SAFE-LOCK - THE PULL OUT PROTECTION FOR YOUR solid shank tools
High performance machining (HPM) of difficult to machine materials and new machining concepts are demanding for tool holding systems. Slow micro-creeping movements can pull the tool out of the chuck due to the high degree of axial forces.
Even frictional clamping methods with extremely high clamping forces can often not prevent micro-creeping. Thus, high quality work pieces become scrap.
As a consequence, the cutting data on the machine tool is often reduced. Therefore the maximum performance limit of the machine tool cannot be reached; machining becomes ineffective.
On the safe side with Safe-Lock:
- For High Performance Cutting (HPC)
- Highly accurate clamping with best runout accuracy due to shrink fit technology
- High torque due to form closed clamping
- No loss of accuracy
- No pull out of the tool
- No spinning of the tool
- No damages on work piece or machine
- Groove on tool shank is directed so that tool will be pulled into the chuck (depending on direction of rotation)
- Patent granted: licensing for cutting tool manufacturers possible
Safe-Lock - FAQ
Can an endmill with Safe-Lock shank also be clamped into a tool holder without Safe-Lock pins?
Yes, tools with Safe-Lock shank can be clamped in every tool holder that is suitable for HA-shanks according to DIN 6535.
Is the length of tools with Safe-Lock shank adjustable?
Yes, the pull out protection Safe-Lock allows shifting the tool within the Safe-Lock groove without any problems, thus adjusting the demanded Z-length easily and quickly.
How can I shrink in tools with Safe-Lock?
Corresponding to the application of tools with HA-shank, tools with Safe-Lock shank are put in the heated tool holder and are then shrinked in with a twisting movement.
How can I get out broken tools with Safe-Lock shank from a Safe-Lock tool holder?
The HAIMER unshrinking device (Order No. 80.126.00) helps to get out broken tools despite the spiral-shaped Safe-Lock grooves without any problems.
What advantages does the Safe-Lock system offer compared to the well-tried Weldon-clamping system?
Due to the side clamping of the Weldon system, the tool is pushed off center, which causes reduced tool life, poor runout accuracy of up to 0,05 mm and therefore insufficient work piece surface finish. In comparison, HAIMER Safe-Lock provides, in addition to the pull out security, a very high runout accuracy of < 0,003 mm. Only Safe-Lock allows a maximum metal removal rate combined with absolute process reliability and precision!
THE SAFE-LOCK SYSTEM IS THE INDUSTRY'S NEW STANDARD
In the Safe-Lock (Safe-λock®; S-λ®) System, special drive keys in the chuck and grooves in the tool shank prevent the milling cutter from spinning during extreme machining or that it is pulled out of the chuck.
In addition to the frictional clamping forces of the particular clamping system, the tool is held using positive locking in the tool holder through the constructive design of the Safe-Lock System.
The combination of pull-out protection and best runout accuracy lead to a low vibration and as a result very efficient machining.
Due to the increased cutting depths and feeds, the metal removal rate can be increased by up to 100%, and to a similar degree tool wear decreases due to the excellent runout characteristics.