Our well-installed equipments enable our precision machining
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About Equipments

Murakami Seiki performs not only parts machining but enables to process up to assembling.
In order to perform ultra-precision assembling, we must provide exact precision of the machining parts. However, in-process inspection, the accuracy of the inspection equipments, and the technical skills of experienced craftsmen are required as well.
Our company succeeded in developing its own automatic machine and it has enabled us to improve efficiency and to enhance the precision of machining processes.
 

List of equipments in possession

Inspection equipments for assembly

Manufacturer / Maker Name of the equipments
Taylor Hobson Talyvel 5
Taylor Hobson The ULTRA Photo Electronic Autocollimator
Manufacturer of machine tools Type machining domain (X*Y*Z) Number of equipment
Machining Center
Mori Seiki NV4000 DCG 600*400*400 2
Mori Seiki SV-503 800*500*500 2
Mori Seiki NV5000 ƒ¿1 800*500*500 1
OKUMA MB-66VB 1500*600*600 2
OKUMA VR-40 500*350*300 1
Horizontal NC milling machine
Yamazaki Giken YZB-88NCR 1000*800*650 2
Vertical NC Milling Machine
Yamazaki Giken YZ-500SG 1000*500*700 1
Shizuoka SV-CHP 700*300*450 2
Shizuoka AN-SRN 750*450*450 1
Wire EDM machine
Mitsubishi F20 (processesable for a wider range) 500*350*450 1
Mitsubishi F20S 500*350*300 1
CNC EDM machine
Mitsubishi EA12V 400*300*200 1
Mitsubishi EA28V 650*450*300 1
SODICK AM3L 300*200*250 1
CNC high speed pinhole EDM machine
Mitsubishi MEMH43S 400*300*300 1
CNC lathe
OKUMA Vertical turning lathe V40R φ400*450 1
Mori Seiki SL-200 φ200*300 1
Mori Seiki NL-2500 φ250*1000 1
Mori Seiki SL-25 φ250*350 1
CNC all-around cylindrical grinder
Okamoto Machine Tool OGM-3100 φ250*950 2
SHIGIYA GPL-30 φ250*600 1
CNC surface grinder
Okamoto Machine Tool PSG 105 EXB 1000*500*400 1
Okamoto Machine Tool PSG 63 EXB 600*300*300 2
Okamoto Machine Tool UPZ 525 ExII 500*250*250 1
Ichikawa Factory RCB|402 φ1100(mm)*H400(mm) 1
CNC molding ultra-precision plane grinder
Okamoto Machine Tool UPZ 420 F 300*200*250 1
Three-dimensional measuring machine
ACCRETECH SVA fusion 9/6/6 850*600*600 1
Tokyo Seimitsu XYZAX VF600A 600*400*400 1
5 axis / sided machining
HERMEL C30U 650*600*500 1
Other equipments
General purpose milling Shizuoka, 3 machines
General purpose lathe Takizawa, 1 machine
Mori Seiki, 2 machines
Honing machine Fuji honing, 1 machine
Ball machine 4 machines
 

New equipments

 

FAYb laser marker

FAYb laser marker
Printing range 90mm×90mm
Letter setting
(letter height, width)
0.2`90mm
(0.001mm space setting is possible)
Print pitch
(letter pitch, line pitch)
0`90mm
(0.001mm space setting is possible)
Fan form : -180°`+180°
(0.01°setting is possible)
Character arrangement Straight line, proportional, equally distributed, and a fan form
Character type English capital letter and small letters, numbers, Japanese characters(Katakana and hiragana), Japanese symbolic characters; Kanji (JIS 1st and 2nd level), symbols, and registered characters(up to 50 types)
 

Vertical lathe V40R

Vertical lathe V40R
Maximum processing diameter φmm 400
Maximum processing length mm 450
main shaft rotation speed min-1 2,500
Knife stand stand V12
Single shaft engine kW VAC22/18.5
Size of the indispensability floor mm 1,705~2,400
 

5 axis/ sided machining HERMLE C30U

5 axis/ sided machining HERMLE C30U

It is German 5 simultaneous axis-processing machine.

This machine enables high-precision processing of complex shapes.

This can also perform such complex three-dimensional shape processing, electronic and mold components, artificial bones, aerospace components, components for power generation and complex materials etc. With this machine these are processable at high speed and precisely.

In order to prevent a warp In order to prevent a warp

The mainframe of this machine are made of artificial stone. The artificial stone is elastic because it is made from special materials such as grains of stones.
Because the mainframe is made of artificial stone, the limit for the gross weight of the processing goods can be up to 1 ton.

The spindle which can control thermal error The spindle which can control thermal error

In general,a spindle of the processor spins at high speed and this brings about a thermal expansion which is the cause of precision lose.
Japanese processors are often installed with water cooling system and this causes the precision lose in machining as well.
As one of the unique characteristics of C30U, 6 sensors are positioned at the spindle which can sense margins of error caused by thermal expansion.
With that data, the machine automatically recalculates within its own parameter to control functions. This enables a high-precision machining.

Astounding machining speed

Its superiority in processing speed to other processors is another characteristic of this machine.
Shortening the machining time brings about thermal expansion which causes precision lose. However C30U enables machining without losing its precision since it can process as it calculates margin of error caused by thermal expansion.

 

Techniques of High-precision Assembling

Murakami Seiki performs not only parts machining but enables to process up to assembling.
In order to perform ultra-precision assembling, we must provide the exact precision of the machining parts. However, in-process inspection, the accuracy of the inspection equipments, and the technical skills of experienced craftsmen are required as well.
Our company succeeded in developing its own automatic machine and it has enabled us to improve efficiency and to enhance the precision of machining processes.
If you are hoping to ‘improve the precision of your precision assembling’, feel free to contact us anytime.

Quality assurance system
 

Factory

We proactively install the most up-to-date equipments and always attempt to expand our factories.
If you are interested in visiting our factories, please contact us by email or via contact form on this web site.

Factory Factory Factory
 
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We reach the solutions to various subjects and problems
by combining different machining techniques.

We have solved a variety of subjects with precision assemblies and machining. We succeeded to meet customers' diverse demands as well. In order to become a partner for manufacturer, we put efforts to develop new techniques and equipments, and to inherit our traditional Kisage-technique for scraping.

About Kisage-technique

We reach the solutions to various subjects and problems by combining different machining techniques.
 

Feel free to contact us about our ultra-precision assembly and machining

 
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