Description

The KOKUSAI BALEXT-SMP 1 is a high-performance batch weighing and dosing controller developed by Kokusai Electric(formerly part of Tokyo Electron Group)for precision material handling in process automation.Designed for integration into bagging,filling,blending,and batching systems,it processes signals from load cells to control multi-stage filling operations with exceptional speed and accuracy.

This compact,DIN-rail mountable unit combines real-time weight acquisition,programmable logic,and robust industrial I/O—making it ideal for applications requiring repeatable,high-throughput dispensing of powders,granules,pellets,or liquids in food,chemical,pharmaceutical,and plastics industries.

Application Scenarios

At a specialty chemicals plant in Germany,operators struggled with inconsistent additive dosing during masterbatch production.Manual weighing led to±2%batch variance,causing color inconsistencies and customer rejections.The engineering team installed the KOKUSAI BALEXT-SMP 1 to automate the feeding of titanium dioxide into a twin-screw extruder.Using its three-stage fill logic(coarse,fine,dribble),the KOKUSAI BALEXT-SMP 1 achieved±0.08%repeatability across 500 kg batches.Integrated relay outputs triggered screw feeders and vibratory hoppers,while Modbus RTU sent real-time batch data to the plant’s Siemens PLC.Within three months,raw material waste dropped by 18%,and first-pass yield improved to 99.6%.

Parameter

Main Parameters Value/Description

Product Model KOKUSAI BALEXT-SMP 1

Manufacturer Kokusai Electric Co.,Ltd.

Product Category Batch Weighing&Dosing Controller

Load Cell Input 4-wire strain gauge,2 mV/V sensitivity,excitation:5 VDC±2%

Display 6-digit red LED,14 mm height,weight&status indication

Accuracy±0.1%of full scale(with proper calibration and stable environment)

Sampling Rate Up to 50 Hz(fast stabilization for dynamic filling)

I/O Interfaces 4x SPDT relay outputs,2x digital inputs(start/stop/tare),RS-485(Modbus RTU)

Power Supply 100–240 VAC,50/60 Hz or 24 VDC(model-dependent)

Enclosure Rating IP65(front panel),suitable for washdown environments

Operating Temperature-10°C to+50°C

Recipe Storage Up to 100 batches with target weight,tare,and output timing settings

Mounting Standard DIN rail(35 mm)

Technical Principles and Innovative Values

Innovation Point 1:Adaptive Fill Control Algorithm–The KOKUSAI BALEXT-SMP 1 uses real-time weight velocity analysis to dynamically adjust cutoff points during coarse and fine fill phases,minimizing overshoot even with inconsistent material flow.

Innovation Point 2:Built-In Load Cell Health Monitoring–Continuously checks for open circuits,short circuits,and drift in load cell bridges,alerting operators before weighing errors occur—critical for GMP and quality compliance.

Innovation Point 3:True Multi-Stage Dosing Logic–Unlike basic weigh indicators,the KOKUSAI BALEXT-SMP 1 supports up to three independent output stages with programmable delay and hysteresis,enabling precise control of augers,valves,or pumps.

Innovation Point 4:Seamless PLC Integration–The Modbus RTU interface allows remote recipe selection,batch start/abort,and real-time weight streaming—turning the KOKUSAI BALEXT-SMP 1 into a smart edge device in larger automation architectures.

Application Cases and Industry Value

In a Japanese food processing facility producing instant soup mixes,the KOKUSAI BALEXT-SMP 1 replaced mechanical scales on a vertical form-fill-seal line.It now controls the dosing of 12 dry ingredients—from salt to dehydrated vegetables—with individual target weights stored as recipes.The system runs 24/7 with<0.15%deviation,and the digital inputs allow synchronization with the packaging machine’s cycle signal.Quality audits that once took hours are now automated via SCADA data logs from the KOKUSAI BALEXT-SMP 1,reducing labor costs by 30%.

Another deployment in a lithium battery materials plant used the KOKUSAI BALEXT-SMP 1 for cathode powder batching under nitrogen atmosphere.The unit’s wide operating temperature range and immunity to EMI ensured stable performance near high-power mixers,while its IP65 front protected against occasional solvent mist—extending MTBF to over 80,000 hours.

Related Product Combination Solutions

KOKUSAI BALEXT-SMP 2:Enhanced version with Ethernet/IP and analog output–ideal for KOKUSAI BALEXT-SMP 1 upgrade paths.

Mettler-Toledo PWX/PWU Load Cells:High-precision shear beam sensors–optimized pairing for KOKUSAI BALEXT-SMP 1 in static hopper applications.

Siemens S7-1200 PLC:Coordinates multiple KOKUSAI BALEXT-SMP 1 units via Modbus for centralized batch management.

Allen-Bradley PowerFlex Drives:Controlled by KOKUSAI BALEXT-SMP 1 relay outputs for variable-speed feeder motors.

KOKUSAI BALEXT-IO Module:Expands digital I/O capacity when complex interlocks are needed beyond the base unit.

Wonderware System Platform:Visualizes KOKUSAI BALEXT-SMP 1 batch data for OEE and traceability reporting.

Sartorius PR 6201 Hopper Scale:Pre-engineered weighing platform compatible with KOKUSAI BALEXT-SMP 1 excitation and signal range.

Phoenix Contact AXC F 2152:Edge controller that aggregates data from multiple KOKUSAI BALEXT-SMP 1 units for IIoT analytics.

Installation,Maintenance,and Full-Cycle Support

Installation of the KOKUSAI BALEXT-SMP 1 requires secure mounting on a DIN rail inside an enclosure rated for the environment(IP54 minimum recommended).Connect load cells using shielded twisted-pair cable with the shield grounded at the controller end only.Configure fill logic,relay assignments,and communication parameters via the front keypad—no external software needed for basic operation.For advanced setups,use the built-in serial port to upload recipes or back up configurations.

Maintenance is minimal:periodically verify calibration using test weights and inspect terminal tightness.The self-diagnostics menu displays load cell health and internal voltage stability,enabling predictive servicing.If replacement is required,the KOKUSAI BALEXT-SMP 1’s modular design allows hot-swapping in non-critical lines with minimal downtime.

As a certified distributor of Kokusai industrial automation products,we supply only genuine KOKUSAI BALEXT-SMP 1 units with full factory calibration certificates.Each unit is tested for display integrity,relay functionality,and communication stability before shipment.We offer technical documentation in English,global shipping,and application engineering support for system integration.

Contact us for a customized solution—whether you’re automating a single filling station,upgrading a legacy batching line,or designing a fully traceable,recipe-driven production system for regulated industries.