATED SYSTEMS
Checkweighing Inside a Complete Packaging Line
A checkweigher works best when it is planned with the machines around it. GRAND connects cartoning, overwrapping, checkweighing, case packing and palletizing into one coordinated workflow, with one supplier responsible for the interfaces.
Concept schematic — the actual line configuration varies by project.
Cartoning
Overwrapping
Checkweighing
Case Packing
Palletizing
04 / RELATED EQUIPMENT
Complete Your Packaging Line
Machines that work before and after your checkweigher — from cartoning and overwrapping to case packing and palletizing.
05 / APPLICATIONS
Checkweigher Applications by Industry
From food and beverage packs to pharmaceutical, chemical and hardware products — every package is weighed inline before it moves on.
Food Products
Inline checkweighers for snack packs, boxed food and other packaged foods detect underweight and overweight products before case packing.
Beverages
Packaged beverage products weighed inline on the CW600, at up to 200 products per minute.
Pharmaceuticals
Boxed medicines and pharmaceutical packs weighed inline to support consistent pack contents.
Chemical & Household
Packaged chemical and household products, with optional automatic rejection of off-weight packs.
Hardware
Boxed and bagged hardware parts checked against a target weight on the CW600.
Packaged Goods
Other packaged products up to 600 g, weighed inline before they are packed into shipping cases.
FAQ / CHECKWEIGHING & INSPECTION
Checkweigher FAQs
Answers to common questions about weighing range, accuracy, speed, presets, and rejection on automatic checkweighers.
What does an automatic checkweigher do?
A checkweigher weighs each package inline and identifies underweight or overweight products, supporting quality control on automated production and packaging lines.
What weight range can be checked?
The CZ150 lists a maximum weighing capacity of 500 g with a 0.1 g scale division, and the CW600 lists a maximum of 600 g. Choose a model based on your package weight range.
How accurate is the weighing?
The CW600 lists an accuracy of ±0.5 g. Actual accuracy depends on product weight, line speed, conveyor setup, and environmental factors such as vibration and airflow, so testing with your packages is recommended.
How many products per minute can be inspected?
The CZ150 lists 60–100 products per minute, and the CW600 lists up to 200 products per minute. Actual speed depends on package size and spacing on the conveyor.
What happens to products outside the weight range?
Both models support optional rejection systems to remove out-of-range packages from the line. The suitable rejection method depends on the package type and line speed.
Can one checkweigher handle several products?
Yes. The CZ150, for example, stores up to 100 product presets and offers adjustable conveyor speed, so different products can be selected without re-entering settings.
Do you offer metal detection or vision inspection?
Our current checkweighers focus on weight inspection. If you also need metal detection or vision inspection, describe your requirements so suitable options can be discussed.
GET IN TOUCH
Get Your Checkweigher Quote
Share your package weight range, dimensions, target line speed and required accuracy. We will recommend a suitable automatic checkweigher and discuss optional rejection systems.
- Weight range and accuracy review
- Line speed and rejection options
- Project-specific quotation