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  • High Precision / Micro Machining Services - Mechanika Precyzyjna Ceramiki i Metale Ogniotrwałe | Top Seiko Co.,Ltd.

High Precision / Micro Machining Services

Top Seiko provides high precision and micro machining services for a wide variety of exotic hard materials. Our well-equipped & maintained facilities combined with our in-depth knowledge and extensive machining experience of hard materials, we manufacture highest quality custom machined parts.

Manufacturing environment
  • All processes are carried out in climate controlled environment.
  • Anti-vibration countermeasures are taken for the floors.
  • With continuous investment in facilities, machines and equipment are kept up-to-date.
  • To maintain the accuracy, all machines are daily checked and regularly maintained.
  • To maintain the accuracy, all machines are daily checked and regularly maintained.
  • Tools are designed by Top Seiko and then custom-made by tool manufactures or produced by ourselves.
  • We carry out test machining to elucidate mechanisms of grinding and cutting, and to develop the most suitable tools.
Fixtures / Jigs
  • We design and make fixtures / jigs if needed.
  • We have many highly-skilled and experienced staff.
  • Our education and training programs aim to continuously equip our staff with knowledge and skills.
Machining conditions
  • With our accumulated machining data, optimal machining conditions for each project can be easily and quickly decided.
  • If needed, we carry out test machining, and then proceed with the actual production based on machining data acquired from the test.
Knowledge of materials
  • As an expert of hard materials, we are constantly seeking to expand the knowledge about hard materials essential to maintain our high quality precision machining service.
Materials we machine include
  • Advanced Ceramics, Quartz Glass, Glass Ceramics, Tempax, Silicon, Machinable Ceramics, Metal Ceramic Composite Materials, Molybdenum, Tungsten, Tantalum and etc.
Quality Assurance
  • Each product goes through inspection by our well-trained staff who have both knowledge and skills required to carry out the inspection properly.
  • All inspection & measuring equipment is daily checked and regularly calibrated to maintain the accuracy.
  • For your special inspection needs, inspections by external inspection organization such as Industrial Research Institute are also available up on request.

Machining Tolerances for High Precision / Micro Machining Parts

Features Tolerances (unit: mm)
Normal Tight
Pitch ±0.05 ±0.003
Inner/Outer Diameter ±0.05 ±0.003
Thickness ±0.05 ±0.002
Height of Step / Column ±0.05 ±0.003
Depth of Counterbore ±0.05 ±0.003
Hole Diameter ±0.1 ±0.005
Thread Go: inspected with a thread gauge No go: inspected with a pin gauge of the pilot hole size
Flatness 0.05 0.003
Parallelism 0.05 0.005
Roundness 0.05 0.005
Cylindricity 0.05~0.1 0.005
Surface Roughness Ra0.8 Ra0.05

Machining samples

Molybdenum Custom Machined Sample

Molybdenum Custom Machined Sample: Thickness 0.05, Frame width: 0.05

Probe Guard Jig

Probe Guard Jig: φ0.07 x 100 PL for Machinable Ceramics

Micro Machined Product

φ Size: φ1 x thickness 1mm
Material: Black Alumina
The groove width and depth are 0.07 mm.