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Machine Designer's Note

: Basic note on connection method wafers for piping, flow meters, etc.

2025/10/13 Plumbing

Today's article is "Basic Notes on Wafers, a Connection Method for Piping, Flow Meters, etc.". This article is a summary of my studies on wafers. Wafer Type What is Wafer Type Quote: OVAL Corporation "Wafer

: Carbon steel pipe size for pressure piping (STPG370/STPG410)

2024/10/5 Plumbing

Today's note is about "carbon steel pipe size for pressure piping (STPG370/STPG410). Pressure piping (carbon steel pipe) sa for use under about 350℃, generally called "STPG

: About the self-locking gear mechanism

2024/6/9 Design method

Today's note is on "Gear Mechanisms with Self-Locking Effects". In machine design, we consider mechanisms such as elevating or rotating heavy objects in one vertical direction, but at that time, there is a risk that the objects to be transported may fall or rotate backwards, which can be dangerous.

: Surface Treatment of Screws: Difference between Trivalent Chromate and Electroless Nickel Plating

2026/2/19 Surface treatment

This section is a note on the difference between trivalent chromate and electroless nickel plating, two of the many plating methods used for screws (which is an option for screw surface treatment). In practice, trivalent chromate

: Concrete Strength of Plant Floor

2025/11/13 Strength calculation

Today's note is on "Concrete Strength for Factory Floors". Here is a brief note on what standard strength is required for factory floors compared to ordinary concrete. Strength of Ordinary Concrete Strength of Ordinary Concrete Strength of Ordinary Concrete ...

: Air Combination Terminology Memo

2024/5/15 Air circuit

Today, I would like to make a note of "air combination terms". These are functional terms that you may see when selecting an air combination or checking an existing product, but it is tedious to look them up each time, so I will note the ones that caught my eye here. Air ...

: Tapered threads and connection screws for piping (PT/PF/NPT/R/Rc/G)

2025/10/13 Piping screw

Today's note is about "piping threads and connection threads (PT/PF/NPT/R/Rc/G)". In mechanical design, it is easy to get a little confused in the selection of piping connections and tube fitting connections, so here are the piping threads (connection ...

: Basic knowledge to ensure machine safety

2025/12/16 Safety design

Today's note is on "Fundamentals of Ensuring Machine Safety". We need to design our machines with an effort to ensure the safety of the machine itself and the elimination of any hazards that the surrounding environment may present.　This safety ...

: How to read, insert, and think about welding symbols

2025/10/13 Welding

Here is a note on how to read, include, and think about welding symbols, which is necessary when dealing with welded parts. Welding is sometimes handled in mechanical design, but welding symbols are difficult for those who are new to ...

: Durability and life span (nominal life) of solenoid valves

2025/8/3 Air Cylinder/Spicon

Here is a note on "Durability and life span (nominal life span) of solenoid valves". The other day, I had a lot of discussions about the durability and life span of solenoid valves, and at that time, I researched ...

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