“Checkweighing Simplified”
Checkweigher System Japanese Technology
- Incredible precision with new digital load cell and ultra-high speed Digital Signal Processing (DSP)
- Modular design minimizes set-up and maintenance time
- Complete suite of I/O options to collect production data and expand system capabilities
- Minimize product giveaway, reduce production costs, and maximize investment return.


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Avoiding costly fines and order rejects | ![]() |
Product filling machine feedback |
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100% product inspection | ![]() |
Avoid additional labor costs & reduce false rejects |
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Produce more packages with materials saved | ![]() |
Improve efficiency in your process |

Unique modular design
AD-4961 consists of four units: an infeed conveyor unit,
a weighing conveyor unit, a control unit and a base unit, allowing fast and simple assembly.
a weighing conveyor unit, a control unit and a base unit, allowing fast and simple assembly.

Image import from USB
Product images can be quickly uploaded to the checkweigher from a USB flash drive, making product identification and upload fast and simple.

Best-in-class precision
With a newly developed digital load cell and an ultra-high speed processing module, high level precision of 0.08 g been realized.

Lightweight and compact design
With it’s modular structure, the AD-4961 allows for rapid and simple installation or relocation.

7 inch color touch panel
The display utilizes a high visibility touch panel color LCD with friendly Graphic User Interface (audio guidance support function included).

Optimization of weighing configuration
By inputting throughput (products per minute) or belt speed (m.min), optimal weighing conditions can be automatically set.

Stores up to 1000 products
Products can be divided into 10 different groups with up to 100 products able to be recorded within each group.

IP65
Protected from dust and water to IP65 standards. Our hygenic design is complemented by standard food grade belting.
Models | AD-4961-2KD-2035Checkweigher with flipper, drop, or air rejector | AD-4961-6K-3050Checkweigher with pusher rejector | AD-4961-600-1224Checkweigher with pusher rejector |
Capacity | 500 g / 2,000 g | 6,000 g | 600 g |
Resolution | 0.01 g / 0.1 g | 0.1 g | 0.01 g |
Accuracy | 0.08 g / 0.18 g | 1.0 g | 0.08 g |
Maximum Throughput | 320 pcs / min | 145 pcs / min | 400pcs / min |
Conveyor Belt Width | 200 mm | 7.8 in | 300 mm | 11.8 in | 120mm |
Conveyor Length | 350 mm | 13.7 in | 500 mm | 19.6 in | 360mm for infeed and 240mm for weighing |
Transport Medium | Urethane belt | ||
Conveyor Belt Speed | 15 ~ 120 m / min | 49 ~ 393 ft / min | 10 ~ 80 m / min | 32.8 ~ 262.4 ft / min | 15-120m / min |
Maximum Product Dimension |
Length 30 ~ 300 mm Length 1 ~ 11.8 in |
Length 80 ~ 450 mm Length 3.1 ~ 17.7 in |
Length 22 ~ 200 mm |
Weighing Sensor | Strain gauge load cell | ||
Display | 7 inch touch color panel display (WVGA) | ||
Operation Method | Touch panel (resistive film type), operation buttons | ||
Number of Recorded Items | 1,000 items (10 groups x 100 items) | ||
Communication Functions | Modbus TCP / Modbus RTU / RS-232C/ 485 (selectable) / TCP/IP (PostScript Printer) / USB (for PostScript printer, USB memory, data storage, image import use) | ||
External Input | Non-voltage contact input 4 points | ||
External Output | Relay output 8 points | ||
Dust / Water Resistance Specifications | IP65 | ||
Operation Temperature / Humidity Range |
-5 ~ 40° / 23 ~ 104°F humidity below 85% (with no condensation) | ||
Power Supply | Single phase AC100 V – 240 V (+10% / -15%), 50 / 60 Hz 180 VA |
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External Dimension |
Length: 700 mm Length: 27.5 in |
Length: 700 mm Length: 660 mm |
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Weight | Approx. 35 kg / 86 lbs | ||
Material | Display: ABS resin Conveyor unit: Aluminum (alumite coating) and PP resin Control box: Stainless steel Base unit: Stainless steal |
Products:
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Industries:
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Easy Maintenance

Motor replacement can be done in under 5 minutes with no prior engineering experience.

Conveyor decks are easy to unlatch and remove making belt replacement a breeze.

The Direct Gear Drive Mechanism allows you to replace a conveyor simply and easily.

Stainless steel construction and hygenic design make this system washdown ready.
Connectivity

Modbus Communication
Commands such as stopping and starting belts, collecting data and changing the product can all be set from an external device.

Data Summary
Various summary data such as Histograms (frequency of defects), X charts, R charts, total summaries available.

History Function
The history of configuration changes can be recorded and displayed.

Various Inputs/ Outputs
Rejector output, alarm output, metal detector input, RS-232C, TCP/IP and USB interface are equipped as standards.

Print Graphs
Reports and charts can be output to a PostScript printer via Ethernet.