Perfect reaming in all diameters: ExclusiveLine HR 500 carbide reamer bit
With the HR 500 high-performance carbide reamer bit you will find the ideal tooling solution for all diameters from 2.97 to 76.2 mm. To always be able to apply the optimal HR 500 high-performance reamer there is a choice of various HR 500 types.
- Solid carbide reamers up to diameter 38.00 mm
- Carbide- and cermet-tipped reamers up to diameter 76.2 mm
- Solid carbide reamers for intermediate dimensions and stepped tools in HR 500 Active programme
HR 500 – high-performance reamer tools
HR500 CAST reamer tool – new solution for the perfect machining of cast iron
Power reamer bit HR 500 CAST
As special tool for the machining of GGG
Now it’s also possible in GGG to achieve surface finish qualities below Ra 1.2. The solid carbide option of HR 500 GGG gives the power reamer a high stability and rigidity against torsion and radial forces. As is usual with the high-performance reamer HR 500 a very long tool life and high cutting values are possible also when machining GGG.
The new HR 500 CAST reaming bit for the machining of GGG achieves cutting speeds from 120 to 250 m/min, extremely high feed rates and surface finish qualities below Ra 1.2 – naturally with maximum process reliability and high hole quality.
The HR 500 CAST GGG option achieves these outstanding values thanks to its grey cast iron geometry and Gühring’s extremely hard Signum-coating. This combination prevents built-up edges and premature circular land wear: Typical wear factors when machining cast iron are hereby with averted.
HR 500 GT high-performance reamers
Top performance above Ø 40.00 mm
Diversity for perfect machining results
HR 500 GT reamer tool heads are available as a semi-standard range with short delivery times in the diameter range > 40.0 to 76.2 mm in the following material specific designs:
- Carbide-tipped with nanoA-coating for stainless steels, GGG 60, GG, special alloys and non-ferrous metals
- Carbide-tipped with Signum-coating when demands are high on surface finish quality, for GG and GGG 60
- Cermet-tipped for steels and GGG 40/50
Furthermore, we manufacture special tools to customer specific specifications on request.
Optimal cooling lubrication
Thanks to the newly developed, patent pending, redirection screw on the face side of HR 500 GT tool heads, the cooling lubricant reliably reaches the cutting edges. A blocking of the coolant exits by the chips is not possible. Thanks to the especially flat design of the redirection screw the machining of blind holes is possible directly up to the base of the hole.
If required the redirection screw can be removed when machining a blind hole.
EXCLUSIVE Line: HR 500 T carbide reamer
With HR 500 T carbide reamer Gühring provides a solid carbide head reamer from 16 to 39.1 mm diameter
Thanks to the universal HA shank it is possible to flexibly combine HR 500 T with standard chucks and numerous extensions. Thanks to this significant advantage expensive special holders are not necessary. This enables a cost-efficient and a very high quality reaming operation.
An overview of your advantages
- High-performance reamer ensures especially economically efficient production
- flexible holder possibilities thanks to HA shank
- simple extension with shrink fit extension or with hydraulic chuck
- Universal, cast iron or aluminium option
- The standard option for universal application is NanoA-coated
- The cast option with Signum-coating for application in GG and GGG is available as a special solution
- With the carbo-coated special solution for the application in aluminium it is possible to machine aluminium wrought alloys or AlSi cast-alloys
- Various extension possibilities
Extension possibility hydraulic chuck – adjustable reamer HR 500 T
- For the application with large reaming depths and for the simple bridging of many bores HR 500 T can be combined with numerous extensions
- Where a slender holder is required and shrink fitting is not possible, Gühring provides the new hydraulic chuck from clamping-Ø 10 mm
Blind hole option
Through hole option
Flexible combination possibilities
Thanks to the standardised shank to DIN 6535-HA, with short reaming depths HR 500 T can be clamped in conventional hydraulic chucks, shrink fit chucks or other concentricity accurate clamping chucks