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The CORMAK JMY-870 Sharpener is a high-precision machine for sharpening circular saw blades. Equipped with a durable diamond grinding wheel, it ensures accurate and effective sharpening. Its solid cast-iron construction guarantees stability during operation, while adjustable blade and bevel angles provide full control over sharpening. Rubber pads under the feet reduce noise for improved working comfort. The supplied 125 mm diamond wheel enables sharpening blades from 80 mm to 700 mm in diameter.
CORMAK JMY-870 Sharpener is a precise and reliable machine for sharpening carbide-tipped circular saw blades with diameters from 80 to 700 mm. Designed for professional use, it ensures high sharpening quality and operational stability thanks to its robust cast-iron construction. The set includes a diamond grinding wheel that provides long service life and maximum machining accuracy.
The JMY-870 sharpener is equipped with a precise blade clamping system and tiltable support, enabling exact positioning of the saw in both planes. A powerful 0.25 kW motor with 2,850 rpm ensures optimum cutting power and excellent sharpening quality.
High build quality and structural stability result in even sharpening of every tooth. Thanks to a wide range of angle adjustments and solid blade guidance, the grinder guarantees accuracy of sharpening even for extremely hard materials.
The JMY-870 sharpener is perfect for woodworking shops, production facilities and tool service centres. It performs excellently as a circular saw blade grinder for various geometries and can also be used in industrial sharpening operations.
| Technical Specifications | |
| Min/Max blade diameter | 80 mm – 700 mm |
| Horizontal tilt of blade holder | -35° to +45° |
| Grinding head inclination | -20° to +20° |
| Grinding wheel speed | 2,850 rpm |
| Grinding wheel size | 125 × 10 × 13 mm |
| Motor power | 0.25 kW |
| Power supply | 230 V |
| Net weight | 21 kg |
| Machine dimensions | 750 × 750 × 350 mm |
Don’t wait – invest in precision tool sharpening and extend their lifespan! The CORMAK JMY-870 Sharpener is available now from CORMAK.
Manufacturer: Cormak

CORMAK JERZY ZALEWSKI
Brzeska 120, 08-110 Siedlce, Poland
phone: +48 501 944 934
export@cormak.pl
phone: +48 609 939 400
export@cormak.pl
phone: +48 609 939 051
export@cormak.pl
phone: +48 609 939 741
export@cormak.pl
Diamond Grinding Wheel for Sharpener CORMAK JMY-870
The diamond grinding wheel for the JMY-870 sharpener is a high-quality tool ensuring exceptionally precise and effective sharpening of circular saw blades. Its diamond bond provides long service life and performance even under intensive use. ...More
Diamond Grinding Wheel for Sharpener CORMAK JMY-870
The diamond grinding wheel for the JMY-870 sharpener is a high-quality tool ensuring exceptionally precise and effective sharpening of circular saw blades. Its diamond bond provides long service life and performance even under intensive use. ...More
Diamond Grinding Wheel for Sharpener CORMAK JMY-870
The diamond grinding wheel for the JMY-870 sharpener is a high-quality tool ensuring exceptionally precise and effective sharpening of circular saw blades. Its diamond bond provides long service life and performance even under intensive use. ...More
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