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| SAKAI HEAVY INDUSTRIES | ||||||||
| SAKAI ENGINEERING CO., LTD. |
Founded by Sakai Kiyonosuke for the purpose of manufacturing and repairing parts for automobiles, internal combustion engines, and steam locomotives.
Locomotive manufacturing begins.
With the expansion of civil engineering projects in our country, production of various road rollers for road compaction began. Subsequently, in response to increasing demand, equipment was expanded sequentially, leading to a remarkable development of the business.
Japan's first domestically produced macadam roller. The conventional macadam roller SAKAI KD120 consisted of a drive wheel and a guide wheel; the guide wheel was non‑driven, smaller in diameter, and did not rotate, causing extrusion of compaction material and asphalt mix pull‑out phenomena. The differing loads on front and rear wheels led to pull‑out and uneven pressure across the working width, creating operational inconveniences.
Export began, starting with the Thai road roller.
The headquarters and most of the main factories were destroyed by war damage.
Former president Sakai Tomokazu undertook reconstruction and began rebuilding the factory.
The business organization was converted into a corporation, and Sakai Workshop was established (capital 2 million yen).
Reorganized the business organization into a corporation and established Sakai Workshop. Capital of 2 million yen.
Demand from overseas also intensified, exporting to countries such as the Philippines, Thailand, and Pakistan.
Since 1950, orders from both domestic and overseas markets have gradually increased, exporting to countries such as the Philippines, Thailand, and Pakistan.
Manufacturing of the SR1 vibration roller and the PM103 road stabilizer began.
Manufacturing of the TR41 tire roller began.
The company name was changed to Sakai Heavy Industries. Due to decreased demand from the shift to truck transportation by the Forestry Agency, locomotive manufacturing was discontinued.
Developed the R1 Macadam roller, a fully wheeled, equal-line pressure, hydraulically driven machine.
Developed the SAKAI R1.
Developed the SAKAI R1.
Established a joint venture PT. SAKAI SAKTI in Jakarta, Indonesia, and began assembly and repair of road rollers.
Established Sakai Engineering (December 1980), renamed Sakai Crane Industry and Sakai Machinery, and developed the ER160 hydraulically driven wheel-type road cutter.
Established Sakai Engineering. Renamed Sakai Crane Industry and Sakai Machinery to new corporate names. Developed the hydraulic wheel‑driven road cutter ER160.
Developed the sister machine SAKAI R2 for small‑scale construction, inheriting all features of the R1 and continuing to the present.
In 1974, developed the sister machine SAKAI R2 for small‑scale construction, inheriting all features of the R1 and continuing to the present.
Established SAKAI AMERICA, INC. in Delaware, USA, for the purpose of importing, exporting, and selling construction machinery.
Established SAKAI AMERICA, INC. in Delaware, USA.
Developed the SV90 large vibration roller for earthworks.
Developed the large-scale vibration roller SV90 for earthworks.
Developed the SW70 all-wheel drive, all-wheel vibration tandem roller, and the PC7 vibration plate compactor.
The R1-30345 unit manufactured in 1979 is preserved in a dynamic state.
Listed on the First Section of the Tokyo Stock Exchange.
Developed the Tanpa VT6 and the pavement compaction management device RECOM.
Developed the preheater PH300 and the recycler mixer PM1000.
Developed the vertical vibration roller SD450 (obtained private construction technology certification from the Ministry of Construction).
Developed the vertical vibration roller SD450.
Ichiro Sakai became president. Established PT. SAKAI INDONESIA in Bukasi City, Indonesia. Developed the asphalt finisher PT310.
Ichiro SAKAI became president. Established PT.SAKAI INDONESIA in Indonesia. Developed the asphalt finisher PT310.
Obtained ISO 9001 certification for quality assurance from the International Organization for Standardization.
Obtained ISO9001 certification. Constructed a test building with a pit for soil compaction testing.
Established SAKAI AMERICA MANUFACTURING, INC. in the state of Georgia, USA. Expanded PT. SAKAI INDONESIA.
Returned to hometown SAKAI in 2018.
Established Sakai Engineering Machinery (Shanghai) Co., Ltd. in Shanghai.
Established SAKAI Engineering Machinery Co., Ltd. in Shanghai, China.
Developed the world’s first tire roller GW750 with a vibration mechanism.
Developed the tire roller GW750 with a vibration mechanism.
The world’s first vibration mechanism-equipped vibration macadam roller MW700 was registered with NETIS of the Ministry of Land, Infrastructure, Transport and Tourism. Developed the road stabilizer PM550.
The vibration-equipped vibration macadam roller MW700 was registered with the Ministry of Land, Infrastructure, Transport and Tourism's NETIS. Developed the road stabilizer PM550.
Developed the earthwork vibration roller SV520/620.
Constructed an integrated development and manufacturing office within the production center.
Established PT. SAKAI SALES AND SERVICES ASIA to improve sales and after‑sales service.
Established PT. SAKAI SALES AND SERVICES ASIA in Indonesia.
Born in 2018, returned to hometown SAKAI.
Celebrated the 100th anniversary of founding. Developed the first 10t tire roller TZ704 Guardman with emergency brakes in the road machinery industry.
Celebrated the 100th anniversary of founding. Developed the first 10t tire roller TZ704 Guardman with emergency brakes in the road machinery industry.
Consolidated three Indonesian sites, including PT. SAKAI INDONESIA, and established a new factory to strengthen local production and build a supply base.
Consolidated three Indonesian sites, including PT. SAKAI INDONESIA, strengthened local production and established a new factory.
Listed on the Prime Market of the Tokyo Stock Exchange.
Moved headquarters to create a comfortable workplace, activate communication, and improve operational efficiency.
Relocated headquarters to improve workplace environment, communication, and operational efficiency.
Signed a partnership contract with Urawa Reds. "Macadam Roller Sakai R1 (manufactured since 1968)" was recognized as a 2024 Mechanical Heritage (No.123) by the Japan Society of Mechanical Engineers. Transferred production of Road Cutter ER555F-s and Road Stabilizer PM550-s to PT. SAKAI INDONESIA.
Signed a partnership with Urawa Reds. "Macadam Roller SAKAI R1" was recognized as a "Machine Heritage" in the 2024 fiscal year. Transferred production of the road cutter ER555F and road stabilizer PM550-s to PT. SAKAI INDONESIA.
On September 30, 2026, Sakai Heavy Industries announced that it is advancing climate-related disclosures in line with the TCFD recommendations. It plans to continue reporting climate-related information and working toward a decarbonized society.
Wakachiku Construction has decided to join a project by JIG-SAW and Sakai Heavy Industries to develop “ASCS for Compaction Equipment,” an autonomous control system for road rollers. The project aims to create an industry-standard machine equipped with practical autonomous functions, such as those used in autonomous rollers. Wakachiku Construction is headquartered in Meguro, Tokyo.
JIG and Sakai Heavy Industries are developing the industry-standard autonomous machine "ASCS" equipped with autonomous driving functions for road rollers. This time, Tobishima Construction's participation has been decided, and the progress of the project is expected.
Sakai Heavy Industries announced its medium-term management plan covering fiscal years 2026 to 2031. The plan sets targets for sales, profits, and ROE.
Sakai Heavy Industries has formulated the medium-term management plan "Medium-term Management Plan 2031" covering the five years from 2027 to 2031. The plan sets target values for sales, operating profit, and ROE. Details are scheduled to be posted on the website on August 7, 2026.
Sakai Heavy Industries plans to allocate 44,800 shares of restricted stock to directors on July 22, 2026.
Sakai Heavy Industries reports on its performance for the fiscal year 2026.
Sakai Heavy Industries Co., Ltd. has decided to issue 44,800 new shares as stock compensation for directors and executive officers, with transfer restrictions applied. The issuance is scheduled for July 22, 2026.
Sakai Heavy Industries Co., Ltd. is requesting to implement improvement measures for the unrepaired recall parts of the target vehicles.
Sakai Heavy Industries will participate in the international construction and surveying exhibition CSPI-EXPO 2026 held at Makuhari Messe, introducing products such as vibration compaction technology and electric hanger rollers.