Caterpillar (Qingzhou) Ltd. (CQL), formerly Shandong SEM Machinery Co., Ltd. was founded in 1958 and manufactured SEM branded wheel loaders in China for more than 60 years. In 2008, Shandong SEM Machinery Co., Ltd became a full acquisition of Caterpillar and transitioned to Caterpillar (Qingzhou) Ltd. in 2013.

As a wholly-owned subsidiary of Caterpillar, CQL produces both SEM and Cat® products. As one of the key product brands of Caterpillar, SEM product portfolio includes wheel loaders, soil compactors, motor graders and track type tractor. The products are sold exclusively through Caterpillar dealerships with dedicated or a co-located dealer of Cat internationally, covering more than 90 countries.

Caterpillar is dedicated to providing Affordable, Available and Supported SEM products and services to serve the customers all over the world.


*In 2016, SEM was indorsed by Caterpillar, and became SEM – A Caterpillar Brand

Wheel Loader

Track Type Tractor

Motor Grader

Soil Compactor

SEM Wheel Loaders have been manufactured in China for nearly 60 years. We offer compact, small and midsize loaders to meet the needs of every application.

As a product brand of Caterpillar, SEM is able to leverage over 100 years of Caterpillar technology and design experience to provide a series of track-type tractors that meet the needs of a variety of applications.

SEM Motor Graders feature a large cab mounted on the front frame for an exceptional view to the blade and front axle even during articulation.

SEM Soil Compactors are essential tools in a variety of applications, including road, railway, airfield and industry yard compaction.

Rated Capacity 6 tonnes:
SEM 660D,SEM 668D

Rated Capacity 5 tonnes:
SEM 656D,SEM 658D

Rated Capacity 3 tonnes:
SEM 636D

Rated Capacity 1.8 tonnes:
SEM 618D

Rated power 175 kW:
SEM 822D

Rated power 131 kW:
SEM 816D

Blade width 12 & 14 ft:
SEM 919 & SEM 921

Operating weight 10 & 12 tonnes:
SEM 510 & SEM 512

Dealer Introduction

Sime Darby Industrial Sdn Bhd is the Malaysian arm of Sime Darby Industrial division, a leader in the heavy equipment business, representing Caterpillar through its Tractors Malaysia dealership, offering a comprehensive range of heavy equipment products and services. The “SEM, A Caterpillar Brand” has been introduced to the Malaysian market to provide users with a highly affordable and reliable machines with responsive after sales.

Caterpillar (Qingzhou) Ltd. (CQL), formerly Shandong SEM Machinery Co., Ltd. was founded in 1958 and manufactured SEM branded wheel loaders in China for more than 60 years. In 2008, Shandong SEM Machinery Co., Ltd became a full acquisition of Caterpillar and transitioned to Caterpillar (Qingzhou) Ltd. in 2013.

As a wholly-owned subsidiary of Caterpillar, CQL produces both SEM and Cat® products. As one of the key product brands of Caterpillar, SEM product portfolio includes wheel loaders, soil compactors, motor graders and track type tractor. The products are sold exclusively through Caterpillar dealerships with dedicated or a co-located dealer of Cat internationally, covering more than 90 countries.

Caterpillar is dedicated to providing Affordable, Available and Supported SEM products and services to serve the customers all over the world.


*In 2016, SEM was indorsed by Caterpillar, and became SEM – A Caterpillar Brand

Wheel Loader


SEM Wheel Loaders have been manufactured in China for nearly 60 years. We offer compact, small and midsize loaders to meet the needs of every application.

Rated Capacity 6 tonnes: SEM 660D,SEM 668D

Rated Capacity 5 tonnes: SEM 656D,SEM 658D

Rated Capacity 3 tonnes: SEM 636D

Rated Capacity 1.8 tonnes: SEM 618D

Track Type Tractor


As a product brand of Caterpillar, SEM is able to leverage over 100 years of Caterpillar technology and design experience to provide a series of track-type tractors that meet the needs of a variety of applications.

Rated power 175 kW: SEM 822D

Rated power 131 kW: SEM 816D

Motor Grader


SEM Motor Graders feature a large cab mounted on the front frame for an exceptional view to the blade and front axle even during articulation.

Blade width 12 & 14 ft: SEM 919 & SEM 921

Soil Compactor


SEM Soil Compactors are essential tools in a variety of applications, including road, railway, airfield and industry yard compaction.

Operating weight 10 & 12 tonnes: SEM 512 & SEM 510

Dealer Introduction

Sime Darby Industrial Sdn Bhd is the Malaysian arm of Sime Darby Industrial division, a leader in the heavy equipment business, representing Caterpillar through its Tractors Malaysia dealership, offering a comprehensive range of heavy equipment products and services. The “SEM, A Caterpillar Brand” has been introduced to the Malaysian market to provide users with a highly affordable and reliable machines with excellent after sales.

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