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I couldnt find a reliable source for a YFT12 mini excavator model its possible theres a typo, or it might be a less common/local model. However, I found specs for very similar models (like YFE12, YT12, YFE12A/B) which may be close. I can piece together what a mini excavator of that size is likely to have, so you can compare with your machine and see what matches. If you want, I can try dig up specifics for your serial/model if you give more details (engine type, country of origin, photos etc.).

Heres a typical description/specification for a 1.01.2 ton mini excavator in that class (like YFE12 / YT12 etc.), with key features & performance. You can adapt based on what matches YFT12.

General description

A mini excavator in the 12 ton / 1.2 ton class (or 12 in model number) is a compact crawlertype earthmoving machine designed for light construction, landscaping, trenching, pipeline work, and other jobs where space is limited. It has a small swing radius, can work in tight spaces, often with rubber tracks, and usually have options for canopy or enclosed cab, different bucket sizes, etc.

Likely specifications (based on similar models)

Features youd expect in a machine like YFE12 / YT12

• Engine from a known brand (e.g. Briggs & Stratton, Koop, Kubota etc.) for reliability.

• Rubber tracks to reduce surface damage and improve portability.

• Strong hydraulic pumps with good response and likely energy saving features.

• Good cooling/radiator system to maintain temperature under load.

• Possibly side digging / side shift capability for working against walls or in tight spaces.

• Structure built with robot welding or automated welding to ensure strength in joints.

• Standard bucket plus optionally several bucket sizes.

If you want, I can try to find the exact spec of YFT12 if you can tell me:

• what country or maker it is (manufacturer)

• engine make/model (if you know)

• weight or any dimension youve seen

• photo or link