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Comparison Tormek T-7 220 mm / 200 W
230 V
vs Jet JSSG-10 230 mm / 200 W

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Tormek T-7 220 mm / 200 W 230 V
Jet JSSG-10 230 mm / 200 W
Tormek T-7 220 mm / 200 W
230 V
Jet JSSG-10 230 mm / 200 W
Outdated Product
from $412.00 up to $463.80
Outdated Product
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Machinegrinding and polishinggrinding and polishing
Specs
Rotation modules22
Location of rotation modulescoaxiallycoaxially
Work partdiskdisk
Voltage230 V230 V
Motor power200 W200 W
Sharpening
blades
universal
blades
universal
Dry processing
Disc diameter220 mm230 mm
Bore diameter12 mm
Disc thickness31 mm30 mm
Disc speed90 rpm
150 rpm /90 – 150 rpm/
Wet processing
Disc diameter250 mm250 mm
Bore diameter12 mm
Disc thickness50 mm50 mm
Disc speed90 rpm
150 rpm /90 – 150 rpm/
General
Speed controller
Dimensions270x250x325 mm406x305x330 mm
Weight14.2 kg14.5 kg
Added to E-Catalogmay 2016march 2016

Disc diameter

Regular diameter of the disk (see "Working element") used by the machine for dry processing (see above). When grinding and polishing, usually, we are talking about the maximum diameter of the disk that can be installed on the tool — a larger nozzle will either be ineffective or not fit into the dimensions of the seat at all, but a smaller diameter disk, usually, is installed without problems (of course, if the hole diameter matches — see below). For grinding machines, the diameter of the disc corresponds to the diameter of the sanding pad, which is necessary for the full use of the disc.

The larger the regular disk — the heavier and more powerful the machine, usually, the better it can cope with complex work of a large volume. At the same time, for small everyday tasks like periodically sharpening knives or chisels, a small disc is quite enough.

Bore diameter

The bore diameter of the dry cutting discs (see above) used by the machine. In order for the nozzle to be used normally with the machine, it must match it not only in diameter and thickness (see the relevant paragraphs), but also in the size of the mounting hole.

Disc thickness

The thickness of the "dry" blade (see "Dry Machining") for which the machine is designed. Usually, we are talking about the maximum thickness of the disc that can fit on the seat — most models allow the use of thinner nozzles.

Note that this parameter depends on the type of sharpening (see above): working with chains and saw blades involves a small thickness of the discs, universal sharpening is the opposite. And for grinding models, the thickness of the disc is not relevant at all, even if the disc is provided in the design; see "Machine" for details.

Disc speed

The nominal speed of rotation of the disk for dry processing (see above), provided by the machine; for models with adjustable rotation (see below), the maximum rotation speed.

For the same disc diameter and material, a higher speed provides more intensive processing, and a slower rotation contributes to accuracy and precision. In addition, optimal speeds depend on the composition of the disc and the material being processed; detailed recommendations with specific figures for a particular situation can be found in special sources.

A separate category is grinding machines with disk-shaped working elements: in such units, the actual speed of movement of the disk surface relative to the workpiece depends on how close the contact point is to the centre of the disk.

Bore diameter

Bore diameter of the wet cutting discs used by the machine. In order for the nozzle to be used normally with the machine, it must match it not only in diameter and thickness (see the relevant paragraphs), but also in the size of the mounting hole.

Disc speed

The nominal speed of rotation of the disc for wet processing, provided by the machine; for models with adjustable rotation (see below), the maximum rotation speed. Compared to "dry" disks, "wet" disks have a very low speed — even in the "fastest" models it does not exceed 3000 rpm; this is due to the nature of the process.

In general, a higher speed, ceteris paribus, has a positive effect on performance, a lower speed on accuracy and accuracy.

Speed controller

The ability to change the speed of movement of the working element of the machine. The speed controller may have its own characteristics: in some models it is smooth, in others it is stepped, the number of steps may be different, etc. Anyway, speed control greatly expands the capabilities of the machine, allowing you to adjust the mode of operation to the specific situation.
Tormek T-7 often compared
Jet JSSG-10 often compared