Suhner's PolyDrill Multi-Spindle Drilling Heads Available in Various Configurations
The PolyDrill series of multi-spindle heads, available from Suhner, includes fixed and adjustable hole pitches and compact models. Drilling capacity ranges from 0.06" to 1" (1.5 and 25 mm). Minimum hole spacing is 0.27" (7 mm), while maximum hole spacing is virtually limitless. Optional tool holders include ER, ST, JT33, Weldon and other customized styles. Options include axial and radial compensation as well as custom layout and spacing.
The MH 20/5, MH 20/7 and MH 20/10 multi-spindle heads have maximum speeds of 4,000 rpm. Maximum drilling capacities are 5, 7 and 10 mm, respectively. The MH 20/13 head has a maximum drilling capacity of 13 mm and a maximum permissible speed of 3,000 rpm.
The MHF can be equipped with up to 10 spindles in a custom pattern and fixed spindle distance. Maximum drilling capacity ranges from 5 to 13 mm with speeds ranging between 2,500 and 4,000 rpm. The MHFP is equipped with eight spindles with preloaded angular contact bearings for use with carbide tools and fixed spindle distance. Maximum drilling capacity is between 7 and 20 mm with a speed range of 0 to 8,000 rpm.
The VG 4-8 drive system can power up to eight machining units with a single motor with flex shaft power delivery. The speed range for this drive system is between 46 and 9,320 rpm. Flexible drive shafts NA 7, 10 and 12 provide speeds ranging from 12,000 to 20,000 rpm.
Drill more productively by making a few strategic changes to the process. Those same changes may also let you drill dry.
Let's face it. When most shops go looking for process improvements, turning is seldom at the top of the list. Sure, many shops these days are doing fine work in such areas as reducing lathe setup, combining milling and turning operations on a single machine, and automating workpiece handling functions. But for all the talk of high speed machining and other milling and drilling process improvements, precious little of that kind of thinking is being applied to the turning process itself.
Recent tap geometry refinement and advances in coating technologies have made the chip-less, cold-forming operation suitable for a wider range of workpiece materials.