JINLI SCREW is one of the most history and famous screw barrel brand in China. We have professional and experienced teams in every department of our company. We think professional, quality and service is the basic of business. If you want reliable and helpful screw barrel, we will be your best choice! Please kindly find our detailed information as following:Â
Planetary screw barrel specification:
Diameter: Φ120mm-Φ350mm
Products display:Â
Technical information:Â
Base materials:Â
1)38CrMoAlA (JIS SACM645) Â Â Â
2)42CrMo (AISI 4140) Â Â
Bimetallic alloy materials:Â
1)Ni-based alloy/Deloro alloy  Â
2)Tungsten carbide/Wolfram carbide
Processing technics:Â
Heat treatment
High-frequency quenching
Nitriding treatment
Ionic nitriding treatment
Bimetallic alloy centrifugal casting
Technical parameters:Â
Nitriding layer depth:Â 0.3-0.7mm
Nitrided Hardness:Â 850-950HV (HRC 50-60)
Nitrided brittleness:Â Less than grade 1
Surface roughness:Â Ra 0.4
Linearity of screw:Â 0.015mm
Bimetallic layer depth: 2Â mm
Bimetallic layer hardness:Â HRC 50-65
Terms and Conditions:Â
Means of transport:Â Ocean, Air, Express
Production time:Â About 20-30 days after we receive the advanced payment
Production Process:Â
Receiving orders -Â Designing &Â Drawing confirmation -Â Blanking Thermal refining -Â Heat treatment -Â Rough Turning -Â Polishing -Â Drilling for barrel -Â Semi Finishing Machining -Â Bimetallic welding -Â Centrifugal casting for barrel -Â Polishing -Â Nitriding treatment(120 hours) or High frequency quenching -Â Hard-chrome plating -Â O. D. Grinding -Â Honing for barrel -Â Alignment -Â Polishing -Â Inspecting -Â Packing &Â Shipping
JL SCREW's advantage:Â
First-class designing and researching team;Â
High quality and durable products of screw barrel;Â
Most professional sales who can serve for you timely;Â
Best customer service especially after-sale service;Â
Powerful company's strength support long-term cooperation.Â
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Welcome to contact us, Tracy will reply you timely!Â
The Tanto was primarily used as a weapon by samurais and was often carried as a secondary weapon alongside a longer sword, such as a katana. It was designed for close-quarters combat and was used for stabbing and slashing.
The blade of the Tanto is usually made from high-quality steel and is known for its sharpness and durability. The handle is traditionally made from wood and is wrapped with a cord for a secure grip. Some Tanto may also feature decorative elements such as ornate carvings or inlays.
In addition to its use as a weapon, the Tanto also had ceremonial and symbolic significance in Japanese culture. It was often given as a gift or used in rituals and ceremonies.
Today, the Japanest Tanto continues to be appreciated for its craftsmanship and historical significance. It is often collected as a piece of art or used in martial arts training.
Tanto Folding Knife, tanto blade, tanto sword,Tanto Katana
Ningbo Autrends International Trade Company , https://www.longquan-swords.com