Quality with system
Lenz® ground joint instruments are produced according to the standard DIN 12242 / ISO 383. Each production step is tested by a quality management system, based on DIN ISO 9001 / EN 29001. The tests are examined by a cone measuring device for checking the taper, a surface roughness meter for testing the roughness parameters and a wall thickness measuring apparatus with a magnetic inductive measuring process to guarantee a homogenuos concentricity and wall thickness.
Our grinding equipment is operated via a multi-station system for pre-grinding or finishing NS grinds, with an electromechanical scanning system ensuring consistent quality. Glass grinding is carried out by hand in cases where particularly high standards of function and precision are required. Our grinding equipment is ground using a multi-station system for pre-grinding or finishing NS grinds, with an electromechanical scanning system ensuring consistent quality. Glass grinding is carried out by hand in cases where particularly high demands are placed on function and precision.
Automated Ground Joint Production
Production of ground joint workpieces.
Further Processing
Further processing of cones.
Finishing
The pre- and post-polishing of NS sockets takes place on multiple station grindig machines.
Testing
Lenz® grinding devices are comprehensively tested: conicity testing, roughness and wall thickness testing.
Product features
High taper accuracy of the cones
Precise concentricity
Small roughness of the surface
Excellent tightness
Minimized need for grease
No bend out of line
Our ground joint instruments are marked
with the Lenz® logo and indicate the
respective size of the ground joint.
Conical ground joints acc. to DIN 12242/ISO 383
| Nominal size (NS) | Cone/socket* Ø1 (mm) | Cone/socket* Ø2 (mm) | Length (mm) |
|---|---|---|---|
| 5/13 | 5 | 3,6 | 13 |
| 7/16 | 7,5 | 5,8 | 16 |
| 10/19 | 10 | 8 | 19 |
| 21/21 | 12,5 | 10,3 | 21 |
| 14/23 | 14,5 | 12,1 | 23 |
| 19/26 | 18,8 | 16,1 | 26 |
| 24/29 | 24 | 21 | 29 |
| 29/32 | 29,2 | 25,9 | 32 |
| 34/35 | 34,5 | 30,9 | 35 |
| 45/40 | 45 | 40,9 | 40 |
| 60746 | 60 | 55,3 | 46 |
| 71/51 | 71 | 65,8 | 51 |
| 85/55 | 85 | 79,4 | 55 |
| *approximate measures |
