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  • What's Metal Micro Tube
  • Features of our Metal Micro Tube
  • Comparison with other manufacturer(material)'s
  • Introduction of Products Application
  • Proposal
  • Advantage of our Metal Micro Tube
  • History of our Metal Micro Tube
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What's Metal Micro Tube

Our high precision Micro Tube is made with ultimate accuracy unachievable by existing grinding technology.
We process a stainless core wire into the same OD as requested ID at high precision and complete the surface by nickel plating to form the out line.
By removing the stainless steel wire, ID is finally formed.
Smoother surface finishing of the stainless steel wire ensures far more precise ID than grinding work's.

Strict alignment of optical axis is necessary for connecting optical fibers together or to optical devices.
The part used to align optical axis is Optical Ferrule. At the tip of the ferrule, there is a micro tube called Capillary whose center has a slightly larger hole than OD(125μm) of optical fibers. The hole is required submicron accuracy on its ID, OD and eccentricity.

Basic specification of Micro Tube

Material	Pure Nickel: more than 99.99% purity
Outside Diameter = OD	φ0.5　-　φ3.2mm
Inside Diameter = ID	Flexible designing is possible　（minimum φ0.05mm）
Length	1〜３５０mm
Tolerance of OD	±0.0005mm
Tolerance of ID	0.0005mm
Concentricity	0.004mm　（In single mode: 0.0014mm)
Eccentricity	0.0005mm
Roundness	0.0005mm

※ Detailed specification will be confirmed with customer before we start the manufacturing.
※　Please note that some combinations of the above spec may not satisfy all the above conditions.

Comparison with other manufacturer(material)'s

Based on our evaluation

In case Ferrule use	Our Micro Tube	Ceramic made	Plastic made
Material cost	◯	△	◯
Dia. Reduction	◎	×	×
Machinery costs and the running costs	Reasonable（○）	Huge（×）	Reasonable（○）
Bonding method	YAG laser welding is possible	YAG laser welding is impossible	YAG laser welding is impossible
Order availability for special, prototype or small lot	◯	×	×
Durability/quake resistance/water proof/heat resistance	◯	×	×

・Extraordinal precision is proved in comparison with grinded SUS, brass or other material.

Introduction of Products Application

Micro Tube

Pacth Code

• Ferrule

  Essential core parts for optical patch cord.

• Sleeve

  Used as core parts in FTTH products.

• Spacer

  Used inside of small products.

• Taper Nozzle

  Use for medical laser irradiators.

• Probe pin cover

  Used as protector of micro prove pin on semiconductor inspection devices.

Proposal

• Co-development:
  We are pleased to co-develop with customers.
• Prototype order:
  We will accept various small-lot orders.
• Completion of order:
  We assure the products completion by clarifying problems and tasks arisen.
• Cost reduction:
  We will reduce production costs by pursuing streamling of the production process.
• QCD:
  We can propose further ideas to your QCD activity.

Consistent production from micro tube manufacture to products assembly is possible, which will contribute to eliminate transportation costs and to shorten the lead time.

we can offer proper jigs and laborsaving machineries to ensure higher efficiency on small products.
Testing is possible in our laboratory.

Advantage of our Metal Micro Tube　　

Our short time delivery of various small-lot production will work effective for your prototype developments, studies and so on.

• High in heat and electric conductivity

  Suitable for use in devices concerned heat effect such as laser equipment.

• No optical diffusion and transmission

  Lower insertion and return loss than zirconia made. Noiseless.

• High vibration resistance

  No abrasion powder emits under vibrating conditions such as in-car or in-airplane.

• Low price but high quality

  Significantly shorter production process than zilconia ferrule's has enabled us to offer low prices to customers.

• Dia. reduction

  Only steel made tube can satisfy requirement of smaller dia.

• Excellent workability

  Excellent workability such as easy-welding gives designing margin of shapes and dimensions to devices.

History of our Metal Micro Tube

2004年	Launched sales and promotion in earnest. Secured prototype orders from major connector manufacturer.
2004年	Adopted as core parts of FTTH products and started mass production.
2005年	Also adopted to other FTTH products and started the mass production. Inquiry for other use than optical transmission component has been increasing.