GEKO G78212 Metal Cutting Disc 125 x 1.2 mm
Key information
Availability:In stock (ready to ship)
Shipping time:immediately
Shipping cost:From 3.29 Euro
catalog number:G78212
Availability:
EAN code:5901477100055
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:0,04 kg
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- Product description
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GEKO G78212 Metal Cutting Disc 125 x 1.2 mm
Corundum cutting disc designed for cutting stainless steel, mild steel and non-ferrous metals. The fibreglass-reinforced construction ensures safe operation at speeds up to 12,200 rpm.
Technical features
Aluminium oxide abrasive grain
Aluminium oxide (Al₂O₃) has a hardness of 9 on the Mohs scale. It cuts both unalloyed steels and corrosion-resistant alloys effectively. The grain stays sharp longer than standard abrasives.
Fibreglass-reinforced resin bond
A synthetic resin bonds the abrasive grain, while a fibreglass mesh stabilises the disc structure. The layered construction minimises the risk of cracking under side loads and ensures safe operation at maximum speed.
1.2 mm thickness
A thin disc produces a narrow kerf, which means less material loss and a lower thermal load. When cutting steel sections this translates into less heat distortion in the cutting zone.
80 m/s peripheral speed
The permissible peripheral speed sets the maximum safe rpm for a given disc diameter. For a 125 mm disc the 80 m/s limit corresponds to 12,200 rpm. Exceeding this value can cause the disc to burst.
Technical specification
| Model | GEKO G78212 |
| Outer diameter | 125 mm |
| Disc thickness | 1.2 mm |
| Mounting bore diameter | 22.23 mm |
| Abrasive grain type | Aluminium oxide |
| Bond type | Fibreglass-reinforced resin |
| Maximum speed | 12,200 rpm |
| Permissible peripheral speed | 80 m/s |
| Materials cut | Stainless steel (INOX), mild steel, alloy steel, non-ferrous metals, aluminium |
Applications
- Cutting stainless steel sections (tube, angle, channel)
- Work on steel structures and welded components
- Cutting steel sheet up to a few millimetres thick
- Work with aluminium and aluminium alloys
- Cutting copper and brass pipe
- Dismantling metal components
- Repair work in mechanical workshops
- Preparing components for welding
Tool compatibility
The disc fits 125 mm angle grinders with an M14 spindle thread or a 22.23 mm bore mounting system. Before fitting, check the grinder's maximum speed – it must not exceed 12,200 rpm. Most common 125 mm grinders run at 10,000–12,000 rpm.
Use and maintenance
Safety
Check the condition of the disc before every use – cracks, chipping or deformation mean it must not be used. The disc must be fitted in the direction of rotation shown on the label. The grinder guard and personal protective equipment – goggles, gloves and hearing protection – must be used.
Cutting technique
Cut without applying excessive pressure – the weight of the tool is enough for efficient work. Too much pressure overheats the disc, shortens its life and can cause it to jam. When cutting stainless steel, lower speeds are advisable (if the grinder has speed control) to limit heat build-up in the material.
Storage
Store discs in a dry room, either flat or hanging. Contact with moisture can weaken the resin bond. Avoid direct sunlight and temperatures above 40°C.
Commercial information
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Client: Gr...ko,date of purchase 20-05-2022 09:11
Client: An...as,date of purchase 27-04-2020 11:24
