The SHANTUI SD13 is a model of bulldozer produced by SHANTUI Construction Machinery Co., Ltd., a Chinese construction machinery manufacturer. The SD13 is a medium-sized bulldozer suitable for various construction and earthmoving applications. Here are some key features and specifications of the SHANTUI SD13 bulldozer:

1. Engine: The SD13 is equipped with a Shangchai C6121 engine, which is a 6-cylinder, turbocharged, and water-cooled diesel engine. It delivers a net power of approximately 95 kW (128 hp).
2. Operating Weight: The operating weight of the SD13 is around 13,000 kg (28,660 lbs). This weight may vary depending on the specific configuration and additional attachments.
3. Blade Capacity: The dozer blade on the SD13 has a semi-u tilt type design with a maximum blade capacity of approximately 3.7 cubic meters (4.8 cubic yards). It provides good dozing and leveling capabilities.
4. Transmission: It features a powershift transmission with three forward and three reverse speeds, allowing for smooth and efficient operation.
5. Ripper: The SD13 can be equipped with a ripper attachment at the rear, which is used for breaking up hard ground or rock. The ripper enhances the bulldozer's versatility in different types of terrain.
6. Operator Comfort: The bulldozer is designed with an operator cabin that offers comfort and visibility. It includes features such as an adjustable seat, air conditioning, and noise reduction measures.
7. Undercarriage: The SD13 has a standard track shoe width of 460 mm (18 inches) and features a suspended type of undercarriage system, providing better stability and maneuverability.
8. Technology: The SD13 may incorporate basic technology features for efficient operation, but it may not have advanced systems like GPS guidance or telematics as standard.