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Little bit Engineering of Showa"LEOS"

Working Environment Measurement Agency   Registration   No.27-112

What is "LEOS"? (Little bit Engineering of Showa)

We work out solutions for your spot of trouble, by combining our products (such as blowers and Mistresa models) with the various pieces of surrounding equipment. "LEOS" represents what we do as a company. The people coming up with flexible solutions in response to the issues our customers face are our team of experts who hold licenses stipulated in ordinances such as the Prevention of Organic Solvent Poisoning, the Prevention of Hazards due to Specified Chemical Substances, and the Prevention of Hazards Due to Dust. In addition to suggesting solutions, we also respond rapidly to requests for repairs and maintenance of machines. Please don’t hesitate to consult us, no matter what your spot of trouble involves— we will use our engineering skills to create safe, comfortable work spaces.
Case Studies
Success stories where we have improved work environments through "LEOS". Please select the application.
  • Building Material Processing Industry
    Exhaust ventilation for organic solvent application work
    Local exhaust ventilation

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  • Printing Industry
    Exhaust ventilation for the gravure printing process
    Local exhaust ventilation

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  • Chemical Raw Materials Manufacture
    Measures to prevent exposure to specified chemical substances
    Push-pull

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  • Material Testing Facility
    Ventilation system for organic solvent application work
    Push-pull

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  • Automobile Parts Manufacture
    Preventing scattering of dust generated at the parts loading opening
    Dust collection

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  • Metal Parts Manufacturing Industry
    Dust collection for polishing work emitting sparks
    Dust collection

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  • Industrial Rubber Products Manufacturing Industry
    Collection of dust generated by the rubber kneading machine
    Dust collection

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  • Synthetic Material Processing Industry
    Dust collection during Bakelite processing
    Dust collection

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  • Automobile Parts Manufacture
    Collection of mist generated during testing
    Mist collection

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  • Automobile Parts Manufacture
    Collection of large volumes of soot generated during testing
    Mist collection

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  • Cutlery Manufacturing Industry
    Collection of soot generated during cutlery processing
    Mist collection

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  • Metal Parts Manufacturing Industry
    Mist collection for polishing work
    Mist collection

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  • Metal Parts Manufacturing Industry
    Cleaning of the blower impeller
    Maintenance

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  • Metal Parts Manufacturing Industry
    Cleaning of the blower impeller
    Other

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Building Material Processing Industry
Exhaust ventilation for organic solvent application work
Local exhaust ventilation
Why we were consulted
The company carried out working environment measurement at the direction of the Labor Standards Inspection Office, but the results were unacceptable, and the company was at a loss for what to do.
Before
→
After
Equipment installed
  • Enclosing hood
  • Explosion-proof exhaust blowers
  • K1S5E-1
  • Installation work including ducts
Improvements
The working environment measurement results were raised to control category 1 (optimum category) and were deemed satisfactory by the Labor Standards Inspection Office.
Printing Industry
Exhaust ventilation for the gravure printing process
Local exhaust ventilation
Why we were consulted
The printing company had installed a downdraft extraction local exhaust ventilation system to fix an issue identified by the Labor Standards Inspection Office, but working environment measurements remained poor, and we proposed considering an enclosing hood.
Before
→
After
Equipment installed
  • Enclosing hood
  • Explosion-proof exhaust blowers
  • K1S5E-1
  • Installation work including ducts
Improvements
The working environment measurement results were raised to control category 1 (optimum category) and were deemed satisfactory by the Labor Standards Inspection Office.
Chemical Raw Materials Manufacture
Measures to prevent exposure to specified chemical substances
Push-pull
Why we were consulted
Because the scope of work on chemical substance introduction processes is broad, the manufacturer was troubled by uncertainty over what kind of exhaust ventilation equipment would be best.
Before
→
After
Equipment installed
  • Push-pull hood PPHW-0909
  • Explosion-proof intake/exhaust blowers MDF-AH-600
  • Installation work including ducts/electrical work
Improvements
Introducing a push-pull type ventilation system enabled us to implement measures to protect workers from exposure and contain chemical generation sources.
Material Testing Facility
Ventilation system for organic solvent application work
Push-pull
Why we were consulted
Introducing a high velocity local exhaust ventilation system would have been impractical since precise measurement is necessary, so we proposed a push-pull ventilation system with slow wind velocity.
Before
→
After
Equipment installed
  • Push-pull hood PPH-0707
  • Explosion-proof exhaust blowers MDF-AH-800
  • Control panel CPW-07
  • Installation work including ducts/electrical work
Improvements
Introducing a push-pull type ventilation system enabled us to expel organic solvents outdoors in a manner that did not impact precise measurement work.
Automobile Parts Manufacture
Preventing scattering of dust generated at the parts loading opening
Dust collection
Why we were consulted
The issue was situated at the parts loading opening on the conveyor belt. Any dust on the parts on the conveyor belt would fly into the air when they moved.
Before
→
After
Equipment installed
  • CFA-H515
  • Hood with openable cover
Improvements
Closing the cover once the parts are loaded and using a dust collector to suction away the dust enabled us to prevent it from flying up into the air.
Metal Parts Manufacturing Industry
Dust collection for polishing work emitting sparks
Dust collection
Why we were consulted
In addition to scattering dust and sparks to surrounding areas during metal polishing and cutting, there was also a risk of fire.
Before
→
After
Equipment installed
  • GRM-H04T
  • Sedimentation box
Improvements
Using a dust collector with a turbo blower to perform high pressure suction, and a sedimentation box to decrease fire causes, we were able to eliminate dust scattering and remove fire factors.
Industrial Rubber Products Manufacturing Industry
Collection of dust generated by the rubber kneading machine
Dust collection
Why we were consulted
Dust is generated by the raw rubber kneading machine during the kneading process. Because visual inspection was necessary during the process, an enclosing hood was impractical.
Before
→
After
Equipment installed
  • CFM-H40
  • Enclosing hood (with transparent sheet)
Improvements
Parts that require visual inspection can be viewed through the transparent sheet hood. This also enabled prevention of dust scattering.
Synthetic Material Processing Industry
Dust collection during Bakelite processing
Dust collection
Why we were consulted
Bakelite is made of a wide range of compressed raw materials and large amounts of dust are scattered during the drying process.
Before
→
After
Equipment installed
  • CFA-H240
  • Openable acrylic hood
Improvements
The acrylic hood enables work on processes that require visual inspection while also preventing scattering of dust.
Automobile Parts Manufacture
Collection of mist generated during testing
Mist collection
Why we were consulted
Mist is emitted from the drive unit during test driving. The configuration was another reason— enclosure under a hood was impractical as parts size varies greatly, meaning that there is also a large variation in the measurement device attachment position.
 
 
Equipment installed
  • CRH-15E
  • Movable hood
Improvements
We secured a large work space for installing the test machine and enabled mist collection during testing without sacrificing workability.
Automobile Parts Manufacture
Collection of large volumes of soot generated during testing
Mist collection
Why we were consulted
Large volumes of soot are generated, and the manufacture wanted the simple maintenance option of filter replacement as the electric-type mist collector requires cleaning.
 
 
 
Equipment installed
  • Z-168 Special Mistresa (with differential pressure gage)
Improvements
This mist collector enables the simple maintenance option of filter replacement, and the differential pressure gage makes replacement timing clear.
Cutlery Manufacturing Industry
Collection of soot generated during cutlery processing
Mist collection
Why we were consulted
A mist- and soot-mix is generated. The Mistresa was discharging to a centralized duct, but soot was flowing into the duct and causing an oil leak.
Before
→
After
Equipment installed
  • CRM-H07-S23
  • High-performance after-filter connectable to the duct
Improvements
We were able to reduce the amount of soot flowing into the duct and eliminate duct oil leaks.
Metal Parts Manufacturing Industry
Mist collection for polishing work
Mist collection
Why we were consulted
The mist generated in the polishing process was troubling, but equipment such as a crane was needed to place the materials in the polishing machine. This made it impractical to install a hood that enclosed the mist source.
Before
→
After
Equipment installed
  • CRM-H15-S23
  • Movable hood
Improvements
We secured a large work space for placing the materials and prevented mist generated in the polishing process from being scattered to surrounding areas.
Metal Parts Manufacturing Industry
Cleaning of the blower impeller
Maintenance
Why we were consulted
The manufacturer had a blower made by an unspecified manufacturer that produced abnormal vibration, and they were troubled by uncertainty over what measures to take.
Before
→
After
Equipment installed
  • Cleaning of the impeller on the blower manufactured by another company as well as balance adjustments
Improvements
Performing impeller cleaning and balance adjustments eliminated the abnormal vibration and enabled normal blower operation.
Automobile Parts Manufacture
Modification of the duct inspection opening
Other
Why we were consulted
Inspection and cleaning of the duct via the inspection opening was required frequently, and it was a nuisance having to remove the nuts and bolts each time.
Before
→
After
Equipment installed
  • The inspection opening was modified to enable interior inspections without tools.
Improvements
Modifying the inspection opening so that it could be opened and closed by handle, and without tools, enabled large reductions in manhours.