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From the manufacturer
Tsumura World’s Highest Quality Chain Saw Guide Bars & Accessories
Tsumura chain saw bars & accessories are manufactured and assembled on advanced technology machines and equipment to provide high standard of durability , strength, finish and accuracy in the heat treatment process. Our chain saw guide bars also incorporate uniform groove gauge tolerances for precise chain fit and improved cutting stability over bar nose. The sprocket noses are made of quality material and carefully heat treated and the roller bearings are the best ones available. Even the rivets were studied to determine the strongest and most compatible material specifications. Our bars are sold to all markets throughout the world and are the choice of professional loggers everywhere.
Technology
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Laser CuttingThe Laser cutting process allows us flexible and fast cutting for making any kinds of bar shape. Any prototype can be made according to your request. Please feel free to consult us about prototype manufacturing. |
Salt Bath Heat TreatmentGuide bars require both of contrasting characteristics of toughness and hardness. Tsumura has adopted salt heat treatment that draws both of the contrasting characteristics maximally. The salt bath heat treatment is the best way to achieve ideal steel which has toughness and hardness. Normally, Steel is heated over 800℃ immediately, but the salt bath heat treatment takes up slow heating method. Then, good hardened steel structure, which is stable and less distortion, can be obtained. |
Straightening ProcessA saw chain rotates faster than 25m/sec on the chain tracking groove of guide bars, so straight rail of guide bar is important. If the rail is not straight, you would have some trouble. For example, guide bar would be biased wear. Also, you can’t cut tree straightly. That’s why, Tsumura has three time straightening process which are arranged after the press process, the heat treatment, and finishing process. the straightening process is carefully done by professional manually. |
Light & ToughTsumura’s chain saw guide bars incorporate a unique design that makes the lightest guide bars available today. Dove-tailed notches are staggered and cut into the bar surface and packed with hard resin which reduces the weight of the guide bar by about 20%. This is improves cutting efficiency and stability and also reduces user fatigue. In keeping pace with the progress in the technology. |
Solid Guide Bars
Solid guide bars are manufactured from one plate of super hard alloyed steel SKS-51 by cutting groove. Also, we adopt salt heat treatment which is the best way to achieve ideal steel which has hardness and toughness.
Solid guide bar is tougher than laminated guide bar because it is manufactured from one plate. Besides, Solid sprocket nose guide bar nose can be replaceable and adequate change of nose part will extend guide bar life. It is essential to clean oil hole cleaning after using chainsaw. Solid sprocket nose type needs grease inject after/before using chainsaw.
We also manufacture a light weight edition which is about 20% lighter than standard type.
Top reviews from the United States
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Reviewed in the United States 🇺🇸 on April 4, 2023
Color: StandardSize: 24" BarStyle: .058 x .325 in.Verified Purchase
Reviewed in the United States 🇺🇸 on January 31, 2023
Color: StandardSize: 16" BarStyle: .050 x .325 in.Verified Purchase
Reviewed in the United States 🇺🇸 on January 1, 2021
Color: StandardSize: 18" BarStyle: .058 x .325 in.Verified Purchase
Reviewed in the United States 🇺🇸 on October 8, 2020
Color: StandardSize: 18" BarStyle: .058 x .325 in.Verified Purchase
Reviewed in the United States 🇺🇸 on January 30, 2022
Color: Light WeightSize: 16" BarStyle: .050 x .325 in.
