Tool grinder OPTIgrind GH 20T

Technical description:

• A universal tool grinder used for sharpening various cutting tools, with the ability to grind different cutting edge angles, both positive and negative.
• The GH 20T sharpener offers a wide range of angle settings for the moving tool holder assembly.
• The OPTIgrind GH 20T has two clamping devices for the tool being sharpened: one for end mills, drill cutting edges and lands, and centre drills, the other for lathe tools, etc.
• High grinding accuracy on the OPTIgrind GH 20T is ensured by a solid cast bed whose weight easily dampens vibration, while the precision spindle allows highly accurate work.
• Users note that the OPTIgrind GH 20T tool grinder is easy to operate and reliable in service.
• The indexing head has 24 locking positions for rotation angles.
• Delivery includes 5 pcs 5C collets, sizes 4/6/8/10/12mm.
• Adjustable handwheels with micro-feed and graduated dials.
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Specifications:
Sharpener model	GH 20T
Item No.	3100125
Motor	370 W
Supply voltage	380 V
Speed	5000 rpm
Maximum wheel peripheral speed	35 m/s
Tool holder longitudinal feed	140 mm
Tool holder micrometric longitudinal feed	18 mm
Tool holder micrometric cross feed	6 mm
Vertical / clearance angle adjustment	0° — 40°
Horizontal angle adjustment / taper grinding	0° — 180°
Negative angle adjustment	0° — 52°
Sharpening single-flute cutters*	up to ø12 mm
Sharpening lathe tools	up to 21 x 21 mm
Sharpening drills*	ø from 4 to 12 mm
Sharpening end mills*	up to ø12 mm
Collet type	385E (5C) DIN 6341 Ø 37.5 mm; L = 89 mm; 20 °
Collet size	Ø 4/6/8/10/12 mm
Machine dimensions	350 x 450 x 350 mm
Machine weight	45 kg

Scope of delivery:

1. 5 collets 5C, sizes 4 / 6 / 8 / 10 / 12 mm.
2. Corundum wheel 100 x 50 ø20 mm
3. Diamond wheel 100 x 50 ø20 mm
4. Dressing diamond.
5. Operating manual in Russian.
6. Round belt, spare — 1 pc.
7. Cup wheel mounting wrench — 1 pc.
8. Clamping rings for the twist drill sharpening attachment — 1 pc.
9. Insert for the twist drill attachment — 1 pc.
10. Chuck fixing handle — 1 pc.
11. Open-end wrench, size 38-42, for refitting the collet chuck — 2 pcs.
12. Spindle travel lock — 1 pc.

Setting tool for the OPTIgrind GH 20T grinder (supplied). Lathe tool clamping device (supplied). Corundum cup grinding wheel ø 100 x 51 x ø 20 mm, diamond cup grinding wheel ø 100 x 51 x ø 20 mm (supplied fitted to the machine). Twist drill sharpening attachment. End mill sharpening attachment.

Collet set 385E (5C) DIN 6341 ø 37.5 mm, L = 89 mm, collet sizes ø 4/6/8/10/12 mm/