YATO YT-84990 Chainsaw Chain Sharpener
Key information
Availability:In stock (ready to ship)
Shipping time:immediately
Shipping cost:From 3.28 Euro
catalog number:YT-84990
Availability:
EAN code:5906083056611
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:2,50 kg
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- Product description
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YATO YT-84990 Chainsaw Chain Sharpener
An electric bench-mounted sharpener designed for precise sharpening of petrol and electric chainsaw chains. Fitted with an 85 W motor and a 108 mm grinding wheel, the unit allows the sharpening angle to be adjusted between 0° and 35°, so the settings can be matched to different types of saw chain.
Features of the chainsaw chain sharpener
Sharpening angle adjustment from 0° to 35°
The ability to set the sharpening angle precisely lets you match the settings to the chain manufacturer's specification. Standard chains are sharpened at 25-35°, chains for hardwood require a smaller angle and those for softwood a larger one. This adjustment makes it possible to preserve the original cutter geometry.
Speed of 5500 rpm
The high speed of the grinding wheel ensures smooth and efficient material removal without overheating the chain cutters. This speed is optimal for 108 mm wheels – a lower speed would lengthen the sharpening process, while a higher one would cause the steel to heat up excessively.
Chain pitch adjustment
The unit can be adjusted to suit different chain pitches (the distance between the links). The most common are 3/8" and 0.325" – checking the pitch before sharpening is essential, as it affects the setting of the guide and the correct positioning of the cutter against the wheel.
Metal guide and stable base
The metal guide ensures a consistent sharpening angle for every cutter on the chain. The rotating plastic base allows the position to be changed quickly without having to move the whole unit, which speeds up work when sharpening a complete chain.
Technical specification
| Model | YT-84990 |
| Rated power | 85 W |
| Speed | 5500 rpm |
| Grinding wheel dimensions | 108 x 23 x 3.2 mm (diameter x width x bore) |
| Sharpening angle adjustment range | 0-35° |
| Power cable length | 1.8 m |
| Power supply | 230 V / 50 Hz |
| Guide material | Metal |
| Base material | Reinforced plastic |
Applications of the electric chain sharpener
- Sharpening chains for petrol chainsaws of various power and engine capacity
- Maintenance of chains for mains-powered and cordless electric chainsaws
- Restoring sharpness to chains after work in demanding conditions (sand, soil)
- Levelling cutter height after uneven chain wear
- Preparing chains for cutting hardwood or softwood by adjusting the angle
- Repairing chains with individual damaged cutters
- Regular chain maintenance in forestry operations and landscaping companies
- Sharpening chains in garden machinery service workshops
Use and maintenance
Preparing to sharpen
Before starting work, check the chain pitch (usually marked on the saw bar) and set the correct sharpening angle in line with the chain manufacturer's recommendations. The chain should be cleaned of dirt – sand and soil accelerate grinding wheel wear. It is worth marking the first cutter with a marker pen so that the same cutter is not sharpened twice.
Replacing the grinding wheel
The 108 x 23 x 3.2 mm wheel needs replacing when its diameter has decreased by around 10 mm or when the edges show signs of damage. A worn wheel results in longer sharpening and overheating of the cutters. When replacing it, make sure the new wheel is intended for chain sharpening (with a grit suitable for tool steel).
Checking the depth gauge
After sharpening the cutters several times, check the height of the depth gauges (the parts in front of each cutter). If the height difference between the cutter and the depth gauge is too small, the chain will not cut efficiently. Depth gauges are sharpened with a flat file, maintaining the correct clearance (usually 0.5-0.7 mm below the tip of the cutter).
Commercial information
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Client: To...ąk,date of purchase 13-02-2026 15:49
Client: Da...ki,date of purchase 20-01-2026 06:26
Client: MA...AK,date of purchase 30-08-2023 14:49
Client: MA...AK,date of purchase 16-02-2021 09:00
