Product Case Studies

Auto parts

SAKURAI has an extensive record when it comes to processing parts that are central to  automobiles, such as transmission cases and engine parts.
Backed by advanced technology, we can provide high-quality functional parts to automobile manufacturers, both domestically and overseas.                         
In recent years, we have also been contracted to produce cases for drive motors

 

Industrial machinery/general-purpose parts

SAKURAI processes engine parts for outboard motors and agricultural machinery. In addition to the stable supply of products, we have a dedicated line to handle multi-variety, multi-functional products.

Prototype/lot production

In the processing of prototypes, with confidentiality at the core of what we do, we maintain a challenge mindset towards the development of new technologies. Providing parts that can withstand extreme environments is proof of our technical capabilities, and we are in constant pursuit of even higher precision.

 

5-axis control machining center

 R0 corner end mill processing
Male and female connector processed to fit pin angle.


 

 Thin ribbed sphere
Each rib is 0.4mm thick and is composed of a combination of pentagons and hexagons.
There is a reverse bank on the protruding part of the pentagonal part,
and it can only be used with 5-axis simultaneous control machining.
The protrusions in between the ribs are attached for protection.

 

 Octo structural sphere
Machined from a single piece of material.
Each sphere has a minimum clearance of 0.5mm
and has a combination of 5 and 6 corners on the exterior.
It is a 32-sided and the inner surface is spherical

 

Production Record

Transaxle housing automated production line
Machining center line
Prototype processing equipment

1) AT/MT/CVT case processing for automobile powertrainsapprox. 12,000 units monthly
2)  Machining motor cases for driving automobilesapprox. 4,000 units monthly
3) Cylinder head processing for automobile V6 enginesapprox. 6,000 units monthly
4)  Other general-purpose engines and outboard engines such as cylinder heads, head covers, etc.approx. 4,000 units monthly
5) Machining of cylinder heads and blocks for engines of agricultural and construction machineryapprox. 2,000 units monthly
6) Motorcycle cylinder processingapprox. 30,000 units monthly

Case study of Non-mass production parts

1. Fixed-term on-demand production

Support for customers whose production capacity is overwhelmed by demand, based on contractsranging from around three to twelve months. Examples include
1)Passenger car transmission cases: 16,000 units (8,000 sets) per month under 6-month contracts
2)Cylinder heads for straight-six diesel engines of passenger cars: 100 sets per month over one year
3)Motorcycle cylinder heads: 2,000 units per month over six months

2. Long-term, low-volume production

Support for customers that are outsourcing processes due to reduced output, particularly whereproduction has peaked out and manufacturing equipment and space are being repurposed. Examplesinclude
1)Passenger car transmission cases: 16,000 units (8,000 sets) per month under 6-month contracts
2)Cylinder heads for straight-six diesel engines of passenger cars: 100 sets per month over one year
3)Motorcycle cylinder heads: 2,000 units per month over six months

3. Fabrication of parts and test pieces

1) Automatic transmission valve bodies: 40 units
2) Motorcycle cylinders (old model): 50 units
3)Test pieces to support customer testing of new equipment

4. Fabrication of experimental parts and prototypes

1) Full processing of V8 cylinders blocks for a racing engine
2) Full processing of an experimental CVT transmission case
3)Cutting tests for parts being considered for mass production

Equipment introduction

Processing Facilities
MachineSpindle taper holeManufacturerModelNumberX-axisY-axisZ-axisNumber of ATCs
Horizontal machining center50ENSHU LimitedJE80580080080040
ENSHU LimitedGE580H680080080040
Okuma CorporationMA-600HB21000900100040
Okuma CorporationMA-600HBSP11000900100060
MITSUI SEIKI KOGYO CO.,LTD.HS5A(8-APC)1850700750150
Makino Milling Machine Co., Ltd.a81nx19009001020187
DMG MORI CO., LTD.NH5000273073085054
Matsuura Machinery CorporationH.Plus-500180080080060
JTEKT CORPORATIONFH630SX-i11050900105060
SAKURAI LTD.SH5A(5-axis)170050070030
SAKURAI LTD.SH6A(5-axis)110001000100060
40ENSHU LimitedJE60160060063040
ENSHU LimitedJE60S1460060063040
ENSHU LimitedJE80S1480080080040
ENSHU LimitedGE480H880080080040
ENSHU LimitedGE460H260060060040
ENSHU LimitedJE50S450050050024
Okuma CorporationMX-40HA360061061030
Okuma CorporationMA-40HA160061061030
Toyoda Machine Works Ltd.FA45160060056040
KIWA MACHINERY CO., LTD.BH-45164061068040
KIWA MACHINERY CO., LTD.Triple H401451051040020
JTEKT CORPORATIONFH400J160056063060
30ENSHU LimitedGE30H450050050024
ENSHU LimitedJE30S850035030016
Vertical machining center50ENSHU LimitedEV-6501130061076030
ENSHU LimitedEV-530382053051030
Okuma CorporationMB-56VA2105056046020
Okuma CorporationMX-45VB-R156046045020
Okuma CorporationMB-46VBE276046046020
OKKVM53R2105053051030
OKKVM5Ⅲ182051051020
JTEKT CORPORATIONFV1165S3110065060030
30ENSHU LimitedEV360360036036024
FANUC CORPORATIONa-D21LiB5470040033021
Total120
Other equipment
MachineManufacturerModelNumber
NC latheOkuma CorporationLB250T1
LB4000EXⅡ2
Takisawa Machine Tool Co., Ltd.TCN-3500L101
Double head rotary milling machineSAKURAI LTD.2A-8602
2A-12003
2B-12003
5M-12001
5H-15003
Multi-axis head changing machineSAKURAI LTD.TURREX MHC-4HD5
Honing machineSAKURAI LTD.35HV1
45HV2
General purpose lathe1
General-purpose milling machine4

The Customers of PARTS DIV

  • Ahresty Corporation
  • AISIN AW CO.,LTD.
  • KUBOTA CORPORATION
  • KOFU MEIDENSHA ELECTRIC MFG. CO., LTD.
  • JATCO LTD.
  • SUZUKI MOTOR CORPORATION
  • NIDEC CORPORATION
  • HIROSHIMA ALUMINUM IND.CO.,LTD.
  • HONDA MOTOR CO.,LTD.
  • MITSUBISHI HEAVY INDUSTRIES, LTD.
  • YAMAHA MOTOR CO.,LTD.
  • YANMAR POWER TECHNOLOGY CO., LTD.
  • RYOBI LIMITED
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