The new Avant 635i and 640i loaders – Impressive power in a compact package

Finnish compact loader manufacturer Avant Tecno has introduced two new loader models in the popular Avant 600 series: the single-speed Avant 635i and the double-speed Avant 640i.

Both new models have the all-new Kohler KSD engine, which provides more usable power because of its electronic injection and simple operation with no exhaust after-treatment necessary. 

Building on the globally recognised Avant concept of compact but mighty machines, the new Avant 635i and 640i models complete the renewal of the Avant 600 series. It is popular in many fields of work such as landscaping, farming, property maintenance, construction and demolition, and horse stables. 

The new Avant 635i travels at 12 km/h, and the maximum speed of Avant 640i is 23 km/h. Both models are equipped with a certified ROPS/FOPS canopy as standard – the modern, spacious GT cab enclosure with ergonomic design is also available, providing more safety and operator comfort.

Kohler KSD engine and high oil flow 

The completely new electronically controlled Kohler KSD 1403 engine is a common rail diesel engine with a displacement of 1.4 litres and an output of 26 hp / 19 kW. The engine was designed with the requirements of the latest Stage V and Tier 4 Final emission standards in mind: its power and other features have been optimised to 19 kilowatts, eliminating the need for a particulate filter. 

The three-cylinder naturally aspirated engine gives the machine plenty of torque in the low rev range. Also, there is very little power drop in high altitudes. The electronic injection adapts to varying load conditions much better than a conventional injection system. 

An Avant user will notice this when doing earthmoving work with a bucket. Pushing and lifting simultaneously won’t stall the engine. 

Thanks to the new diesel engine, the auxiliary hydraulics’ previous output of 50 l/min has been increased to an oil flow of 66 l/min, which is exceptionally high in this power class. 

The new 635i/640i models work very well with hydraulic attachments that require higher flow, which enables an even more versatile and efficient use of the loader. 

New features and a new look 

The Avant 635i and 640i models have a safety-enhancing electric power distribution unit (PDU), where most of the fuses and relays are located. The safety features of the loader are now controlled by a separate electronic control unit of the loader (VECU). 

In the cab, separate gauges have now been replaced by a convenient multi-function display. It provides the Avant user with varied information on the loader, such as engine speed, oil flow of auxiliary hydraulics, fuel quantity, current fuel consumption, outside temperature, hydraulic oil temperature, load alarm, total operating hours, maintenance info and fault codes. All this is available in 11 different languages.

The design of the machines and the cover panels are identical with the 645i/650i models, which makes the appearance very modern and the loaders easy to service at the same time. 

Available now In Stage V and Tier 4 final countries, the new Avant 635i and 640i models replace the previous models, Avant 635 and Avant 640. In Stage 3 countries, the range will continue to include the 635 and 640 models with 37 hp Kubota engines, and the new “i” models (635i and 640i) with the Kohler KSD engine will be offered additionally.

For further information, please contact Avant Tecno (UK) on 0800 015 8482 or visit